Publications

The Study on how Model Selection Propagates in High Frequency Electromagnetic-Thermal Dosimetry
This paper is on the electromagnetic (EM)-thermal dosimetry workflow in GHz frequency range. The hybrid bound- ary element …
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Sustav regulacije prekidackog reluktantnog generatora s uracunatim meduinduktivitetima, remanencijom i gubicima u zeljezu
U ovoj doktorskoj disertaciji predstavljen je napredni regulacijski sustav prekidackog reluktantnog generatora s asimetricnim mosnim …
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Several Aspects of Human Exposure to Low Frequency Fields: Incident and Internal Field Dosimetry Procedures and Related Legal issues
The paper deals with simple and efficient dosimetry procedures for human exposure to low frequency (LF) electric and magnetic fields at …
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Recent Advances in Power Quality Analysis and Robust Control of Renewable Energy Sources in Power Grids
In modern power grids with a large share of distributed power production, achieving high power quality is a challenging task. The …
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Realization of the Laboratory Prototype of the Three-Phase Split-Source Inverter
This master’s thesis first describes the operating principle of the Z-source inverter and presents several examples of converter …
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On some computational aspects for electromagnetic-thermal dosimetry of mm waves
This work is on the use of a state-of-the-art hybrid boundary element method/finite element method (BEM/FEM) for electromagnetic (EM) …
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Numerical Model for Computation of Induced Voltages along Double-circuit Overhead Transmission Lines
This paper presents a simple and reliable algorithm for the harmonic analysis of both current and voltage conditions along …
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Novel Space-Vector PWM Schemes for Enhancing Efficiency and Decoupled Control in Quasi-Z-Source Inverters
This paper investigates the development of pulse width modulation (PWM) schemes for three-phase quasi-Z-source inverters (qZSIs). These …
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Mitigating Dead-Time Impact in a Three-Phase Split-Source Inverter: A Simple Compensation Method
The use of a split-source inverter (SSI) has gained popularity due to its ability to achieve boost operation without requiring …
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Magnetotherapy Modeling using a Simplified and Anatomical Human Body Models
The paper is on the use of a boundary integral approach to modeling magnetotherapy treatment procedure. We considered two homogeneous …
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Machine Learning Classifier for Supporting Generator’s Impedance-Based Relay Protection Functions
Transient stability of the electric power system still heavily rests on a timely and correct operation of the relay protection of …
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Estimation of Effective Length of Type-A Grounding System According to IEC 62305-3 Using a Machine Learning Regression Model
Two types of grounding systems are recommended for use in the international standard IEC 62305-3, Part 3: Physical damage to structures …
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Analysis of Power System Electromagnetic Transients Using the Finite Element Technique
In this paper, a numerical model for the analysis of electromagnetic transients in a power system, based on the finite element …
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Analysis of Magnetotherapy Device-Induced Fields Using Cylindrical Human Body Model
This paper deals with the analysis of induced current density and the induced electric field in the body of a human exposed to the …
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Algorithm for Generating Synthetic Datasets of Lightning Flashovers on Distribution Lines
This paper describes an algorithm for generating synthetic datasets of lightning flashovers on medium voltage overhead distribution …
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Adaptation of Microinverter Reference Design for Integration with Battery Energy Storage Systems in Microgrids
The paper presents an adaptation of the microinverter platform from Texas Instruments to incorporate a battery energy storage system …
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Adaptation of Microinverter Reference Design for Integration with Battery Energy Storage Systems in Microgrids
A New Look to the Maxwell’s Equations and Wave Equations in Conducting Media
This paper presents a new system of Maxwell’s equations and wave equations in conducting media containing electromagnetic field …
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A Method for Determining the Envelope of Induced Electric Field on a Simple Human Head Model by Peaks Detection
This paper is on the use of a hybrid boundary element method/finite element method (BEM/FEM) to determine the induced electric field in …
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A Low-Cost Test Platform for Performance Analysis of Phasor Measurement Units
In this paper, a customizable low-cost voltage waveform generator based on a real-time desktop PC and embedded data acquisition card …
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A highly accurate algorithm for computation of complex-valued Bessel, Neumann and Hankel functions of integer order
In this paper, a highly accurate algorithm for computation of complex-valued Bessel, Neumann and Hankel functions of integer order is …
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Wind Energy Conversion System Using Advanced Speed Control and Model-Based Loss Minimization
This paper presents a new optimization strategy for a stand-alone wind energy conversion system (WECS). The WECS is comprised of a …
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Truths and false beliefs about early electrification in Europe and North America
This paper describes the early development of electrification in Europe and North America. The general electrification of the world has …
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The role of electrical energy storage system in the future power systems
This paper deals with primary types and classifications of energy storage systems. Even though there are various advanced solutions to …
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THE IMAPCT OF ELECTRIC VEHICLE CHARGING STATION CONNECTION ON THE ELECTRICAL NETWORK AND THE POSSIBILITY OF IMPROVING NETWORK CONDITIONS THROUGH OPTIMAL CHARGING
THE IMAPCT OF ELECTRIC VEHICLE CHARGING STATION CONNECTION ON THE ELECTRICAL NETWORK AND THE POSSIBILITY OF IMPROVING NETWORK …
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Simultaneous exposure of humans to fields of different frequency – incident and internal field dosimetry with respect to national and international legal acts
The paper deals with simultaneous exposure of humans to different low frequency (LF) electric and magnetic fields within the high …
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Secondary and Primary Goal-Function-Based Control in Inverter-Interfaced Microgrids
In this paper a comprehensive, primary and secondary control of a grid-connected inverter in the role of microgrid interface unit is …
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Review of Select Theoretical and Practical Aspects of the Generator Relay Protection Application
Relay protection of synchronous generators of higher power regularly includes the application of a number of protection functions, some …
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Protection of Photovoltaic Systems Against Lightning Strikes
The task of the final thesis was to describe the most common procedures for protecting photovoltaic systems with an emphasis on …
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PROFITABILITY OF SMALL SOLAR POWER PLANT FOR SELF CONSUMPTION
The final paper describes the basic parts of solar power plants (SP), the method of connection to the power grid, the basic structure …
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Optimization model for energy storage operation in a market-oriented power system
As the electricity demand constantly grows, the world is increasingly focusing on generating electrical energy from renewable sources, …
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OPTIMAL VOLTAGE REGULATION IN ACTIVE DISTRIBUTION NETWORKS BY STATIC/DYNAMIC TRANSFORMER CONTROL AND DISTRIBUTED GENERATION POWER FACTOR MANAGEMENT
In the introductory part of the paper, the reasons for voltage regulation in the distribution network are explained, which is necessary …
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Optimal Electric Vehicle Parking Lot Energy Supply Based on Mixed-Integer Linear Programming
E-mobility represents an important part of the EU’s green transition and one of the key drivers for reducing CO2 pollution in urban …
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Optimal Electric Vehicle Parking Lot Energy Supply Based on Mixed-Integer Linear Programming
On the Use of Planar Skin Models in High Frequency Dosimetry Assessment
The paper is on the use of a surface integral equation (SIE) based formulation and the conventional method of moments (MoM) in high …
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Numerical model for the analysis of electromagnetic transients in power system
There are various software packages for the analysis of electromagnetic processes in the power system. According to the literature, the …
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Numerical model for induced voltages calculation along double circuit overhead transmission lines
This paper presents a simple and reliable algorithm for harmonic analysis of both current and voltage conditions along two-system …
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Numerical Filtering of Electric Field in Human Head Models Exposed to High-Frequency EMF
This paper is on the use of a hybrid boundary element method/finite element method (BEM/FEM) to determine the induced electric field in …
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Modification and testing of the microinverter development kit for the purpose of connecting the battery system
This paper presents the testing of the modified TMDSSOLARUINVKIT solar microinverter development kit manufactured by Texas Instruments. …
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Modification and testing of the microinverter development kit for the purpose of connecting the battery system
Modeling of Axial Flux Permanent Magnet Synchronous Machine in Solidworks
The thesis describes the specificity of the axial electric motor with permanent magnets and compares it with a competitive radial …
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Modeling A Complex DC Electrical Circuit In Simulink
The task of the final thesis was to model complex resistor-capacitor circuits in Simulink and to analyze the transient phenomena of …
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Model Predictive Current Control of an Induction Motor Considering Iron Core Losses and Saturation
The paper considers the model predictive current control (MPCC) of an induction motor (IM) drive and evaluates five IM models of …
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Manifold Learning in Electric Power System Transient Stability Analysis
This paper examines the use of manifold learning in the context of electric power system transient stability analysis. Since wide-area …
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Magnetotherapy Device Induced Fields in Simplified Human Body Model
The paper deals with the analysis of induced current density and the induced electric field in the body of a human exposed to magnetic …
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Laser-guided lightning
Lightning discharges between charged clouds and the Earth’s surface are responsible for considerable damages and casualties. It is …
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IMPACT OF RENEWABLE ENERGY SOURCES CONNECTION ON THE ELECTRICITY GRID
Electricity generation through distributed sources is increasingly used in the power system. Some benefits of this method of …
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Hybrid Wind-Solar Power System with a Battery- Assisted Quasi-Z-Source Inverter: Optimal Power Generation by Deploying Minimum Sensors
This paper presents a hybrid renewable energy system (RES) including wind and photovoltaic (PV) power sources. The wind energy …
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Harmonic Analysis of Alternating Current Electrical Circuits Using the Node Potential Method in Python
The goal of the final thesis was to automate the calculation of the node potential method using a program written in Python. AC …
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Electric Vehicle Charging Station Power Supply Optimization with V2X Capabilities Based on Mixed-Integer Linear Programming
The European Union is committed to both lowering greenhouse gas emissions and promoting the adoption of electric vehicles (EVs) on its …
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Electric Vehicle Charging Station Power Supply Optimization with V2X Capabilities Based on Mixed-Integer Linear Programming
Efficient Integration of Electric Vehicles through Optimal Coordinated Charging and Reactive Power Support
This paper presents a central control algorithm for EV optimal charging management with EV reactive power support. Based on the …
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Efficient Integration of Electric Vehicles through Optimal Coordinated Charging and Reactive Power Support
Development of tool for calculating PV plant annual production and investment profitability under self-production model
The paper presents a tool for calculating the profitability of investment in small photovoltaic power plants. At the beginning of the …
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Deterministic-Stochastic Modeling of Transcranial Magnetic Stimulation featuring the Use of Method of Moments and Stochastic Collocation
This work examines the influence of the human brain tissue parameters’ uncertainty and the stimulation coil positioning variations …
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Design and Operation of a Three-Phase Split-Source Inverter with a Saturable Inductor
In low-voltage-fed applications, single-stage inverters with buck and boost capabilities represent an appealing alternative to …
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Curve of limiting parameters in risk analysis of MV overhead line outages
This paper studies risk of outages on medium voltage (MV) overhead distribution lines due to flashovers from nearby indirect lightning …
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Computation of Spectral-Domain Green's Functions of the Infinitesimal Current Source in a Planar Multilayer Medium
This paper presents a novel theoretical and numerical approach for an infinitesimal current source (ICS) located in a planar isotropic …
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Atmospheric Overvoltages Suppression: In Situ and Analytical Validation
This article deals with the issues arising from non-adequately designed grounding system of the telecommunication cell tower, in situ …
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Analysis of Planar Skin Model Exposed to Dipole Antenna Radiation Featuring the Use of the MoM-MoM Approach
The paper deals with high frequency dosimetry analysis of a planar skin model exposed to a dipole antenna radiating in the GHz …
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Analysis of electric vehicle consumption characteristics
This thesis analyzes the data sets from charging stations from different locations, some of them are public, i.e. availabe to everyone …
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An Approach to Thermal Modeling of Power Cables Installed in Ducts
The power cables laying in the urban areas require utilization of the protective ducts, mainly to facilitate the faulty section …
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An active metamaterial cell concept for nonreciprocal vibroacoustic transmission
The challenge of inducing stable and robust nonreciprocal transmission of sound is seen as an important milestone on the path towards …
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A Tool for Optimum Multi-Period Distribution Network Expansion Planning
This paper presents a tool for the automatic creation of an optimal stage plan for the development of the distribution network and the …
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A Tool for Optimum Multi-Period Distribution Network Expansion Planning
Uncertainty quantification and sensitivity analysis of transcranial electric stimulation for 9-subdomain human head model
This paper deals with uncertainty quantification of transcranial electric stimulation (TES) of realistic human head model. The head …
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Transient Linear Circuit Analysis Using Finite Element Technique
In this paper, a novel algorithm for a transient linear circuit analysis based on the Finite Element Technique (FET) was established. …
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Topologies of Single-Phase Power Electronic Converters for Connection of Photovoltaic Sources to the Grid
In this thesis, the basic properties of PV cells are first described. By connecting PV cells, usually in series, a PV module is …
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The role of pumped storage hydropower plants in the electricity market
The final paper briefly describes hydroelectric power plants, their applications and divisions, and their impact on the costs of …
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The Beginning of the Development of the Electrification in Europe and North America
The paper describes the very beginning of the development of electrification in Europe and North America. The general electrification …
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Testing the thermal conductivity of loose material used for high-voltage cable beds from the locations of Plano, Berica and Kuk
Design basis for dimensioning HV cable bedding. Material samples from the Plano, Berica and Kuk quarries
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Statistical Safety Factor in Lightning Performance Analysis of Overhead Distribution Lines
This paper introduces a novel machine learning (ML) model for the lightning performance analysis of overhead distribution lines (OHLs), …
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Simulation Analysis of an Island Photovoltaic System for Supplying Single-Phase AC Loads
In the theoretical part of the paper – in the second and third chapters – the operating principle is described and the basic equations …
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Semiconductor Losses Calculation of a Quasi-Z-Source Inverter with Dead-Time
A quasi-Z-source inverter (qZSI) belongs to the group of single-stage boost inverters. The input dc voltage is boosted by utilizing an …
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Selection of optimal capacity and analysis of profitability of investment in battery storage within the WPP Vrataruša
The study considers the construction of a battery system within the existing wind farm connected to the transmission grid, which will …
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Robust model for EV driven grid impact estimation
Electric vehicle presence is continually increasing following various incentives for environmental impact reduction. This increase will …
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Power quality analysis of the photovoltaic power plant FESB
Solar power plants are most often connected to the distribution system, and their use leads to a load on the power grid in terms of …
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Photovoltaic System with a Battery-Assisted Quasi- Z-Source Inverter: Improved Control System Design Based on a Novel Small-Signal Model
This paper deals with a photovoltaic (PV) system containing a quasi-Z-source inverter (qZSI) and batteries connected in parallel with …
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Overview of the Most Often Used Methods for Testing Electrical Installations
The task of the final thesis was to review the most commonly used methods for testing electrical installations with an emphasis on the …
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Overview and Implementation of Algorithms for Monitoring the Battery State of Charge
In this paper, the SOC of two lead-acid batteries of different ages and capacities of 75 Ah was estimated at the simulation level. The …
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OPTIMAL DISTRIBUTION NETWORK PLANNING BASED ON MIXED INTEGRATED LINEAR PROGRAMMING
Planning the development of the distribution network is the process of determining the optimal upgrade of the distribution network …
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On the Applicability of Numerical Quadrature for Double Surface Integrals at 5G Frequencies
The human exposure assessment to wireless communications systems including the fifth generation (5G) mobile systems is related to …
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Modeling Of A Three-Phase Two-Winding Transformer In EMTP-RV Software
In the first, introductory chapter, the transformer was mentioned as the main element of this thesis. The aim of the thesis and the …
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Machine Learning in Power System Dynamic Security Assessment
This Special Issue will deal with novel approaches to the power system dynamic security assessment, and related power disturbance …
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Lightning flashover simulations on medium voltage distribution lines
Dataset has been generated from the Monte Carlo simulations of lightning flashovers on medium voltage (MV) distribution lines. It is …
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INSIGHT INTO THE ELECTRIC VEHICLE CONSUMPTION CHARACTERISTICS AND THE DEGREE OF UTILIZATION OF CHARGING STATIONS
Electric vehicles can play a central role in reducing greenhouse gas (GHG) emissions if they are powered by electricity produced from …
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Improved Algorithm for FET Analysis of Transient Linear Circuit Problems
Most of the circuit simulators such as SPICE apply the backward differentiation formulae (BDF) integration method to the system of …
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Impact of the Electricity Market Prices during the COVID-19 Pandemic on Energy Storage Operation
With the restructuring and deregulation of the power system, storage owners, generation companies or private producers can offer their …
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IEEE New England 39-bus test case: Dataset for the Transient Stability Assessment
The dataset contains 350 features engineered from the phasor measurements (PMU-type) signals from the IEEE New England 39-bus power …
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Grid Voltage Amplitude and Frequency Real-Time Estimation using Linear Kalman Filter
The paper deals with hardware-in-the-loop (HIL) laboratory setup consisting of the arbitrary waveform generator (AWG) and the device …
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Experimental Implementation of Mppt Algorithms in a Photovoltaic-Fed Battery Charging System
In this thesis, MPPT methods for a PV system with a buck converter, a programmable load and batteries are analyzed at the experimental …
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Experimental Determination of Lead-Acid Batteries Parameters and Charge Characteristics
This thesis describes the working principle of the lead-acid battery and the associated basic definitions and features. The division of …
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Error analysis of multi-step day-ahead PV production forecasting with chained regressors
This paper presents a comprehensive error analysis of the day-ahead photovoltaic (PV) production multi-step forecasting model that uses …
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Error analysis of multi-step day-ahead PV production forecasting with chained regressors
This paper presents a comprehensive error analysis of the day-ahead photovoltaic (PV) production multi-step forecasting model that uses …
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Electrical and process measurement technique in the beginning of electrification
The paper discusses measurement techniques for measuring electrical and process quantities in the early stages of electrical …
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Dynamic Equivalent Circuit Models of Lead-Acid Batteries – A Performance Comparison
This paper presents a performance comparison of the four most commonly used dynamic models of lead-acid batteries that are based on the …
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Development of a Project of a Photovoltaic Plant Rated Above 500 kW and Installed on the Production Facility Roofs
Achieving sustainable energy development implies investing in renewable sources of electricity such as photovoltaic power plants, wind …
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Dataset of lightning flashovers on medium voltage distribution lines
This synthetic dataset was generated from Monte Carlo simulations of lightning flashovers on medium voltage (MV) distribution lines. It …
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Control systems of a photovoltaic-fed quasi-Z-source inverter with a novel pulse-width modulation
This doctoral dissertation presents three new control systems with a quasi-Z-type inverter powered by a photovoltaic source. The first …
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Complex Hydrological System Inflow Prediction using Artificial Neural Network
Artificial neural networks have been successfully used to model and predict water flows for a few decades. Different network types have …
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Calculation of currents during two separate simultaneous line-to-earth short circuits and partial currents through earth according to Croatian standard HRN EN 60909-3
In this thesis, the Croatian standard HRN EN 60909-3 is described in detail, and examples of calculations in the NEPLAN program are …
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Bagging Ensemble Classifier for Predicting Lightning Flashovers on Distribution Lines
This paper introduces a bagging ensemble classifier, built from support vector machines (SVM), for predicting lightning flashovers on …
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Artificial Intelligence Techniques for Power System Transient Stability Assessment
The high penetration of renewable energy sources, coupled with decommissioning of conventional power plants, leads to the reduction of …
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Application of digital twin technology in transformer relay protection
The paper presents work with the Siemens DIGSI 5 software package, using the example of a numerical relay device for differential …
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Analytical Solution for the Transient Current Induced along the Vertical Grounding Electrode
The paper deals with the analysis of the Pocklington integro-differential equation in the time domain and its analytical solution for …
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Advanced sliding mode speed observer with compensated stray-load and iron losses for a stand-alone wind turbine-driven induction generator
Model-based speed estimation schemes in sensorless field- oriented control (FOC) of induction machines (IMs) are designed on the basis …
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Advanced Control Techniques for Wind/Solar/Battery Systems
This Editorial summarizes the papers of the Special Issue entitled ‘Advanced Control Techniques for Wind/Solar/Battery Systems’ …
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Active Distribution Network Voltage Profile Optimization Using Mixed Integer Linear Programming
The quality of electrical energy delivered to the customers greatly depends on the voltage deviation. To avoid negative effects on …
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Active Distribution Network Voltage Profile Optimization Using Mixed Integer Linear Programming
A general model of optimal energy storage operation in the market conditions
In liberalized electricity markets, energy storage devices, especially those with high capacity, can generate income through multiple …
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Wavelet Multi-Scale Analysis of Wind Turbines Smoothing Effect and Power Fluctuations
With the increased interest for co-location of wind and solar PV plants, the issues related to power fluctuations and their impact on …
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Unit Cube Test for Double Surface Integrals in Frequency Domain Integral Equation Formulations
The numerical solution of the frequency domain integral equation based formulations require the solution of various double surface …
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The laser lightning rod project
Lightning is highly destructive due to its high power density and unpredictable character. Directing lightning away would allow to …
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TECHNO-ECONOMIC ANALYSIS OF A PHOTOVOLTAIC POWER PLANT MODEL WITH A BATTERY STORAGE IN SAM-NREL PACKAGE
This paper describes the possibilities of using the sun and solar radiation to obtain electricity and what types of technology are used …
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Study on the Suitability of Numerical Integration at 5G Frequencies Using Unit Cube Test
The assessment of human exposure to 5G mobile systems requires the use of numerical methods such as method of moments (MoM). MoM …
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Study on testing the thermal characteristics of the soil at the locations of the 110 kV cable connection Crikvenica Krk
A well-chosen and dimensioned cable bedding can significantly improve heat dissipation from the cable surface and thus extend its …
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Stochastic-Deterministic Thermal Dosimetry Below 6 GHz for 5G Mobile Communication Systems
The article deals with stochastic-deterministic thermal dosimetry in lower portion of GHz frequency range for human exposure to …
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Stochastic-deterministic boundary element modelling of transcranial electric stimulation using a three layer head model
This paper deals with the boundary element (BE) approach to modelling of transcranial electric stimulation as an alternative to the …
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Statistical analysis of switching overvoltages using the EMTP software package
Switching overvoltages are the main sources of disturbances in power plants. Switching overvoltages occur during the switching and/or …
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Short circuit fault analysis in NEPLAN
This thesis studies the characteristics and possibilities of using the computer program NEPLAN in engineering practice and for teaching …
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Sensorless Maximum Power Control of a Stand- Alone Squirrel-Cage Induction Generator Driven by a Variable-Speed Wind Turbine
For the cost-effectiveness of variable-speed wind energy conversion systems (WECSs), it is extremely important to extract the maximum …
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Sensitivity analysis of the direct time domain analytical solution for transient impedance of the horizontal grounding electrode using ANOVA approach
The paper deals with the sensitivity analysis of the transient impedance of the horizontal grounding electrode. Simple and efficient …
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Selecting Optimal Numerical Integration Rules for Double Surface Integrals on Triangular Domains
This work is on a rather simple and intuitive approach for the selection of optimal quadrature order in terms of lowest number of …
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Robust Nonlinear Economic MPC based Management of a Multi Energy Microgrid
In this paper, the nonlinear economic model predictive control based energy management of a multi-energy microgrid is presented. The …
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Robust Nonlinear Economic MPC based Management of a Multi Energy Microgrid
Risk analysis in the design of lightning protection system according to HRN EN 62305
The thesis deals with risk analysis when designing a lightning protection system using the HRN EN 62305 standard. The paper presents a …
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Report on the heat resistance of the bedding material of 110kV cable from mine Plano
Design basis for dimensioning HV cable bedding. Material samples from the Plano quarry near Trogir
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Reliability analysis of main circuit connection schemes using the NEPLAN program
This paper describes the theory of reliability, the application of network rules to obtain reliability indicators, the basics of the …
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Pre-feasibility study of the construction of an electrolyser within the area of ​​the Rijeka Oil Refinery
As part of the study, different variants of electrolyzer plant construction with standard fixed typical nominal powers and electrolyzer …
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Power System Transient Stability Assessment Using Stacked Autoencoder and Voting Ensemble
Increased integration of renewable energy sources brings new challenges to the secure and stable power system operation. Operational …
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Power System Transient Stability Assessment Simulations Dataset - IEEE New England 39-bus test case
This dataset contains phasor measurements (PMU-type) signals from the IEEE New England 39-bus power system test case network, which are …
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Parameter Analysis of Frequency Dependent Metal Oxide Surge Arrester Model in EMTP–RV Program
The task of this thesis was to study the frequency-dependent model of a metal oxide surge arrester developed by the IEEE working group …
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OPTIMAL CAPACITY AND MANAGEMENT OF PRODUCTION/STORAGE UNITS IN ISLAND MICROGRID
The purpose of this paper was to formulate and optimize a sustainable and cost-effective micro grid solution based on a solar …
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Optical Sensor For Measuring Hydrogenerator Vibrations - Preliminary Results
In hydroelectric power plants (HP), vibration monitoring is usually provided for various parts of the hydropower equipment, including …
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On the time response and radial propagation of turbulence during ECRH power modulation in the TJ-II stellarator
Significant progress has been reported regarding the physics understanding of empirical actuators like Electron Cyclotron Resonance …
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On the Initiation of Upward Negative Lightning by Nearby Lightning Activity: An Analytical Approach
Upward lightning occurs generally from tall structures. The mechanism of the initiationof upward lightning is not yet fully understood. …
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On the edge element boundary element method/finite element method coupling for time harmonic electromagnetic scattering problems
Over recent decades coupled MoM/FEM formulation emerged as dominant method for solving EM scattering problems over inhomogeneous …
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On the application of hybrid BEM/FEM for inhomogeneous electromagnetic scattering from small maritime targets
From the standpoint of detectability of small maritime objects by a ship’s radar system, the radar cross section (RCS) of a maritime …
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Magnetic field strenght calculation using XGSLab software package
This thesis describes the properties and capabilities of the XGSLab software package and its modules. The goal was to independently …
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Lightning Overvoltage Protection of Step-Up Transformer Inside a Nacelle of Onshore New-Generation Wind Turbines
This paper presents an electromagnetic transient analysis of lightning-initiated overvoltage stresses of the step-up transformers …
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LCL Filter Design with Amorphous Core Inductor for 100 kVA Energy Storage Converter
Today, three-phase voltage source converters (VSC) are usually connected to the grid through LCL filters. The design of the LCL filter …
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Laser lightning rod and artificial fog dissipation
Laser lightning rod and artificial fog dissipation
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Investigation of Dynamic Equivalent Methods for Network Reduction of Power Grid
This work introduces the need for the implementation of dynamic power network reduction. The current state of the art reveals the main …
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HYBRID CHARGING STATION FOR ELECTRIC CARS AND BICYCLES
This final thesis describes the principle of electric chargers for electric vehicles. The types, charging modes and the costs of the …
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Grid-connected and Islanded Control of Energy Storage Converter
The development of distributed generation systems allows for the widespread application of microgrids in electric power systems. In …
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Full–wave time–harmonic electromagnetic model of thin–wire conductor in a multilayer conductive medium
In this doctoral dissertation, a 3D exact harmonic electromagnetic model of an infinitesimal thin-wire conductor (ITV) in a …
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Fire prevention in buildings
The final paper lists the laws that link fire protection and building construction. Parts that closely link the two areas are extracted …
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Experimental Investigation of a Standalone Wind Energy System with a Battery-Assisted Quasi-Z-Source Inverter
This paper presents a wind energy conversion system (WECS) for grid-isolated areas. The system includes a squirrel-cage induction …
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Evaluation of the statistical distributions of transient impedance of the horizontal grounding electrode subject to lightning strike
In the framework of the lightning protection systems (LPS), transient impedance is considered as a key parameter to determine the …
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Efficiency Boost of a Quasi-Z-Source Inverter: A Novel Shoot-Through Injection Method with Dead-Time
A quasi-Z-source inverter (qZSI) is a single- stage inverter that enables a boost of the input dc voltage through the utilization of a …
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Distance protection analysis using EMTP software
Distance protection is the basis for protecting high-voltage lines in the 400, 220 and 110 kV transmission network from the occurrence …
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Development of thermo-electrical model of photovoltaic panel under hot-spot conditions with experimental validation
This work was focused on development of thermo- electrical numerical model for circumstance of free-standing photovoltaic (PV) panel …
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Development of the distribution network of Elektrodalmacija Split, field units in Sinj, Imotski, Vrgorac, Makarska, Ploče, Metković, Brač, Hvar, and Vis, as well as the island of Šolta, for the next 20 years
In this study, a proposal for the development of the distribution network is provided based on the current state and projected growth …
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Development of a Device for Recording Current-Voltage Characteristics of Photovoltaic Modules
The first part of the final paper describes the idea and operation of the device for recording the current-voltage characteristic. At …
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Determining the Residual Magnetic Flux Value of a Single-Phase Transformer Using a Minor Hysteresis Loop
Residual magnetic flux can cause significant problems in electric power system operation if not taken into consideration. The …
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Designing the relay protection system of the substation using Siemens DIGSI 5 software
This paper analyzes different types of relay protection devices used to protect components in the power system. In addition to …
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Coupled Boundary Element: Stochastic Collocation Approach for the Uncertainty Estimation of Simulations of Transcranial Electric Stimulation
In this paper, the authors present a deterministic model of transcranial electric stimulation and develop a Boundary Element Method …
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Computation of the Field Apparent Resistivity of the Soil for Driven-rod Electrodes
In this paper, analytical formulas for computation of the field apparent resistivity of the soil for driven-rod electrodes are …
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Bidirectional Recoil Leaders in Upward Lightning Flashes Observed at the Säntis Tower
We report the observation of three negative upward flashes recorded by a high-speedcamera at the Säntis Tower during the Summer of …
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Analysis of Type A Grounding System Effective Length According to HRN EN 62305
The task of this thesis was to analyze in detail the effective length of the simplest version of the type A grounding system in …
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Analysis Of Overvoltage Protection Of A High-Voltage Transformer Using EMTP-RV
The task of the thesis was to model a high-voltage network and conduct a detailed analysis of the overvoltage protection of a power …
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Analysis of backflashover probability on high voltage transmission lines
The statistical probability of flashover on high-voltage (HV) overhead lines is an important factor in ensuring the continuity of …
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Advanced computation of the field apparent resistivity of the soil for driven-rod electrodes
In this paper, analytical formulas for the computation of the field apparent resistivity of the soil for driven-rod electrodes are …
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Voltage regulation using an SVC substation
This paper elaborates the idea of ​​regulating the voltage of a transmission line using an SVC plant. It explains which principles …
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Virtual Storage-Based Model for Estimation of Economic Benefits of Electric Vehicles in Renewable Portfolios
The expected increase in the presence of electric vehicles raises numerous questions regarding their impact on the market relations. …
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Virtual Storage-Based Model for Estimation of Economic Benefits of Electric Vehicles in Renewable Portfolios
Transient Impedance of the Synchronous Generator Grounding Electrode due to Short Circuit Current
This paper presents a novel approach for the calculation of the transient impedance of the horizontal electrode used as a synchronous …
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Transformer restricted earth fault protection
The task of this thesis was to describe limited earth fault protection and to make its application on a concrete example using the …
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THE ROLE OF ELECTRIC VEHICLE CHARGING STATIONS IN STABILIZATION OF THE ELECTRIC POWER SYSTEM
In this thesis, in the first part we discussed about different charger topologies for electrical vehicle. We describe three levels of …
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The impact of solar power plants on the environment
Photovoltaic power plants (PPPs) or solar power plants are renewable energy sources that are gaining increasing importance today. Solar …
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The electrical analogy model of the gas pressure reducing and metering station
To overcome balancing challenges in the power system, when existing balancing capacities are not sufficient, one of the most used …
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Synchrophasors Determination Based on Interpolated FFT Algorithm
Within the standard IEEE C37.118 applications and proposed hardware structure of a phasor measurement unit (PMU) are described. This …
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Stochastic Dosimetry of a Three Compartment Head Model
The deterministic three-compartment head model based on the hybrid finite element/boundary element method (FEM/BEM) formalism is …
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Speed-sensorless vector control of an induction generator including stray load and iron losses and online parameter tuning
Field-oriented control (FOC) is standardly used in high-performance induction machine (IM) applications. However, the performance of …
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Simulation of ship power system using the software package MATLAB
The task of the final work was to model the power system of the ship, which includes the electric propulsion system, in the Simulink …
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Simulation Analysis of a Photovoltaic System With DC-DC Buck and Boost Converters and Output Voltage Control
In this paper, a simulation analysis of a system for powering a working load from a photovoltaic module via a DC-to-DC converter, in …
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Simulation Analysis of a Photovoltaic System with a DC-DC Buck Converter and Input Power Optimization
This thesis analyzes a photovoltaic system with a DC-DC step-down converter without galvanic isolation, in which three different MPPT …
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Simplified assessment of specific absorption (SA) in planar human tissue model due to transient radiation from dipole antenna
The paper deals with a simplified calculation of the specific absorption (SA) in planar representation of the human muscle tissue when …
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Recovery of a vandalized canvas painting our Lady of the Rosary from Vrlika (Croatia)
This study is related to the major recovery project of an 18th century oil painting on canvas depicting Our Lady of the Rosary, the …
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PROGRAM FOR CALCULATION OF INDUCTANCE AND CAPACITANCE OF TRANSMISSION LINES
The introductory part explains which electrical properties are contained in electric power lines. Also, the advantage of overhead in …
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PROFITABILITY OF SMALL HYDROPOWER PLANT INVESTMENT
This paper analyzes the cost-effectiveness of building a small hydropower. The term small hydropower is considered to be all …
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Power transformer sound pressure level spectra versus electrical current spectra: Experimental findings
All high-voltage installations are subject to a series of legislation and regulations to limit the permitted noise levels. Considering …
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Power transformer differential protection types
This final paper describes the differential protection of power transformers and its application in the transformer protection system. …
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Power Losses Analysis of a Three-phase Quasi-Z- Source Inverter
This paper presents the power losses analysis of a three-phase quasi-Z-source inverter. The analysis is based on experimental …
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Photovoltaic Power Profile Emulation – A Software for Emulation of Photovoltaic Panels
The Photovoltaic Power Profile Emulation (PPPE) software was tested in this thesis. PPPE is software that enables the emulation of …
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Photovoltaic Panel Power Optimization Using Advanced Maximum Power Point Tracking Methods In A System With DC-DC Boost Converter
In this paper, the maximum power point tracking (MPPT) of a photovoltaic module in a system with a boost DC-DC converter and a constant …
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Optimized Isolated Operation of a WECS-Powered Microgrid with a Battery-Assisted qZSI
This paper presents a battery-assisted quasi-Z source inverter (qZSI) powered by a wind energy conversion system (WECS) with a …
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OPTIMIZATION OF DISTRIBUTION NETWORK TOPOLOGY USING THE DIGSILENT POWERFACTORY SOFTWARE PACKAGE
One of the most important parts in the electric power system is the distribution system as it connects transmission networks with their …
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Optimization of a Hedge-Algebra-Based Speed Controller in a Stand-Alone WECS
This paper deals with a variable-speed wind energy conversion system (WECS), which is designed for dc load supply and battery charging …
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Optimal voltage regulation in the distribution network using Digsilent Powerfactory
The aim of this work is to explain the optimal voltage regulation in the distribution network through the theoretical and practical …
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Optimal scheduling of power transformers preventive maintenance with Bayesian statistical learning and influence diagrams
Transformer preventive maintenance scheduling—as an integral part of the power utility company’s asset–management process—if optimized …
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Optimal Reconfiguration of Distribution Networks Using Hybrid Heuristic-Genetic Algorithm
This paper describes the algorithm for optimal distribution network reconfiguration using the combination of a heuristic approach and …
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Optimal Reconfiguration of Distribution Networks Using Hybrid Heuristic-Genetic Algorithm
Optimal Power Flow Control in a Stand-Alone PV System With a Battery-Assisted Quasi-Z-Source Inverter
This paper presents a photovoltaic (PV) power system with a battery storage unit and the quasi-Z-source inverter (qZSI). This inverter …
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Optimal Distribution Network Expansion Planning
The distribution network is part of a constantly evolving system. The increase in consumption and connection of new consumers requires …
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Optimal Control of a Standalone Wind-Solar Battery Power System with a Quasi-Z-Source Inverter
This paper presents a battery-assisted quasi- Zsource inverter (qZSI) powered by a wind-solar hybrid generation system for autonomous …
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On the use of Compound and Extracted Models in Thermal Dosimetry Assessment
The paper deals with thermal analysis of realistic models of the human eye and brain using the finite element method. The research …
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Non-sinusoidal voltage generator controlled by space vector PWM
The voltage source generating voltages using separate magnitude and phase angle control of different harmonics has been presented in …
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Model for optimal transition towards a fully electric public transportation system
In this paper, a comprehensive optimization model for decision support on public transportation system electrification is given. The …
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Model for optimal transition towards a fully electric public transportation system
Maximization of Distribution Network Hosting Capacity through Optimal Grid Reconfiguration and Distributed Generation Capacity Allocation/Control
High penetration of small-scale distributed energy sources into the distribution network increase negative impacts related to power …
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MAXIMIZATION OF DISTRIBUTION NETWORK HOSTING CAPACITY
A large number of potential power plants planned for connection to the distribution network require significant strengthening and …
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MAXIMIZATION OF DISTRIBUTION NETWORK HOSTING CAPACITY
Load Voltage Control in Photovoltaic Systems with Boost And Buck-Boost DC-DC Converters
This thesis deals with the regulation of the voltage of a load supplied from a photovoltaic panel using two different DC converters, a …
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LMA observations of upward lightning flashes at the Säntis Tower initiated by nearby lightning activity
We present in this paper lightning current measurements, LMA (Lightning Mapping Array) data and fast antenna electric fields associated …
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Kilogram-Scale Crystallogenesis of Halide Perovskites for Gamma-Rays Dose Rate Measurements
Gamma-rays (𝜸-rays), wherever present, e.g., in medicine, nuclear environment, or homeland security, due to their strong impact on …
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Influence of Electrical Yield on Temperature Drop of the Photovoltaic Panel: Numerical and Experimental Findings
This manuscript deals in confirmation of drop in photovoltaic panel temperature under load. Two panels are compared, one with the load …
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INFLUENCE OF CONNECTION OF SMALL HYDROPOWER PLANTS TO THE DISTRIBUTION NETWORK
In this thesis, small hydropower plants are described as a plant in which the potential energy of water is converted into the kinetic …
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Improving time integration scheme for fet analysis of power system angle stability
This paper presents improved algorithm for numerical analysis of power system angle stability achieved by improvement of the time …
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Hedge-Algebra Speed Controller – Experimental Implementation in a Sensorless Stand-Alone WECS
This paper considers a stand-alone wind energy conversion system (WECS) designed for dc load supply and battery charging. An indirect …
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Grounding Resistance of a Hemispheric Electrode Located on the Top of a Finite-Height, Cone-Shaped Mountain
In this letter, we present an analytical solution for the resistance of a hemispheric grounding electrode located on the top of a …
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Gaussian process regression modeling of wind turbines lightning incidence with LLS information
This paper presents a machine learning (ML) approach to wind turbine (WT) lightning incidence analysis in complex terrain, based on the …
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Flicker Spreading In a Transmission Networks
This paper reports the flicker spreading in the transmission network. Chapter 1 presents introduction containing brief background and …
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Ensemble learning with time-series clustering for aggregated short-term load forecasting
Load forecasting, as one of the important research areas of the smart grids, spans a wide range of methods, from traditional …
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Ensemble Learning Approach to Power System Transient Stability Assessment
Power system transient stability assessment (TSA) can be represented as a machine learning (ML) binary classification problem. Network …
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Computation of per-unit-length internal impedance of a multilayer cylindrical conductor with possible dielectric layers
In this manuscript, a novel method for computation of per-unit-length internal impedance of a cylindrical multilayer conductor with …
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Computation of electric and magnetic field distribution inside a multilayer cylindrical conductor
In this paper, a numerical algorithm for computation of electric and magnetic fields inside a multilayer cylindrical structure with an …
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Compact medium voltage switchgears in distribution substations
The final paper describes compact medium voltage switchgear blocks, their classification, design and configuration in a way that …
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Closed-Form Spectral-Domain Green's Functions for Infinitesimal Current Source in Multilayer Soil
This article deals with an infinitesimal current source (ICS) in a multilayer conducting medium that consists of air and multilayer …
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CALCULATION OF THE ANNUAL PRODUCTION OF A LARGE PHOTOVOLTAIC POWER PLANT AND THE INFLUENCE OF THE MODULE TILT ANGLE
In this paper, theoretical bases on the Sun, its motion and solar radiation are given. The procedure of analytical calculation of solar …
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Calculation of Semiconductor Power Losses of a Three-phase Quasi-Z-Source Inverter
This paper presents two novel algorithms for calculation of semiconductor losses of a three phase quasi-Z-source inverter (qZSI). The …
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CALCULATION OF OPTIMAL INSTALLED POWER FOR SMALL ROOFTOP PHOTOVOLTAIC POWER PLANT
The task of this final paper is to conduct a cost-effectiveness analysis of the construction of a solar power plant on a selected …
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Bayesian optimization of external lightning protection system of HV substations
This paper presents a method for optimizing the geometry of lightning receptors of the external lightning protection system (LPS) of …
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Assessment of Absorbed Power Density (Sab) at the Surface of Flat Lossy Medium in GHz Frequency Range : A case of Hertz dipole
The paper deals with an analytical assessment of the absorbed power density (S ab ) due to radiation of Hertz dipole above a lossy …
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Application of machine learning in electric load forecast
The forecast of the daily load diagram is an integral part of the planning and management of the power system. The system operator …
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Analysis of the apparent relay impedance of the distance protection using the Argand diagram
Remote protection is the basic protection of high-voltage transmission networks, which are mostly complex and looped and fed from …
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An electrical model for steady–state analysis of a multi-energy system
In order to decarbonize the energy sector, the share of installed power plants based on renewable energy sources is increasing, as well …
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Advance testing of distance protection relay devices with RelaySimTest software from OMICRON
Remote protection is the basis of network protection in transmission systems, as well as in interconnected distribution networks. Its …
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A Meshfree Method versus Analytical Approach to the Solution of the Current Diffusion Equation
The paper deals with the comparison of different approaches for the solution of the Current Diffusion Equation (CDE) which governs …
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A Laboratory Setup for Testing Frequency Estimation Algorithms Implemented on Real-Time Target
In this paper a low-budget single-phase voltagewaveform simulator based on the NI PCI-6071E DAQ card anddesktop PC with real-time Phar …
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WIND POWER PLANT INTERNAL CABLE NETWORK ANALYSIS
The introductory part of this work describes the basic principles of wind energy conversion as well as electricity production from wind …
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Wide & Deep Machine Learning Model for Transformer Health Analysis
Transformer health index (HI) is a powerful tool for quantifying the overall health of a power transformer, due to the fact that it …
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Transient impedance of the horizontal grounding electrode: Sensitivity analysis of the direct time domain analytical solution
The paper deals with the statistical analysis of the impact various parameters (electrode length, soil conductivity and permittivity) …
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Transient analysis of linearly coupled circuits by finite element technique
In this thesis, the transient analysis of linearly coupled circuits using the finite element method is processed and the methods used …
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Transformer differential protection setting with DIGSI 5 software package
The paper presents the method of working with the DIGSI 5 software package, with the use of a numerical relay device type 7UT85 from …
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Tower and Path-Dependent Voltage Effects on the Measurement of Grounding Impedance for Lightning Studies
We present an analysis aimed at evaluating the effect of the presence of the tower on the measurement of the grounding impedance. The …
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The Influence of Conductive Passive Parts on the Magnetic Flux Density Produced by Overhead Power Lines
There has been apprehension about the possible adverse health effects resulting from exposure to power frequency magnetic field, …
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Sun active tracking system model
The main objective of this document was to realize the system a practical model of the system for active monitoring the position of …
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Stochastic-Deterministic Boundary Integral Method for Transcranial Electric Stimulation: A Cylindrical Head Representation
In this paper the boundary integral method (BIM) is applied to modelling of the transcranial electric stimulation which is a novel …
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Stochastic modelling of nanofluids using the fast Boundary-Domain Integral Method
In this paper, we couple a numerical method aimed at simulation of flow and heat transfer of nanofluids with stochastic modelling of …
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Stochastic Boundary-Domain Integral Method for heat transport simulations
In this paper we couple a numerical method aimed at simulation of flow and heat transfer of nanofluids with stochastic modelling of …
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Stochastic analysis of nanofluid simulations
In this paper we couple a computational fluid dynamics simulation of flow and heat transfer of nanofluids with stochastic modelling of …
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Steady state analysis and modeling of the gas metering and pressure reduction station using the electrical analogy
The existing interdependencies between electric power and natural gas networks are getting stronger with the increased penetration of …
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Steady state analysis and modeling of the gas compressor station using the electrical analogy
Electric power and natural gas networks are coupled through several types of network facilities. These interdependencies are getting …
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Stand-alone Operation of a Three-Phase Quasi-Z- Source Inverter with Load Voltage Control
The paper examines the static and dynamic performance of a three-phase quasi-Z-type inverter system without grid connection with …
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Small hydro power plant energy production calculation
This paper begins by generally describing hydro power plants and their parts, as well as mentioning the biggest hydro power plants in …
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Short circuit fault analysis in PSS/E
This thesis examines the characteristics and possibilities of using the computer program PSS/E for teaching and research purposes, with …
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Selection of parameters and application of surge arresters in distribution networks
The topic of this thesis is Parameter selection and application of surge arresters in the distribution network. To begin the work, a …
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Review of Deterministic-Stochastic Procedures in Electromagnetic-Thermal Dosimetry of The Realistic Human Head Model Exposed to Non-Ionizing Radiation
Computational models used in electromagnetic-thermal dosimetry suffer from drawbacks pertaining to the uncertainties in input data set …
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Reversible Hydroelectric Power Plant Blaca in the River Cetina
The Blaca reversible hydroelectric power plant (RHE) aims to increase the utilization of the available hydropower potential of the …
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Report on the heat resistance of the bedding material of 110kV cable from mine Zapuzane
Design basis for dimensioning HV cable bedding. Material samples from the Zapuzana quarry
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Reduction of a Cone-Shaped Terrain Grounding Resistance by Remote Grounding
Tall structures such as wind turbines and mobile phone base stations are often installed in remote and hilly locations to gain more …
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Recovery of a War-Damaged Painting “Our Lady of the Rosary“ from Vrlika
The restoration of the cultural heritage with dramatic losses – whether they are the results of a natural processes or a human action – …
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Protective reyals in substation 110 / x kV
The topic of this final thesis was the description of relay protection. Through the work, we have shown how relay protection, with its …
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Programmable DC Power Supply Magna-Power SL50-30/UI as a Photovoltaic Module Emulator
This paper is based in its first part on basic information about solar energy and photovoltaic systems. The general features of PV …
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Polarimetric radar characteristics of lightning initiation and propagating channels
In this paper we present an analysis of a large dataset of lightning and polarimetric weather radar data collected in the course of a …
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Optimization of Electricity Production in a Grid-Tied Solar Power System with a Three-Phase Quasi-Z-Source Inverter
Solar energy can be harnessed in all areas of the world and directly converted to electricity by means of photovoltaic (PV) systems. …
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OPTIMAL VOLTAGE REGULATION IN DISTRIBUTION NETWORKS
The introductory section explains the reasons for the need for voltage regulation in the distribution network so that all consumers …
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On the Influence of an Elevated Terrain on the Grounding Resistance of a Vertical Rod
In this paper, we analyze the grounding resistance of a vertical grounding rod located in an elevated terrain. Tall structures such as …
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On the Incident Power Density Calculation in GHz Frequency Range - A case of Hertz dipole
The paper deals with a simple analytical approach to determine the input power density (IPD) due to radiation of Hertz dipole in the …
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On the Computation of Singular Integrals over Triangular Surfaces in R3
Various integral equation formulations and the related numerical solutions either via Boundary Element Method (BEM) or Method of …
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On Some Multiphysics Models for Electromagnetic- Thermal-Hydrodynamics (ETHD) Analysis
A review of computational models coupling some multiple physical phenomena is presented in this paper. Thus, electromagnetic-thermal …
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Numerical Model for Power System Transient Stability Analysis
Power system (PS) stability analysis is one of the fundamental criteria in system operation analysis. The issue of power system (PS) …
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Non-iterative algorithm for computation of the prospective permissible touch voltage according to EN 50522
The prospective permissible touch voltage computation algorithm can be found in the international standards and technical …
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Non-iterative algorithm for computation of the prospective permissible touch voltage
The permissible supply voltage for touch depending on the fault duration according to the HRN EN 50522 standard was calculated …
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Multiple-Station Measurements of a Return-Stroke Electric Field From Rocket-Triggered Lightning at Distances of 68–126 km
Far-field measurements of lightning-produced electromagnetic fields are of high importance for lightning location systems. Data from …
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Multi-variable Analysis of the Transient Impedance of the Horizontal Grounding Electrode
The paper deals with the calculation of transient impedance of the horizontal grounding electrode for a various parameters. Generalized …
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Modeling wind power investments, policies and social benefits for deregulated electricity market – A review
This paper reviews the different aspects of modeling wind energy systems namely investment, policies, performance, and social benefits …
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Meteorological Aspects of Self‐Initiated Upward Lightning at the Säntis Tower (Switzerland)
Interest in exploring the meteorological conditions favoring upward lightning from tall man‐made structures has grown in recent years, …
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Maximizing distribution network hosting capacity through optimal network reconfiguration
This paper presents a method for maximization of distribution network hosting capacity considering the possibility of network …
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LMA Observation of Upward Bipolar Lightning Flash at the Säntis Tower
We present in this paper lightning current measurements and LMA (Lightning Mapping Array) data associated with an upward bipolar flash …
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Light-Emitting Electrochemical Cells of Single Crystal Hybrid Halide Perovskite with Vertically Aligned Carbon Nanotubes Contacts
Based on the reported ion migration under an electric field in hybrid lead halide perovskites we have developed a bright, …
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Isolated vs. Interconnected Wind Turbine Grounding Systems: Effect on the Harmonic Grounding Impedance, Ground Potential Rise and Step Voltage
Wind turbines are very vulnerable to lightning strikes due to their height, sharp edges and remote locations often with high soil …
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Influence of Electrical Yield on Temperature Drop of the Photovoltaic Panel: Numerical and Experimental Findings
This paper deals in confirmation of drop in photovoltaic panel temperature under load. Two panels are compared, one with the load and …
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Improving time integration scheme for FEM analysis of MTL problems
This paper presents improved algorithm for electromagnetic transient calculations on multiconductor transmission line (MTL) achieved by …
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Implementation of Interpolated FFT Algorithm for Synchrophasors Determination
Within the standard IEEE C37.118 applications and proposed hardware structure of a phasor measurement unit (PMU) are described. This …
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Impact of Stray Load and Iron Losses on Vector Control of Small Induction Generators
This paper presents the analysis of detuning induced by the stray load and iron losses in vector-controlled self-excited induction …
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Hedge-Algebra-Based Phase-Locked Loop for Distorted Utility Conditions
This paper presents the first application of the hedge algebra theory in the field of grid synchronization. For this purpose, an …
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Frequency Domain Grounding Grid Analysis Based on the Finite Element Technique
In this paper a concise outline of a frequency domain grounding grid analysis based on the finite element technique is given. Weighted …
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Flicker spreading in a transmission network
Chapter 1 presents introduction containing brief background and key concepts, followed by description of the typical flicker origins in …
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Fixed‐Duty‐Cycle Control of a Quasi‐Z‐Source Inverter in a Battery‐Assisted Photovoltaic System
This paper presents two simple control strategies for a battery-assisted photovoltaic (PV) system with the threephase quasi-Z-source …
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Field distribution in a cylindrical multilayer conductor
The task of the thesis was to develop a theoretical basis and create a computer program for calculating the distribution of electric …
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Experimental System with Photovoltaic Panel Emulator and DC-DC Buck Converter for Constant Voltage Supply of a Resistive Load
In this paper, the operation of a system for stabilized power supply of an active load from a photovoltaic panel via a step-down DC …
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Experimental analysis on free convection effect using two different thermal performance enhancers in absorber tube of a forced circulation flat plate solar water heater
The objective of this experimental work is to compare the convection effect of the flat plate solar water heater (FPSWH), both with and …
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Enhancing the optical and thermal efficiency of a parabolic trough collector – A review
Among the various available renewable energy sources such as wind, geothermal, tidal, bio mass, etc., harnessing of solar energy has …
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Energy Efficient Control of a Stand-Alone Wind Energy Conversion System with AC Current Harmonics Compensation
This paper presents a new energy-efficient control strategy for a variable-speed wind energy conversion system (WECS). The considered …
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Electromagnetic Dosimetry Based on EFIE Formulation and RWG Basis Function
The paper deals with the electromagnetic dosimetry model for the lossy homogeneous biological body. The model is based on the use of …
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Electric Machine Vibration Measurements Based on Fiber Optic Sensor Technology - Preliminary Results
In hydro power plants (HPP) vibration monitoring is usually provided for various parts of hydro generating equipment including relative …
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Effective Length Calculation of the Horizontal Buried Grounding Electrode Using Theory of Multi-Conductor Transmission Line
The effective length of the grounding rod, as well as the effective surface area of ​​the grounding rod, is a concept related to the …
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Design of a Three-Phase Voltage Calibrator
This paper describes the design of a three-phase calibrator, i.e. a voltage signal generator. The calibrator core is an IGBT converter …
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Day-ahead scheduling and real-time Economic MPC of CHP unit in Microgrid with Smart buildings
This paper presents a model for day-ahead scheduling of the CHP heat and electric energy production for a residential Microgrid taking …
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Day-ahead scheduling and real-time Economic MPC of CHP unit in Microgrid with Smart buildings
Coupling of the Fast Boundary-Domain Integral Method with the Stochastic Collocation Method for Fluid Flow Simulations
In this paper we present the development of a Fast Boundary-Domain Integral Method for the solution of fluid flow and heat transfer …
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Compensation of Stray Load and Iron Losses in Small Vector-Controlled Induction Generators
Standard vector controllers for induction machines (IMs) are based on the conventional IM model. Consequently, they are unaware of the …
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Calculation of the Grounding Resistance of Structures Located on Elevated Terrain
We present an analysis of the response of a grounding electrode located on the top of a mountain. Specifically, we derive an analytical …
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Calculation and optimization of topology of a large photovoltaic power plant
In the first part of this master thesis basic parts of photovoltaic power plant are described (photovoltaic modules, substations, …
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Boundary Integral Methods in Bioelectromagnetics and Biomedical Applications of Electromagnetic Fields
The paper reviews some integral methods used in static, low frequency (LF), and high frequency (HF) dosimetry, respectively, and …
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Bayesian optimisation with Gaussian processes of the external LPS of switchyards
This paper will present a method for optimizing the geometry of the lightning protection system (LPS) of an outdoor high-voltage …
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AUTOMATIC REGULATION OF INTENSITY AND CORRELATED COLOR TEMPERATURE (CCT) OF LIGHT
This work presents smart lighting and describes its parts and the benefits of installing it. After that, a light-technical calculation …
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Application of machine learning in transformer health analysis
This paper presents the application of machine learning for the purpose of transformer health analysis. The state of the energy …
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Application of machine learning in the transformer health index analysis
The paper will present the application of several different machine learning algorithms in the analysis of the health index of power …
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Analysis of the lightning production of convective cells
This paper presents an analysis of the lightning production of convective cells. The cells were detected by the MeteoSwiss …
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Analysis of low-voltage electrical network of substation 20(10)/0,4 kV Marusinac 3
Low-voltage networks are networks with a nominal voltage lower than 1 kV and without exception belong to distribution networks. …
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Analysis of lightning overvoltages on transmission lines using the EMTP-ATP program
In this paper, several models of transmission poles, grounding devices and insulators are explained, and their characteristic data are …
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Analysis of conductor clashing experiments
Conductor clashing is one of the possible mechanisms how an overhead power line can cause wildfires. During the contact oftwo bare …
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Analysis of a Current Induced along the Horizontal Grounding Electrode due to Short-circuit Generator Current
The paper deals with the analysis of a short-circuit generator current when the generator is grounded via horizontal grounding …
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Analysis and measurement of current transformer characteristics
This paper discusses the basic technical characteristics of a current transformer for measurement and protection. The effects of …
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An analysis of power system transient angle stability using finite element technique
In a case of numerical analysis of slow electromechanical oscillations in a large power system, Electromagnetic Transients Program …
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ADVANCED ENERGY METER WITH LOAD CONTROL BASED ON ESP8266 MODULE AND MQTT PROTOCOL
At the EU and Croatian level, old generation energy meters are being replaced with the new more advanced smart meters allowing two-way …
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A Design of PWM Controlled Calibrator of Non-Sinusoidal Voltage Waveforms
Power quality conditions in electrical power networks have drastically changed in recent years. A number of electrical devices and …
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Vertically Aligned Carbon Nanotubes as Electrodes in Perovskite Single Crystal Light Emitting Electrochemical Cells
We demonstrate that single crystals of methylammonium lead bromide (MAPbBr3) could be grown directly on vertically aligned carbon …
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Vertically aligned carbon nanotube-perovskite light emitting electrochemical cells
We demonstrate that single crystals of methylammonium lead bromide (MAPbBr3) could be grown directly on vertically aligned carbon …
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Using Genetic Algorithms in Designing Substation Lightning Shielding
This paper introduces application of genetic algorithm (GA) in designing air-termination system of the high-voltage open-air substation …
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Tubular busbars in electrical power substations
This final paper describes busbars, their role and application. Their operation under normal operating conditions and under short …
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Transient Impedance of Interconnected Wind Turbine Grounding Systems
Wind turbines are very vulnerable to lightning because of their height, sharp edges and remote locations often with low soil …
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Transient Calculation of the Electric Field above a Lossy Ground Generated by Dipole Antenna - Direct time domain analysis
The paper deals with the direct time domain calculation of a transient electric field in the upper half-space generated by a dipole …
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Time domain generalized telegrapher’s equations for the electromagnetic field coupling to finite-length wires buried in a lossy half-space
The paper deals with a derivation of a time domain variant of the generalized telegrapher’s equations for transient electromagnetic …
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Three-Phase Programmable Sinusoidal Voltage Calibrator
Laboratory setup for generation of sinusoidal voltage of programmable amplitude, phase and frequency is presented in the paper. Core of …
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Three Phase Quasi-Z-Source Inverter Controlled by MicroLabBox System
The paper presents a control system for a quasi-Z-type inverter connected to an AC power grid. The control system was implemented with …
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Thermal performance of solar water heater using velocity enhancer
This paper theoretically analyses the thermal performance of extended surface of absorber tubing in a flat plate solar collector by …
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Techno-economic analysis of various 110 kV submarine power cables
In this final paper, various designs of submarine cables, single-core and three-core, were analyzed and compared from a technical and …
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Surface Equivalence Principle and Surface Integral Equation (SIE) Revisited for Bioelectromagnetics Application
The paper revisits the use of a surface equivalence theorem in deriving the surface integral equation (SIE) based formulation for a …
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Stray Load and Iron Losses in Small Induction Machines under Variable Operating Frequency and Flux: A Simple Estimation Method
In this paper, an engineering approach to estimation of the fundamental stray load and iron losses in small induction machines (IMs) is …
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Stohastic modelling of nanofluid heat transfer
In this paper we couple a numerical method aimed at simulation of flow and heat transfer of nanofluids with stochastic modelling of …
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Stochastic Thermal Dosimetry for the Three Compartment Head Model
This paper presents a stochastic approach to the assessment of the temperature elevation in human head tissues due to the exposure to …
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Stochastic Sensitivity Analysis for Dosimetry of Head Tissues for the Three Compartment Head Model
This paper presents a stochastic framework for the assessment of stochastic sensitivity of electric parameters in the three-compartment …
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Stochastic Collocation Applications in Computational Electromagnetics
The paper reviews the application of deterministic-stochastic models in some areas of computational electromagnetics. Namely, in …
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Solar tracking system using photo-resistor and stepper motor
This paper describes the use of Arduino microcontrollers, stepper motors and photoresistors, which are connected with the help of …
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Software development for unbalanced load flow calculation
The theoretical part of this final paper describes distribution networks, their characteristics and specificities. Special emphasis is …
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SMART METER AND ENERGY MANAGEMENT WITH ESP8266 MODULE AND MQTT PROTOCOL
At the level of the EU and Croatia, the replacement of old meters with new advanced meters that enable two-way communication between …
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Small-Size Induction Machine Equivalent Circuit Including Variable Stray Load and Iron Losses
The paper presents the equivalent circuit of an induction machine (IM) model which includes fundamental stray load and iron losses. The …
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Simulation Model of a DC-DC Buck Converter without Galvanic Isolation and with Included Parasitic Resistances of LC Components
In this final thesis, the second chapter is dedicated to the design and characteristics of a step-down DC-DC converter without galvanic …
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Simulation Model of a DC-DC Boost Converter without Galvanic Isolation and with Included Parasitic Resistances of LC Components
This paper explains how parasitic resistances of the choke and capacitor affect the operation of a DC-to-DC boost converter. The second …
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Real-Time Loss Calculation of a Hysteresis Controlled Power Converter
This paper presents an algorithm for real-time calculation of losses of a hysteresis controlled power converter. The converter under …
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Python in Lightning Detection Network Data Analysis
This paper describes usage of several third-party Python (programming language) libraries, which could be seen as very useful for easy …
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PV module efficiency measurements under various temperature regimes
A solar cell is an electronic device designed to convert solar energy into electricity and represents the technology of the future. …
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Propagation of current waves along transmission lines with stochastic geometry in a rectangular resonator
The propagation of high-frequency current waves through a transmission line with a stochastic geometry in a rectangular cavity was …
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Probability distributions of transient currents induced along thin wire buried in a lossy material
This contribution aims to estimate the statistics and probability distribution of the current induced at the center of an electrode …
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Power Flow Analysis Using the PSS/E Software
In this paper, the capabilities of the software package PSS/E 34 version of Xplore were studied, with an emphasis on power flows. It is …
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Partial Discharge Diagnosis of Medium Voltage Power Cables
In this paper, the basic principles of partial discharges (PD) are described, including off- line and on-line methods and the basic …
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Optimising the transformer substation topology in order to minimise annual energy losses
The transformer losses can usually be classified into two basic categories: losses in transformer core (voltage-dependent losses) and …
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Optimal Scheduling of Distributed Generation and Flexible Storage in Smart Buildings
In the past, the main reason for the large scale integration of PV plants at consumer level was a potential profit guaranteed through …
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OPTIMAL RECONFIGURATION OF DISTRIBUTION NETWORKS USING MIXED INTEGER SECOND ORDER CONE PROGRAMMING
Although most MV 10(20) kV distribution networks (DM) are in operation with a radial structure, in most networks there are additional …
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Optimal Distribution Network Reconfiguration through Integration of Cycle-Break and Genetic Algorithms
This paper presents novel cycle-break (spanning tree generation) algorithms which can be used to find the optimal distribution network …
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On the use of Conformal Models and Methods in Dosimetry for Non- Uniform Field Exposure
Numerical artifacts affect the reliability of computational dosimetry of human exposure to low- frequency electromagnetic fields. In …
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Numerical Comparison of Compound and Extracted Eye Models for High Frequency Dosimetry
This paper compares the numerical results for the induced electric field, the specific absorption rate (SAR), and the corresponding …
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Numerical analysis of a three-compartment head model subjected to variation of input parameters
A stochastic framework for the assessment of the induced electric field in the three- compartment model of human head subjected to …
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Novel Dynamic Model of a Photovoltaic Module
This paper presents a novel dynamic model of a photovoltaic (PV) module. The two-diode model of a PV module is upgraded with the …
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Multi-market Scheduling of Battery Storages Within Renewable Portfolios
This paper presents a multi-market scheduling model for a battery storage within a mixed Wind/PV portfolio. Markets considered in the …
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Microgrid analyis with high share of electric vehicles and renewable energy sources
This paper describes microgrids with a large proportion of renewable sources, and electric vehicles as consumers and sources of …
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Maximization of Expected Wind Power Plant Profit Through Optimal Offers on the Day-Ahead Market
In the electricity markets every deviation between the contracted power production and the real energy supplied is usually penalized or …
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Lorentz Force from a Current-Carrying Wire on a Charge in Motion under the Assumption of Neutrality in the Symmetrical Frame of Reference
It is commonly assumed that a wire conducting an electric current is neutralin the laboratory frame of reference (the rest frame of the …
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Introducing novel risk-based indicator for determining transmission line tower's backflashover performance
Transmission line (TL) backflashover (BF) performance has been traditionally ascertained using a single number, the so-called …
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Integral Equation Formulations and Related Numerical Solution Methods in Some Biomedical Applications of Electromagnetic Fields
The paper reviews certain integral equation approaches and related numerical methods used in studies of biomedical applications of …
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Improved Algorithm for FEM Analysis of MTL Problems
This paper deals with improvement of time integration scheme for transient finite element method (FEM) analysis. FEM is applied to the …
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Hybrid FEM/BEM for Human Head Exposed to High Frequency Electromagnetic Radiation
In this paper the hybrid finite element/boundary element method (FEM/BEM) is used to analyze the human head exposed to plane wave …
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Highly accurate computation of Carson formulas based on exponential approximation
In this paper, analytical expressions for a highly accurate computation of Carson formulas are developed. Highly accurate analytical …
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Guest Editorial Preface : Special Issue on Enabling Infrastructures and Algorithms for e- Health Applications
Technology advancements in high-capacity communications as well as advancements in computer architectures, have enabled vast …
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Frequency Domain and Time Domain Analysis of the Transient Field Radiated by GPR Antenna: A Review of Deterministic Modeling Based on Integral Equation Approach
The paper reviews the frequency domain and time domain analysis of transient electric field generated by the ground penetrating radar …
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FDTD Modeling of the Landmine Detection via Ground Penetrating Radar Response
The paper deals with the simulation of the Ground Penetrating Radar (GPR) response to the landmines buried in a realistically simulated …
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Enhanced electrical performance in a solar photovoltaic module using V-trough concentrators
The electrical performance of a novel solar photovoltaic collector fabricated by lamination of silicon PV cells onto a copper metal …
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Electromagnetic Dosimetry Based on EFIE Formulation and RWG Basis Function
The paper deals with the electromagnetic dosimetry model for the lossy homogeneous biological body. The model is based on the use of …
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Electric Field Transmitted into a Lossy Medium Radiated by a GPR Antenna – Comparison of Different Approaches
The paper deals with the calculation of the electric field radiated by a GPR antenna and transmitted into a lossy medium by using …
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Dynamic Model of a Self-Excited Induction Generator With Fundamental Stray Load And Iron Losses
This paper considers a dynamic model of a self- excited induction generator (SEIG) that takes into account the fundamental stray load …
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Distribution system reliability analysis
In the first chapter, an overview of the structure of the distribution system, its components, and the role of the distribution system …
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Direct time domain analytical solution for the transient impedance of the horizontal grounding electrode
The paper deals with a derivation of simple and efficient analytical solution for the calculation of transient impedance of the …
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Development of advanced numerical models for power system angle stability analysis
In this doctoral thesis, an advanced numerical model for the analysis of angular stability in the power system (PS), which is based on …
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Detuning Induced by Stray Load and Iron Losses in Small Vector-Controlled Induction Motors
Detuning in vector-controlled induction motor (IM) drives is characterized by a misalignment between the actual and reference flux …
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Design of firewood cutting devices
The paper describes the development and construction of a firewood cutting device. The introductory part of the paper presents the type …
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Design Of a Three-Phase Voltage Calibrator
This paper describes the design of a three-phase calibrator, i.e. generator of voltage and current signals. The core of the calibrator …
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Computation of Carson formulas using piecewise approximation of kernel function
Novel approach for high-accurate computation of Carson formulas is presented. Carson formulas are used for computation of per-unit …
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Communication node noise level spectral measurements
This final paper describes the spectral measurement of noise in a communication node. The physical foundations of noise as a phenomenon …
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CAN bus signal measurements and graphical representation
This paper describes the basic elements of the electrical installation of a passenger car, with special emphasis on signals on the CAN …
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Calculation of the Transient Electric Field Transmitted in a Lossy Medium Radiated by an Equivalent GPR Dipole Antenna
The paper deals with the characterization of electric field radiated by a GPR antenna and transmitted into a lossy medium. Realistic …
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Calculation of short-circuit currents according to international standard IEC 60909
This paper presents methods for calculating short-circuit currents according to the international standard IEC 60909. Short-circuit …
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Calculation of Losses of a Three-Phase Converter Based on Data-Sheet Data of Commercial IGBT Modules
This final paper deals with the calculation of losses in a three-phase converter based on catalog data of commercial IGBT modules. The …
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Auxiliary generator winding resistance measurement
This paper describes the techniques for testing the winding resistance of a synchronous generator with auxiliary Diesel power supply. …
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Artificial neural networks in analysis of health index of power transformers
Due to the high cost of replacing a power transformer, more and more attention is being paid to its monitoring and preventive …
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Application of genetic algorithm in designing high-voltage open-air substation lightning protection system
This paper introduces application of genetic algorithm (GA) in designing air-termination system of the high-voltage (HV) open-air …
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Analysis of Transformer Health Index Using Bayesian Statistical Models
Health index (HI) is a very useful tool for rep- resenting the overall health of a complex asset, such as the power transformer, due to …
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Analysis of the transient impedance of the horizontal grounding electrode using stochastic collocation technique
The paper deals with the analysis of stochastic variables that can have significant influence on the transient impedance of the …
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Analysis of Attenuation Effect of Grid-Like Spatial Shields Used in Lightning Protection of Buildings
A frequency-domain-based electromagnetic model of the lightning protection system of buildings is presented in this paper. Numerical …
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An experimental field study of the grounding system response of tall wind turbines to impulse surges
In this work, an experimental investigation of the grounding system behavior of tall wind turbines in both time and frequency domains …
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Accurate computation of internal impedance of two- layer cylindrical conductors for arguments of arbitrary magnitude
Formula for per-unit-length internal impedance of two-layer cylindrical conductors is derived and then upgraded from the standpoint of …
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A note on the use of analytical and domain discretisation methods for the analysis of some phenomena in engineering physics
The paper reviews some applications of the well-established analytical and domain discretisation methods (finite difference method-FDM, …
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A note on stochastic collocation applied in dosimetry, magneto-hydrodynamics and ground penetrating radar simulations
The paper presents areas such as numerical dosimetry, magneto-hydrodynamics (MHD) and ground penetrating radar (GPR) simulations, in …
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A Finite Element Versus Analytical Approach to the Solution of the Current Diffusion Equation in Tokamaks
This paper deals with two efficient approaches for solving the current diffusion equation (CDE), which governs current diffusion …
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A Circular Loop Time Constant Standard for the Determination of Phase Angle Errors of Current Shunts
The paper describes a simple time constant standard, developed for the phase angle measurement of the precision current shunts. Its …
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A circular loop time constant standard
A time constant standard, developed for the phase angle measurement of precision current shunts is developed and described, and its …
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400 kV, 110 kV and 10 kV overhead power line EM radiation measurement
This final paper deals with the topic of electromagnetic radiation from extremely low frequency fields, more precisely from 10 kV, 110 …
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Wind Turbine-Driven Self-Excited Induction Generator: A Novel Dynamic Model Including Stray Load and Iron Losses
In this paper, a novel dynamic model of a self- excited induction generator (SEIG) is presented. In the proposed model, the fundamental …
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Voltage transformers
This final paper presents in detail voltage measuring transformers, their divisions and various applications. Voltage measuring …
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Voltage stresses and standard test voltages of the electrical switchyard elements
This paper presents international and domestic regulations related to standard voltages of electrical networks, types of overvoltages …
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Valuation of contract between power supplier and electric vehicle owner
The role of EVs can range from that of passive loads with no difference compared to the traditional ones to active components highly …
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Unbalanced load of two-winding transformer
The aim of this final paper was to present the current conditions in an asymmetrically loaded two-winding transformer for typical …
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Transmission network load flow analysis using Matpower 6.0 software
The paper deals with the issue of power flow analysis in transmission networks, using the Matpower 6.0 software package, within the …
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Transformer oil dielectric strength measurements
This final paper analyzes the induction transformer, its equations, the vector diagram of an ideal and real transformer, and explains …
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Transformer insulation coordination using volt– time curve and limit–state surface formulation
This paper presents a novel method for the power transformer insulation coordination, based on the risk of failure analysis due to …
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Thermographic measurement of substation 10/0, 4 kV
This paper explains the concept of thermal imaging, a method that has recently been increasingly used in the maintenance of power …
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The impact of conductor material on the critical diameter of particle produced in overhead line conductor clashing
Conductor clashing of overhead lines, particles eruption and potentially ignition of dry biomass to the soil under or around the …
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The impact of conductor material on the critical diameter of particle produced in overhead line conductor clashing
Conductor clashing of overhead lines, particles eruption and potentially ignition of dry biomass to the soil under or around the …
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Testing of high voltage circuit breakers
This paper describes the tests of high-voltage switches and their connection with valid standards. The basic parts of the switch and …
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Temperature Increase in the Extracted and Compound Eye Models
The paper deals with the comparison of the tem- perature increase due to a high frequency exposure in two realistic human eye models. …
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Technological and economical lighting management system analysis
The subject of the thesis is a technological and economic analysis of three ways of lighting control in a hotel. In all larger catering …
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Suppression of the atmospheric overvoltages in grounding neutral conductor low-voltage grids
This study reports the issues related to over- voltages in low-voltage distribution networks characterised by high specific soil …
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Suppression of the atmospheric over-voltages in grounding neutral conductor LV grids
This study reports the issues related to over- voltages in low-voltage distribution networks characterised by high specific soil …
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Suppression of the atmospheric over-voltages in grounding neutral conductor low voltage grids
This paper reports the issues related to over- voltages in low-voltage distribution networks characterized by high specific soil …
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Stochastic-deterministic and sensitivity analysis of the transient field generated by GPR dipole antenna and transmitted into a lossy ground
The paper deals with a stochastic-deterministic modeling and sensitivity analysis of the transient field generated by a ground …
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Stochastic Thermal Dosimetry for Homogenous Human Brain Model
The stochastic thermal dosimetry for homogeneous human brain model is presented. The uncertainty of thermal parameters is propagated to …
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Stochastic Post-processing Of The Deterministic Boundary Element Modelling Of The Transient Electric Field From GPR Dipole Antenna Propagating Through Lower Half-space
The paper deals with time domain-deterministic stochastic assessment of a transient electric field generated by a ground penetrating …
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Stochastic Dosimetry for Transcranial Magnetic Stimulation Analysis
This work examines the influence of the brain tissue parameters uncertainty and the coil positioning variations within the framework of …
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Stochastic Dosimetry Applied to Transcranial Magnetic Stimulation Analysis
The paper proposes one possible approach to tackle the problem of quantification of uncertainties in computational bioelectromagnetics …
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Stepper machine as a rotational speed measuring device
This paper describes different types of stepper motors and their operating principles. Then, the disadvantages and application areas of …
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Statistical transient impedance of horizontal grounding systems: application to sensitivity analysis with ANOVA approaches
This work is devoted to the impact of random environmental constraints regarding the transient impedance of horizontal grounding wire. …
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Sensitivity Analysis of the Time Transient Currents Induced Along Thin Wires Buried in Lossy and Uncertain Environments
This contribution aims to assess the sensitivity of the time domain response of a straight thin electrode buried in a lossy half-space. …
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Selection of technical parameters for step-up transformers with on-load tap-changers
The paper presents the basis for the analysis of the optimal selection of the basic technical characteristics of a block transformer …
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Research on electrical conductivity of clay
Testing the electrical conductivity of clay from a site near Tomislavgrad for the purpose of implementing a grounding system
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Report on the heat resistance of the bedding material 110kV cable
Ispitivanje toplinskih znacajki materijala za posteljicu elektroenergetskih kabela. Uzorak uzet s lokaliteta Brdo u blizini …
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Report on the heat features of the cable bedding material.
Report on testing the thermal properties of cable bedding material from the Turjaci site
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Replacement of 110 kV cable connections in the HPP Senj
HPP Senj is a high-pressure derivation plant that uses the waters of the Lika and Gacka rivers, in such a way that it transfers the …
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Relay protection of isolated, compensated and low- resistance grounded distribution networks
This thesis consists of a theoretical background of the relay protection schemes in distribution networks that will be activated if the …
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Power transformer insulation resistance measurements
This paper explains power transformers, their application, division and function in the power system. Their principle of operation, …
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Power System Transient Stability Analysis Using Hybrid Model Based on the Finite Element Method
This paper presents a simple, but very powerful, numerical algorithm for the power system transient stability simulation. The aim of …
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Power quality meter based on FPGA and LabVIEW
This paper proposes a relatively simple program for measuring currents and voltages in electrical power system. Real-Time processing is …
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Power quality disturbance classification based on wavelet transform and support vector machine
This paper proposes a relatively simple program for measuring currents and voltages in electrical power system. Real-Time processing is …
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Parallel Operation of Frequency Converters
In order to increase the power of three-phase squirrel-cage induction motors, with a limited amount of supply voltage, in practice, the …
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Overview of progress in European medium sized tokamaks towards an integrated plasma-edge/wall solution
Integrating the plasma core performance with an edge and scrape-off layer (SOL) that leads to tolerable heat and particle loads on the …
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Optimal reconfiguration of distribution network using cycle-break/genetic algorithm
This paper describes the new algorithm for optimal distribution network (DN) reconfiguration through integration of cycle break …
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On Wind Turbine Impedance Analysis via Different Approaches
Lightning is one of the main causes of damage to wind turbines. The continuous increase in the wind turbine heights makes these …
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On the numerical computation of cylindrical conductor internal impedance for complex arguments of large magnitude
In this paper a numerical algorithm for computation of per-unit-length internal impedance of cylindrical conductors under complex …
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Numerical computation of the overhead power lines electric field intensity
Overhead power lines are sources of low-frequency electromagnetic fields, and their limit levels are prescribed in the currently valid …
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Numerical computation of the overhead power lines electric field intensity
This paper describes a 3D quasi-static electromagnetic model for calculating the electric field strength of overhead power lines. The …
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Numerical calculation of the power cables systems magnetic flux density
This paper describes a mathematical model for calculating the magnetic flux density of a cable system, which can take into account any …
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Novel indicator of transmission line towers backflashover performance
Transmission line (TL) backflashover (BF) performance is traditionally ascertained using a single number, the backflashover rate (BFR), …
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Monitoring system of high voltage circuit breakers
This paper outlines the monitoring system of the entire switchgear, while the monitoring system of high-voltage circuit breakers is …
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Mathematical modelling of an ORC cogeneration plant
The paper describes the creation of a mathematical model of a cogeneration plant based on the organic Rankine cycle (ORC). The …
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Main residential electrical installation project
In this paper, detailed guidelines are given and it is shown on a concrete example how to make the main project of home electrical …
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Main design of distribution substations 10(20)/0.4 kV
The paper describes the basic guidelines for the design of TS 10(20)/0, 4 kV, taking into account the specifics related to the design …
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Lightning flash-cells detection using machine learning algorithms
The paper presents an analysis of the possibility of applying different machine learning algorithms to the detection of thunderstorm …
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LCL Filter Design Method for Grid-Connected PWM-VSC
In recent years, several LCL filter design methods for different converter topologies have been published, many of which use analytical …
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Isolation transformers
This paper presents the basic construction and principle of operation of transformers for galvanic separation, as well as their …
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Infrared thermography measurements of the 30 kW solar power plant
The student should describe the thermodynamic principles of heat transfer and state and describe the basic laws of thermal radiation. …
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Influence of different arrangement types and number of power cables on the magnetic flux density
The development of larger urban areas and the increase in electricity consumption in them require the use of cable lines with …
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Impulse impedance of the horizontal grounding electrode : comparison of the theoretical antenna model approach and experimental analysis
The paper deals with the comparison of two methods for the calculation of the impulse impedance of the horizontal grounding electrode …
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Impact of distributed generation on distribution network conditions
Distributed production plays an increasingly important role in reducing losses in the network, reducing electricity prices, achieving …
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Experimental prediction of shaded solar cells hot-spots
We present a method for estimating overheating of a partially covered solar cell module by use of short-circuit current measurement …
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Experimental Determination of No-Load Losses in Frequency-Converter-Fed Induction Machine
In this final paper, an idling test of an asynchronous motor powered by a frequency converter was performed, with the aim of …
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Electromagnetic-Thermal Analysis for Human Exposure to High Frequency (HF) Radiation
The paper aims to review some electromagnetic-thermal dosimetry methods for the assessment of human exposure to high frequency (HF) …
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Electromagnetic modeling of the GPR response to the pipe system set in the concrete slab
The paper deals with the work of georadar and its applications. Ground-penetrating radar (GPR) is a geophysical method that uses radar …
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Electromagnetic Model of the External Lightning Protection System
This paper demonstrates how an existing transient electromagnetic model of grounding system can be employed to model the entire …
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Electrical power system simulation using PowerWorld Simulator 19 program
This thesis examines the capabilities of the PowerWorld 19 simulator in market conditions and its new capabilities compared to previous …
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Dynamic simulation model of a quasi-Z-Source inverter with parasitic resistances and saturable inductor
In this paper, an advanced simulation model of a quasi-Z-Source inverter (qZSI) is presented. The model has been built in …
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Distribution network reconfiguration using hybrid heuristic — genetic algorithm
This paper presents algorithm for optimal reconfiguration of distribution networks using hybrid heuristic genetic algorithm. …
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Distribution network protection
The quality of a certain distribution network, which is primarily measured by the reliability of electricity supply, is significantly …
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Direct time domain evaluation of the transient field transmitted into a lossy ground due to GPR antenna radiation
The paper deals with the direct time domain calculation of a transient electric field generated by a ground penetrating radar (GPR) …
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Development of software package for short-circuit analysis
This paper describes the short circuit calculation method in matrix form. In the first part of the paper, the types of short circuits …
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Deterministic-stochastic Boundary Element Modeling Of The Brain And Eye Exposed To High-frequency Radiation
The paper reviews the influence of the variability in the morphology and the tissue properties of the human brain and eye, …
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Determination of the induction motor stator flux linkage in no-load condition from measured stator voltages and currents
In this final paper, the stator flux linkage of an unloaded induction motor is determined from the measured stator voltages and …
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Definition and Computation of Carson Formulas
In this paper, a new numerical algorithm for high-accurate computation of exact Carson formulas is developed. Carson formulas are used …
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Defining technical characteristics of new step-up transformers for HPP Kraljevac
The paper deals in detail with the selection of optimal technical characteristics of new block transformers for the Kraljevac HPP that …
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Current transformers
This final paper describes current measuring transformers, their application and classification. Their operating principle is also …
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Critical diameter of particles produced in overhead line conductor clashing
Wildfires are occurring over the world and some of them were close to electrical power lines. Conductor clashing has been blamed in …
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Cost-benefit and financial risk analysis for wind power plant projects after implementation of new RES and co-generation act
The wind farm construction project is a multi-year complex project, during which all interested parties are exposed to numerous risks. …
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Cost-benefit analysis of solar power plants after implementation of new Renewable energy act
The task of this diploma thesis is to carry out an analysis of the economic profitability of building a solar power plant on a selected …
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COST Action TU1208 –Working Group 3 – Electromagnetic modelling, inversion, imaging and data-processing techniques for Ground Penetrating Radar
This work aims at presenting the main results achieved by Working Group (WG) 3 “Electromagnetic methods for near-field scattering …
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Control structure design and dynamics modelling of the organic Rankine cycle system
In this paper, the control structure for the organic Rankine cycle (ORC) system is proposed. This control structure is derived by using …
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Computation of Carson Formulas Using Piecewise Quadratic Approximation
In this paper, an existing numerical algorithm for high-accurate computation of exact Carson formulas based on piecewise linear …
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Comparison of Time-Domain Finite-Difference, Finite-Integration, and Integral-Equation Methods for Dipole Radiation in Half-Space Environments
In this paper we compare current implementations of commonly used numerical techniques - the Finite-Difference Time-Domain (FDTD) …
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Comparison of numerical electric field and SAR results in compound and extracted eye models
This paper compares the numerical results for the induced electric field and the specific absorption rate (SAR) obtained using the …
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Combined instrument transformers
Combined measuring transformers are a combination of voltage and current transformer. The most commonly applicable solution consists of …
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Central surveillance and control system adjusting and managing
The student should describe the characteristics of the central monitoring and control system at FESB. Special attention should be paid …
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CALCULATION OF SOLAR IRRADIATION AND SURFACE OPTIMAL ANGLE OF INCLINE
In order to produce electricity from the energy of solar radiation, it is necessary to know certain parameters, the basic of which is …
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Arduino based contact-free amper-meter
The student should describe the characteristics of the Arduino platform, types of sensors, shape and amplitude of the input signal, …
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Applications of Stochastic Collocation Method in Electromagnetic Compatibility
The paper reviews the use of deterministic-stochastic models in some electromagnetic compatibility (EMC) applications where the …
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AN OVERVIEW OF METHODS FOR OPTIMAL RECONFIGURATION OF DISTRIBUTION NETWORKS
The optimal reconfiguration of distribution networks (DM) represents the problem of determining the radial topology of the network, …
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An Efficient Deterministic-Stochastic Model for the Homogeneous Human Brain Model Dosimetry: ANOVA Approaches for Sensitivity Analysis of Model Parameters
In high frequency dosimetry of human brain it is necessary to develop computational models to estimate the temperature distribution …
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Advanced analysis of the transient impedance of the horizontal grounding electrode: from statistics to sensitivity indices
The paper deals with a stochastic analysis of influence of randomly distributed values of certain parameters on the value of the …
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A Study on the use of Compound and Extracted Models in the High Frequency Electromagnetic Exposure Assessment
The paper presents the numerical results for the induced electric field in the various models of the human eye and the head. The …
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3D Computation of the Overhead Power Lines Electric Field
In this paper, a 3D quasistatic numerical algorithm for computation of the electric field produced by overhead power lines is …
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110 kV overhead power line pillars grounding resistance measurements
The student should describe the basic concepts of the grounding system, types of grounding electrodes and analytical expressions that …
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10/0, 4 kV/kV substation grounding resistance measurements
The student should describe the basic concepts of the grounding system, types of grounding electrodes and analytical expressions that …
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Transcranial magnetic stimulation induced fields in different brain models
This paper gives a comparison of the numerical results for the induced electric field, electric current density and the magnetic flux …
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Time Domain Finite Element Method Analysis of Frequency Dependent Transmission Lines
This paper presents the finite element (FE) time-domain model for numerical solution of frequency-dependent transmission lines problem. …
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Time Domain and Frequency Domain Integral Equation Method for the Analysis of Ground Penetrating Radar (GPR) Antenna
The paper deals with the comparison between the frequency domain and time domain analysis of transient electric field generated by the …
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The grounding system design of a substation 110/20(10) kV Sucidar
In this paper, the TS 110/20(10) kV Sucidar earthing system was modeled based on the available project documentation for the substation …
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The electromagnetic-thermal dosimetry for the homogeneous human brain model
The electromagnetic-thermal dosimetry model of the human brain exposed to electromagnetic (EM) radiation is developed. The EM model …
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SUPPRESSION OF THE ATMOSFERIC OVER-VOLATGES IN GROUNDING NEUTRAL CONDUCTOR LOW VOLTAGE GRIDS
This article describes the problems of overvoltage discharge in low-voltage distribution networks in areas with high soil resistivity. …
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Stochastic sensitivity in thermal dosimetry for the homogeneous human brain model
The sensitivity analysis of thermal parameters in the homogeneous human brain model is presented, investigating their influence on …
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Stochastic Sensitivity in Homogeneous Electromagnetic-Thermal Dosimetry Model of Human Brain
In this work we examined how the variability in the brain morphology and the tissue properties affect the assessment of the homogeneous …
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Stochastic Collocation Method Applied to Transcranial Magnetic Stimulation Analysis
This work examines the influence of the brain tissue parameters’ uncertainty and the coil positioning variations within the …
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Some Computational Aspects of Calculation of Integrals Arising Within the Framework of Method of Moments - Application to Bioelectromagnetics
Formulation involving the electric field integral equation (EFIE) and the related numerical solution via Method of Moments (MoM) …
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Size of conductor clashing particles as an additional criterion for the power line protection
The collision of conductors of overhead lines under voltage in most cases results in the creation of sparks which, falling on a …
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Simulation of a DC motor torque control system with the three-phase thyristor rectifier
The first part of the paper covers the theoretical foundations of a DC motor with independent excitation. Then, a theoretical analysis …
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Self consumption systems in the substation 110/20(10) kV
This paper describes self-consumption systems that provide energy in a switchgear to power relay protection, monitoring, control, …
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Report on the heat resistance of the bedding material of 110kV cable from mines Ciritez and Buzet
Design basis for dimensioning HV cable bedding. Material samples from the Ciritez and Buzet quarries
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Report on geoelectrical characteristics of the soil at the site TS 110/10(20) kV
Izvjesce o ispitivanju geoelektrickih znacajki tla na lokaciji TS Split 3 Split. Podloge radi projektiranja uzemljivackog sustava.
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Report on energy efficiency audit for building Vukovarska 141 Makarska
Report on the energy audit of a residential building for the purpose of preparing an energy certificate
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Report on energy efficiency audit for building Vodoprivreda d.d. Split
Report on the energy audit of a residential building for the purpose of preparing an energy certificate
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Report on dust particle measurements for building Vukovarska 141 Makarska
For the purposes of the building’s energy audit, the concentration and quality of dust in the indoor air of the building at …
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Optimum reconfiguration of distribution networks using genetic algorithm
This paper describes an algorithm that, by combining heuristic methods and a genetic algorithm, enables optimal reconfiguration of …
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OPTIMIZING THE TRANSFORMER STATION TOPOLOGY IN ORDER TO MINIMIZE ANNUAL ENERGY LOSSES
Usually, when we talk about losses in a transformer, we classify the losses into two basic categories: losses in the iron …
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OPTIMAL RECONFIGURATION OF DISTRIBUTION NETWORKS USING HEURISTICS AND GENETIC ALGORITHMS
This paper describes an algorithm for determining the optimal reconfiguration of the distribution network using a heuristic method and …
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OPTIMAL INTEGRATION OF RENEWABLE ENERGY SOURCES IN DISTRIBUTION NETWORKS
This paper describes the general problems of the integration of renewable energy sources into the power system, with an emphasis on the …
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Optical fiber characteristics measurements
The student should describe the structure, use and properties of optical cables and measure the parameters necessary to verify their …
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Online Efficiency Optimization of a Vector Controlled Self-Excited Induction Generator
This paper presents a search-based approach to efficiency optimization of a vector controlled self-excited induction generator (SEIG). …
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On some integral approaches in electromagnetic dosimetry
The paper reviews some integral methods for electromagnetics dosimetry : Laplace equation/subdomain boundary element method (BEM) - LF …
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On Some Applications of Stochastic Collocation Method in Computational Electromagnetics: Applications in ground penetrating radar, bioelectromagnetics, grounding systems and buried lines
The paper reviews the use of deterministic-stochastic models some areas of computational electromagnetics where there is an uncertainty …
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On deterministic-stochastic time domain study of dipole antenna for GPR applications
A deterministic-stochastic transient study of Ground Penetrating Radar (GPR) dipole antenna radiating in a presence of a two-media …
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On deterministic-stochastic time domain study of dipole antenna for GPR applications
A deterministic-stochastic transient study of Ground Penetrating Radar (GPR) dipole antenna radiating in a presence of a two-media …
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Numerical relay settings calculations for small HPP Krcic
The paper deals with the problem of calculating and selecting the parameters for setting the protection functions of the electrical …
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New Models of a Z-Source Inverter Built of Standard MATLAB Simulink Blocks
In this paper, two new simulation models of a Z-Source inverter (ZSI) system are proposed. These models have been built only out of …
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Monte–Carlo analysis of wind farm lightning- surge transients aided by LINET lightning- detection network data
This paper presents a statistical method of analysis of wind farm lightning-surge transients, which employs a sophisticate wind farm …
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Modeling of a Power Converter with Coupled Inductors Using the Matlab Software Package
The goal of this master thesis was to make theoretical analysis of two-phase buck converter with coupled inductor and belonging model …
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Method for Nonlinear Fitting and Impedance Analysis with LCR Meter
In this paper new method for nonlinear fitting application is defined, described and tested. The method used the data acquired with LCR …
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Method for estimating backflashover rates on HV transmission lines based on EMTP-ATP and curve of limiting parameters
This paper presents a general method for estimating the backflashover rate (BFOR) on high voltage (HV) transmission lines. The method …
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Metal-oxide surge arrester modeling with the EMTP program
The paper deals with the issue of modeling metal oxide surge arresters for the purpose of numerical analysis of switching and …
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LAN cable characteristics measurements
The student should describe the construction, use and properties of LAN cables and measure the parameters necessary for LAN cable …
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Integral Equation Models in Some Biomedical Applications of Electromagnetic Fields
The paper reviews certain integral equation formulations and related numerical solution methods used in studies of biomedical …
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Input Shaping of the Synchronous Generator for Reduction of Self-induced Oscillations
This article suggests the application of input shaping for the elimination of electromechanical oscillations arising from changes in …
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Influence of Dead Time on Voltage Harmonic Spectrum of Grid-Connected PWM-VSC with LCL Filter
In recent years, the three-phase pulse width modulation controlled voltage source converter (PWM-VSC) has found its way to wide range …
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Indoor air quality measurements
The student should address the issue of air quality from a health and technical perspective and describe different measurement methods. …
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Impulse Impedance of the Horizontal Grounding Electrode: Experimental Analysis versus Full-wave Computational Model
The paper deals with the comparison of novel experimental and computational method for obtaining the impulse impedance of the …
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High voltage SF6 circuit breakers
In this paper, high-voltage SF6 circuit breakers are analyzed - their origin, history, use and production. The method of handling SF6 …
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Generator loss of excitation relay protection function
This thesis analyses different possible implementations of the numerical relay protection functions for the generator loss of …
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Frequency measurement in power system using the Raspberry PI
As part of the final work, it is necessary to create a cheap and efficient circuit for measuring the frequency of the power system …
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FET-Based Numerical Modeling of a Self-Excited Induction Generator Driven by a Controlled DC Motor
In this paper, a new and non-traditional approach is proposed for modeling a selfexcited induction generator (SEIG) driven by a …
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Fabrication, experimental study and testing of a novel photovoltaic module for photovoltaic thermal applications
Solar Photovoltaic Thermal (PV/T) System is the integration of Solar Photovoltaic (PV) module and thermal system to serve the dual …
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EUROfusion Integrated Modelling (EU-IM) Capabilities and Selected Physics Applications
Recent developments and achievements of the EUROfusion Code Development for Integrated Modelling project (WPCD), which aim is to …
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Estimation of the wall thermal properties through comparison of experimental and simulated heat flux
The aim of the paper is to estimate thermal properties (thermal conductivity and thermal diffusivity) of the concrete wall with unknown …
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Estimating future balancing power requirements in wind–PV power system
This paper presents a general model—based on the Monte Carlo simulation—for the estimation of power system uncertainties and associated …
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Electrical protection functions settings calculation for generator D and step-up transformer =TD in HPP Zakucac
The paper deals with the problem of calculating and selecting the parameters for setting the protection functions of the electrical …
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Electric Power Systems for the Supply and Distribution of an Electricity in Oil Refinery
Through the first part of the paper, industrial plants, technological equipment and types of industrial plants are theoretically …
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Computation of the electric field in the vicinity of overhead power line towers
There are many numerical models for computing extremely low-frequency electric and magnetic fields of high-voltage substations and …
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Automation of distribution networks
In this paper, the scope of functions related to the automation of distribution networks is defined. The paper explains the reasons for …
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Arduino-based thermo-higrometer
The student should describe the characteristics of the Arduino platform, types of sensors, signal processing, output signals, …
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Arduino-based solar irradiance meter
The student should describe the characteristics of the Arduino platform, sensor types, input signal shape and amplitude, signal …
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Application of Gaussian Copulas in Describing Station Impinging Lightning Overvoltages
This paper presents an application of the bivariate Gaussian copulas in describing—by means of a statistical distribution …
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Android application for generation of GPS heatmap
As part of the final thesis, an application was created that allows displaying an Android GPS heat map, tracking the user’s …
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Analysis of lightning activity using LINET network
This thesis deals with the various methods for lightning strikes monitoring and identification, with special emphasis on the LINET …
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Airborne dust particle concentration measurements
The student should address the issue of dust in the air from a health and technical perspective and describe different measurement …
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A Stochastic Analysis of the Transient Current Induced along the Thin Wire Scatterer Buried in a Lossy Medium
The paper deals with the stochastic collocation analysis of a time domain response of a straight thin wire scatterer buried in a lossy …
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A comparison of Finite-Difference, Finite-Integration, and Integral-Equation methods in the Time-Domain for modelling Ground Penetrating Radar antennas
Development of accurate models of GPR antennas is being driven by research into more accurate simulation of amplitude and phase …
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10/0, 4 kV/kV power transformer winding resistance measurements
The student should describe the working principle of the induction transformer, the transformer equations, the vector diagram of the …
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10/0, 4 kV/kV power transformer turns ratio measurements for different position of the regulation switch
The student should describe the principle of operation of an induction transformer, transformer equations, vector diagram of an ideal …
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Wind Power Forecast Error Simulation Model
One of the major difficulties introduced with wind power penetration is the inherent uncertainty in production originating from …
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Wind power forecast error simulation model
One of the major difficulties introduced with wind power penetration is the inherent uncertainty in production originating from …
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Wind energy
In the introductory part of the paper, the problem of today’s energy and energy sources is briefly explained, and how more and …
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Voltage control in MV distribution networks through coordinated control of tap changers and renewable energy sources
The significant penetration of renewable energy sources (RES), like wind and solar power plants, into distribution networks has changed …
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Transmission line distance protection settings using DIGSI software package
Using the Siemens DIGSI software package, all the most important steps that need to be taken to set up the relay protection system of a …
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Transient analysis of coupled non-uniform transmission line using finite element method
This paper presents a finite element time domain model for a numerical solution of a coupled non-uniform transmission line problem. On …
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Transient analysis of a non-uniform multiconductor transmission line
This paper presents a finite element time domain model for electromagnetic transients calculations on a non-uniform multi-conductor …
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Surge arrester selection at 20(10) kV level and in the neutral point for the TS 110/20(10) kV Imotski
The paper presents a detailed calculation and selection of parameters for metal oxide surge arresters in a distribution network …
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Substation relay protection testing
The paper should provide a historical overview of relay protection with a special emphasis on current numerical relays. Also, the ABB …
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Strengthening the Capacities for Application and Technology Transfer of Microelectromehanical Systems at the University of Split (MEMSplit)
We present an initiative to build research capacities in MEMS technology in Croatia through recently granted project financed by the …
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Stochastic collocation analysis of the transient current induced along the wire buried in a lossy medium
The paper deals with the stochastic collocation analysis of a time domain response of a straight thin wire scatterer buried in a lossy …
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Statistical Description of Counterpoise Effective Length Based On Regressive Formulas
This paper presents a novel statistical description of the counterpoise effective length due to lightning surges, where the (impulse) …
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Statistical description of counterpoise effective length based on regressive formulas
This paper presents a novel statistical description of the counterpoise effective length due to lightning surges, where the (impulse) …
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Statistical analysis of conductor clashing particles in low-voltage distribution network
Conductor clashing phenomena and sparks production have been analyzed for last decades. Those sparks can cause fire on the ground and …
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Solar power plant cost-benefit analysis
The paper describes the basic parts, characteristics of operation and production of solar power plants and the method of connecting …
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Software package Groza 2.0
The Groza 2.0 software package provides software support for the design of an optimal lightning protection system (external LPS …
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Software package for calculation of bus impedance matrix and short circuit calculation
Through the first part of the paper, primitive network matrices, incidence matrices, and the method of their formation are …
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Small hydro power plants
The paper describes the physical basis of water power utilization, the basic parts, the method of execution and the types of …
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Simulation of a DC motor speed control system with the single-phase thyristor converter
The first part of the paper deals with the theoretical foundations of a DC motor with independent excitation and speed control by …
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Sheath Loss Factors Taking Into Account the Proximity Effect for a Cable Line in a Touching Flat Formation
This paper presents the development of a correction coefficient for the International Electrotechnical Commission (IEC) Standard …
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Self and mutual ground impedances of cylindrical metal plates buried in homogeneous earth
This paper presents a numerical procedure for computation of self and mutual impedance of cylindrical metal plates buried in …
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Safety and health care during work on electromagneticly coupled cable system
Electromagnetic coupling of a system of high-voltage parallel cable lines in the case of performing work on a single parallel cable …
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Report on University library bulding energy audit revsion
Report on the energy audit of the University Library building in Split
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Report on the heat resistance of the bedding material 110kV cable
Ispitivanju toplinske otpornosti materijala za kabelsku posteljicu kamenoloma Kuk Ciritez i kamenoloma Prascari Buzet
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Report on power consomption in SS Guliver energija 10/0, 4 kV/kV and consumption of the water boilers in Guliver energija centre
According to the client’s request, active, reactive and apparent power was measured on the secondary busbars of TS Guliver …
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Report on indoor air quality measurements in Guliver energija centre
At the request of the client, indoor air quality parameters were measured, including: air velocity and flow rate, O2, CO2 and NOx …
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Report on geoelectrical characteristics of the soil at the site TS Sucidar Split
The paper presents the results of testing the geoelectric properties of the soil for the purpose of designing the grounding conductors …
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Report on energy efficiency audit for Municipal building of Podstrana
Report on the energy audit of a residential building for the purpose of preparing an energy certificate
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Report on energy efficiency audit for building Guliver energija
Report on the energy audit of a residential building for the purpose of preparing an energy certificate
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Report on energy efficiency audit for building Dakovacka 7
Report on the energy audit of a residential building for the purpose of preparing an energy certificate
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Reactive power compensation in the distribution networks and industry
The paper describes the basic properties of electric power in an alternating current system. The main consumers of reactive power are …
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PV Power Forecast Error Simulation Model
Presence of solar energy driven power sources has been increasing with remarkable trends in recent years. Such growth is mostly related …
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Power quality and energy consumption for SS Dugopolje 110/10 kV/kV
Electricity is treated as a commodity today. The quality of electricity, at all voltage levels, is strictly defined by international …
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Power plant economic dispatch
The problem of optimal economic involvement of power plants in traditional systems boils down to satisfying consumption in the system …
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Planning and development of the medium voltage distribution grid in the area Elektrodalmacija Split for the following 20 years
In this study, a proposal for the development of the distribution network is given based on the current situation and the forecasted …
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Optimal supply of industrial consumers
By integrating electrical energy storage equipment into consumer facilities, greater flexibility is achieved in terms of powering the …
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OPTIMAL COORDINATED CONTROL IN DISTRIBUTION NETWORKS WITH HIGH SHARES OF RES
In distribution networks with a high proportion of renewable energy sources (RES), classic methods of voltage regulation are not …
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On the use of the vertical straight wire model in electromagnetics and related boundary element solution
The paper deals with an analysis of various EMC problems related to radiation and scattering from wires using a vertical straight wire …
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On the numerical computation of cylindrical conductor internal impedance for complex arguments of large magnitude
This paper presents a numerical algorithm for computation of per-unit-length internal impedance of cylindrical conductors under com- …
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On continuous numerical Fourier transform for transient analysis of lightning current related phenomena
In this paper a novel numerical method is proposed for solving the Fourier transform of an arbitrary transient function. Fourier …
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Numerical relay settings using DIGSI 5 software package
The paper presents the procedure for parameterizing a numerical relay device type 7SJ8x from Siemens using the DIGSI 5 software package …
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Monte Carlo method for estimating backflashover rates on high voltage transmission lines
This paper presents a novel Monte-Carlo based model for the analysis of backflashover rate (BFOR) on high voltage transmission lines. …
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Model predictive control of gantry/bridge crane with anti-sway algorithm
This paper presents MPC (Model predictive control) controller, which provides fast transfer of cargo with sway reduction. The solution …
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Mode switching in modal domain models of overhead lines and underground cables
This paper presents brief review of different methods for calculation of eigenvalues and eigenvectors for application in the modal …
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Methods Of Health Risk Assessment For Human Exposure To High Frequency Electromagnetic Fields
The paper reviews some topics in human exposure to high frequency (HF) electromagnetic fields based on certain integral equation …
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MEMSplit - Boosting capacity for application and transfer of micro-electro-mechanic systems at University of Split
We present a project to build research capacities in MEMS technology in Croatia through a recently approved project financed by the …
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Medium voltage cables partial discharge diagnostics
In this paper, we described the basic principles of measuring partial outbursts (PI) of cables by off-line and on-line methods, and …
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Measurement of frequency spectrum with interpolated adaptive chirp-z transformation
In this paper Adaptive Chirp transform (ACT) and Chirp-z transform (CZT) for measurements of frequency spectrum are presented. …
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MAXIMIZATION OF EXPECTED WIND POWER PLANT PROFIT THROUGH THE OPTIMAL OFFERS ON THE DAY – AHEAD MARKET
Offers on the day-ahead market are delivered significantly before the actual time of delivery/reception of electricity, which …
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Load flow calculation in radial distribution networks
Calculation of power flows is one of the basic calculations used in stationary plant analysis and planning of the power system (EES). …
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Inverse Continuous Numerical Fourier Transform for Transient Analysis of Electromagnetic Phenomena
This paper presents a novel numerical algorithm for solving the inverse Fourier transform of an arbitrary transient function. The …
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Insulation coordination for high-voltage stations
The paper presents the application of IEC 60071 in the analysis of insulation coordination of high-voltage switchgear and substations. …
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Influence of the Soil Ionization on the Transient Current Induced along the Horizontal Grounding Electrode
The paper deals with the assessment of the influence of soil ionization on the transient current induced along the horizontal grounding …
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GA Optimized AVR Controller with Higher Degree of Freedom of Tuning of Wanted Response
A genetic algorithm (GA) was used in this article to obtain optimal parameters of the automatic voltage regulator (AVR) which will …
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Forward and inverse continuous numerical Fourier transform for transient analysis of electromagnetic phenomena
In this paper a numerical algorithm for solving the forward and inverse Fourier transform of arbitrary transient functions is …
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Flat plate solar photovoltaic–thermal (PV/T) systems : A reference guide
The increasing installed area of solar technologies around the world gives us an idea about the unlimited potential available in solar …
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Fixed-Image-Method-Based Transient Electromagnetic Model of Grounding System in Horizontally Stratified Multilayer Medium
In this paper, a frequency-domain-based transient electromagnetic model of grounding system in horizontally stratified multilayer …
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Experimental Method of Determining the Equivalent Circuit Parameters of a Switched Reluctance Machine
This paper presents an equivalent-circuit-based method to experimentally determine the phase inductance and the iron-loss resistance of …
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Expected future conditi ons for secure power system operation with large scale of RES
EU energy strategy is strongly focused on the large scale integration o f renewable energy sources. The most dominant part here is …
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Estimation of lightning current amplitudes incident to wind turbines in exposed locations
This paper proposes a novel and comprehensive methodology for estimation of lightning current amplitudes, which are incident to wind …
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Estimating BFOR on HV Transmission Lines Using EMTP and Curve of Limiting Parameters
This paper presents a method for estimating the backflashover rate (BFOR) on high voltage (HV) transmission lines. The proposed method …
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Energy and Reserve Co-optimization in Power System with Wind and PV power
Due to increase in renewable generation presence in power systems worldwide, current practices in day-ahead or hour-ahead operation …
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Electromagnetic-thermal dosimetry comparison of the homogeneous adult and child brain models based on the SIE approach
The results of the absorbed electromagnetic (EM) energy in brain models of adults and children due to incident plane wave of 900 MHz …
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Electricity market organization
The first part describes the historical development of the electricity market, which has been followed by electrical companies since …
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Effects of electromagnetic polarization in homogeneous electromagnetic-thermal dosimetry model of human brain
The paper deals with the effects of electromagnetic (EM) wave polarization on the induced specific absorption rate (SAR) and the …
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Direct Time Domain Modeling of the Transient Field Transmitted in a Dielectric Half-Space for GPR Applications
The paper deals with the study of a transient electric field transmitted into the dielectric half-space by means of the time domain …
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Development of software tool for calculation of hydropower production
As part of this study, a software package was developed and an appropriate procedure for evaluating the energy potential of hydropower …
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Development of a magnetic field sensor for acquisition of lightning fields within facilities
The purpose of this work was developing of a special magnetic sensor which can measure magnetic fields generated by lightning impulse …
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Developing New Electrical and Information Engineering Related Curricula to Respond to the Actual Global Challenges: The Renewable Energy Curriculum
The Erasmus Lifelong Learning Programme “SALEIE” (Strategic Alignment of Electrical and Information Engineering in European Higher …
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Correlation analysis of the Basin Inflows
The problem of optimal use of reservoirs is particularly complex, because the production of electricity in one basin indirectly affects …
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Computing the electromagnetic field of the system of arbitrarily positioned conductors in horizontally stratified multilayer medium
This paper presents a novel computational methodology, based on the finite element technique, for the analysis of electromagnetic field …
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Compensation of reactive power in distribution networks
Through the first part of the paper, the theoretical foundations of reactive power are given and the basic problems of integrating …
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Comparison of the antenna model and experimental analysis of an impulse impedance of the horizontal grounding electrode
The paper deals with the comparison of two methods for the calculation of the impulse impedance of the horizontal grounding electrode …
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Comparison of a TMS induced fields in homogeneous adult and child brain models using the surface integral equation approach
This paper gives a comparison of the numerical results for the induced electric field, electric current density and the magnetic flux …
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Combined temporary overvoltages due to single-pole short-circuit and Ferranti effect
The paper presents the determination of combined temporary overvoltages that appear on healthy phases of long unloaded lines in the …
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Characteristics and protection of distribution transformers
The paper describes the basic elements, types, method of execution and characteristics of distribution transformers. In addition to the …
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Calculation of energy losses in distribution transformers
The paper describes the materials used for the construction of transformers, and the types and consequences of the resulting losses. It …
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Autotransformer relay protection settings using DIGSI software package
This thesis provides a detailed steps for the configuration of the protection settings, using the DIGSI 4 software package by Siemens, …
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Analysis of transient stability of hidrogenerator
The paper presents the analysis and numerical calculation of the dynamic stability of a hydrogenerator under conditions of disturbances …
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Analysis of Transcranial Magnetic Stimulation Based on the Surface Integral Equation Formulation
The aim of this paper is to provide a rigorous model and, hence, a more accurate description of the transcranial magnetic stimulation …
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An Elecromagnetic Model for Coputation of Ground Fault Current Distribution
This doctoral thesis describes an originally developed electromagnetic model for calculating the distribution of ground fault current …
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Advanced numerical modelling of grounding systems in multilayer medium
The paper briefly describes the originally developed harmonic electromagnetic model and the transient electromagnetic model of the …
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Advanced electromagnetic-thermal dosimetry methods for the human exposure to high frequency electromagnetic fields
This paper reviews certain electromagnetic-thermal dosimetry analysis methods developed by the authors and applied to the exposure of …
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Advanced double 2D numerical integration in surface charge simulation method
Numerical models for computing low-frequency electromagnetic fields can contain spatial 2D finite elements, which are numerically most …
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A surface charge simulation method based on advanced numerical integration
Numerical models for computing low-frequency electromagnetic fields can contain spatial 2D finite elements, which are numerically most …
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3D Computation of the Power Lines Magnetic Field
In this paper, a 3D quasi-static numerical algorithm for computation of the magnetic field produced by power lines is presented. These …
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Wake-on-a-Schedule: Energy-aware Communication in WiFi Networks
Excessive energy consumption of mobile device WiFi (IEEE 802.11x) interface is limiting its operational time on batteries, and impacts …
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Transient statistics from the lightning strike current flowing along grounding electrode
This paper aims to couple analytical solution of the Pocklington integro-differential equation with stochastic techniques for the …
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Transient Response of Grounding Electrode using the Wire Antenna Theory Approach
The paper deals with an assessment of transient current induced along the vertical grounding electrode applying the thin wire antenna …
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Transcranial stimulator insulation resistance and dielectric strength measurements report
For the needs of the company SGM, testing of the insulation properties of a transcranial stimulation device was carried out. Insulation …
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Time Domain Analysis of the Horizontal Grounding Electrode: Antenna theory approach versus transmission line approximation
The paper deals with a transient analysis of a horizontal grounding wire immersed in a lossy half-space by means of a rigorous antenna …
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Three-phase PWM converter with LCL filter optimisation including system nonlinearities
This doctoral dissertation proposes an original method for selecting and optimizing the basic parameters of the LCL filter of a …
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Testing LAN cabling installations in the laboratory of the University Department of Professional Studies
For the needs of the University Department of Professional Studies, testing of signal attenuation, individual and collective near-end …
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Technical-economical due diligence for WPP Lukovac
As part of the technical-environmental in-depth survey, in addition to the analysis of the previous ones, a new wind study and a …
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TECHNICAL AND COMMERCIAL LOSSES IN THE ELECTRICITY DISTRIBUTION NETWORKS
The paper analyzes technical and commercial losses of electricity in distribution networks. Technical and commercial losses bring large …
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Statistical Analysis of Particles of Conductor Clashing
Fire ignition as a consequence of conductor clashing has happened in many countries all over the world. These fires can cause severe …
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Small Photovoltaic Power Plant Influence to the Power Quality Parameters
The impact of small solar power plants on the grid and on power quality parameters (voltage fluctuations, voltage unbalance and …
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Short-term Inflow Prediction Using Artificial Neural Network
Modeling of hydrological systems is generally based on time series, and instead of previously used linear statistical models, …
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Selection of wind power plant internal cable grid topology
This thesis consists of seven chapters, which will be briefly described below. The first chapter is an introduction, through which a …
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Selection of parameters for current and voltage transformers for HV generator step-up transformer bays =E3, =E5, =D8 and =D10 in HPP Zakucac
The paper presents the calculation and, based on it, the choice of technical parameters of current and voltage (combined) measuring …
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Report on reactive power compensation efficiency at location Trondheimska 4A
As part of the energy inspection of the residential building Trondheimska 4, the correctness of the dimensioning of the capacitor …
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Report on energy efficiency audit for building Trscanska 53
Report on the energy audit of a residential building for the purpose of preparing an energy certificate
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Report on energy efficiency audit for building Domovinskog rata 117 (Strozanac)
Report on the energy audit of a residential building for the purpose of preparing an energy certificate
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Report on energy efficiency audit for building Dinka Simunovica 15
Report on the energy audit of a residential building for the purpose of preparing an energy certificate
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Report on energy efficiency audit for building D. Trondheimska 4a, 4b, 4c i 4d.
Report on the energy inspection of the residential building and the accompanying business premises for the purpose of creating an …
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Relay protection settings calculation for the 220 kV switchyard and incident transmission lines in HPP Zakucac
The paper presents theoretical foundations and calculations on which the selection of parameters of the relay protection system of the …
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Probabilistic power flow calculation in power systems with wind power plants
This paper provides an insight into power flows in a system with included variable energy sources, in this case wind farms. In the …
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Preliminary grid connection analysis and solution for WPP Tovarnik
The study examines and selects the method of connecting the Tovarnik wind power plant to the 110 kV transmission network or the 30 kV …
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Piezoelectric Micro and Nano Structures and their Applications
We present recently granted project entitled as “Capacity building and technology transfer of micro-electromechanical systems at the …
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Partial discharge measurements on the subnetwork section SS Sucidar16 – SSS Sucidar
The measurements were made in the 10/0.4 kV substation TS Sucidar 16. The so-called off-line measurement method was used, whereby the …
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Overvoltage protection of the new 100-kV cables in HPP Senj
The paper deals in detail with the issue of optimal overvoltage protection of new 110 kV cables in the Senj HPP, which connect the …
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Optimization of reactive power in power systems using the particle swarm optimization algorithm
In the introduction, the need for optimization of reactive power is described in a few sentences and a description of the work is …
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Optimal coordinated control of distributed energy sources
Renewable sources increase the self-sustainability of the electric power system in the event of a possible energy crisis in the …
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On the Analysis Methods for the Time Domain and Frequency Domain Response of a Buried Objects
There has been a continuous interest in the analysis of ground-penetrating radar systems and related applications in civil engineering. …
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On interdependence among transmit and consumed power of macro base station technologies
Dynamic adaptation of the base stations on/off activity or transmit power, according to space and time traffic variations, are measures …
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Numerical relay settings calculation for the generator at HPP Prancevici
The paper deals in detail with the calculation and selection of settings for the numerical relay device type 7UM6225 from Siemens for …
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Models for estimating the number of lightning strikes to transmission lines
The paper describes the problem of determining (estimation) the number of direct lightning strikes in high-voltage power lines, based …
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Modeling of current-limiting air-core series reactor for transient recovery voltage studies
This paper presents a methodology for obtaining the current-limiting air-core series reactor model suitable for the transient recovery …
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Measurements of the active and reactive power consumption of the common loads (light system and elevators) of the dwelling building Trscanska 53
As part of the energy audit of the building at Trscanska 53, the consumption of common appliances (elevators and lighting in staircases …
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Measurement and modeling of the propagation of the Ripple Control Signal through the distribution network
The paper deals with the estimation of the vertical propagation of the Ripple Control Signal (RCS) through the distribution network …
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Matlab based flickermeter
Voltage flickers are one of the most important parameters of power quality. It deserves a special attention because people sense it …
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Mains Voltage Dynamic Support by Means of Small Solar Power Plants
The impact of small solar power plants on the depth of voltage sag is significantly dependent on the voltage level and grid impedance …
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Izvjesce o energetskom pregledu stambene zgrade u Ulici Joke Knezevica 1, Omis
Report on the energy audit of a residential building for the purpose of preparing an energy certificate
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IRT measurements report on TS VE Jelinak 12/110 kV/kV
A thermographic survey and analysis of the results was made for the key elements of the LV, MV and HV distribution of TS VE Jelinak
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IRT measurements report for factory Omial Novi d.o.o.
A thermographic examination and analysis of the results was carried out for the key elements of the LV distribution in the Omial Novi …
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Internal Impedance of Two-Layer Cylindrical Conductors
Computation of the internal impedance per unit length of solid and tubular cylindrical conductors, energized by time-harmonic current, …
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Interfacing Harmonic Electromagnetic Models of Grounding Systems With the EMTP-ATP Software Package
This paper proposes a methodology for interfacing the frequency-domain harmonic electromagnetic models of complex grounding systems …
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Integral Equation Based Dosimetry Model of the Human Brain: Frequency Dependence of the Results
The homogeneous human brain dosimetry model based on the electric field integral equation (EFIE) is presented. The mathematical model …
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Infrared thermography measurements report for building Kindergarten Cvrcak in Kastela
A combination of infrared thermography and various moisture measurement techniques were used to measure the facades, load-bearing and …
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Influence of snow and ice on the performance of outdoor insulators
The paper deals with the issue of choosing external insulation (for transmission lines and external switchgear) under conditions of …
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Inflow simulation using first order autoregressive model
In power systems with a significant share of hydropower, planning the operation of hydroelectric power plants is of great importance. …
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IMPACT OF PV POWER PLANTS ON THE VOLTAGE CONDITIONS AND POWER SYSTEM LOSSES IN MV DISTRIBUTION NETWORK
Solar photovoltaic (PV) plants are the fastest growing energy sources in the world, with annual growth rates of 25-35% over the last …
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Impact of PV Power Plants on the Voltage Conditions and Power System Losses in MV Distribution Network
Photovoltaic plants (PV) are among the fastest growing energy sources in the world, with annual growth rates of 25-35% over the last …
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High-Accurate Numerical Computation of Internal Impedance of Cylindrical Conductors for Complex Arguments of Arbitrary Magnitude
In this paper, a numerical model is proposed for computing the per-unit-length internal impedance of tubular cylindrical conductors for …
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Hedge-Algebra-Based Voltage Controller for a Self- Excited Induction Generator
This paper presents an indirect rotor-flux- oriented (IRFO) control system of the self-excited induction generator (SEIG) in which …
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Geometrical Approximation of the Overhead Power Line Conductors
A numerical algorithm for segmentation of overhead power line conductors, which form a catenary, for 3D electric and magnetic power …
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Energy efficiency audit report for building Hektoroviceva 51 (Solin)
Report on the energy inspection of the residential building for the purpose of creating an energy certificate
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Energy efficiency audit report for building A. B. Simica 11 (Split)
Elaborate on the energy inspection of a residential building for the purpose of creating an energy certificate
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Energy audit report for building c.z. 4034/26 Ploce
Report on the energy audit of a residential building for the purpose of preparing an energy certificate
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Energy and economic analysis of the sHPP Peruća - novelation
As part of this study, the energy-economic analysis of the construction of the Peruca HPP was updated, where as part of it: a) The …
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Electrical protection functions settings calculation for generator C and step-up transformer =TC in HPP Zakucac
The paper deals with the problem of calculating and selecting the parameters for setting the protection functions of the electrical …
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Electrical protection functions settings calculation for generator B and step-up transformer =TB in HPP Zakucac
The paper deals with the problem of calculating and selecting the parameters for setting the protection functions of the electrical …
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Electric facilities, Instructions for laboratory exercises
The content of these Instructions for laboratory exercises in electrical plants is harmonized with the teaching material from the …
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Distance protection of double-circuit transmission lines
The paper describes the issue of protecting dual-system high-voltage transmission lines using distance protection. The analysis of the …
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Dimension calculation and selection of grounding transformer and associated resistance for grounding of generator in HPP Prancevici
The paper presents a detailed analysis and accompanying calculation based on which the equipment for grounding the star point of the …
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Development of distribution grid for next 20 years for the distribution area Elektra Zadar
In this study, a proposal for the development of the distribution network is given based on the current situation and the forecasted …
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Design basics of synchronous generators relay protection systems
The paper describes the issues of designing a relay (electrical) protection system for synchronous generators of different nominal …
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Cost-benefit, sensitivity and risk analysis related to wind power plant project
This paper describes the basic parts, operation and production characteristics of wind power plants and their connection to the power …
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Correlation Analysis of Historical Inflow Data
Within the framework of correlation analysis, the existence of a relationship between random variables, its shape, strength and …
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Coordinated Control of Renewable Energy Sources in Distribution Networks
Renewable energy sources (RES) connection to medium voltage distribution networks has become widespread trend during the last years, …
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Characteristics of Basin Inflows : A Statistical Analysis for Long-Term/Mid-Term Hydrothermal Scheduling
The presented paper focuses on the characteristics of reservoir inflows and the appropriate inflow model for long-term/mid-term …
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Analysis of Power Converter Losses in Vector Control System of a Self–Excited Induction Generator
This paper provides analysis of losses in the hysteresis-driven three-phase power converter with IGBTs and free-wheeling diodes. The …
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Analysis of models of direct lightning strikes to free-standing objects
The paper explores the theoretical background of highly sophisticated mathematical models of lightning strike development in …
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An Efficient Integral Equation Based Dosimetry Model of the Human Brain
Dosimetry model of the human brain based on the surface integral equation (SIE) is developed. Mathematical model of a lossy homogeneous …
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Advanced Numerical Computation of Electromagnetic Field of Power Lines and Substations
In this doctoral thesis, an improved quasi-static electromagnetic model for calculating the low-frequency electromagnetic field of …
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A statistical analysis of probabilistic functions of natural inflows
For medium- and long-term planning of hydropower plant operations, the target observation period of several months to a year is usually …
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A Review of Some Analytical Solutions to the Grad-Shafranov Equation
In this paper an overview of analytical solutions to the Grad-Shafranov equation for the tokamak equilibrium is given as is a short …
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52/5000 Development of software package for power flow calculation
Power system simulation using computers is becoming more and more important in design, management and education. Various calculations …
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Wire antenna model of the vertical grounding electrode
A straight wire antenna model of the vertical grounding electrode has been presented in the paper. The formulation is based on the …
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Wind power plant capacity allocation in areas with limited transmission capacity
This paper proposes a simulation framework for assessing the possibility of WPP integration into the existing transmission network in …
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Voltage dividers for high-voltage test measurements
The paper presents the issues of designing resistive and capacitive voltage dividers for measuring high (AC, DC and surge) test …
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Vector Control System of Self-Excited Induction Generator Including Iron Losses
In this doctoral dissertation, a new dynamic model of an asynchronous machine with iron losses included is proposed. Within the …
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Vector control system of a self-excited induction generator including iron losses and magnetic saturation
We propose a novel indirect rotor-flux-oriented control system of a self-excited induction generator with online calculated iron losses …
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Transient Response of a Buried Wire
The paper deals with a transient analysis of a horizontal straight thin wire buried in a lossy half-space using the rigorous approach …
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Transient modelling of multiconductor transmission line with frequency dependent parameters
In this paper, the calculation of transients on a multiwire line is performed using the finite element method, including the frequency …
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Transient electromagnetic model of grounding system in horizontally stratified multilayer medium
In this doctoral thesis, a transient electromagnetic model for the analysis of a grounding system in a horizontally stacked multilayer …
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Time-Harmonic Modelling of Two-Winding Transformers Using the Finite Element Technique
In this paper a model of a two-winding transformer based on the finite element technique is proposed. The model employs a T-equivalent …
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Report on HEP OPS PrP Split Administration Building Energy Audit
Report on the energy audit of the HEP OPS PrP Split administrative building
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Report on energy efficiency audit for building Vukovarska 113
Report on the energy audit of a residential building for the purpose of preparing an energy certificate
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Report on energy efficiency audit for building D. Simunovica 25
Report on the energy audit of a residential building for the purpose of preparing an energy certificate.
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Report on Brodomerkur Adminstrative Building Audit
Report on the energy audit of the Brodomerkur administrative building
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Report on Apart-hotel Tamaris Energy Audit
Energy audit report for the aparthotel Tamaris
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Relay protection settings calculation for the 110 kV switchyard and incident transmission lines in HPP Zakucac
The paper presents the theoretical foundations and calculations on which the selection of the parameters of the relay protection system …
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Relay protection of asynchronous motor
The paper presents the issues of implementing a relay protection system for induction motors connected at a voltage level of 0.4 kV. …
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Preliminary grid connection analysis and solution for WPP ZD2P and WPP ZD3P
As part of this study, the technical and energy requirements that the wind power plant must fulfill in order to obtain approval for …
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Preliminary grid connection analysis and solution for WPP Otrić
The study examines and selects the method of connecting the Otrić wind power plant to the 110 kV transmission network or the 30 kV …
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Preliminary grid connection analysis and solution for WPP Čućin
The study examines and selects the method of connecting the Čućin wind power plant to the 110 kV transmission network or the 30 kV …
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Predictive control of crane system with algorithm for sway reduction
Transport in the modern globalized world is one of the important factors that significantly affects the functioning and development of …
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Power quality measurements on SS Smrdecac-4
Power quality characteristics were measured on the LV side of the 10/0.4 kV/kV transformer at TS Smrdecav IV as part of an energy …
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Planning and development of the medium voltage distribution grid in the area Elektrojug for the period 2011-2031.
In this study, a proposal for the development of the distribution network is given based on the current situation and the forecasted …
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Partial discharge measurements on the subnetwork section SS Sucidar – SS Gsc1 – SS Gsc2 – SS Smrdecac 5 – SS Smrdecac 8
With the exception of RTS Sucidar, measurements were made in 10/0.4 kV substations. The so-called on-line measurement method, where 10 …
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Optimization of Hydraulic Digital Governor parameters using EMTP-RV
Application of hydraulic digital governor is an important step in achieving a fully integrated system for stability studies. In this …
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Optimal technical solution for transmission grid connection of WPP ST3-1/2 Visoka Zelovo
As part of this study, the technical and energy requirements that the wind power plant must fulfill in order to obtain approval for …
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On the estimation of Heidler function parameters for reproduction of various standardized and recorded lightning current waveshapes
A highly accurate and robust Marquardt least squares method, which simultaneously solves a set of nonlinear equations, is employed to …
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Novel Equivalent Circuit of Switched Reluctance Machine with Iron Losses
The objective of this paper is to present a method for determination of the equivalent circuit parameters of a switched reluctance …
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Neural Network and Fuzzy Logic Based Control of Induction Machines
Induction motors have been used as the workhorse in industry for a long time due to their being easy to build, highly robust, and …
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Monte Carlo analysis of wind farm surge arresters risk of failure due to lightning surges
This paper presents a Monte Carlo procedure intended for the assessment of the metal-oxide (MO) surge arresters risk of failure in …
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Method to generate correlated samples of wind speed / wind power generation
The need to develop methods for simulating the production of wind power plants is due to the fact that measurements of wind speeds, …
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Method for Electromagnetic Thermal Dosimetry of the Human Brain Exposed to High Frequency Fields
The dissertation describes in detail the development of the electromagnetic and thermal model of the human brain. The electromagnetic …
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Measurement of the power quality in SS Vrh Sucidra - 18
Power quality characteristics were measured on the LV side of the 10/0.4 kV/kV transformer at TS Vrh Sucidra - 18 as part of an energy …
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Measurement of the power quality in SS Krizine - 5
Power quality characteristics were measured on the LV side of the 10/0.4 kV/kV transformer at TS Krizine - 5 as part of an energy …
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Measurement and Estimation of the Extremely Low Frequency Magnetic Field of the Overhead Power Lines
Paper reports the simple model to estimate the value of the Extremely low frequency magnetic field of the overhead power line. The …
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Least squares estimation of double-exponential function parameters
In this paper an effective numerical algorithm for computation of double-exponential function parameters based on the available input …
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Least squares estimation of double exponential function parameters
In this paper an effective numerical algorithm for computation of double-exponential function parameters based on the available input …
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IR Thermography measurements on SS Omial Novi
Thermal imaging tests are carried out preventively, with the aim of early detection of the causes of dangerous heating. In this way, it …
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Interdependence and persistence analysis of wind speed time series from different locations in croatia
In this paper, an analysis of the mutual dependence of wind speeds at different locations in Croatia was carried out. For the purposes …
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Influence of Dead-time on Design of LCL-filter for Three-phase Voltage Source Converter
Today, three-phase voltage source converters (VSC) are connected to the grid through LCL-filters. This is because the LCL-filters can …
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Improvement of Synchronous Generator Power Stability Using Hydraulic Digital Governor
In this paper, EMTP-RV model of hydraulic digital governor is used in order to investigate a possibility to improve synchronous …
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Grounding grid transient analysis using the improved transmission line model based on the finite element method
The improved transmission line (ITL) model of a grounding grid has been already used in engineering practice for a grounding grid …
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Grounding and short-circuit protection of wind farm cable network
The paper presents the issue of selecting the grounding method for a typical wind farm’s medium-voltage cable network, …
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Generated heat within power cable sheaths per unit time and volume
An assessment of the generated heat per unit time and volume within cable sheaths is required to determine the corresponding …
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Fuzzy Logic vs. Classical PI Voltage Controller for a Self-Excited Induction Generator
Vector control algorithms are often used for control of the self-excited induction generators (SEIGs). This paper presents a …
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Fuzzy DC-Voltage Controller for a Vector Controlled Stand-Alone Induction Generator
This paper presents a vector control system of the self-excited induction generator (SEIG) employing an indirect rotor-field-oriented …
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Frequency and Time Domain Analysis of Influence of the Grounding Electrode Conductivity on Induced Current Distribution
The paper deals with an assessment of the influence of finite conductivity to the current induced along the horizontal grounding …
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Finite element improved transmission line model of a grounding grid
This paper presents the improved transmission line (ITL) model for a grounding grid analysis based on the finite element method (FEM). …
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Finite element improved transmission line model of a grounding grid
This paper presents the improved transmission line (ITL) model for a grounding grid analysis based on the finite element method (FEM). …
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Energy efficiency audit for building Dobrilina 7
Report on the energy audit of a residential building for the purpose of preparing an energy certificate.
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Earth-fault protection of synchronous generators
The paper deals in detail with the issue of selecting the optimal relay protection system for the stator winding of a synchronous …
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Distance protection of high-voltage transmission lines
The paper describes the issue of protecting high-voltage transmission lines using distance protection. An analysis of the calculation …
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Coupled Electromagnetic and Thermal Analysis of Single-Phase Insulated High-Current Busducts and GIL Systems
This paper presents a mathematical model for the coupled electromagnetic and thermal analysis of the single-phase insulated …
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Correlation and autocorrelation characteristics of Croatian wind resource and method of synthetic wind data simulation
The variability of wind power production poses the greatest challenge in the integration of large-scale wind power in power systems. An …
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Contribution to the analysis of wind turbine exposure to direct lightning strikes
It is known that, based on the recommendations from IEC 61400-24:2010, the lightning protection of wind turbines (VA) is based on the …
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Characteristics of basin inflows—a statistical analysis for long-term/mid-term hydrothermal scheduling
The objective was to find the type of distribution that best fits the particular observations data sets in most cases for model which …
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Characteristics of basin inflows—a statistical analysis for long-term/mid-term hydrothermal scheduling
The presented paper focuses on the characteristics of reservoir inflows and the appropriate inflow model for long-term/mid-term …
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Assessment of wind power integration capabilities into the existing transmission network by analyzing typical operating conditions
The high penetration of wind power plants (VE) in the power system can be accelerated by prudent use of existing transmission …
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Antenna model of the horizontal grounding electrode for transient impedance calculation: Analytical versus Boundary Element Method
The paper deals with a simple and efficient procedure for the calculation of the transient impedance of the horizontal grounding …
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Analytical Modeling of a Transient Current Flowing Along the Horizontal Grounding Electrode
This paper deals with an analytical solution of the time domain Pocklington integro-differential equation for the transient current …
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Analysis of surge arrester energy withstand in protecting wind turbines based on Monte Carlo simulation
This paper presents a procedure for assessing the failure risk of metal oxide (MO) surge arresters intended for the protection of wind …
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Analysis of power losses and temperature increase for single-phase insulated high-current busducts
This paper presents a coupled electromagnetic and thermal analysis of single-phase isolated circular high-current busducts as well as …
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Algorithm for optimal wind power plant capacity allocation in areas with limited transmission capacity
One of the basic requirements for making a high- level integration of wind power plants (WPPs) in power systems possible are much …
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Advanced algorithms for analysis of electromagnetic fields of power lines and substations
The calculation of low-frequency electromagnetic fields in the vicinity of power lines and facilities is important during their …
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A Simple Antenna Model of the Human Nerve
An antenna model of the human nerve has been proposed. The model is based on the Pocklington integro-differential equation for the …
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A prototype flash cooling desalination system using cooling water effluents
This paper presents a flash cooling desalination system to reduce thermal pollution and also to produce freshwater using the heat …
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A coupled nonuniform transmission line analysis using FEM
This paper presents a finite element frequency domain model for numerical solution of the coupled nonuniform transmission line (NTL) …
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Wind power integration considering limited transmission capacity
Due to the strong development of wind power and lack of investment in the development and revitalization of the transmission network, …
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Transient analysis of grounding systems for wind turbines
The paper deals with transient analysis of grounding systems wind turbines. A typical wind turbine grounding system arrangement based …
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Time-harmonic analysis of grounding system in horizontally stratified multilayer medium
This paper extends an electromagnetic model for time-harmonic analysis of grounding system in horizontally stratified multilayer medium …
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Selection of distribution network grounding resistance
The paper analyzes the criteria based on which the value of the effective resistor for grounding the distribution network is …
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Scalar electric potential in the air due to a direct current point source buried in the earth
It is a little known fact that in direct current grounding system analysis the current source buried in earth causes a scalar electric …
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Report on the heat resistance of the bedding material of power cables 220.110, 35, 20 (10) kV substation PLAT
The excess temperature of an underground power cable is proportional to the specific thermal resistance of the environment in which the …
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Report on the heat resistance of the bedding material 110kV cable (Kamenolom Krizice)
The transmission capacity and lifespan of power cables, and thus the quality and reliability of power supply to consumers, directly …
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Report on the heat resistance of quartz sand Fuga Sand manufacturer Kema Slovenia
Due to specific project requirements, primarily steep laying routes, a classic cable trench and bedding are not a suitable solution. A …
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Report on IR Thermography measurements on HPP Peruca
Thermal imaging tests are carried out preventively, with the aim of early detection of the causes of dangerous heating. In this way, it …
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Report on geoelectrical characteristics of the soil at the site TS 110/10(20) kV Policnik
An important prerequisite for the correct and economical dimensioning of the earth electrode is the knowledge of the geoelectric …
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Relay protection application to auxiliary systems of HPP Zakucac
The paper deals in detail with the problem of calculating and selecting the settings of the electrical (relay) protection system of 0.4 …
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Preliminary grid connection analysis and solution for WPP ST3-1/2 Visoka Zelovo
The study deals with and selects the method of connecting the wind power plant ST3-1/2 Visoka Zelovo to the 110 kV transmission network …
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Preliminary grid connection analysis and solution for WPP Orljak
The study examines and selects the method of connecting the Orljak wind power plant to the 110 kV transmission network or the 30 kV …
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Preliminary grid connection analysis and solution for WPP Boraja II
The study deals with and selects the method of connecting the Boraja II wind power plant to the 110 kV transmission network or the 30 …
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Optimal technical solution for transmission grid connection of WPP ST1-1 Voštane and WPP ST1-2 Kamensko
As part of this study, the technical and energy requirements that the wind power plant must fulfill in order to obtain approval for …
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Optimal technical solution for transmission grid connection of WPP Ogorje
As part of this study, the technical and energy requirements that the wind power plant must fulfill in order to obtain approval for …
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Optimal technical solution for transmission grid connection of WPP Lukovac
As part of this study, the technical and energy requirements that the wind power plant must fulfill in order to obtain approval for …
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On the Analysis of Vertical Straight Thin Wire Above a Lossy Ground - Analytical versus numerical solution
The paper deals with analytical and numerical modeling of vertical straight thin wire above a lossy ground. The analysis is based on …
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Modelling a nanowire grid for light-sensing applications
Nanostructures hold promise as building blocks for a new generation of sensing devices because they could enhance detection and …
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Modeling of Saturated Synchronous Generator Based on Steady-State Operating Data
This paper deals with modeling of the saturated salient-pole synchronous machines using analytical saturation model obtained based on …
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Measurements and Modelling of Base Station Power Consumption under Real Traffic Loads
Base stations represent the main contributor to the energy consumption of a mobile cellular network. Since traffic load in mobile …
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Magnetization Curve Identification of Vector-Controlled Induction Motor at Low-Load Conditions
In many drives the induction motor torque is transferred to the load through complex mechanical connections which produce an initial …
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Liew-Mar model of lightning-induced transients on transmission lines
The paper presents the theoretical basis of the so-called of the Liew-Mar model for the analysis of overvoltage conditions on an …
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Laboratory Setup for Developing Inteligent System in the Electrical-Equipment-Related Infra Red Inspection
Infrared thermography IRT itself is theoretically well understood in terms of quantum physics and hence widely used as practical …
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Interpolation of TS 220/110/35/20(10) kV Plat into existing power system grid
This study deals with the issue of entering into operation TS 220/110/35/20(10) kV Plat and the associated connection lines 220, 110, …
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Insulation verification using low voltage and high current sensitivity
Classic approach for determining insulating resistance by using commercial testers is not reliable for testing different types of …
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Influence of the Grounding Electrode Conductivity on the Induced Transient Current
The paper deals with the assessment of the influence of finite conductivity of the horizontal electrode to related transient response. …
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Identification of Rotor Resistance and Transient Inductance of Induction Motors Using Frequency Selection Criterion
The paper presents a method of estimating the transient inductance and rotor resistance of an induction machine in a self-commissioning …
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Hybrid Model for Analysis of Ground Fault Current Distribution
This paper presents a hybrid numerical model for computation of the phase-to-ground fault current distribution between soil and neutral …
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Grounding resistance relay protection schemes
The paper analyzes the problem of protection of a small active resistor for grounding the distribution network. The mentioned small …
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Electrical protection functions settings calculation for generator and step-up transformer in HPP Zakucac
The paper deals in detail with the problem of calculating and selecting the parameters for setting the protection functions of the …
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Dynamic and Pole-Zero Analysis of Self-Excited Induction Generator Using a Novel Model with Iron Losses
In this paper, we propose and analyze a novel self-excited induction generator (SEIG) dynamic model with iron losses. The iron losses …
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Differential protection of autotransformer with tertiary winding
The paper deals with the implementation of stabilized (longitudinal) differential protection of autotransformers with a tertiary …
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Day-Ahead Prediction of Electric Power Demand Using Neural Networks
The paper provides an overview of the possibilities of applying neural networks to the problem of electricity consumption forecasting. …
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Concept for new Croatian Grid code for transmission network
Based on the existing Grid Codes of the Electricity System and the practice of other countries, the paper presents a proposal for the …
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Causal Connection of Non-Specific Low Back Pain and Disc Degeneration in Children with Transitional Vertebra and/or Spina bifida occulta: Role of Magnetic Resonance – Prospective Study
The problem of low back pain (LBP) in children is very common and many specialists are dealing with it in everyday practice. The cause …
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Beginner's textbook for piano teacher - bridge between teachers, instrument and students
In their work, piano teachers use piano primers, the content of which they present to students. Piano beginners books are bridges …
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Assessment of the backflashover occurrence rate on HV transmission line towers
An assessment of the backflashover occurrence rate on the high voltage (HV) transmission line towers is presented in this paper. It is …
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Assessment of lightning current parameters suitable for wind turbine overvoltage protection analysis
A selection procedure for determining the lightning current parameters, suitable for wind turbine overvoltage protection analysis, will …
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Antenna Model of Wind Turbine Struck by Lightning
The paper deals with an analysis of direct lightning strike to the wind turbine using thin wire antenna theory. Wind turbine is …
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Analysis of Lightning Surge Transference Through Three-Phase Step-Up Transformers
Analysis of transformer behavior due to different transient phenomena is of paramount importance, not only from the designer’s …
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An optimal electricity allocation model for sustainable resource use in India
Energy demand is increasing rapidly because of developments in the agricultural, industrial, commercial and transportation sectors. …
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A Systematic Approach to a Time Series Neural Model Development for River Flow Forecasting
This paper aims to apply a systematic approach to a time series neural model development procedure. The model is developed for flow …
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A review of solar drying technologies
Agricultural products such as coffee, tobacco, tea, fruit, cocoa beans, rice, nuts, and timber generally require drying through a …
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A review of climate change, mitigation and adaptation
Global climate change is a change in the long-term weather patterns that characterize the regions of the world. Scientists state …
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A hybrid algorithm for computation of rectangular conductor internal impedance
A hybrid algorithm for the computation of rectangular conductor per unit length internal impedance is developed. Up to a switching …
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A characteristics-based finite element method for transmission line problem
This paper presents a numerical model of transmission line equations based on a combination of the finite element method and the …
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Wind power plant as ancillary service provider
Rapid growth of wind power sector presents great challenge for power system operators in aspect of generation scheduling, grid …
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Voltage profile analysis in 30 kV network after connection of wind power plant
Maintaining voltage level within permitted range is one of the most important factors regarding power supply qualityand normal power …
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Traffic Load Influence on Power Consumption of GSM and UMTS Base Stations
It has been shown that the base stations represent main contributor to the energy consumption of a mobile cellular network. Since …
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Time-harmonic current distribution on conductor grid in horizontally stratified multilayer medium
This paper presents a novel time-harmonic electromagnetic model for determining the current distribution on conductor grids in …
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Time Domain Analytical Modeling of a Straight Thin Wire Buried in a Lossy Medium
This paper deals with an analytical solution of the time domain Pocklington equation for a straight thin wire of ¯nite length, buried …
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The impact of wind power plants on slow voltage variations in distribution networks
The connection of a wind power plant to a distribution network affects the voltage conditions in that part of the network. However, …
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The difference between voltage and potential difference
In this paper some basic terms such as voltage and potential difference are presented. In many cases they are regarded as identical …
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Testing of electrical conductivity of bentonite „Bentoplast 20“ Petrokemija d.o.o. Kutina
Due to the accessibility of bentonite and its relatively good properties, bentonite grounding mat is most often used in our region to …
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Systems for lightning detection and location
The paper presents an analysis of methods and systems for detecting and locating lightning strikes, with an emphasis on LINET and NLDN …
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Semiconductor nanowires and their field-effect devices
Semiconductor nanowires have attracted significant attention in the last decade for their potential in improving existing or enabling …
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Selection of generator star-point grounding resistance in HPP Zakucac
The paper presents a computer analysis based on which the appropriate value of the high-voltage high-ohmic active resistor for …
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Selection of current transformers on the tertiary of the 150 MVA autotransformer in HPP Zakucac
In the paper, the calculation and selection of technical data of current transformers on the tertiary of the network transformer 150 …
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Segmentation of overhead power line conductors for 3D electric and magnetic field computation
A numerical algorithm for segmentation of overhead power line span conductors for 3D electric and magnetic power frequency field …
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RISK ANALYSIS OF WIND POWER PLANT PROJECT FINANCIAL PARAMETERS EVALUATION
In this paper, the basic financial risks in the development of the wind farm project were discussed. The construction project of a wind …
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Report on geoelectrical characteristics of the soil at the site TS 110/10(20) kV Zadar istok
An important prerequisite for the correct and economical dimensioning of earthing conductors is knowledge of the geoelectric properties …
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Preliminary grid connection analysis and solution for WPP Crno brdo
The study deals with and selects the method of connecting the Crno Brdo wind farm to the 110 kV transmission network or the 30 kV …
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Power system relay protection
The material provides information on the design and calculation of relay protection settings in the power system. The selection of …
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Parametric Analysis of Lightning Stroke Incidence to HV Transmission Line Towers
A parametric analysis of lightning stroke incidence to high voltage transmission line towers is presented in this paper. It is based on …
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Parameter calculation for the relay protection of network transformer 220/110 kV, 150 MVA in HPP Zakucac
The paper describes the calculation and selection of parameters of the relay protection system of the network transformer 220/110 kV, …
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P-doping Mechanism in Catalyst-free MBE Grown GaAs Nanowires
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Overvoltage protection selection for generators A, B, C and D in HPP Zakucac
The paper presents a computer analysis based on which the specific overvoltage protection of new generators in the Zakucac HPP was then …
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On the relationship between scientific and theological aspects of the work of Roger Joseph Boscovich
In this paper, an overview of philosophical and theological heritage of Roger Joseph Boscovich in the framework of his impressive …
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Numerical Analysis of the Magnetic Field of High-Current Busducts and GIL Systems
This paper presents a numerical computation method for determining the magnetic field of high-current busducts of circular …
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Novel dynamic model of self-excited induction generator with iron losses
In this paper, we propose a novel dynamic model of a self-excited induction generator (SEIG), in which the iron losses are included and …
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Modified GPC Controller for Control of Processes with Long Dead-Time and Integral Action
Processes with dead time are the processes with time lags between output and input. Time lags aggravate control by reducing the phase …
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Least squares estimation of Heidler function parameters
The aim of the proposed paper is to present an effective numerical algorithm for the computation of Heidler function parameters. The …
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High voltage engineering fundamentals
The material provides information on: basic physical properties of insulating materials: phenomenology of flashover and breakdown of …
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Ground impedance of cylindrical metal plate buried in homogeneous earth
Grounding systems of various shapes can be approximated by a cylindrical metal plate. Highly accurate expression for the metal plate …
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Full Wave Model versus Transmission Line Representation of Tesla’s Wave Propagation: 155th Anniversary of Birth of Nikola Tesla
The paper deals with two models of Tesla’s propagation concept of wireless transmission of energy. A transmission line (TL) …
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Frequency domain boundary element versus time domain finite element model for the transient analysis of horizontal grounding electrode
The paper deals with two different approaches to the assessment of the transient impedance of a horizontal grounding electrode: …
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Frequency domain analysis of coupled nonuniform Transmission line using the finite element method
This paper presents a finite element frequency domain model for numerical solution of coupled nonuniform transmission line (NTL) …
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Forecasting of Coal Consumption Using an Artificial Neural Network and Comparison with Various Forecasting Techniques
The forecasting of energy consumption is essential for any country to study its future energy demand and to formulate necessary …
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Finite elements and the method of characteristics applied to a transmission line problem
This paper presents a numerical model of transmission line equations based on a combination of the finite element method and the …
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FETD computation of the temperature distribution induced into a human eye by a pulsed laser
In this paper we present the three-dimensional finite element time domain model of the human eye exposed to pulsed holmium: YAG laser …
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Engineering models of the lightning return stroke current
The paper analyzes the problem of modeling lightning strike current for the purpose of determining the radiated electromagnetic field …
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EMTP-RV Model of Hydraulic Digital Governor
This paper presents EMTP-RV model of hydraulic digital governor. Based on block scheme of a digital turbine control system, a novel …
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Electromagnetic Field Coupling to Multiple Buried Thin Wires - Antenna model versus transmission line approach
The paper deals with two different approaches for the analysis of electromagnetic field coupling to finite length buried conductors …
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Distribution of single-pole short-circuit currents in passive elements of multy-cable systems
The paper presents a mathematical model for analyzing the distribution of single-pole short-circuit currents (SCC) in passive parts …
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Differential protection function of RET670 numerical protection relay
The paper describes in detail the function of the differential protection of the numerical relay device type RET670 of the company ABB. …
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Concept design and variants for construction of transformer station 110/x kV Zamošće
The purpose of this report is to review the basic variants of the construction and connection of the new TS 110/x Zamošće. The …
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Comparison of different metal oxide surge arrester models
Two methods for modeling metal oxide surge arresters are presented and compared: the IEEE Working Group 3.4.11 surge arrester model and …
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Comparison of different metal oxide surge arrester models
Two methods for modeling metal oxide surge arresters are presented and compared: the surge arrester model proposed by IEEE Working …
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Comparison of analytical and boundary element modeling of electromagnetic field coupling to overhead and buried wires
The paper deals with various approaches for the analysis of electromagnetic field coupling to horizontal straight line of finite length …
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Comparison of 2D algorithms for the computation of power line electric and magnetic fields
Three different two-dimensional (2D) algorithms for the computation of the electric fields of both overhead power lines and buried …
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Analysis of wind farm temporary overvoltages in regards to surge arrester selection
A wind farm consists of several individual wind turbines, interconnected into a single electrical network. The surge protection of the …
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Analysis of the possibility of series reactor interpolation in OHL 110 kV Meterize-Vrboran
As part of this study, the following was given: - basic analysis of the application of a series choke on DV 110 kV Meterize-Vrboran in …
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Analysis of shielding failure flashover rates for HV transmission lines
This paper will present an analysis of the expected number of outages of a HV transmission line, which are the result of direct …
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Analysis of shielding failure flashover rates for HV transmission lines
The paper describes the issue of determining the expected number of shielding failure flashover rates (SFFOR) on HV overhead lines …
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Analysis of mutual electromagnetic influences between adjacent triplets of high-current generator busducts in HPP Zakucac
The paper develops a mathematical model for the analysis of electromagnetic effects of close triples of generator shielded lines. The …
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Analysis of conditions at disconnected SCC triplet of the double cable line
The paper presents analyses of current and voltage states in the screens of a disconnected triplex of single-core cables – and due to …
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Analysis and selection of current and voltage transformers for reconstruction of HPP Zakucac
The paper presents the calculations and selection of parameters of current and voltage transformers of the generator voltage level of …
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Accuracy of approximate formulas for internal impedance of tubular cylindrical conductors for large parameters
Exact formulas for internal impedance per unit length of tubular cylindrical conductors energized by time-harmonic current involve …
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A stand-alone induction generator with improved stator flux oriented control
This paper presents an improved stator flux oriented (SFO) control system for a stand-alone induction generator. The induction …
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A review of solar photovoltaic technologies
Global environmental concerns and the escalating demand for energy, coupled with steady progress in renewable energy technologies, are …
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A review of renewable energy based cogeneration technologies
A major focus of the current energy debate is how to meet the future demand for electricity. Conservation in buildings and industry, …
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A Review of Current Issues in State-of-Art of Wind Farm Overvoltage Protection
This paper elaborates on several important outstanding issues in the state-of-art of overvoltage protection selection for modern wind …
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2D computation and measurement of electric and magnetic fields of overhead electric power lines
In this paper a 2D numerical algorithm is presented for the computation of electric and magnetic fields of power lines. The numerical …
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Wind Farm Surge Arresters Energy Capability and Risk of Failure Analysis
This paper presents the analysis of the wind farm surge arresters energy capability in respect to lightning overvoltages. Furthermore, …
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VOLTAGE PROFILE ANALYSIS IN 30 KV NETWORK AFTER CONNECTION OF WPP ORLICE
Among the most important factors that affect the quality of electricity supply and the orderly operation of the power system is …
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Tuning voltage controller of synchronous generator
One of the important elements of the power system is the synchronous generator. In order to continuously supply the power system with …
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Transient EMF Induced in LV Cables due to Wind Turbine Direct Lightning Strike
This paper presents a novel, easy to use, engineering method for determining the transient electromotive force (EMF) induced in …
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Transient analysis of ring shaped grounding electrode using isoparametric quadratic elements
The paper deals with transient analysis of ring shaped grounding electrodes using isoparametric quadratic elements. The formulation in …
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Time domain finite element method analysis of multi-conductor transmission lines
This paper presents the finite element time domain (FETD) model for numerical solution of the multi-conductor transmission line (MTL) …
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Time domain analytical modeling of finite length thin wire embedded in homogeneous lossy medium
This paper deals with the analytical solution of the time domain integro-differential Pocklington equation for a straight, finite …
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Time domain analytical modeling of a horizontal wire buried in a lossy medium
As part of the dissertation, an analytical solution was developed for the transient response of a thin wire of finite length buried in …
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Testing geoelectrical and geothermal characteristics of the soil at the location of wind farms Jelinak
For the design of large wind farms, high-quality design data is necessary. The electrical resistance of the soil is used to calculate …
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Technical end economic basis for high penetration of renewables into Croatian power system
Croatia’s energy strategy is set in line with European trends in the pursuit of a significant increase in the share of …
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Study on ancillary services for power system
In this paper, a large number of issues are analyzed and concrete proposals are given related to the definition of technical …
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Stator Resistance Identification based on Neural and Fuzzy Logic Principles in an Induction Motor Drive
This paper presents a method for stator resistance identification of an induction motor in an indirect rotor field oriented control …
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Stability Analysis of Three-Phase PWM Converter with LCL Filter by Means of Nonlinear Model
In this paper the stability problem of the three phase PWM converters with LCL filter without additional passive or active damping is …
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Spatially resolved Raman spectroscopy on indium-catalyzed core–shell germanium nanowires: size effects
The structure of indium-catalyzed germanium nanowires is investigated by atomic force microscopy, scanning confocal Raman spectroscopy …
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Solution of Electromagnetic Compatibility Problem in Electrical Power Network using the Finite Element Method
In overall expansion of power distribution and sub-transmission (10 kV - 110 kV) networks, conditioned with growing consumption of …
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Simulation of aggregate wind farm short-term production variations
The variability of wind power production poses the greatest challenge in the integration of large scale wind power in power systems. …
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Short circuit analysis for the WPP Jelinak
The subject of this study is the calculation of the short circuit of the Jelinak wind power plant for the planned condition of the …
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Selection of instrument transformers and preliminary calculation of relay protection settings for the 110 kV substation in TS Jelinak
The paper presents the calculation and selection of parameters for current and voltage measuring transformers for the 110 kV plant at …
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Report on geoelectrical and geothermal soil properties along the route of the 110 kV cable Peljesac Korcula
All essential characteristics of the earthing conductor (distribution resistance, potential gradients, applied potential, etc.) …
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Preliminary grid connection analysis and solution for WPP Visoka
The study deals with and selects the method of connecting the Visoka wind power plant to the 110 kV transmission network or the 30 kV …
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Preliminary grid connection analysis and solution for WPP Opor
The study deals with and selects the method of connecting the Opor wind farm to the 110 kV transmission network or the 30 kV …
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Preliminary grid connection analysis and solution for WPP Ljubač
The study examines and selects the method of connecting the Ljubač wind power plant to the 110 kV transmission network or the 30 kV …
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Preliminary grid connection analysis and solution for WPP Kozjak
The study examines and selects the method of connecting the Kozjak wind farm to the 110 kV transmission network or the 30 kV …
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Preliminary grid connection analysis and solution for WPP Čemernica
The study deals with and selects the method of connecting the Čemernica wind power plant to the 110 kV transmission network or the 30 …
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Preliminary feasibility analysis for WPP Mikanovci with grid connection solution and techno-economic/spatial data
In the study, a preliminary analysis of the justification of the construction of the Mikanovci wind farm and the connection to the …
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Power Loss Computation in High-current Generator Bus Ducts of Rectangular Cross-section
Due to the medium voltage level of generator terminals and very high-current output, generator connection to the step-up transformer is …
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Planning and development of the medium voltage distribution grid in the area Elektra Šibenik for the following 20 years
In this study, a proposal for the development of the distribution network is given based on the current situation and the forecasted …
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Performance, reliability and failure analysis of wind farm in a developing Country
In this paper, an analysis of the performance, failure and reliability, as well as a spare parts analysis have been conducted for a …
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Parametric analysis of lightning currents incident to modern wind turbines
The paper presents the phenomenology of upward and downward (positive and negative) lightning strikes. The problem of determining …
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P-Doping Mechanisms in Catalyst-Free Gallium Arsenide Nanowires
Doped catalyst-free GaAs nanowires have been grown by molecular beam epitaxy with the gallium-assisted method. The spatial dependence …
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Overvoltage protection and surge arrester selection for TS Jelinak and 12 kV cable network
The paper presents an analysis of the overvoltage protection of the Jelinak wind farm, including the associated 12 kV cable network, …
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Optimal technical solution for transmission grid connection of WPP Jelinak
As part of this study, the technical and energy requirements that the wind power plant must fulfill in order to obtain approval for …
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Optimal technical solution for transmission grid connection of WPP Glunča
As part of this study, the technical and energy requirements that the wind power plant must fulfill in order to obtain approval for …
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Optimal technical solution for transmission connection of HPP Zakučac after reconstruction and capacity increase
By elaborating on the optimal technical solution for increasing the connected HE Zakučac on the existing connection, we want to …
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Modelling of the backflashover
The paper presents the method of modeling the occurrence of backflashover on HV overhead lines (transmission lines) using the EMTP …
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Modeling of Saturated Synchronous Generator Based on Steady-State Operating Data
This paper deals with modeling of the saturated salient-pole synchronous machines using analytical saturation model obtained based on …
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MCMC simulation of wind speed time series
Power system design issues require stochastic simulation methods in order to derivate synthetic time series for the stochastic source …
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Lightning Incidence of Wind Farm Underground Power Cable Networks
This paper presents a general procedure for the estimation of the lightning incidence of underground power cable networks, in this …
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Grid connection options and risks for WF Bradarica kosa and WF Kocinje brdo
Grid connection options and risks for WF Bradarica kosa and WF Kocinje brdo
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Generalized Equations for Fault Voltages and Currents in Neutral Conductors of Underground Multi-Cable Power Lineswith Earthing Wires Laid Alongside
U radu je prezentirana opca anliticka metoda proracuna napona i struja kvara niskih frekvencija duz neutralnih vodica u kabelskim …
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FEM analysis of electromagnetic transients in nonlinear networks
The aim of the paper is to present a numerical procedure based on the finite element method (FEM) in the time domain when modeling …
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Exponential approximation of the Heidler function for the reproduction of lightning current waveshapes
In this paper the lightning current function proposed by Heidler is approximated by a linear combination of exponential functions in …
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Energy efficient fuzzy based combined variable refrigerant volume and variable air volume air conditioning system for buildings
Energy conservative building design has triggered greater interests in developing flexible and sophisticated air conditioning systems …
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Development of synchronous generator saturation model from steady-state operating data
A new method to estimate and model the saturated synchronous reactances of hydroturbine generators from operating data is presented. …
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Development and characterization of EIS structures based on micro and nano SiO2 pores before and after its functionalization with silanes and phosphonate films
In this work electrolyte–insulator–semiconductor (EIS) structures based on lithographically fabricated Si–SiO2 micropillars and pores …
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Detection of Broken Rotor Bar in Squirrel-Cage Induction Machines Using Stator Zero-Components
In this paper a method for the broken rotor bar fault detection of induction squirrel cage machines is presented. This method is based …
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Definition and computation of cylindrical conductor internal impedance for large parameters
Exact formulas for internal impedance per unit length of solid and tubular cylindrical conductors energized by time-harmonic current …
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CONNECTION OF LARGE PHOTOVOLTAIC POWER PLANTS ON DISTRIBUTION NETWORK
Over the past few years, the increase in the installed capacity of photovoltaic power plants in the world has been around 50% per year. …
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Computation and overvoltage protection selection for the Wind Farm Crno Brdo
The paper presents analyses and numerical calculations of overvoltage conditions of the Crno Brdo wind farm system. This study also …
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Chowdhuri-Gross model of transmission lines induced voltages
The paper presents the theoretical background of the so-called of the Chowdhuri-Gross model for the analysis of overvoltage conditions …
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Calculation of grounding effects of bare conductors laid alongside underground multi-cable power lines by using analytical equations
U clanku je predstavljen matematicki model odredivanja raspodjele struje kvara i potencijala u vodicima elektricne zastite energetskih …
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Assessment of Lightning Stroke Incidence to Underground Power Cables
An assessment of lightning stroke incidence to underground power cables is presented in this paper. It needs to be acknowledged that …
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Assessment of Lightning Stroke Incidence to Modern Wind Turbines
An assessment of lightning stroke incidence to modern wind turbines will be presented in this paper. Wind turbines present tall …
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Assessment of Lightning Current Parameters Suitable for Analysis of HV Substation Overvoltage Protection
This paper will present theoretical and mathematical background of the process which aims at evaluation of lightning current parameters …
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Analytical versus boundary element modelling of horizontal ground electrode
Different approaches to the analysis of horizontal ground electrode, based on the wire antenna theory have been used in this work. The …
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Analysis of an Enhanced SEIG Model Including Iron Losses
This paper presents an enhanced dynamic model of a self-excited induction generator (SEIG) with iron losses. The iron losses are …
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An EMTP Model for Lightning Surge Analysis of Wind Farms
Wind farms usually occupy large areas with high wind incidence, which often coincide with high keraunic levels and high relative soil …
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An EMTP Extension for Computing Earthing System Transient Step and Touch Voltages
This paper presents a novel technique for computing dangerous voltages due to lightning transients imposed on earthing system, which is …
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Alternative grid connection solutions for wind power plant locations owned by EHN d.o.o. in Split-dalmatia couty
In the study, a preliminary analysis of the justification for the construction of a hydropower plant owned by the company EHN d.o.o. …
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Accuracy of the Inverse Fast Fourier Transform algorithm in grounding grid transient analysis
In this paper, accuracy of the Inverse Fast Fourier Transform (IFFT) algorithm is analysed, when used to compute the potential …
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A Review of Statistics on Lightning Currents in Relation to the Lightning Incidence of New-Generation Wind Turbines
This paper provides a review of current issues, pertaining to the statistical depiction of lightning currents and in relation to the …
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A review of solar thermal technologies
The use of solar energy in recent years has reached a remarkable edge. The continuous research for an alternative power source due to …
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Typification of earthing of medium voltage networks
The task of this thesis was to study and describe the issues of grounding medium voltage networks, taking into account domestic and …
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Transient analysis using the program package PSCAD
The description of the EMTDC program, the method of modeling electrical networks, and the advanced features of the EMTDC program are …
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Time domain modeling of a thin wire in a two-media configuration featuring a simplified reflection/transmission coefficient approach
The paper deals with a transient analysis of a straight thin wire in a presence of a two-media configuration using a simplified …
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Thermal Modelling of the Human Eye exposed to Infrared Radiation of 1064 nm Nd:YAG and 2090 nm Ho:YAG Lasers
In the last few decades laser eye surgery has been implemented in various ophthalmic procedures. The most important issue with laser …
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The human body exposed to a magnetotherapy device magnetic field
This paper deals with human exposure to extremely low frequency (ELF) magnetic fields generated by a magnetotherapy device. The problem …
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Temperature Control in a Closed Space Environment by using a PLC
The paper presents a digital system for temperature control in a closed space with a volume of 4 dm3 using a PLC (programmable logic …
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Synchronous hydro-generator parameter identification based on on-line measurements
This dissertation defines a methodology for identifying the parameters of a synchronous hydrogenerator during operation, based on …
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Solution of the power supply of the tunnel TS 10/0.4 kV during remediation of the PS HPP Velebit, HPP Orlovac and HPP Zakucac intake tunnels
The paper presents a solution for the power supply system of the tunnel substation 10/0, 4 kV, which can be uniformly applied in the …
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Software package EarthCAD Ver. 1.6
The EarthCAD software package consists of two units that exchange information with each other. The first unit consists of a part of the …
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Ship electrical systems
The task of this paper was to describe ship electrical systems, so the ship was considered as a separate electrical power system. The …
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Sensorless speed detection of squirrel-cage induction machines using stator neutral point voltage harmonics
In this paper a sensorless speed detection method of induction squirrel-cage machines is presented. This method is based on frequency …
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Selection of the grounding method of the MV network 10(20) kV supplied from the TS 110/10(20) kV Srd
The study provides detailed analyses and appropriate calculations on which the proposal for selecting the grounding method for the MV …
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Rotor resistance identification in an IRFO system of a saturated induction motor
This paper presents a novel method for the rotor resistance identification of an indirect rotor field oriented (IRFO) control system of …
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Risk assessment of occurring damage caused by a lightning strike in a residential building
This thesis describes the problem of assessing the risk of damage from lightning strikes and based on this, results were obtained using …
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Risk assessment of lightning stroke produced damage using the program DEHNsupport
The thesis describes the problem of assessing the risk of damage from lightning strikes and based on this, results were obtained using …
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Report on the heat resistance of the bedding material 110kV cable (Kremeni pijesak Pjescara Jerovec)
The transmission power and lifespan of energy cables, and thus the quality and reliability of the consumer’s power supply, …
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Renewable energy sources of Croatian motorways
Croatian Motorways has launched its action plan to promote the market penetration of renewable energy sources (RES), according to which …
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Relay protection settings calculation for the TS 110/10(20) kV Srd
The paper presents the analysis and calculation of relay protection parameter settings in the 110/10(20) kV Srd substation.
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Rationalization and application of renewable energy sources in legislation of designing
The use of renewable energy sources on new sections of motorways in the Republic of Croatia has been verified by the registered project …
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Questionable superiority of alternative air terminals
Recently, there has been great pressure from manufacturers and sellers of non-classical (active) lightning protection systems to have …
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Protection of wind power plants and the connected cable from lightning stroke
Renewable sources play an increasingly important role in global energy production. Wind farms are a desirable form of alternative …
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Protection from static electricity
In this paper, the task was to describe the basic theoretical assumptions of static electricity. In the theoretical background, we …
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Primary and secondary chemical sources of electric energy
The task of this paper is to classify chemical sources of electrical energy and briefly describe the basic characteristics of primary …
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Preliminary power grid connection analysis of the WPP KPA
The study deals with and selects the method of connecting the Krš Pađene wind power plant to the transmission grid, and examines the …
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Preliminary design for distribution network connection of PV plant Stankovci
The subject of the elaboration is the assessment of the possibility of connection to the power grid of the Stankovci solar power plant …
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Power system fault studies using finite element technique
This paper proposes new and non-traditional approaches for power system fault calculations. The numerical algorithm is based on a …
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Point current source in a multilayer medium
The first step in the work was to solve the theoretical basis for the fixed method. This method previously required the formulation of …
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Phase change characteristic study of spherical PCMs in solar energy storage
This paper investigates the phase change behavior of 65 mol% capric acid and 35 mol% lauric acid, calcium chloride hexahydrate, …
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Over-voltage protection of low-voltage overhead line
This thesis examines the issue of overvoltage protection of low-voltage networks. The emphasis of the work was on the selection of …
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Optimization of a Cascade Control System with a Separately Excited DC Motor
Cilj ovog rada je optimirati sustav regulacije brzine vrtnje istosmjernog motora s nezavisnom uzbudom primjenom tehnickog i simetricnog …
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Optimal technical solution for distribution network connection of PV plant Stankovci
The subject of the elaboration is the assessment of the possibility of connection to the power grid of the Stankovci solar power plant …
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Numerical model of 2D non-linear time-harmonic eddy-current problem based on FEM
The paper deals with formulation of 2D non-linear time-harmonic eddy-current problem using eight-node quadrilateral isoparametric …
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Numerical approximation of the lightning current function
In this paper the lightning current function proposed in IEC 62305-1 is approximated by a linear combination of exponential functions …
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Medium voltage electric power systems in ships
In this paper, the task was to describe the basic features of the medium-voltage shipboard electrical power system used on large ships …
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Measurement of electromagnetic parameters of earth
The first chapter briefly describes the topic of this thesis. The electromagnetic properties of soil are listed and their values ​​in …
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Magnetic induction close to the overhead transmission line
The paper covers the calculation of the magnetic induction distribution in the environment of a 110 kV overhead transmission line using …
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Influence of Saturation on On-Line Estimation of Synchronous Generator Parameters
This paper discusses on-line estimation of rotor body parameters of the synchronous hydro-generator under saturated condition. A new …
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Human Equivalent Antenna Model for HF Exposures: Analytical versus Numerical Approach
In this paper, the human exposure to HF radiation is analyzed using the simplified human equivalent antenna model featuring analytical …
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Grounding system of industrial facilities
The task of the thesis is to describe the characteristics of grounding systems of industrial plants. The first chapter of the thesis …
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Grounding of the neutral point of distribution networks
The aim of the thesis was to determine the main uses and methods of the grounding system and to present the basic reasons for and …
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Grounding Grid Analysis: Historical Background and Classification of Methods
This paper presents a review of the most important methods available for the grounding grid analysis. This includes numerical methods …
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Generalized form of Telegrapher’s Equations for the Electromagnetic Field Coupling to Buried Wires of Finite Length
In this paper, a generalized form of telegrapher’s equations for electromagnetic field coupling to buried wires is derived. The …
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FEM vs. Modal Method in the MTL Analysis
The aim of this paper is to present a new numerical model for multi-conductor transmission line (MTL) analysis in frequency– domain. …
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FEM analysis of electromagnetic transients in linear networks
This paper describes a new general solution method when modeling electromagnetic transients in single networks with linear lossy …
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FEM analysis for MTL problems in frequency domain
The aim of this paper is to present a new approach for multiconductor transmission line (MTL) analysis in frequency– domain. Exact MTL …
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Fast assesment of infeed constants for the distant protection settings calculation
The paper deals with the issue of determining intermediate supply coefficients greater than unity. These intermediate supply …
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External Thermal Resistance of a Touching Cables in Flat Formation
The paper calculates the permissible current carrying capacity of a cable line with electrical protection made of copper wires and a …
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Estimation of Electric Arc Furnace Influence upon Flicker and Voltage Harmonics Distortion at Point of Common Coupling
The paper presents a procedure for assessing the influence of an electric arc furnace on voltage flicker and harmonic distortion at the …
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Electromagnetic bond between the electric power system and the telecommunication system
The aim of the thesis was to describe the problem of electromagnetic coupling between the power and telecommunications systems in the …
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Electrical safety of a electric power facility grounding system
The first chapter presents the basic problems and dangerous situations in safety measures and grounding, and describes the …
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Electrical energy quality measurement using Fluke 435
This final paper explains, based on available literature, why the quality of electricity is important and how to check its quality. …
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Efficiency assessment of the external lightning protection system
This paper presents an algorithm for the efficiency assessment of the lightning protection system of the buildings and electric power …
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Development of an expert system for optimization of the electric power system of Croatian motorways
In addition to the construction of new sections of highways in the Republic of Croatia, new electric power facilities (EEO) were also …
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Development of an algorithm for an exponential approximation of the lightning current
In this paper, the lightning current in the time and frequency domains is described using the Heidler function, where the function is …
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Determination of the power cables system reduction coefficient matrix
The paper presents the original theoretical foundations of the mathematical model for determining the reduction coefficient matrix of a …
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Coupling from HF Transmitter to Power Line Communications System using Antenna Theory - Analytical versus Numerical Approach
Antenna model of a straight power line has been presented in the paper. The power line, as a part of Power Line Communication (PLC) …
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Coordination of isolation with regards to the selection of surge arresters
Based on the available literature, this paper deals with the topic of insulation coordination from the point of view of selecting surge …
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Controlling process with large dead time and integral disturbance
Dead-time processes are processes in which there is a time lag between the output and input process quantities. The time lag of the …
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Control of an induction motor fed by an industrial frequency converter
U ovom radu se razmatra upravljanje asinkronim motorom, u rezimu konstantnog omjera napona i frekvencije statora, primjenom …
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Computation of the power line electric and magnetic fields
This paper presents a novel numerical algorithm for computing of the power line electric and magnetic fields. Phase conductor currents …
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Computation of the electromagnetic compatibility of 110 kV GIS and associated cables in the TS 110/20(10) kV Srd
The study conducted a detailed analysis of the electromagnetic compatibility of the 110/20(10) kV Srd substation. A numerical …
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Computation of grounding pipe parameters
The paper presents an overview of the available results of geotechnical investigations that precede the construction of substations of …
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Comparison of expressions for computation of per unit internal conductor impedance
In this paper, one-dimensional and two-dimensional calculations for the unit internal impedance of a rectangular conductor are …
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Chief designer, project coordinator or knowledge engineer in planning and designing substations and installations in traffic
On new sections of highways in the Republic of Croatia, new facilities and installations were built for the purpose of traffic safety. …
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Cathode protection of metal masses
In this paper, the task was to describe the basic principles of a cathodic protection system. In the second chapter, we explained: …
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Calculation of maximum current that raises the potential of Orlovac power plant during single-phase short cicuit using finite element technique
This paper presents an algorithm for calculating short circuits in a power system using the finite element technique. The elements of …
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Atmospheric over-voltages induced on electric power lines and low-voltage systems
This paper describes the phenomenon of induced atmospheric overvoltages on power lines and low-voltage systems and protection against …
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Application of EMTP software package in lightning surge analysis
The paper describes the software package EMTP, which is used for transient analyzes in the power system. Special emphasis was placed on …
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Analysis of the Temperature Distribution to the Human Eye Exposed to Laser Radiation
The objective of this thesis is to study the time dependent temperature field of the human eye exposed to laser radiation. The …
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Analysis of the influence of 110 kV cable connection of the TS 110/20(10) kV Dugopolje on neighboring telecommunication lines
The paper presents an analysis and associated numerical calculations of the electromagnetic impact of the 110 kV cable connection TS …
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Analysis of overvoltage protection efficiency of low-voltage overhead power lines with self-supporting cable bunch
The issue of protecting low-voltage networks from the harmful effects of atmospheric overvoltages is very poorly represented in …
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Analysis of new electric arc furnace influence in steel-plant CMC Sisak upon voltage quality at point of common coupling.
In this study, the influence of the 60 MVA electric arc furnace, which is planned to be installed in the CMC Sisak steel plant, on the …
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Analysis of induced voltages of double-feed transmission line system regarding to safety demands
The safety of the operator of the disconnected three-way dual-system line directly depends on the amount of induced voltages at the …
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Analysis of Hydroturbine Synchronous Generator Saturation Characteristics Based on Steady-State Measurements
The paper describes the procedure for modeling the saturation of the main magnetic circuit of a synchronous hydrogenerator, which is …
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An Improved Formula for External Thermal Resistance of Three Buried Single-Core Metal-Sheathed Touching Cables in Flat Formation
An improved formula for the assessment of the external thermal resistance of three burried single-core, metal-sheathed, touching …
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Allowed current load of the cable in trefoil formation
The paper calculates the permissible current carrying capacity of a medium-voltage cable line, insulated with cross-linked …
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Advanced algorithm development for transformation from the frequency domain into the time domain
The thesis deals with the problem of calculating the potential distribution at a certain distance from a point impulse charge as well …
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A review of methods for grounding grid analysis
This paper presents a brief review of the most important methods available for the grounding grid analysis. This includes numerical …
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A Novel Algorithm for Internal Impedance Computation of Solid and Tubular Cylindrical Conductors
Computation of the internal impedance per unit length of solid and tubular cylindrical conductors, energized by time-harmonic current, …
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A necessity for a modification of the Technical rules for the lightning protection of structures
The Technical Regulation for Lightning Protection Systems for Buildings was adopted in 2008. Already at the very beginning of its …
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A micron-sized nanoporous multifunction sensing device
In this work, a capacitive sensor based on Anodic Aluminium Oxide (AAO) porous structures has been developed. In some cases, the pores …
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A Half Bridge Inverter with ultra fast IGBT Transistors
The paper analyzes the operation of a single-phase inverter in a half-bridge connection with ultra-fast IGBT transistors and flyback …
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A Half Bridge Inverter with Ultra Fast IGBT Module-Modelling and Experimentation
This paper presents an operation analysis of the single-phase half bridge inverter with the ultra fast IGBTs (Insulated Gate Bipolar …
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3D FEM Temperature Distribution Analysis of the Human Eye Exposed to Laser Radiation
This paper is an extension of a previously published work on thermal modelling of the human eye exposed to radiation by various lasers. …
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'Doping of catalyst-free MBE grown GaAs nanowires, transport properties and related devices
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Wind power portfolio assessment for HEP OIE d.o.o.
The aim of this study is to assess the existing portfolio of wind power projects developed by companies on the domestic market from the …
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Wind power portfolio assessment for E.H.N
The aim of this study is to assess the existing portfolio of wind power projects developed by companies on the domestic market from the …
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Transient current point source in multilayer medium
This thesis deals with the problem of a point source of harmonic current in a multilayer horizontally complex medium, where the first …
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Transient analysis of coordinated overvoltage protection
The protection of electrical devices, elements of electrical installations and even the entire electrical power system is a very …
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Time-harmonic and transient linear circuit analysis using finite element technique
This paper proposes a new and non-traditional approach for time-harmonic and transient linear electrical circuit analysis. The …
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Thermal Modelling of the Human Eye Exposed to Laser Radiation
Nowadays, various lasers are widely used in medical surgery procedures involving the human eye. The most important issue with laser eye …
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Theoretical explanations and characteristics of ball lightning
Ball lightning is a rare and for now very difficult to explain phenomenon. In order to be able to understand the origin and nature of …
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The research protocol geoelectrical soil properties at 110 kV cable route Pehlin-Turnic
An important prerequisite for the correct and economical dimensioning of the earth electrode is knowledge of the geoelectric properties …
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The research protocol geoelectrical characteristics of the soil at the site of future TS 110/10 (20) kV-Podi-Sibenik
An important prerequisite for the correct and economical dimensioning of the earth electrode is the knowledge of the geoelectric …
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The basic grid connection solution for wind power plants: Čemernica, Visoka, Opor and Perun
The study deals with and selects the method of connecting the Čemernica, Visoka, Opor and Perun wind farms to the 110 kV transmission …
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Testing of earthing system on the Donji horizont RHE Velebit
This study includes measurements and analysis of the characteristics of the grounding system in the area of ​​the dam, sluice chamber, …
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Technical and economic aspects of small hydropower plants in market conditions
Investing in small hydropower plants can be extremely profitable. With careful planning and high-quality use of water potential, …
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Study of the 110 kV cable line Pehlin – Turnic electromagnetic influence onto the telecommunication lines
In the paper, a numerical analysis of the electromagnetic influence of the two-system cable connection 110 kV Pehlin – Turnic on nearby …
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Study of the 110 kV cable line Pehlin – Turnic electromagnetic influence onto the metal masses and installations
The paper presents a numerical analysis of the electromagnetic impact of the 110 kV Pehlin – Turnic two-system cable connection on …
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Stochastic assessment of external LPS of structures
This paper presents a stochastic algorithm for the efficiency assessment of external LPS (Lightning Protection System) of structures. …
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Stator resistance tuning based on a neural network in an indirect rotor field oriented control system of an induction motor
This paper presents an ANN-based (artificial neural network-based)method of stator resistance tuning in an IRFO (indirect rotor field …
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Simulation of a single phase short circuit using ATP/EMTP
The idea of ​​the thesis is to design and simulate a single-pole short circuit on a triplex of a double line using ATPDesigner on a …
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Relay protection calculations for the 110 kV overhead lines incident to the Pump Station Busko Blato
The paper presents analyses and calculations of the relay protection system settings for 110 kV incident transmission lines at the …
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Reduction of inrush current of three phase power transformers
Udarne struje koje se javljaju prilikom uklopa energetskog transformatora mogu doseci vrlo velike iznose te uzrokovati mnogobrojne …
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Real-Time Power Angle Determination of Salient-Pole Synchronous Machine Based on Air Gap Measurements
This paper presents a new method for the real-time power angle determination of the salient-pole synchronous machines. This method is …
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Quality of electrical energy with regards to grounding
In this final paper, based on the available literature, various aspects of electricity quality are briefly reviewed, with special …
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Protection of an electric power facility from direct lightning strokes
The basic task of this diploma thesis is the description of the basic settings of the protection of power plants against direct …
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Problems associated with power supply of Sveti Rok Tunnel
For the needs of the power supply of the Sveti Rok Tunnel, the TS 35 / 20 (10) kV Obrovac and TS 35 / 20 kV Sveti Rok were built. They …
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Prioritization procedure for the power transmission lines and transformers revitalization
Important issue for the Transmission System Operators is how to deal with older transmission assets. To ensure system reliability and …
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Preliminary grid connection analysis and solution for WPP Ponikve
The study examines and selects the method of connecting the Ponikva wind power plant to the 110 kV transmission network or the 30 kV …
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Preliminary grid connection analysis and solution for WPP Jelinak
The study deals with and selects the method of connecting the Jelinak wind power plant to the 110 kV transmission network or the 30 kV …
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Preliminary feasibility analysis for WPP Stražbenica with grid connection solution and techno-economic/spatial data
In the study, a preliminary analysis of the justification of the construction of the Stražbenica plant and the connection to the …
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Preliminary feasibility analysis for WPP Plić with grid connection solution and techno- economic/spatial data
In the study, a preliminary analysis of the justification of the construction of the Pliš power plant and the connection to the …
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Preliminary feasibility analysis for WPP Orlovac 1 with grid connection solution and techno-economic/spatial data
In the study, a preliminary analysis of the justification of the construction of the Orlovac 1 plant and the connection to the electric …
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Preliminary feasibility analysis for WPP Melina with grid connection solution and techno- economic/spatial data
In the study, a preliminary analysis of the justification of the construction of the Melina power plant and the connection to the …
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Preliminary feasibility analysis for WPP Bračevići with grid connection solution and techno-economic/spatial data
In the study, a preliminary analysis of the justification of the construction of the Bračevići VE plant and the connection to the …
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Preliminary feasibility analysis for 6 WPP with grid connection solution and techno- economic/spatial data
In the study, a preliminary analysis of the justification of the construction of 6 different wind farms and their connection to the …
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Potential distribution for a harmonic current point source in horizontally stratified multilayer medium
This paper aims to describe a numerical procedure for approximating the potential distribution for a harmonic current point source, …
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Parametric analysis of the retardation factor
This thesis deals with the problem of a point source of harmonic current in a multilayer horizontally complex medium, where the first …
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Overvoltage protection of low voltage systems
In the introductory part, we defined overvoltages. We consider overvoltages on devices to be unwanted and dangerous phenomena because …
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Overvoltage protection calculation for the 35 kV cable connection between switchyard and auxiliary transformer in HPP Senj
The paper presents analyses and calculations of overvoltage protection of the cable connection 35 kV plant - house transformer in HPP …
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Options and transmission network stage development influenced by the connection of HPP Zakučac on 220 kV transmission network
Considering the complexity of the Zakučac HPP revitalization process and its importance in the EES of Croatia, adjustments and upgrades …
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Optimal location for the new TS 400/110kV in the Zadar area
The main goal of the study is to define a proposal for the long-term development of the transmission network in the Zadar area with a …
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Numerical modeling of electromagnetic transient phenomena in power system using finite element technique
This paper sets out a theoretical basis and creates a computer program that successfully demonstrates the application of the finite …
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Numerical computation and dangerous voltages verification of the earthing system for the Pump Station Busko Blato
The paper presents a numerical calculation of the existing grounding system of the 110 kV switchgear at the Busko Blato substation, and …
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Monte Carlo based efficiency assessment of lightning protection system
This paper presents an algorithm for the efficiency assessment of LPS (Lightning Protection System) of buildings and high voltage …
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Methods for assessment of geoelectrical parameters of ground
In this final paper, based on the available literature, the most commonly used methods for assessing the geoelectric properties of soil …
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Mathematical model of lightning stroke development
This paper presents a mathematical model of the lightning stroke path development. Any lightning model is a mathematical construct …
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Long term transmission network development for southern Dalmatia region
This study elaborates on the conceptual level the possible directions and stages of the development of the transmission network of …
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Lightning protection of buildings
The introductory chapter discusses the current IEC/EN 62305 standards. These are standards in the field of lightning protection. The …
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Lightning protection of boats
This paper describes the system for protecting ships from lightning strikes. The development of the protection system throughout …
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Licence (certificate of qualification) for inspection and maintenance according to projects of special systems
Operational traffic surfaces, installations and devices of light signaling and systems of safe power supply are parts of complex …
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Integration of wind energy into Croatian power system
The possibility of fitting wind farms of large power into the power system, and coordinating their work with other classic production …
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Inner impedance computation of a rectangular conduit
In this paper, one-dimensional and two-dimensional calculations for the unit internal impedance of a rectangular conductor are …
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Influence of Croatian Motorways electrical networks on distributive networks
The implementation of the plan of the Government of the Republic of Croatia on the accelerated construction of motorways is …
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Frequency Response of Multiple Conductors Buried in a Lossy Ground
The analysis of electromagnetic field coupling to multiple wires buried in a lossy half-space is of interest in many electromagnetic …
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Electromagnetic torque analysis of a DFIG for wind turbines
Electromagnetic torque of doubly fed induction generator (DFIG) is a consequence of the rotor and stator supply. The stator voltage has …
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Electromagnetic model of the system of conductors in multilayer medium
In the process of designing the grounding system of an electrical power facility, it is necessary to calculate as accurately as …
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Electrical distribution networks
POSITION OF THE DISTRIBUTION NETWORK IN THE EES AND BASIC CHARACTERISTICS OF THE DISTRIBUTION NETWORK, STRUCTURE AND CONFIGURATION OF …
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Effective length of horizontal grounding electrode
In this paper, the influences of the length of grounding electrodes on the lightning transient characteristic were analyzed. The effect …
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Dynamic characteristics of a grounding system using the theory of MTL
The main idea of ​​the thesis was to get to know the dynamic characteristics of impulse earthing switches in more detail. Knowledge of …
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Doubly-Fed Induction Generator Torque in Wind Turbines
The field oriented doubly-fed induction generator (DFIG) is being increasingly used in variable speed wind turbines. It is therefore …
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Determination of the mutual ground resistance of adjacent grounding grids
The article deals with the problem of determining the mutual grounding resistance of two close, metallically connected grounding …
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Correlation and regression of wholesale electricity marker daily prices in Europe
Comparing to classical goods and services electricity is very specific due to inability to be stored, continuous balance between …
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Computing of internal impedance of a cylindrical conductor
In this thesis, expressions for the unit internal impedance of a cylindrical conductor and expressions for the factors of increase in …
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Computing of electromagnetic field of underground electrical power lines
This paper describes the problem of calculating the electromagnetic field of power cables. From Maxwell’s equations, equations …
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Computing of electromagnetic field of overhead power lines
This paper describes the problem of calculating the electromagnetic field of overhead power lines. From Maxwell’s equations, …
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Computation of the overhead power line electromagnetic field
This paper presents a novel computational algorithm for the determination of the overhead power line electromagnetic fields. Algorithm …
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Comparison of wire antenna and modified transmission line approach to the assessment of frequency response of horizontal grounding electrodes
The paper deals with different methods for the assessment of frequency response of a horizontal grounding electrode. The approaches are …
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Characteristics and application of line over-voltage surge arresters
The topic of this thesis was linear surge arresters, i.e. their features and application. As their task is to protect against …
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Assessment of wind farm portfolio for HEP OIE d.o.o.
The aim of this study is to assess the existing portfolio of wind power projects developed by companies on the domestic market from the …
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Assessment of Maximal Electromagnetic Field Values Based on the Discrete Measured Data Set
The paper deals with an assessment procedure of the maximal electromagnetic field values. The technique used in this work comprises the …
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Assessment of lightning current parameters
The thesis deals with the problem of estimating lightning current parameters, which can be described using a double-exponential …
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Ascertaining the accuracy of an approximated computation of a grounding system
In this paper, calculations of the grounding system were performed in two ways: using design methods and using the EarthHGriD software …
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Application of the Fourier transform in the computation of grounding systems
The thesis deals with the problem of calculating the potential distribution at a certain distance from a point impulse charge as well …
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Application of metal-oxide surge arresters in an electrical power system
The task of this thesis was to examine the issue of protecting the power system from lightning strikes using metal-oxide surge …
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Analysis of wind turbine 7 and 8 breakdown in the wind farm Trtar - Krtolin with protection measures recommendations
The paper analyzes the cause of the failure of wind turbines VE 7 and VE 8 in the Trtar – Krtolin wind farm. After the most likely …
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Analysis of transformer TR2 in TS 110/35/10 kV Makarska relay protection tripping due to fault in the incident 110 kV transmission network
In the paper, an analysis of the possibility of the operation of the protection of the transformer TR2 in TS 110/35/10 kV Makarska was …
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Analysis of the 110 kV network in the area of Bilice - Podi - Trogir with optimal technical solution of 110kV power line interpolation in TS Podi and TS Trogir
As part of the study, the basic variants of the introduction of DV 2x110 kV Trogir - Podi into TS Trogir were processed, for the …
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Analysis of magnetic saturation in induction motor drives
The purpose of this paper is to provide a numerical method for identification of the mutual inductance and leakage inductances of an …
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Analysis of grounding electrode dynamic resistance using FEM
This paper presents an analysis of transient behavior of grounding electrode under the soil ionization effect. The proposed numerical …
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Analysis of grounding electrode dynamic characteristics using FEM
This paper presents an analysis of transient behavior of grounding electrode under the soil ionization effect. The proposed numerical …
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Analysis of Electromagnetic Field Coupling to a Single Wire above a PEC Ground Using Wire Antenna Theory: Analytical versus Numerical Solution
The paper deals with various approaches for the analysis of electromagnetic field coupling to horizontal straight line of finite length …
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Analysis of adverse conditions at temporary working sites of the conveying tunnels for the RHPP "Velebit", HPP "Orlovac", HPP "Zakucac" and HPP "Kraljevac"
The paper analyzed and proposed a solution to the problem of meeting safety conditions at temporary work sites for the rehabilitation …
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An optimal electricity allocation model for the effective utilisation of energy sources in India with focus on biofuels
With increasing agricultural and industrial activities in the country, the demand for energy is also rising. Renewable energy sources …
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An IRFO system with stator and rotor resistance identification for the induction motor
This paper presents a new online identification method for the stator and rotor resistance of an induction motor operating in an …
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A Procedure for Assessment of Maximal Electromagnetic Field Values from Urban Power Substation
The paper deals with an assessment procedure of the maximal electromagnetic field values related to urban power substation. Assessment …
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A micron-sized nanoporous multifunction sensing device
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110 kV cable network conception, feasibility analysis and optimal route selection for the city of Dubrovnik
The goal of this study is to define a proposal for the configuration of the network of the city of Dubrovnik, which would meet the …
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Transient Response of a Thin Wire above a Real ground using a Simplified Reflection Coefficient Approach
The paper deals with a transient analysis of a straight thin wire in a two media configuration using a simplified reflection …
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Transient Analysis of a Finite Length Line embedded in a Dielectric Half-Space using a Simplified Reflection/Transmission Coefficient Approach
The paper deals with a transient analysis of a finite length wire embedded in a dielectric half-space and illuminated by the …
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Towards the model for the assessment of the current density induced in the human body due to the electric field irradiated from the rod struck by lightning
The paper deals with a simple model for an assessment of the current density induced in the human body located in the vicinity of a …
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Studying Electrical Engineering and Information Technology at University of Split, Croatia
The Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture (FESB) of University of Split was founded in 1960. …
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Study of hydro power plant management for plants owned by JP „Elektroprivreda HZ Herceg Bosne“ d.d. Mostar
This study provides an elaboration of the hydroelectric power management system owned by EP HZHB Mostar with the aim of optimal …
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Stochastical strength of power grid in open market environment
The goal of this research was to design a multivariate method and a software tool that would allow transmission and distribution system …
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Simplified modeling of the human body exposed to power substation electric field using boundary element analysis
This paper deals with human exposure to ELF electric fields generated by a transformer substation.
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Short circuit analysis for pumped station Buško Blato
The subject of this study is the calculation of the short circuit of CS Buško Blato for the existing and planned state of the power …
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Relay protection database
The paper presents the development of a relay protection database through a series of phases. In the database planning phase, problems …
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Preliminary grid connection analysis and solution for WPP Vrbnik
The study deals with and selects the method of connecting the Orlice wind farm to the 110 kV transmission network or the 30 kV …
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Preliminary grid connection analysis and solution for WPP Svilaja
The study examines and selects the method of connecting the Svilaja wind farm to the 110 kV transmission network or the 30 kV …
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Preliminary grid connection analysis and solution for WPP Oton
The study deals with and selects the method of connecting the Oton wind power plant to the 110 kV transmission network or the 30 kV …
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Preliminary grid connection analysis and solution for WPP Glunča
The study examines and selects the method of connecting the Glunča wind farm to the 110 kV transmission network or the 30 kV …
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Preliminary grid connection analysis and solution for WPP Crno brdo
The study deals with and selects the method of connecting the Crno Brdo wind farm to the 110 kV transmission network or the 30 kV …
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Numerical Analysis of Power System Electromechanical and Electromagnetic Transients Based on the Finite Element Technique
This paper presents a novel technique for numerical analysis of electromagnetic transients and electromechanical oscillations in a …
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Methodology for Synchronous Hydrogenerator Parameter Identification Based on Monitoring System Measurement
A methodology for identifying the parameters of a synchronous hydrogenerator in operation (on-line) has been defined, which is based on …
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Long-term grid development plans for areas Omiš- Makarska-Ploče
In this study, a proposal for the development of the distribution network is given based on the current situation and the forecasted …
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Hydrogenerator power angle determination in dynamic conditions based on air gap measurements
The article presents a new method for determining the load angle of a salient-pole synchronous machine. The method is based on …
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Ground impedance measurement on the ground system of HE Zakucac
The Zakucac HPP is the largest hydropower plant in the Cetina River basin, located at the mouth of the Cetina River near Omis. It uses …
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Ga-assisted GaAs nanowires
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FET analysis of counterpoise wire break position in underground cable system
This paper presents usage of the Finite Element Technique (FET) when modelling the impact of the underground copper wire break position …
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FEM matrix formulation in 2D eddy current analysis
The finite element matrix for 2D eddy current analysis using eight node quadrilateral isoparametric finite element [3] is presented. …
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FEM matrix formulation in 2D eddy current analysis
The finite element matrix for 2D eddy current analysis using eight node quadrilateral isoparametric finite elements is presented. …
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Electromagnetic Field Coupling to Buried Wires: Comparison of Frequency Domain Wire Antenna and Transmission Line Model
The paper deals with different frequency domaain approaches for the analysis of EM field coupling to finite length buried wires based …
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Electrical networks
power system and power networks, power network elements, equivalent schemes and calculation of basic electrical parameters of power …
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Electric power basics
Energy and energy sources, power plants, power system, analysis of AC networks
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Efficient algorithm for interpretation of resistivity sounding data
This paper presents efficient algorithm for interpretation of resistivity sounding data. The earth is modelled as a set of horizontal …
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Determination of Synchronous Generator Armature Leakage Reactance Based on Air Gap Flux Density Signal
A new procedure for the armature leakage reactance of the synchronous generator determination is proposed. The procedure is based on …
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Design and implementation of predictive filtering system for current reference generation of active power filter
The shunt active power filters are used to attenuate the harmonic currents in power systems by injecting equal but opposite …
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Dangerous voltages due to direct lightning strike into the communication tower
This paper presents a novel technique for computing dangerous voltages due to direct lightning strike into the communication tower and …
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Computation of maximal magnetic field value generated by a power substation
A procedure for the computation of the maximal value of extremely low frequency magnetic fields form a power substation is proposed.
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Characteristics of the ground system HE Peruca 2007
Measurements on the Peruca HPP grounding device were carried out by simulating a condition similar to a single-pole short circuit. …
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Calculation of Annual Active Energy Losses in a Distribution Network with a Connected
The connection of distributed energy sources to the distribution network, among other influences, results in a redistribution of power …
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Bologna Process at the Faculty of Electrical Engineering, Mechanical Engineering and Naval Arcitecture in Split
U skladu s obvezama koje proizlaze iz Zakona o visokom obrazovanju i znanstvenoj djelatnosti, u akademskoj godini 2005/06. FESB je …
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An EMTP extension for computing earthing system transient step and touch voltages
This paper presents a novel technique for computing dangerous voltages due to lightning transients imposed on earthing system, which is …
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Advanced algorithm for efficiency assessment of external lightning protection system
The thesis describes the basic features of lightning current, with an emphasis on the analysis of the peak lightning current. The …
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A Method for the Long-Term Scheduling of Hydrothermal Power System With Multiple User Reservoirs
This paper presents an optimization-based method for the long-term scheduling of hydrothermal power system with several multiple-user …
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Tesla's Resonant Transformer
The paper presents a model of a Tesla transmitter with an increase effect realized by a transmission line with a distributed voltage …
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South East Europe Energy Community - Development of electricity infrastructure
This paper presents basic data about Southeast Europe power systems and open discussion about infrastructure development, supporting …
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Some Notes on Transmission Line Representations of Tesla's Transmitters
In this paper, we analyse the transmission line (TL) representations of various Tesla’s transmitters. This type of modelling is very …
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Small HPP Peruća fesibility study
This study deals with the energy-economic contributions of the construction of the Peruć HPP, in such a way as to determine the …
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Simple Transmission Line Representation of Tesla Coil and Tesla’ s Wave Propagation Concept
In this paper, we shall propose a simple transmission line model for a Tesla coil that includes distributed voltage source along …
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Simple Transmission Line Representation of Tesla Coil and Tesla's Wave Propagation Concept
In this paper, we shall propose a simple transmission line model for a Tesla coil that includes distributed voltage source along …
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Revision and new concept of electricity supply from transmission and distribution network for Split-Dubrovnik highway: Dugopolje-Zagvozd section.
The study investigates the existing solution and defines a new concept of a comprehensive solution for the power supply of facilities …
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Quality voltage analysis at power system connecting point of TLM Sibenik
The study analyzes the measurement results at the point of connection of the TLM to the power grid, i.e. at those locations that are …
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Protocol for the measurement of noise levels at the built plant TS 110/10 (20) kV
The measurement of external noise levels at the new substation TS 110/20(10) kV “DOBRI” in Split was carried out at the request of the …
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Profitability of small hydropower plant
structure of small hydroelectric power plants, planned technical characteristics of MHP Peruća, hydrological and energy basis and …
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Prioritization Procedure for Transmission Network Assets Revitalization
The paper gives an overview of existing ageing of transmission system assets in Croatia and generally in Europe. Due to necessary …
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Numerical Methods in Electrical Engineering
Skripta Numericke metode u elektrotehnici temelje se na visegodisnjem istrazivackom, strucnom i nastavnom radu autora na podrucju …
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Nonuniformity Modeling of a Particular Aluminum Sheath Temperatures and Losses
A non-linear coupled electric-thermal model of the underground cables having aluminum sheaths is developed. The mathematical model …
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Non-linear Coupled Electric-thermal Modeling of Underground Cable Systems
An original nonlinear-coupled electric-thermal model of underground cables with the solid sheaths is proposed.
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Nikola Tesla - Scientist Out of Time
The aim of this paper is to present the life of a remarkable scientist and a man – Nikola Tesla. Story of this man’s life that set him …
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More accurate computation of touch and step voltage
The paper describes a numerical algorithm for more accurate calculation of touch voltages and step voltages. The algorithm is based on …
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Modelling Tesla’s Radio System as a Transmission Line
In this paper, we present a transmission line model of the Tesla’ s radio system concept. It is shown that the radio equipment as well …
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Modeling of three level surge protection device using EMTP-ATP
In case of an atmospheric outbreak in the vicinity of low-voltage electrical installations, dangerous overvoltages are induced. Modern …
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Modeling of Synchronous Generator with Thyristor Excitation System
The paper describes the modeling and simulation procedure of a synchronous generator connected to a rigid grid via a choke using the …
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Model of short-term planning and optimization of Lika-Gacka hydroelectric system
The study elaborates and proposes a comprehensive concept of a model for managing and optimizing the operation of the hydropower system …
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Magnetic Fields of Power Lines Related to Maximal Sag Position
The possible health risk makes the assessment of extremely low frequency electromagnetic fields of great interest. This papaer deals …
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Magnetic Fields of Power Lines Related to Maximal Sag Position
The possible health risk makes the assessment of extremely low frequency electromagnetic fields of great interest. This papaer deals …
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Italian-Croatian Remote Laboratory Distributed on Geographical Network
The paper presents the E-learning project and the work until now done to extend the features of the Italian Remote Laboratory …
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Influence of Ponikve wind farm on transmission network
The study examines and selects the method of connecting the Ponikve wind farm to the 110 kV transmission network, and examines power …
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Impact of Reference Value of Wind Turbine Active Power to the Distribution of Doubly-Fed Induction Generator Power
The renewable power sources are today rapidly researched objects. Wind energy is one of possible renewable sources. The wind turbine …
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Fault diagnosis of squirrel cage induction motor analysing line neutral volrage
This paper describes the modeling, determination of parameters, measurement and analysis of cage asynchronous motor failures, such as …
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Design of Hydrogenerator Operational Chart in LabVIEW
This paper describes the procedure for creating a power map of a hydro generator connected to a rigid grid using the LabVIEW software …
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Contemporary illusions about efficiency of non-conventional air terminals
Recently, around the world, there has been increasing pressure from manufacturers and sellers of non-classical (active) lightning …
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Comparison of Wire Antenna and Transmission Line Model for Transient Analysis of Grounding Electrodes
The paper deals with different methods for the transient impedance calculation of simple grounding systems. The approach based on the …
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Characteristics of the ground system HE Kraljevac
The Kraljevac hydroelectric power plant was built on the Cetina River at the beginning of the 20th century and is one of the oldest …
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Base for project of windfarm Podkom
The paper deals with the foundations and the development of a preliminary design for the Podkom wind farm. It describes the available …
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Assessment of Human Exposure to Power Substation Electric Field
The paper deals with human exposure to extremely low frequency (ELF) electric fields generated by transformer substation. The problem …
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Application of Thyristor Rectifier Simoreg for Ecitation System of Synchronous Generator
The paper describes the procedure for commissioning the thyristor rectifier Simoreg which is used to power the excitation winding of a …
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Analysis of Tesla’s Transmitter using Wire Antenna Theory
The paper deals with the modeling of Tesla’s transmitter by using the wire antenna theory approach. The radiating part of the …
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Analysis of hydropower automation
This study is intended as one of the possible bases (and that is its purpose) for all future work related to the further construction …
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An Analysis Of The South East Europe Electricity Market
South East European (SEE) power system has never been connected in unified parallel operation until October 2004. Untill 1995 Hungary, …
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An analysis of the South East Europe electricity market
This paper presents basic data about Southeast Europe power systems and open discussion about infrastructure development, supporting …
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A Simple Finite Element Model of Heat Transfer in the Human Eye
A simple finite element 2D model of the human eye is developed to calculate the steady-state temperature distribution.The mathematical …
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A numerical-stochastic technique for underground cable system design
A numerical-stochastic technique for an optimisation of underground cable systems is presented.
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A critical review of active lightning protection ait terminals effectiveness
Recently, around the world, there has been increasing pressure from manufacturers and sellers of non-classical (active) lightning …
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2D BEM analysis of power cables thermal field
This paper describes a novel 2D BEM numerical model for analyzing buried power cables thermal field. The total number of power cables …
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Wind farms integration in Croatian power system and economic valorization of generated electrical energy
The paper describes two important aspects of wind power plant operation related to the perspective of wind power development in …
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Voltage dips influence zone and propagation through the industrial facility
Voltage dips and short interruptions are mainly caused by the short circuit in transmission and distribution network. In this paper it …
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Voltage analysis of phase disconnection of double circuit overhead line in Croatian Power System
The paper describes the problem of induced voltages on disconnected triples of dual-system transmission lines. A detailed analysis was …
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Transient impedance of the vertical grounding electrode
The paper deals with the calculation of the transient impedance of a vertical grounding electrode. The mathematical model is based on …
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TLM Model for the Lightning Transient Analysis of the GSM Base Station
This paper presents a transmission line model (TLM) for the GSM base station lightning transient analysis, which is based on the use of …
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The phenomenon of excessive erosion in the area of Slani potok (Vinodol valley)
The Vinodol Valley has an irregular elliptical shape with a maximum total length of up to 23 km and a width of up to 4 km, and a broken …
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Software package for VOLTAGE ANALYSIS OF PHASE DISCONNECTION OF DOUBLE CIRCUIT OVERHEAD LINE
When one of the two triplets of a dual-system transmission line is disconnected while the other remains in operation, electromagnetic …
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Rotor Speed Estimation in Vector Controlled Induction Machine Using Neural Network
The paper analyzes one of the structures of vector control of an induction motor (AM) without a speed measuring term. This vector …
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Relay protection of capacitor banks
The thesis presents the designs of the most commonly used compensation devices in medium-voltage networks. An analysis of …
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Reference Value Choice of the Wind Turbine Active Power with Doubly-Fed Induction Generator
The variable speed wind turbine with doubly-fed induction generator (DFIG) is today widely used concept. This paper presents a control …
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Preliminary concept of electricity supply of Split-Dubrovnik highway: Ploce-Dubrovnik section
The study explores and defines the conceptual solution for power supply to the facilities of the planned Ploce-Dubrovnik highway.
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Predictive control of multi inputs - multi outputs processes
U ovoj se disertaciji obraduje problematika primjene predikcijskih regulatora na procese s vise ulaza i vise izlaza (MIMO procesi). …
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Pometeno brdo wind farm connection to electrical network
The study examines and proposes variants for connecting the Pometo Brdo wind farm to the 110 kV transmission network or the 35(10) kV …
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Overview of health effects due to RF radiation
The paper reviews a series of studies over the past 5 years to identify possible adverse effects on human health from exposure to …
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On-Line Determination of Hydrogenerator Synchronous Reactances
The paper presents the procedure for identifying the synchronous reactance in the longitudinal and transverse axis of the …
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Modeling of Synchronouss Generator Loaded with Diode Rectifier
The paper describes the process of modeling and simulating an electromechanical system such as a synchronous generator loaded with a …
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Modeling of electromagnetic transients on transmission lines using the finite element method
This paper describes the use of the finite element method when modeling electromagnetic transients on transmission lines in the time …
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Measurement of temperature field in the model of loaded high voltage cable in the cable tunnel HE Zakucac
As part of the revitalization of the ZAKUCAC HPP, among other things, the construction of 110 kV and 220 kV cable systems is planned on …
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Measurement of Soil Thermal Properties by Spherical Probe
The thermal resistivity of the soil surrounding a power cable is a very important factor in evaluating the load-carrying capability of …
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Measurement of GSM base station electrical field and calculation of temperature increase inside human body due to exposure
Measurement of far electrical field from the GSM base station and electromagnetic - thermal analysis of human exposure to that field is …
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Measurement of Extremely Low Frequency Electric and Magnetic Fields
Techniques for measuring extremely low frequency electric and magnetic fields are presented in this article. The simple overview of the …
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Linear Circuit Analysis Using Finite Element Technique
This paper describes a very simple but powerful numerical algorithm for the steady – state as well as transient linear electrical …
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Influence of temporary overvoltages on the dry band arcing on ADSS fiber optic cable installed on pylons of high voltage overhead line
The paper presents a numerical calculation of the influence of temporary overvoltages (TOV) on the occurrence and magnitude (amplitude) …
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Influence of Montaling d.o.o. welder operation in concrete armature factory on local distribution network
The subject of the study is the examination/analysis of the possible effects of the plant for the production of concrete reinforcements …
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Identification of Induction Motor Parameters from Free Acceleration and Deceleration Tests
In this paper, a new step-by-step approach to identify the parameters of an induction machine combining free acceleration and …
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Identification of Induction Motor Parameters from Free Acceleration and Deceleration Tests
In this paper, a new step-by-step approach to identify the parameters of an induction machine combining free acceleration and …
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Grounding of the submarine fiber optic cable
The paper deals with the issue of grounding a submarine optical fiber cable from the point of view of the influence of the potential …
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EMTP Modelling of Direct Lightning Strikes to the GSM Base Station Tower
This paper presents a numerical model for the GSM base station electromagnetic transient analysis. The model is based on the use of the …
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Electromagnetic-thermal Modeling of the Human Body Exposed to GSM and UMTS Radiation
Electromagnetic-thermal modeling of human exposure to base station antenna radiation is presented in this paper.
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Electromagnetic Transients Modeling in Power Systems Using the Finite Element Technique
This paper presents a new method when modeling electromagnetic transients in a power system in the time domain, based on the finite …
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Electromagnetic shielding and earthing
The article discusses the issue of electromagnetic shielding of electrical devices, equipment or systems for protection against …
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Electromagnetic Modelling of the Human Body Exposed to Extremely Low Frequency (ELF) Electromagnetic Field
Analytical approximation of the human body exposed to extremely low frequency electromagnetic radiation is presented in this thesis. …
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Electromagnetic Modeling of the Human Body Exposed to Extremely Low Frequency (ELF) Electromagnetic Field
Analytical modeling of the human body exposed to extremely low frequency electromagnetic radiation is presented in this article, which …
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Electromagnetic hypersensitivity sindrom
More and more people are complaining of health symptoms of unknown origin, and the culprit is usually found in ’electromagnetic …
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Development of distribution network on Dubrovnik area - preliminary concept
The subject of the elaboration of this document is a preliminary overview of the possible directions of development of the distribution …
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Computing the mutual impedances between segments of earthing system conductors
An electromagnetic model of the non-equipotential large earthing system at power frequency includes transversal and longitudinal mutual …
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Analysis of hydropower automation
In accordance with the knowledge about the particularities of each HPP, the overall material of the study Analysis of automation of …
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Analysis of cable sheath earthing options of 110 kV cable connection TS Dobri - TS Kastela
The cable connection TS Dobri - TS Sucidar will be made of 110 kV single-core cables with XLPE insulation. It consists of three …
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An Optimization Procedure for Cable System Design
Numerical-stochastic procedure developed for an optimization of underground cable systems is presented. The procedure is based on: (1) …
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Aggregate batching control system by asphalt manufacturing
The asphalt production process is discussed and all parts of the production process are described in detail. Special attention is paid …
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Active Power Filter for Harmonic Distortion Compensation of Induction Motors with Soft Starting
A parallel active power filter for harmonic distortion compensation, its signal processing unit, control principle and power stage are …
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Active and reactive power control of wind turbine with doubly fed induction generator
In the paper, an analysis of the vector control system of the active and reactive power of a wind power plant with a double-fed …
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Voltage dips analyses, suppression and protection methods for cement factory RMC-Dalmacijacement
The study presents the results of testing frequent outages in the industrial power grid of the Dalmacijacement cement plant. The most …
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Techno-economic analyses of Velika Glava wind park and Mravinjac wind park connection on transmission network
The study examines and proposes variants for connecting the Velika Glava and Mravinjace wind farms to the 110 kV transmission network, …
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Start-up of sensorless electronically commutated motor
The paper presents the EKM take-off method without a rotor position sensor. The method is adapted for integration into already existing …
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Some of problems of Electromagnetic compatibility
Electromagnetic interference is any electromagnetic phenomenon that can reduce the characteristics of a device, equipment or system, or …
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Problems associated with small-scale power plant connected to distribution networkfrom the point of view of relay protection
The paper presents the problem of a weakly productive source in a distribution network from the point of view of its relay protection. …
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Parallel Active Power Filter With Predictive Structure For Reference Current Determination - Experimental System
For the purpose of experimental verification of the simulation results of the three-phase active filter with predictive determination …
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On-Line Hydrogenerator Power Angle and Synchronous Reactances Determination Based on Air Gap Measurement
This paper presents a method for the power angle determination of the salient-pole synchronous machine from the terminal voltage and …
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Multilayer Neural Network Verification of Mutual Inductance Choice in Sensorless Induction Motor Vector Control System
Squirrel-cage induction motor (IM) is the most frequently used electric machine in modern controlled electromotor drives. In this paper …
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Multiconductor transmission lines modeling using the finite element technique
This paper presents the use of the finite element method when modeling multiconductor transmission lines problems. The proposed method …
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Model of short-term planning and optimization of Cetina hydroelectric system
In the study, a complete concept of the management and optimization model of the hydropower system (HES) of the Cetina river basin was …
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Hydrogenerator Monitoring
The study can be divided into two characteristic parts: study and research. The study part, which includes chapters 2 and 3, first …
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Establishment of Transmission system operator in Croatia - possible solutions and alignment with Directive 2003/54/EC
The restructuring of HEP, as well as the entire reform of the energy sector, takes place under the permanent imperative of harmonizing …
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Development of advanced functions of ripple control system applications in DP Elektrodalmacija
The study examined the effects of introducing the MTU system in DP Elektrodalmacija, as well as the possibilities of expanding the …
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Current status ond outlook of wind power in Croatia
In the past few years, a large number of private companies and potential investors have emerged and initiated activities to prepare for …
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Check of Identification Procedure for Induction Motor Rotor Resistence Determination from Stopping Test
The paper describes a parameter identification procedure based on an asynchronous motor start-stop experiment. The problem of rotor …
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Characteristics of the ambient relevant for the possibility of destruction of the OPGW wire and the means of the risk reduction: Influence of the lightning discharges
The paper presents the issue of the impact of atmospheric outbreaks on the OPGW rope. The characteristics of lightning currents and the …
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Calculational evaluation of sensibility of 95% stator earth fault protection of motor - generator in RHPP Velebit
The paper presents a computational verification of the sensitivity of the 95% earth fault protection of the motor-generator stator in …
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An optimisation technique for the underground cable system design
The numerical-stochastic technique developed for the optimization of the underground cable systems is presented. The procedure is based …
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A Simplified Electromagnetic-thermal Analysis of Human Exposure to Radiation from Base Station Antennas
Electromagnetic-thermal analysis of the human body exposed to base station antenna radiation is presented in this work. The formulation …
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A Sensorless Vector Control System - Saturation in Iron Analysis
Due to saturation impact in iron and thermal changes of stator and rotor windings induction motor (IM) is especially non-linear system. …
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Voltage profiles on the optic fiber in high-voltage transmission line
The paper presents the results of the analysis of voltage conditions in a self-supporting optical cable suspended from the poles of …
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Trtar-Krtolin wind farm connection to distribution network
The study deals with and selects the method of connecting the Trter-Krtolin wind power plant to the 30 kV distribution network, and …
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Transients analysis of synchronous generator using the finite element technique
The paper describes the use of the finite element technique when modeling electromagnetic transients in a power system in the time …
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Time-harmonic analysis of earthing grids
This paper presents a new electromagnetic model for time-harmonic analysis of earthing grids. The model is based on applying the finite …
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The problems with grounding and protection of the starpoint of large generators
The paper deals with the issue of grounding and protection of constellations of large generators. The occurrences of earth faults in …
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The finite element method transient model of grounding electrode
Ovaj rad prikazuje primjenu tehnike konacnih elemenata pri modeliranju impulsne impedancije uzemljivaca uz utjecaj korone. Rezultati …
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The Electromagnetic-Thermal Analysis of Human Exposure to Radio Base Station Antennas
Electromagnetic-thermal analysis of the human body exposed to base station antenna radiation is presented in this work. The formulation …
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The electricity market and hydro in transitional countries: the example of Croatia
The process of power system restructuring and electricity market opening in transitional European countries (former socialist countries …
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The computational simulation of the fault in 110 kV line bay Ston in TS 110/35/10 kV Komolac
The paper presents a computational simulation of the state of failure in the water field 110 kV Ston in TS 110/35/10 kV Komolac. On …
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The calculation of dangerous influence of 110 kV double-cable line Vrboran - Split3 on the telecomunication lines in Pujanke - Split3 area
U radu su prikazani rezultati proracuna opasnog utjecaja KB 2x110 kV na telekomunikacijske vodove smjestene u podrucju Pujanke – Split …
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The Assessment of Human Exposure to Low Frequency and High Frequency Electromagnetic Fields Using the Boundary Element Analysis
The Assessment of Human Exposure to Low Frequency and High Frequency Electromagnetic Fields Using the Boundary Element Analysis
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The assessment of human exposure to low frequency and high frequency electromagnetic fields using boundary element analysis
Analysis of the human body exposed to low frequency and high frequency electromagnetic fields is presented in this work. The …
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The analysis of the causes of electronic equipment destruction for the KZS 110 kV Postira
The paper presents an analysis of the causes of damage to electronic equipment in KZS 110 kV kV Postira. The aforementioned damages …
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Start-up of Sensorless Brushless DC Motor Based on Open Phase Voltage Measurement
This paper presents a method for start-up of sensorless brushless DC motor. A specific switching technique is applied to bring the …
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Rotor earth fault protection for the motor generator in RHPP Velebit
The paper presents the earth fault protection of the motor-generator rotor in RHE Velebit. The principle of its operation and the …
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Remanent flux measurement and optimal energization instant dertermination of power transformer
The inrush currents generated during a energization of power transformer can reach very high values and may cause many problems in …
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Power system transients analysis using fem
This paper presents the new method for power system analysis, based on the finite element technique, when modeling electromagnetic …
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Orlice wind farm connection to transmission network
The study examines and selects the method of connecting the Orlice wind farm to the 110 kV transmission network or the 30 kV …
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Monitoring of Electrical Quantities on Generator in HEPP Peruca
The electrical quantity monitoring system installed on generator 1 in HPP Peruca is described. The system is defined to monitor …
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Monitoring of Electrical Quantities and Parameter Identification of Salient-Pole Generator
The system for monitoring electrical quantities of a synchronous generator installed on generator 1 in the Peruca HPP is presented. …
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Lightning protection systems for large areas
The paper calculates the protective zone of a lightning rod installation for a large-scale facility using the potential coefficient …
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Establishment of Coorporative Relations within HEP Group
Formation of corporate relations in HEP ​​Group
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Electromagnetic model for analysis of time-harmonic field of earthing system
This paper presents a new electromagnetic model for the analysis of the harmonic field of mesh earth electrodes placed in a …
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Electricity supply from transmission and distribution network for Split-Dubrovnik highway: Zagvozd-Ploce section
The study investigates and defines a comprehensive solution for the power supply of facilities on the Zagvozd-Ploce motorway route at …
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Electricity supply from transmission and distribution network for Split-Dubrovnik highway: Dugopolje-Zagvozd section
The study investigates and defines a comprehensive solution for the power supply of facilities on the Dugopolje-Zagvozd motorway route …
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Electricity Market and Hydropower in Transitional Countries: the Example of Croatia
The process of power system restructuring and electricity market opening in transitional European countries (former socialist countries …
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Electricity market and hydropower in transitional countries: the example of Croatia
The process of power system restructuring and electricity market opening in transitional European countries (former socialist countries …
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Electrical measurements - instructions for laboratory exercises
The instructions are prepared so that through the exercises, students can train themselves to work with instruments, become familiar …
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Efficiency analysis of single-core cable sheath overvoltage protection
The paper presents an analysis of the effectiveness of overvoltage protection of the jacket of a single-core cable. The protection in …
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Effect of magnetic fields of power plants on the environment in the zone Podi - Dugopolje
The “Podi” business and residential zone in the Dugopolje municipality is located in the area south of the Split-Sinj expressway and …
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Dry-band voltage of self-supporting fiber optic cable installed on pylons of medium and high voltage overhead lines
Demonopolization in the power and telecommunications sectors is a global process that has its positive and negative repercussions on …
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Determining currents of cable sheaths by means of current load factor and current reduction factor
A new method for determining sheath currents as the consequence of electromagnetic coupling during line-to-ground short circuit is …
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Determination of circulating current in single-core cables sheath during unbalanced service
The paper presents the determination of circular currents in the sheaths of single-core cables during asymmetric operation. These are …
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Current reduction factor of compensation conductors laid alongside three single-core cables in flat formation
The three-phase cable line consists of three single-core cables, which can have conductive sheaths, grounded at either one end only, or …
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Calculation of earthing system characteristics of urban substations
The paper presents a concise description of the basics of a mathematical model and a computer program for calculating the …
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Broken Rotor Bar Diagnostics of Induction Cage Motor
The electromagnetic conditions in an asynchronous squirrel cage motor when one rod is broken are theoretically analyzed. The harmonic …
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Analysis of the Dynamic Characteristics of Grounding Electrodes Using the Finite Element Technique
The aim of this paper is to present numerical investigations regarding soil characteristics when modeling grounding systems. The goal …
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A Method for the Long-Term Scheduling of Power System with Multiple User Reservoirs
This paper presents an optimization-based method for the long-term scheduling of power system with several multiple-user reservoirs. …
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A Method for Long-Term Scheduling of Power System with Multiple User Reservoirs
A method for long-term scheduling of power system with multiple user reservoirs is presented i nthis paper. Croatian power system is …
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Two-dimensional BEM for analysis of potential Laplace problems
The algorithm for two-dimensional (2D) boundary element method (BEM) analysis of potential Laplace problems with heterogeneous domain …
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Transients analysis of electrical machines using FEM
In this paper, a new method based on the finite element technique, has been successfully applied on sudden short circuit synchronous …
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Three-Phase Shunt Active Power Filter Using IGBT Based Voltage Source Inverter
In this paper a three-phase shunt active power filter for current harmonics cancellation by injecting a current waveform in power …
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Technical feasibility study for part of 110kV transmission network Trogir-Bilice
The study defines and examines possible variants of the construction of the 110 kV overhead line on the Trogir - Bilice route, …
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Structure of power and energy losses in mid- voltage distribution network
The issue of losses in distribution networks is always very topical, and especially the issue of realistic determination of the amount …
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State Variables Estimation in Vector Controlled Induction Machines
The paper analyzes the structures of vector control of an asynchronous motor based on stator flux linkage and rotor flux linkage. …
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Reduction effect of compensation conductors laid alongside single-core cables
The three-phase cable line consists of three single-core cables which can have conductive sheaths grounded at either one end only, or …
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PREDICTIVE STRUCTURE FOR CURRENT REFERENCE GENERATION OF ACTIVE POWER FILTER
The shunt active power filters are used to atenuate the harmonic currents in power systems by injecting equal but opposite compensating …
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Possible options of electric energy market development in Croatia
The process of restructuring the electricity sector in Croatia and introducing market relations practically began with the entry into …
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New possibilities of hydrogenerator analysis based on electrical quantities monitoring
The article describes a system for continuous monitoring of electromagnetic quantities of a hydrogenerator, which includes: armature …
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Mid-term power system planning based on daily simulation model
Planning the operation of the electric power system (EES) represents a very complex problem conditioned by numerous techno-economic …
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Inrush current of a three-phase power transformer
Uncontrolled switching of transformers on the network is accompanied by a large asymmetry of currents in the iron core. As a result of …
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Impact of Errors on Inductance Estimation of the Induction Motor in Combined System of Vector Control
The control system based on direct magnetic field orientation is less sensitive to parameter changes than the control system based on …
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Identification of induction motor rotor resistance from stopping measurements
The paper describes the parameter identification procedure based on the start-up test of an asynchronous motor. In addition, the …
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Identification of Induction Motor Parameters from Free Acceleration Test Measurements
This paper describes a method for estimating the parameters of an three-phase induction motor using the measurements of the stator line …
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FEM Analysis of Overvoltage Protection Device Including Grounding Electrodes
The aim of this paper is to present the use of the finite element method when modeling overvoltage protection device connected to a …
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Earthing effects of bare conductor laid alongside underground power cables
An analytical method is presented to determine the line-to-ground fault current distribution and related voltages in the earthing …
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Earth resistance and touch and step voltages in TS 35/10 kV Vrgorac
For protection against excessive voltage occurrences in power plants, protective and lightning arrester grounding is used, which are …
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Earth resistance and touch and step voltages in TS 35/10 kV Imotski
For protection against excessive voltage phenomena in power plants, protective and lightning protection grounding is used, which are …
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Digital control systems
Digital control systems
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Characteristics of the ground system HE Peruca
HPP Peruca is a dam-type power plant with a reservoir of multiple importance. In addition to the direct production of electricity, the …
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A new front updating solution applied to some engineering problems
An automatic mesh generation dealing with domains of an arbitrary shape could be realized by an advancing front method. The mesh …
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A Mathematical Model of the Combined System of the Induction Motor Vector Control
The contemporary vector structures are based on rotor and stator flux. The both control structures are sensitive to motor’s …
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Voltage profile improvement in distribution network by means of voltage regulators
Poboljsanje naponskih prilika u distributivnoj mrezi otoka Hvara ostvareno je pomocu regulatora napona. Padovi napona na dugackim …
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Voltage Profile Improvement in a Market Oriented Power Distribution Network Using Voltage Regulators
Voltage profile improvement in a market oriented power distribution network using voltage regulators is presented in this paper. …
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Transmission network losses in HEP utility
This article describes the issue of power and energy losses in the transmission network of the Croatian Electric Power Company. A …
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Transient Analysis of Electromagnetic Field Coupling to Buried Cables
The paper deals with the transients behaviour of a single wire buried in a dielectric half-space illuminated by the electromagnetic …
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Three-Phase Active Power Filter with Predictive Structure for Reference Current Determination
This paper describes a parallel active power filter that cancels higher harmonics of current in the electrical network. The active …
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The Finite Element Method Transient Model of Grounding Electrodes Including Corona Effect
The paper presents the use of the finite element method when modeling a transient grounding impedance including corona effect. This …
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Surge Wave Finite Element Method Modelling Including Corona Effect
The paper describes the application of the finite element method in the calculation of traveling wave propagation under the influence …
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Study of voltage growth due to load rejection in 400 kV Croatian network
Study of voltage growth due to load rejection in 400 kV Croatian network is presented in this paper. It gives a specific results of …
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Single-Core Cable Sheath Current Load Factor
Determining the current load factor of three single-core cables laid in trefoil formation, grounded at both ends is presented in this …
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Modelling and analysis of 35 kV network in DP Elektrodalmacija and analysis of possible methods of Dobri transformer station supply improvement
The preparation of this study was motivated primarily by the power supply problems of TS Dobri, i.e. by analyzing the possibility of …
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Long-term optimisation of a multiple-purpose reservoirs in hydro-dominated power systems
The paper deals with the problem of optimizing the multipurpose use of seasonal storage pools in the power system with a significant …
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Lightning transient Response of GSM Base Station Earthing Grid
This paper presents a numerical model for GSM Base Station earthing grid electromagnetic transients analysis. The model is based on the …
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Influence of earthing conductors on current reduction factor of a distribution cable laid in high resistivity soil
Influence of earthing conductors on current reduction factor of a distribution cable laid in high resistivity soil is presented in this …
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Incomplete version of the program package EarthCAD
The paper describes a working version of the EarthCAD software package, which consists of three programs. The first program, called …
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Expert report on the measurement of sound pressure levels at locations TS Dujmovaca and TS
According to the client’s request, it is necessary to measure the noise level generated by the existing TS \Dobri\ facility, and …
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Electricity supply from distribution network for Zagreb-Split highway: Prgomet-Dugopolje section
The study investigates and defines a conceptual solution for the electrical power supply of facilities on the Prgomet-Dugopolje highway …
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Development of new long-term planning model and control strategy of Busko Blato accumulation
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Determining Currents of Cable Sheaths during Unbalaced Loads
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Design and Implementation of the Extended Kalman Filter for the Speed and Rotor Position Estimation of Brushless DC Motor
A method for speed and rotor position estimation of a brushless DC motor (BLDCM) is presented in this paper. An extended Kalman filter …
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Current Reduction Factor of a Compound Cable Line
Current reduction factor of a compound cable line is analyzed in this paper and given along with a practical example.
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Current loop formation during the dangerous influence investigation
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Application of PowerCAD software package for calculation of power and energy losses in distribution networks
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An improved procedure for line discharge class selection of metal-oxide surge arresters
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A long-term Optimization Method for Reservoir Management in a Market Oriented Hydro-Dominated Power systems
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Time Domain Modeling of Coupled Wires by the Finite Element Integral Euation Method
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Time Domain Hallen Integral Equation Approach to a Lightning Channel Modeling
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The Finite Element Method Modelling Of Grounding Electrodes Transient Behaviour
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Techno – economic analysis of development and building of transmission network for JP EP HZHB
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Problems and possible sloving methods for high voltages in Dalmacija transmission network
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Network condition and limitation for direct starting of pumped power station Capljina
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Modeling and Control of a Synchronous Generator with an Active DC Load
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Energy – economic analyses of the new gas power plant Jertovec in the Croatian Power System
The study investigates the impact of fitting the new 240 MW Jetovec gas thermal power plant into the Croatian power system from the …
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Earthing grid parameters with conductor surrounded by an additional substance
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Domain optimization in FEM modelling of power cable heat transfer
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Determining the equivalent separation between a power cable and a communication cable in the dangerous voltage calculation
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Determination of surge arrester location in the switchyard
Model for surge arrester location in the switchyard is given in this paper. Mathematical model is supported by realistic example.
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Decoupling Multivariable GPC With Reference Observation
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Computing of the resulting current reduction factor for multicable connection
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Calculation of losses in electric power cables as the base of cable temperature analysis
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Brushless DC Motor Parameter Identification Based on Locked-rotor and No-load Test
A method is presented for determining brushless DC-motor parameters for the purpose of state variables estimation. The parameter …
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Analysis of steady-state characteristics of thiristor controlled squirell-cage induction motor
This thesis defines a procedure for evaluation of characteristics of the voltage-controlled sqquirel-cage induction motor without …
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Analysis of statonary characteristics of thyristor controlled induction cage motor
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Alternating point current source in multilayer medium
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A Thevenin equivalent approach for touch voltage and step voltage
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A new algorithm for exponential approximation of Sommerfeld integrals
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A new algorithm for exponential approximation of Sommerfeld integrals
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A comparison of structures and implementations of MIMO predictive controllers
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Thermal plant operation planning and impact of fuel prices on scheduling
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The switched reluctance motor cross section discretization
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The Role of the Professional Society in the Metrological Infrastructure
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The research protocol geothermical and geoelectrical soil properties at 110 kV cable route Pehlin-Turnic
Measurements of the specific resistance and thermal conductivity of the soil on the 110 kV cable route from the program 110 kV Network …
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The Finite Element Method Wave Modelling
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The Finite Element Analyse of Surge Waves in Networks with Distributive and Lumped Parameters
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The discretisation model of the SRM
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Technical - economic analysis of gasification of Split - Dalmatia County
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System for measurment of electrical quantities in power system
The paper describes a system for continuous measurement and storage of electrical quantities using a data logger.
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Statistical analysis and interpretation of resistivity sounding data in earthing grid design
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Static Characteristics of Vector Controlled Asynchronous Motor with Saturation Effect
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Simulation of Electromagnetic Transients on Single Transmission Lines via the Finite element Method
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Sensorless Brushless DC Motor Drive with Improved Speed Estimation Accuracy Using Stator Resistance Estimation
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Regional energy planning on the base of household consumption analysis in the country
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Place and role of energy efficiency and renewable energy in energy supply of Split-dalmatia county
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Overvoltage Protection for Industrial Plants
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Modelling of a Single Transmission Line Above a Dielectric Substrate
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Model of Transient Heat Conduction in Sphere
Model of Transient Heat Conduction in Sphere On the base of two port network theory equations for transient response of spherically …
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Minimum ratio of short circuit currents from solidly earthed network aspect
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Mathematical model for calculating impedance of a multi-cable interconnection between power substation earthing grids
Mathematical model for calculating impedance of a multi-cable interconnection between power substation earthing grids is presented in …
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International Conference on Electric Power Engineering, IEEE, PES, PowerTech 99
The impact of flywheel torque of refurbished generator units on the limit switching time in Croatian power system is presented in this …
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Integration of IPP power plant into power system operations planning
Each power system is special for itself and it is rare to find two identical ones in the world. The differences are in the very …
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Influence of local distribution network on the number of wind converters
Influence of local distribution network on the number of wind converters is presented in this paper, as well as practical example.
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Influence of additional substance in the trench on earthing grid parameters
The influence of additional material in the duct on the touch voltage and propagation resistance of a mesh earth electrode is …
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Fast Measurement of Soil Thermal Properties by Spherical Probe
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Earthing grids modeling with alternating magnetic field influence
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Digital Flux-gate Magnetometer
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Current induced along horizontal wire above an imperfectly conducting half-space
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Calculation of the short circuit in TLM Sibenik industrial network
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WINdis - software package for voltage profile and short circuit analysis in distribution networks
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The Finite Element Analysis of Horizontal Wire Buried in a Lossy Ground
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Syncronous Permanent Magnet Motor Drive Controlled by Microprocessor
Based on the obtained documentation, a laboratory model of a frequency converter for powering a synchronous motor with permanent magnet …
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Speed and Motor Position Estimation of Electronically Commutated Motor
The paper presents a method for estimating the rotation speed and position of the rotor of an electronically commutated motor (EKM). …
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Parallel resonant frequency measurement of compensated power system
Parallel resonant frequency measurement of compensated power system
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Overspeed Limiting of Reversible Aggregate
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Numerical Model for Computation of Earthing Grid Impulse Characteristics
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Numerical Approximation of Frequence Dependent Parameters of Earthing Grid
A numerical algorithm for approximating the frequency-dependent characteristic admittance and a numerical algorithm for approximating …
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Numerical Analysis of Earthing Grids Buried in Horizontally Stratified Multilayer Earth
This paper describes a new numerical procedure for analysing earthing grids buried in horizontally stratified multilayer earth. The …
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Improvement of the System maintenance of the Elevator with Microprocessor Controller
The use of computers in various control systems such as technical facilities, technological production processes, business management …
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Impact of saturation effect in iron on asynchronus motor characteristics
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Impact of Local Electricity Grid on the Size of Wind Farm
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Finite Element Input Impedance Calculation of the Loaded Wire Above an Imperfect Ground
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Energy Development of Dalmatia Region: Energy Balances and Estimation of Energy Needs till 2020.
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Energy – economic analyses of dispatching the new coal thermal plant in the Croatian Power System
The study investigates the impact of fitting the new 385 MW Lukovo Sugarje coal-fired thermal power plant into the Croatian power …
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Dynamic Losses of the MOSFET Switch in Power Converters
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Dovetailing the new coal fired thermal plant 2x350 MW in daily demand curve of croatian power system
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Determing the peak load of a household based on regional planning of energy
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Correction of the protection zone of the metallic post
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Brushless DC Motor Parametar Identification for the Purpose of the State Variables Estimation
A method of determining the brushless DC motor parameters for the purpose of the state variables estimation is presented. The parameter …
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Brushless DC Motor Drive Without Position and Speed Sensors
A method for speed and rotor position estimation of a brushless DC motor has been presented in this paper. A speed control system …
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Approach to Solving Problems of Electromagnetic Compatibility in HPP Peruca
The paper describes an approach to solving the problems of electromagnetic compatibility in the hydropower plant Peruca, which is in …
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Appllication of DPLAN software for the short-term planning of Croatian power system
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Application of Software PSPICE in Eelctrical Drives Modelling
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Analyse of distribution network 10(20) kV on Miljevacki plato for connection of small hydro power plant Roski Slap
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The current induced along a vertical metallic post and the buried horizontal wire is obtained by solving the corresponding homogeneous …
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Thermal power plant connection to Croatian transmission system on location of Dalj and Turski bok
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The influence of HPP Zakucac recinstructed units 1 and 2 parameters on Electric Power System Transient Stability
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Short circuit analysis in RHPP Velebit
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Short circuit analyses on PC in Windows Graphical Environment
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Object oriented modelling of power system
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Object Oriented Design Of Short Time Simulation And Dispatching Of Active Power In Dominantly Hydroelectric Power System
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Numerical calculation of surge wave on the conductors with lumped and distributed parameters
On selected examples, the calculation of propagation of the traveling wave in the system of conductors with concentrated and …
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Load flow and short circuit analysis on PC in Windows graphical environment
Analyzes of power flows, short circuits and ground connections form the basis of power system management and planning. This paper will …
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Lightning Induced Current on a Metallic Post-Frequency Domain Analysis
The current induced along a vertical metallic post is obtained by solving the certain homogeneus integro-differential equation with …
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Influence of short circuit location to generators transient stability in hydroelectric plants Zakucac and Orlovac
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Influence of short circuit location to generators transient stability in hydroelectric plants Zakucac and Orlovac
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Impulse Impedance of Earthing Grid with Constant Parameters
A numerical model for calculating the impulse impedance of a meshed earthing conductor has been developed. The basis of the model is a …
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Energy development of Split-Dalmatia county - Energy data base
In this work, the energy base of the substations necessary for monitoring the energy development of the Split-Dalmatia County was …
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Dynamics of Electrical Machines
The book deals with electrical machines, both direct and alternating, and the bulk of the material deals with methods of calculation …
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Digital Flux-gate Magnetometer
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Determination of type and cross-section of 110 kV cable in network of Split
Selection of type and cross-section of 110 kV cables in the Split city network
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Determination of expected temporary overvoltage on metal-oxid lightning arresters placed in a feeder bay caused by a sudden generator unloading
The issue of determining temporary overvoltages on metal oxide surge arresters, which are installed in the block transformer field, and …
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Current Distribution in Bus Shell
Based on the finite element method, a mathematical model was created for calculating the current distribution in the busbar armor, and …
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Computing of Touch and Step Voltage Using Thevenin Equivalent
A new accurate method for the calculation of touch voltage and step voltage based on Thevenin equivalent and network foot model was …
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CAD of Earthing Grids of Electric Power Substations
The paper describes the CAD of a high-voltage electrical installation grounding system, developed by the authors of this article. The …
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Application of the Extended Kalman Filter to Speed and Rotor Position Estimation of Brushless DC Motor
A method for speed and rotor position estimation in a speed control system with a brushless dc motor has been presented in this paper. …
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Analysis of the 10(20) kV network in Miljevci region between SS 35/10 kV Kalun and SS 30/10 kV Lozovac for the purpose of HPP Roski slap connection
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Analysis of sistem of vector controlled induction motor
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An Automatic Control of the Polyetilen Level in a Low-Pressure Separator
The quality of the polyetilen granulation produced in the factory DINA - Omisalj, Croatia, is strongly dependent on the variations of …
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An automatic control of the polyetilen level in a low-pressure separator
The quality of the polyetilen granulation produced in the factory DINA-Omisalj, Croatia, is strongly dependent on the variations of the …
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A Simplified Model of a Variable Speed Synchronous Generator Loaded with Diode Rectifier
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Transferred Potentials Analisys in Earthing System of 110 kV Combined Cable-Overhead Lines
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TOKSwin - Software Package for Powerflow and Short Circuit Power System Analysis (ver. 1.0 - 4.0)
The TOKSwin software package includes a user-friendly Windows environment for modeling and analyzing the operation of the power system …
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The influence of inverter supply on control laws for induction motors in steady state
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The Electronically Commutated Motor Variables Determination without Measuring Rotor Speed and Position
The paper presents a method for determining (estimating) the state variables of an electronically commutated motor (ECM). For the …
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Sensorless Speed Control System of Brushless DC Motor
In this paper a method has been presented by means of which the speed and rotor position of the BLDCM are being continuosly estimated …
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Influence of generating units number in WPP Stupisce on distribution network voltage profiles - concluding remerks
After the analysis of the connection of the wind power plant to the network of the island of Vis, this paper presents the influence of …
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Distribution Around Power cable Placed in the Trench Backfill
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Calculation and measurement of state-variable of induction motor using PLC
In the laboratory of electrical machine control, there is an electric motor drive with an asynchronous squirrel cage motor powered by a …
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Calculation and Analysis of Steady State Characteristics of Isolated Induction Generator
The calculation procedure for steady state characteristics of the capacitor excited induction generator has been described for the case …
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Brushless DC Motor Drive Controlled by Digital Signal Processor
For the needs of the FESB electrical machinery laboratory, a model of an electric motor drive with an electronically commutated motor …
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Application of the Extended Kalman Filter to Speed and Rotor Position Estimation of Brushless DC Motor
A method for speed and rotor position estimation in a speed control system with a brushless dc motor has been presented in this paper. …
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Analysis and parameter definition of renewed generators of HPP Zakucac 1, 2 and HPP Peruca
Analysis and determination of parameters of revitalized aggregates 1 and 2 of HPP Zakucac and revitalized aggregates of HPP Peruca with …
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A Digital Signal Processor System for the Estimation of the State Variables of the Brushless DC Motor
In this paper, a system for implementation of the kalman filter for the estimation of the state variables of brushless dc motors based …
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The network parameters establishment for direct sequence from the calculation of three pole short circuit currents
The article presents the procedure for the exact determination of the impedances of the direct order of the elements of the observed …
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The effect of thermal backfill on power cables heat transfer, Part II Boundary conditions and numerical results
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The effect of thermal backfill on power cables heat transfer (Part I: mathematical model) Correction of the protection zone of the metallic post
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Single short circuit current distribution in the passive part of the system consisting of a subsea optical and the submarine power cables being incident with overhead lines
The article presents an originally developed mathematical model intended for determining the distribution of single-pole short-circuit …
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Numerical analysis of potential distribution for a point current source in horizontally stratified multilayer earth
This paper describes a numerical procedure for approximating the potential distribution for a point source of direct current which is …
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The synchronous machine parameters calculation by means of Schwartz-Christoffel trasnformation
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Current distribution investigation in a short-circuited single-core cable
The article presents an originally developed mathematical model intended for researching the distribution of currents in a three-phase …
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A combined analysis of earthing grids in karstic soil
This paper presents the theoretical basis for the optimal calculation of the stationary current field of mesh earthing conductors of a …
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The stochastical calculation of the Lightning protection efficiency for a substation
The article presents an originally developed mathematical model intended for the stochastic calculation of the effectiveness of the …
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Numerical methods for analysis of earthing grids of highvoltage electrical plants and numerical methods for interpretation of geoelectrical sounding data
The scientific monograph brings together the works of the authors of the monograph. The basis is three scientific studies prepared for …
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Numerical analysis of eddy currents in the end region of a turbogenerator
This paper is an attempt to examine the complex electromagnetic conditions in the front part of a turbogenerator. The Helmholtz …
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Unconventional methods of current measurement
Unconventional methods of current measurement
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Thyristor-controlled reactor (TCR) as a static reactive power compensator
Mode of action of TCR. Mathematical model of the compensation system formed by a TCR and a parallel filter on a three-phase network. …
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Numerical modelling of the earthing grid
A set of methods for numerical modelling of the earthing grid based on the integral equation formulation is presented. All methods are …
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New mathematical model for current distribution in earthing systems
The article presents an originally developed mathematical model intended for the calculation of the distribution of single-pole …
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Measurement of temperature rise on high voltage divider OD-3
Measurement of temperature rise on high voltage divider
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Efficient use of exponential approximation of the kernel function in interpretation of resistivity sounding data
This paper describes two different procedures based on the approximation of the Stefanescu kernel function by a linear combination of …
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Direct and iterative automatic interpretation of resistivity sounding data
In this paper numerical procedure for efficient automatic direct as well as automatic iterative interpretation of resistivity sounding …
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Potential of Earthing Grid in Heterogeneous Soil
Calculation of the scalar electric potential of an earthing grid in heterogeneous soil is obtained by the finite element technique …
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Measuring and Computing System EM-1
A measuring system has been developed for measuring and registering power in the electric power system. Power is measured by active and …
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Criteria for Determining Induction Motor Stability in Cases of Decreased Supply Voltage Frequency
By introducing normalized variables, the number of coefficients in the linearized mathematical model of an asynchronous machine was …
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Calculation of insulator field using finite and infinite elements
The paper describes a numerical procedure for calculating the potential field of an axisymmetric insulator. The insulator and the …
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Analysis of the current distribution in uder sea cable carring a single short circuit current
The article presents the results of the analysis of the current state in submarine cables through which single-pole short-circuit …
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A calculation of interconnected earthing systems with inductive and conductive coupling
The article describes a method for calculating large earthing systems, which generally consist of elements such as various earthing …
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The contribution of mutual overhead lines electromagnetic coupling to loading current off from earthing in condition of single short circuit
The article presents the results of the contribution of mutual electromagnetic coupling between parallel-conducted transmission lines …
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Software basis of earthing
An analysis of different methods for calculating mesh earthing systems is carried out in order to determine the best method that can …
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Potential field of earthing in karstic soil
The calculation of the electric field of a mesh earth electrode in karst soil was performed using the finite element technique with a …
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Parallel resonant frequency measurement of compensated power system
Precise measurement of parallel resonance frequency of compensation plants in the network
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On accuracy of approximate potential profile calculation for earthing grids
The paper considers the accuracy of the approximate calculation of the potential funnel of square and rectangular mesh earth electrodes …
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Modern earthing grid design
The calculation of the electric field of a mesh earth electrode in karst soil was performed using the finite element technique with a …
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Numerical calculation of earthing electrical field in rocky ground
This paper solves the complex picture of the electric potential created by a mesh earth electrode of a high-voltage plant built on …
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On calculation of the coupled earthing electrodes interaction
The paper presents a system of near-equipotential grounding conductors treated as an electrical network. An example of a system in …
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Influence of a buried fence loop on the earth potential distribution
A system of earthing conductors in homogeneous soil is observed, consisting of a grid earthing conductor of the plant and a ring …
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Evaluation of potential grounding field in heterogeneous ground
The article discusses the problems of solving the potential field of earthing conductors of high-voltage electrical installations with …
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Computer aided interpretation of geoelectric sounding curves
The influence of soil resistance on the characteristics of the earthing conductor is emphasized and a graphical method of interpreting …
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Usporedba primjene indu-strijskog manipulatora konfiguracije RRT i RRR u pogonu za prešanje
Comparison of the application of industrial manipulator configuration RRT and RRR in a pressing plant
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Digital calculation of extended earthing systens
In diesem Referat ist eine Methode zur Berechnung solcher Erdungssysteme gegeben. Diese Methode kann auch zur Schätzung stationärer …
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Calculation of extended earthing systems
The article describes one method of calculating large earthing devices or a system of several interconnected earthing devices. In doing …
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Calculation of extended earthing systems
A prerequisite for achieving optimal and safe grounding in and around facilities with larger earth electrodes is the implementation of …
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Calculation of grounding system by finite element method
A numerical calculation of the three-dimensional current field of a ground electrode in inhomogeneous soil is given. The finite element …
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Numerical computation of static field
The first chapter of the thesis describes the basic features of the finite difference method and the finite element method. The second …
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Some experience in designing grounding grids using digital computing
The paper presents a brief theoretical basis for the method of calculation of larger mesh earthing systems (mean potential method) and …
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