Calculation of maximum current that raises the potential of Orlovac power plant during single-phase short cicuit using finite element technique

Abstract

This paper presents an algorithm for calculating short circuits in a power system using the finite element technique. The elements of the power system are modeled on the basis of mathematical models that are natural for the stationary analysis of short circuits in a power system. For each type of finite element, a local system of equations is derived that serves to connect the finite element with the rest of the network. On the example of a single-pole short circuit in a network, the results obtained using the finite element technique are tested with the results obtained using the symmetrical components method. It is important to emphasize the observed simplicity and generality in the development of a software package using the finite element technique compared to symmetrical components. Using finite elements, it is possible to easily solve much more complicated problems, which is not the case with the symmetrical components method.

Ivica Jurić-Grgić

Full Professor | Department of Theoretical Electrical Engineering and Modelling

Researcher and full professor at the Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture in Split. His research focuses on numerical modeling of electromagnetic transients in power systems, with particular emphasis on the development of advanced numerical methods for analyzing electromagnetic transients in multi-conductor transmission lines. His work includes the application of finite element techniques for transient stability analysis of power systems, as well as the enhancement of models for harmonic and transient analysis of grounding systems.

Rino Lucić

Full Professor

Dr. sc. Rino Lucić is a retired professor from the Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture in Split. Throughout his career, he taught courses at all study levels and actively participated in the realization of numerous scientific-research projects. As an author or co-author, he has published 41 scientific papers and 16 professional articles, with research interests spanning numerical modeling, transmission lines, finite element method, and power system transient analysis.