Appllication of DPLAN software for the short-term planning of Croatian power system

January 1998

Abstract

The basic role of the electric power system (hereinafter referred to as the EES) is to deliver a certain amount of electricity of prescribed quality to consumers, under acceptable economic and safety conditions. Safe and economical supply of electricity to consumers is the result of the joint work of all parts of the EES, and therefore all power plants, regardless of whether a power plant is fully loaded, partially loaded or in rotating or cold reserve. They all have their role in the system and are all needed by the system. The method of their engagement depends on their characteristics, availability, system status, import/export capabilities, etc. The basic principle of engaging power plants is to achieve reliable supply to consumers at the lowest possible cost. The decision on the production of each individual power plant is made by the dispatching service, which carries out rational exploitation of the system based on previously mutually agreed rules. Therefore, the electric power dispatching service has a decisive influence on the variable costs of electricity production. The most important part in the planning phase of the system operation is short-term operational planning, i.e. the preparation of the power plant schedule for the next day. It includes the forecast of consumption and inflow, planning of exchange and the work schedule of all power plants in the system by hours. A year ago, a systematic project was launched by the Energy Institute Hrvoje Pozar to create appropriate applications and databases that would serve for operational planning and analysis of the operation of the EES. As one of the first applications, a software system for short-term planning of the system’s operation was created. The first phase of this software system was implemented according to a simulation-experimental model, and space was left for possible expansion with appropriate optimization modules. The software system under the working title DPLAN was implemented by the company FRACTAL in cooperation with the Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture in Split, EI Hrvoje Pozar, RDC Zagreb and the Dispatch Center Split. The program is currently in the testing phase at RDC Zagreb, and preparations are underway to continue work in terms of improving the program, adding optimization modules, creating a database, etc. This article provides a brief description of the functionality of the program, and an example of applying the program to creating a timetable.

Type

Report