The Currently Applied Method and Program of Estimating Reliability of the Polish Power Grid (PPG)

摘要

This paper comprises results of the investigations about the influence of interdependent developing disturbances and switching operations on the reliability of the electrical power system. In the evaluation of the influence of the supply reliability of electric energy within the reliability of the technological process allowance is made for essential technological influence quantities besides for the structure and function of the electric energy system. In connection with the new Power Engineering Law passed in Poland and some reliability standard requirements concerning the supply of receiver from transmission and distributed network the profile of PPGC nodes has been made. The practical method and computer program for calculations of basic reliability factors used in Poland are presented. Finally the results of calculation for PPGC are given. The reliability of the electric energy supply process can be improved by change of electrical parameters and also by an increase of the temporary availability of elements.