A Computational Contribution to Analyse the Connection of an Independent Power Producer to the Grid

Abstract

The main objective of this paper is to present the modelling and performance of a synchronous generator connected to a distribution system to study the impacts of the expansion of distributed generation. Computer models for synchronous machine and its speed governor and voltage regulator were developed in the Alternative Transients Program (ATP) in its interface called ATPDraw. The implementation of such modelling has been developed in order to meet the requirements of companies in the energy sector, as well as to make a visual interface of easy understanding. To validate these modelling, some performance studies are realized for the synchronous generator of an Independent Power Producer (IPP) connected to the distribution system. The roles played by the speed governor and voltage regulator are highlighted when a severe contingency such as a three phase short-circuit occurs in the system.