Contingency Selection and Ranking Approach for Power Systems

Abstract

In this paper, an efficient technique based on ranking lines and generators outage contingencies according to their severity has been developed. The technique is based on a defined performance index (PI). The elements of this PI are obtained by calculating the generators and lines, outages distributing factors instead of repeating the load flow analysis. Results for the Saudi Electric Company (SEC) in the central operating area have been obtained with the proposed technique and are compared with those obtained by the conventional ac-dc load flow methods.