Optimal Power Flow Application to Composite Power System Reliability Analysis

This paper presents a method which applies an efficient optimal power flow model to composite power system reliability analysis. It is based on the contingency enumerative approach. The optimal power flow is the premier tool for contingency effects analysis. The method used here incorporates the process of economic dispatch, observes the operating constraints and determines tlie amount of load curtailment after exhaustion of all other options. The optimization problem is solved either with the simplex method or with an interior point algorithm. Tlie perforniiance evaluation of the optimal powcr flow model for a large power system is provided. Finally, the reliability computations are illustrated w i h a simple example.