An Optimal Power Flow to Improve Power System Security by Using Particle Swarm Optimization

This paper proposes an approach to solve the Optimal Power Flow (OPF) problem with an aim to enhancing the power system security. The approach uses proposed Particle Swarm Optimization (PSO) based algorithm to acquire the optimal power dispatch meeting steady state security constraints under different loading conditions. The PSO algorithm can be used to solve many complex OPF problems are non differentiable, non linear and multi modal. This PSO based OPF algorithm computes the efficiently relieves line flow violations and optimal generation schedule under different single line severe contingencies. The proposed approach efficiency is demonstrated by carrying simulation studies on standard IEEE 30 bus system .This analysis reveals that the proposed PSO algorithm is relatively efficient and simple for solving many complex OPF problems.