Economic load dispatch in power system using PSO

Abstract

The economic load dispatch is an integral part of power system. The leading purpose is to minimize the fuel cost of power plant without violating any system constraints. Many conventional methods are applied to elucidate economic load dispatch through mathematical programming and optimization technique. The popular traditional method is the lambda-iteration method. Many heuristic approaches applied to the ELD problems such as dynamic programming, evolutionary programming, genetic algorithm, artificial intelligence, particle swarm optimization etc. In this study, two cases are taken named as three unit system and six unit system. The fuel cost for both systems compared using conventional lambda-iteration method and PSO method. These calculations are done for without transmission losses as well as with transmission losses. In the end, the fuel cost for both methods compared to analyse the better one from them. All the analyses are executed in MATLAB environment.