Comparative Analysis of different Variants of Particle Swarm Optimization for Economic Load Dispatch Problem

The determination of optimal power generation by generating units in an interconnected power system at the least possible cost, subject to power balance and limits of generation constraints, is called Economic Load Dispatch (ELD) problem. Different variants of Particle Swarm Optimization (PSO) applied on the problem of ELD are compared in this paper. The various methods viz - Conventional PSO, Simulated Annealing based PSO (SA-PSO), PSO with Time-Varying Acceleration Constant (PSO-TVAC) and Adaptive PSO (APSO). These methods are tested on a six-generator electrical power system. A comparative analysis of all these methods has been done on the basis of their ability to give an optimum solution, convergence