Application of Modified Harmony Search and Differential Evolution Optimization Techniques in Economic Load Dispatch

摘要

Present day civilization faces a never-ending growth for the demand of electricity. This necessitates an increase in the number of power stations and their capacities and consequent increase in the power transmission network connecting the generating station to load centers. Depending upon the load demand, the electrical generators operate under various generating conditions. The generating costs of different power plants are also different. So it is very much important to operate the power plant at optimal generation with minimum cost condition. In this paper, an attempt has been made in minimizing the cost function and the transmission line losses utilizing Modified Harmony Memory Search (MHMS), and Differential Evolution (DE) optimization techniques for a three-unit system under known maximum and minimum operating region of each generating station.