Application of harmony search to optimal power flow problems

This paper presents the use of the harmony search method for solving optimal power flow problems. The harmony search method mimics a jazz improvisation process by musicians in order to seek a fantastic state of harmony. To assess the searching performance of the proposed method, a 6-bus test power system was challenged. Satisfactory results obtained from the proposed method were compared to those obtained by genetic algorithms, particle swarm optimization, and the quasi-Newton with BFGS formula.