Author(s)

Lei Wu, Haiming Li, Zhengyang Wu, Chenbin Wu

Shanghai University of Electric Power, Shanghai, China.

In this paper, the efficient population utilization strategy for particle swarm optimization (EPUSPSO) is proposed to solve the economic load dispatch (ELD) problem of power system. This algorithm improves the accuracy and the speed of its convergence by changing the number of particles effectively, and improving the velocity equation and position equation. In order to verify the effectiveness of the algorithm, this algorithm is tested in three different ELD cases of power system include IEEE 3-unit case, 13-unit case, and 40-unit case, and the obtained results are compared with those obtained from other algorithms using the same system parameters. The compared results show that the algorithm can find the optimal solution effectively and accurately, and avoid falling into the local optimal problem; meanwhile, faster speed can be ensured in the case.

Economic Load Dispatch, Efficient Population Utilization Strategy, Particle Swarm Optimization, Power System, Valve Point Effect

Wu, L. , Li, H. , Wu, Z. and Wu, C. (2015) Economic Load Dispatch Based on Efficient Population Utilization Strategy for Particle Swarm Optimization. International Journal of Communications, Network and System Sciences, 8, 367-373. doi: 10.4236/ijcns.2015.89035.