Research on Performance Improvement for STATCOM with LCL Filter Based on ABC-Pareto Multi-Objective Optimization Algorithm

The parameters of LCL filter directly affects the reactive power compensation performance of STATCOM. This paper takes the STATCOM with LCL filter as the research object. A Pareto multi-objective optimization algorithm based on artificial bee colony algorithm (ABC-Pareto algorithm) is proposed to choose some suitable LCL filter parameters. The multiple performance indicators of STATCOM are considered, such as the dynamic response speed, the attenuation capability of high-order harmonic current and the loss of fundamental frequency reactive compensation current. Based on these performance indicators simultaneously, ABC-Pareto algorithm is utilized to choose some more suitable LCL filter parameters by iterative calculation. Parameters obtained by optimization algorithm will improve the reactive compensation performance of STATCOM. The results of 20kVar STATCOM simulation model can verify the superiority and effectiveness of the optimized parameters by ABC-Pareto algorithm.