Application of differential evolution to passive shunt harmonic filter planning

Abstract

This paper presents a refined differential evolution (RDE) for passive shunt harmonic filter planning. The purpose is to minimize total costs while satisfying various practical constraints. The substation harmonic voltage sources and load harmonic current sources are considered simultaneously. In addition, practical constraints such as the voltage magnitude limit, total harmonic distortion and the commercially available discrete sizes of the capacitors can be accounted for. The RDE approach together with evolutionary programming (EP) were tested on a 9-bus distribution system. Results obtained show that the proposed RDE method can provide a highly optimal solution within a reasonable time.