Optimal harmonic filter topology applied in HV and EHV networks using particle swarm optimization

Abstract

Passive shunt harmonic filter banks have proven to be an effective method for reducing harmonic distortion in HV and EHV networks, while providing the necessary volt-ampere-reactive power support and voltage support. Previous work in this area has provided information regarding the design and application of harmonic filters as well as discussion of the different filter topologies that are typically employed. However, there is a lack of information in the area of optimal filter sizing and topology selection when the power system is networked. In this paper, a novel approach is presented to optimally solve the filter sizing and topology selection problem using the Particle Swarm Optimization algorithm. The proposed approach is based on the minimization of a multi-objective optimization function while considering the effects of existing shunt capacitor banks and network topology changes. The effectiveness of the proposed method is shown via a numerical example. Simulation results demonstrate the superior performance of the C-Type harmonic filter bank.