Author(s)

V. Parimala¹, S. Chenthur Pandian², D. Ganeshkumar¹

¹Department of Electrical and Electronics Engineering, P. A. College of Engineering and Technology, Pollachi, India.
²Department of Electrical and Electronics Engineering, SNS College of Technology, Coimbatore, India.

This paper describes the mitigation of harmonics in source and neutral current in three phase four wire system based on 4-leg shunt active power filter under balanced and unbalanced load conditions. Particle Swarm Optimization (PSO) and conventional Proportional Integral (PI) controller are used as control techniques to analyze the control performance of 4-leg shunt active power filter. The synchronous reference frame (SRF) method is used to extract reference current in 4-leg shunt active filter. The Hysteresis Current Controller (HCC) is used to generate gate pulses for Voltage Source Inverter (VSI) based 4-leg shunt active power filter. The proposed PSO technique gives less percentage of Total Harmonic Distortion (THD) value in source and neutral current and settling time of the DC capacitor voltage compared to conventional PI controller technique. The model of the proposed system performance was validated using MATLAB/Simulink environment.

Hysteresis Current Controller, Particle Swarm Optimization, Shunt Active Power Filter, SRF Method

Parimala, V. , Pandian, S. and Ganeshkumar, D. (2016) An Efficient Particle Swarm Optimization Technique for 4-Leg Shunt Active Power Filter. Circuits and Systems, 7, 1546-1559. doi: 10.4236/cs.2016.78135.