Abstract
This paper is aimed to design and study the performance of shunt active power filter based on Particle Swarm Optimization Technique (PSO) which is used to find out the optimal gains of PI controllers. PSO technique is designed to control the position and velocity of updating particles till reaches the optimum set. Modified synchronous reference frame theory is implemented to excerpt the reference current waveform. Intensive simulations are conducted based on Matlab/Simulation Tool. Design of shunt active power filter is agree with the proposed results. Optimal control circuit is quite superior as it is more effective even with the presence of non-linear loads and has a reasonably better dynamic response.