Performance Analysis of Three-phase Four-wire Shunt Active Power Filter

Active power filters are the emerging devices, which can diminish harmonic pollution effectively. Most of the proposed control strategies for power quality improvements have been reviewed with regard to performance and implementation. It has been seen that there has been a significant increase in interest of active power filters and its control methods. Mathematical model of Shunt Active Power filter is implemented with Instantaneous Reactive Power theory. Performance of Three-phase Four-wire Shunt Active Power Filter is analyzed here with Proportional and Integral controller and Proportional Integral and Derivative Controller. Simulation is done in MATLAB to verify the results.