Interactive PV-Shunt Active Power Filter with Fuzzy-MPPT Controller for Power Quality Improvement

This paper presents a three-phase shunt active power filter connected to a Photovoltaic (PV) source by the means of DC-DC boost converter for total harmonic distortion (THD) reduction, reactive power compensation, and PV power injection. For harmonic current estimation instantaneous reactive power theory is used. A high gain anti-windup PI controller is used to control the voltage across the dc-link. A maximum power controller based on fuzzy logic is used to track the maximum point. The presented system is validated through an extensive simulation carried out using Matlab/Simulink under various operating scenarios.