Fuzzy based hybrid PV-wind systems using active power filter for grid-interconnection

A Fuzzy logic controller based Shunt Active Power Filter (SAPF) for Hybrid Renewable sources for Grid-interconnection has been proposed. SAPF is shunted at the Point of Common Coupling (PCC) with the existing power system to have compensation among power quality issues. The proposed converter topology also feeding the Maximum Power from the PV-Arrays and Wind Energy System into the Grid. The advancement of the 4-leg VSI with the proposed controller is found to be more prominent & sufficiently mitigate power quality issues under all Non-Sinusoidal situations. SAPF current reference signals are obtained by Synchronous Reference Frame (SRF) scheme. Matlab Simulink results showed that the proposed scheme can effectively compensate the harmonic currents and improve Power Quality.