Fuzzy Logic Controlled PV Based Boost Converter Fed Shunt Active Power Filter with Maximum Power Point Tracking

High source current harmonics is a major problem faced by Electrical Engineers in power systems. Shunt Active Filter is a popular device in FACTS family generally used to reduce the source current harmonics. The non linear loads in a multi bus system demand reduction in the harmonics so that the line losses and heat can be reduced. The objective of this work is to reduce harmonics in the lines. This paper proposes single Boost converter fed fuzzy logic controlled shunt active filter system to improve the power quality and to obtain maximum power from PV system. A three phase rectifier with large capacitor is considered with non linear load. The simulation studies are performed in MATLAB/SIMULINK for PI and FLC controlled systems and they are compared. The Simulink results obtained show reduction in current THD. The FL controller is observed to show better characteristics than other controllers. Key wards: Shunt Active Power Filter(SAPF), Fuzzy Lozic Controller(FLC), Preportional & Intigral controller(PI), Maximum Power Point Tracking (MPPT)