Implementation of photovoltaic integrated unified power conditioner for power quality enhancement

This paper presents a photovoltaic (PV) integrated unified power conditioner (UPC) system that provides power quality enhancement as well as real power sharing. The shunt inverter of the PV integrated UPC system provides compensation for the harmonics present in the source current and reactive power while the series inverter compensates for voltage harmonics, voltage sags and swells. A novel control algorithm is used to operate the inverters of unified power conditioner integrated with photovoltaic generation scheme to improve the power quality at the Point of Common Coupling (PCC). The control scheme for PV integrated UPC is verified using MATLAB/ Simulink and validated experimentally using laboratory prototype.