Modified Z-source PV D-STATCOM for power quality improvement of EV charging station

Abstract

Over the year power quality has remained in the area of hotspot research for researchers, engineers and designers as the integration of renewables with grid involves large no. of power electronics switching devices. Many power quality improvement devices and compensation devices have been developed over the year and recently a shunt connected device called STATCOM has attracted huge amount of research because of its total compensation capability. It offers the capabilities of voltage regulation, power factor improvement, reactive power compensation and harmonic mitigation. Many researchers have worked on STATCOM, their configurations, control strategies and applications to address power quality issues. This paper discusses a modified Z- source PV D-STATCOM for mitigation of harmonics arising in a grid connected electric vehicle charging station. The operation of PV D-STATCOM is controlled with a novel controller. The power flow operating modes of the system are discussed and results are presented for each of the operating mode.

URN:NBN:sciencein.jist.2023.v11.515