Vehicle to Grid Technology in a Micro Grid Using DC Fast Charging Architecture

Abstract

Batteries from electric vehicles (EVs) have the potential to be used in microgrids as energy storage devices. By storing energy when there is excess (Grid-to-Vehicle, or G2V) and returning it to the grid (Vehicle-to-Grid, or V2G) when needed, they may aid in micro-grid energy management. The development of appropriate control systems and infrastructure is necessary to make this idea a reality. This study presents an architecture for establishing a V2G-G2V system in a micro-grid employing level-3 rapid charging of EVs. An EV interface is provided via a dc rapid charging station in a modeled micro-grid test system. V2G-G2V power transmission is shown via simulation research. According to test findings, EV batteries are actively regulating power in the microgrid via G2V-V2G modes of operation. The controller provides excellent dynamic performance in terms of dc bus voltage stability, and the charging station design assures low harmonic distortion of grid injected current.