State of Art and Comprehensive Study on Charging Systems for Electric Vehicles

This article presents a comprehensive study on electric vehicle charging systems. The charging systems of electric vehicle are very important as they provide energy to electric vehicle for their operation by charging their batteries. In the area of battery charging operation, various topologies have been proposed in the literature. A discussion on various techniques has been presented in this article. Topologies in this article include both charging circuits for on-board and off-board electric vehicles. Many researchers have integrated solar power to the charging grid so that the same can be used for charging the batteries, feeding the domestic loads and also feeding power into the grid during sunshine hours in that case grid provide backup for loads at the time when solar power is not available. Many techniques reported in literature have enabled the power flow in both the directions that made the charger a multifunctional unit.