A Non-isolated Onboard Charger for Electric Vehicle

Abstract

A non-isolated onboard charger (OBC) using the interleaved bidirectional buck/boost converter is presented in this work. The bidirectional operation of the charger enhances the serviceability of light electric vehicles (LEVs). During the peak load time, it gives the power to the grid. Moreover, it behaves as the power backup source for the home loads, i.e., vehicle to home operation (V2H). The proposed OBC operates to deliver 1kW power. The interleaved operation is implemented to lessen the ripples from the battery current.