Review and Novel Options of Three-Phase Integrated Battery Chargers for EVs

Abstract

Looking back in the past decade, an intensive research program on the development of the integrated battery charger for electric vehicles (EVs) is being carried out. The battery charger is made with the already existing component inside the EVs such as electrical machine (three-phase or multiphase, PMSM or IM), inverter and DC-DC converter, when the traction mode is not engaged. The integrated battery charger can be a slow charger for those connected to a single-phase grid and a fast charger for those connected to a three-phase source. This paper provides a review of fast three-phase integrated battery charger and presents the novel charger options that could bring significant advantage on the development of EVs. Moreover, a comparison between the novel options and the proposed chargers in the references are offered in this paper.