Review and comparison of bi-directional AC-DC converters with V2G capability for on-board EV and HEV

In this paper, recent topologies for bi-directional AC-DC converters are reviewed. The reviewed topologies are efficient, isolated and compact and can be used as an on-board battery charger for EV or HEV. It is assumed that each converter is made up of a set of building blocks and choice of these building blocks results in different topologies. The topologies are divided into two families: single-stage and two-stage. To compare the topologies, two converters from the two families are chosen and compared in terms of efficiency, number of the devices and rating of them.