Comparison between an AC-DC matrix converter and an interleaved DC-dc converter with power factor corrector for plug-in electric vehicles

Abstract

Passive three-phase rectifier circuits are very popular for ac-dc power conversion. However, they do not have the capability to reverse the power flow, which is demanded by some recent potential smart-grid applications, such as vehicle-togrid (V2G) power transfer. This paper compares two structures of reversible battery chargers, i.e., an interleaved dc-dc converter fed by a three-phase power factor corrector rectifier and a three-phase ac-dc matrix converter, which may be suitable for plug-in electric vehicles. The comparison aims to estimate the power losses, the power capability and the size of the converters under common requirements.