Drive system of IPMSM with bidirectional DC/DC converter for battery-powered electric vehicles

Abstract

This paper presents an electric propulsion system (EPS) for a battery-powered electric vehicle (EV). The drive system of interior permanent magnet synchronous motor (IPMSM) with an interleaved bidirectional DC/DC converter is implemented. The three-phase voltage source inverter (VSI) is controlled using a space vector modulation (SVM) based on direct torque control (DTC) technique. Voltage and current control schemes are applied to regulate the DC-link voltage and maintain current sharing between DC/DC converter modules respectively. The performance of the proposed EPS is verified and discussed based on obtained simulation results.