An integrated topology for battery charging and motor driving in electrical vehicle

For a plug-in vehicle, the inverter and sensors used in driving circuit are not working during the battery charging. This paper proposed an integrated circuit to combine the inverter and charger. The three phase inverter can be used as a single phase rectifier in charging circuit. The circuit is reconfigured by a relay for the driving and charging operation. Space voltage vector pulse width modulation (SVPWM) is used as a control strategy in driving mode. The simulation based on the topology prove that the circuit can drive the motor and charge the battery. This topology can improve the power density and reduce the circuit size.