Regenerative control method without DC-DC converter for electric vehicle application

Abstract

In the EV system operating regenerative mode without bi-directional DC-DC converter, 3-phase PWM inverter should charge the battery. At this time, regenerative torque reference for braking has to output torque reference in order to charge the battery. This paper proposed the regenerative control method controlling the voltage and current of battery through the regenerative power control at regenerative braking torque corresponding to the driver's brake control.