TRACTION-DRIVE-ENABLED EV-TO-EV POWER TRANSFER USING MULTI-MODE MOTOR INVERTER CONFIGURATION

Abstract

The rapid growth of electric mobility has increased the need for flexible and resilient charging solutions capable of mitigating range anxiety and enhancing power availability during emergencies. Traditional charging infrastructures and off-board V2V solutions suffer from high cost, weight, limited accessibility, and reduced energy transfer efficiency. This research proposes a Traction-Drive-Enabled EV-to-EV Power Transfer System, which utilizes a Multi-Mode Motor Inverter and the traction motor stator windings as a bidirectional power transfer interface without additional converters or mechanical reconfiguration. The approach adopts interleaved control and variable switching frequency, enabling zero-voltage switching (ZVS), minimized core and switching losses, and torque-free operation. Experimental validation through a 1.5 kW prototype demonstrates a peak efficiency of 99.47% under moderate load conditions and confirms reliable V2V power exchange between two heterogeneous EVs. The proposed technique provides a high-efficiency, compact and scalable alternative for emergency fast charging, fleet support and distributed charging networks.