ELECTRIC VEHICLE-TO-VEHICLE (V2V) ENERGY TRANSFER USING MOTOR INVERTER AND WINDING

Abstract

The increasing adoption of electric vehicles (EVs) has created a growing demand for flexible and decentralized energy management solutions. This paper presents an Electric Vehicle-to-Vehicle (V2V) energy transfer system that leverages the existing traction motor inverter and stator windings of EVs to enable direct peer-to-peer power exchange without additional DC-DC converters or external charging hardware. The proposed topology connects two EVs through their standard charging interfaces, with the source EV battery supplying DC power to its traction inverter, which converts it into controlled AC power using three-phase interleaved Pulse Width Modulation (PWM). The motor stator windings act as inductive elements for current regulation and energy coupling. On the receiving side, the transferred AC power is rectified into DC to charge the battery. A sophisticated control strategy ensures zero torque operation, preventing motor rotation during charging. The system operates across a power range of 10–150 kW with a simulation switching frequency of 220 Hz–3.1 kHz, achieving superior efficiency through single-stage power conversion, Zero Voltage Switching (ZVS), and optimized low-frequency operation. MATLAB/Simulink simulation results validate stable power flow, reduced current ripple, and effective PWM-based control. Compared with state-of-the-art V2V methods, the proposed topology demonstrates higher power efficiency, reduced hardware cost, lower switching losses, and elimination of additional mechanical braking requirements.