Design and Implementation of a High-Efficiency Motor Driver for PMSMs in Electric Vehicle Applications

This paper presents the design and implementation of a 5 kW motor drive for electric vehicle (EV) applications using a Permanent-Magnet Synchronous Motor (PMSM). The system combines a modular hardware architecture power board, isolated gate driver boards, and a control board based on Texas Instruments’ (TI) TMS320F280049C with a Field Oriented Control (FOC) strategy and Space-Vector PWM (SVPWM). Bench and vehicle tests demonstrate stable torque control, sinusoidal phase currents, accurate rotor position feedback, and overall efficiency exceeding 90%, validating a low-cost, customizable EV drive platform suitable for research and competition teams.