Efficient power distribution in a dual-motor electric vehicle using a five-leg inverter

This paper investigates a novel electric vehicle (EV) propulsion system utilizing a single five-leg inverter (FLI) to control two permanent magnet synchronous motors (PMSM) for improved stability and efficiency. To achieve this, an electric differential (ED) algorithm is implemented within the control scheme. The system employs space vector pulse width modulation (SVPWM) and field-oriented control (FOC) with a merging algorithm to optimize switching sequences for the FLI. The effectiveness of the proposed system is evaluated through comprehensive simulation studies, analyzing speed, torque, and current control. The simulation results demonstrate significant improvements in system stability and robustness compared to conventional two-inverter approaches. This research suggests the feasibility of a single FLI architecture for powering dual motors in EVs while maintaining exceptional stability and control performance.