A Novel SPWM-based Common-mode Voltage elimination Modulation Method for Dual Three-phase Motors

Common-mode voltage (CMV) is one of the major concerns in modern motor drive techniques. To alleviate the CMV issue, a series of different pulse width modulation (PWM) methods have been proposed, which are particularly effective when the motor phases have even numbers, such as six phases. This paper proposes a new modulation method based on the traditional sinusoidal PWM (SPWM) to fully eliminate the CMV in a dual-three-phase motor drive …