Based on analyzed in frequency domain,this paper researches on the mechanism of the two-stage commutation method for reduce vibration and acoustic noise in SRM with voltage-PWM control mode.

• 针对开关磁阻电动机运行的振动和噪声问题,基于频域分析方法,研究了电压PWM运行方式下,采用两步换相法降低开关磁阻电动机振动和噪声的机理。