空间电压矢量控制PWM(SVPWM）也叫磁通正弦PWM法.它以三相波形整体生成效果为前提，以逼近电机气隙的理想圆形旋转磁场轨迹为目的，用逆变器不同的开关模式所产生的实际磁通去逼近基准圆磁通，由它们的比较结果决定逆变器的开关，形成PWM波形.此法从电动机的角度出发，把逆变器和电机看作一个整体,以内切多边形逼近圆的方式进行控制，使电机获得幅值恒定的圆形磁场（正弦磁通）.-Space voltage vector control PWM (SVPWM), also known as magnetic flux sine PWM method. It generates three-phase waveforms overall effect as a precondition to approximate the ideal circular locus motor rotating magnetic field gap for the purpose inverter different switching modes actual flux generated by the magnetic flux to approximate reference circle, they compare the results of the decision by the inverter switching, the formation of PWM waveform. This method starting　the perspective of the motor, the inverter and the motor as a whole, endo polygonal approximation control the way round the motor to get a constant circular magnetic field amplitude (sinusoidal flux).