变频器输出电压du/dt对电机的影响及其滤波器的设计

The Influence of Inverter,s Output Voltage du/dt on the Motor and Its Filter Design

研究了变频器输出电压du/dt对电机端电压和轴承电流的影响,在PSpice中建立了电机高频模型,并对端电压波形进行了仿真;着重研究了一种du/dt滤波器的参数设计方法,并且进行了仿真和实验验证。实践证明,该滤波器具有较好的滤波效果。

This paper studies the influence of inverter's output voltage du/dt on the end voltage and bearing current of the motor,sets up the motor high-frequency model in PSpice and stimulates waveforms of the end voltage.It stresses on the design method for the parameters of du/dt filter and verifies the simulation in PSpice.These results testify that the filter has the better effect.