谐波转矩最小化的电流型逆变器-感应机系统

Harmonic Torque Minimization of Current Source Inverter-Fed Induction Notor System

采用低频谐波最小化方法,对常规的六拍晶闸管电流源逆变器输出电流波形实施定模脉宽调制(PWM).用离线化确定电流 PWM 波形的最优开关角,并以8086微处理器实现之。实验结果证明,该方法能明显降低感应电动机低频时的转矩脉动,扩大调速范围.

The paper presents the PWM method of harmonic torque minimi- zation of current source inverter system.It is implemented in 8086 micropo- cessor by determining the switching angle of PWM wave.The experimental result shows that the harmonic torque ripple can be Significantly reduced and the adjustable speed range enlarged.