摘要
针对异步电动机直接转矩控制(DTC)系统在低速时存在转矩脉动等缺点,提出了一种改进离散空间矢量调制的方法,仿真结果表明,该控制方法能有效地减小转矩脉动,改善定子磁链和电流的波形,改善电机的低速性能。
To reduce the low speed torque ripple of induction motor based on direct torque control(DTC),a new control strategy-improved discrete space vector modulation is proposed.The simulation shows that it can reduce the torque ripple,improve the waveform of stator flux and current and improve the performance of induction in low speed.
出处
《电气技术》
2008年第2期58-61,共4页
Electrical Engineering
关键词
直接转矩
转矩脉动
离散空间矢量调制
direct torque control
torque ripple
discrete space vector modulation
