基于转矩预测的直接转矩控制系统的实现

Realization of direct torque control system based on torque prediction

针对感应电动机直接转矩控制低速时转矩脉动大的问题,分析了转矩脉动的原因,并提出了一种转矩预测方法,实验结果表明,该方法能有效地减小转矩脉动、改善定子磁链和电流波形。

To reduce the low speed torque ripple of induction motor based on direct torque control （DTC）, a new control strategy-torque predict is proposed. The experiment shows that it can reduce the torque ripple ,improve the waveform of stator flux and current.