直接转矩控制系统的自适应模糊控制方法的研究

Research of the Adaptive Fuzzy Controller of the Direct Torque Control System

针对基于直接转矩控制的异步电动机在低速运转时存在较大的转矩脉动和磁链脉动的问题,提出一种新的控制方法。方法在传统直接转矩控制的基础上,对异步电动机的转矩和磁链引入自适应模糊控制策略,使其脉动达到最小。实验结果表明该方法能够有效地解决转矩脉动和磁链脉动问题。

Due to the large torque ripple and the flux linkage ripple of induction motor based on direct torque control, especially at a low speed, a new control strategy is proposed. On the basis of conventional direct torque control, a torque ripple and flux linkage ripple minimum controller is introduced in the strategy in order to decrease torque ripple. The simulation shows that it can get good torque performance and flux linkage performance.