减小感应电动机直接转矩控制系统转矩脉动的方法

针对基于直接转矩控制的感应电动机在低速运转时存在较大的转矩脉动问题，提出一种新的控制方法。该方法是在利用传统直接转矩控制原理的基础上，引入一个转矩脉动最小化控制器，以减小感应电动机的转矩脉动。仿真试验说明了该方法能够很好解决转矩脉动问题。

n Approach to Decrease Torque Ripple of Inductance MotorBased on DirectTorque Control

Due to the large torque ripple of inductance motor based on direct torque control，especially in alow speed，this paper proposes a new control strategy．On the basis of conventional direct torque control，atorque ripple minimum controller is introduced in the strategy in order to decrease torque ripple．The simulationshows that it can get good torque performance．