感应电动机直接转矩控制系统的研究

Study on Direct Torque Control System of Induction Motor

介绍了电动机直接转矩控制的基本原理,根据传统直接转矩控制存在的缺点以及对电动机调速性能的要求,改变对定子磁链的调节方式,使定子磁链轨迹近似为一圆形,对转矩采用三值调节器进行调节,以实现转矩的快速调节。利用MATLAB的SIMULINK进行了仿真,得到了令人满意的结果。

The basic principle of direct torque control of the motor is presented. According to the disadvantages of traditional direct torque control and the requirements of speed regulating motor performance, the adjusting mode to the stator linkage is changed to approximate the locus of the stator linkage to a circle. The torque is adjusted by three- valued regulator in order to achieve quick torque adjustment. Imitation is done by SIMULINK in MATLAB and satisfactory result is obtained.