异步牵引电动机低速区控制方法的比较

Comparison of the control strategies of asynchronous traction motor in low-speed range

文章给出了异步牵引电动机在低速区基于开关表的传统直接转矩控制(ST-DSC)和间接转矩控制(ISC)的原理框图,以及间接转矩控制和基于空间矢量调制的直接转矩控制(SVM-DSC)的数学关系,并用Matlab/Simulink对三种控制方法的转矩脉动和电流脉动进行了对比仿真研究,根据仿真结果讨论了在系统设计时选择控制策略的依据。

The control block of traditional Direct Self-Control based on switching table （ST-DSC） and Indirect Self-Control （ISC） in low-speed range and the mathematical formula of the Indirect Self-Control and Space Vector Modulation DSC （SVM-DSC） are presented. The torque and current ripples relative to those schemes are researched by Matlab/Simulink. How to select from them in system design is discussed.