矩阵变换器供电的异步电动机DTC-SVM控制

提出一种由矩阵变换器供电的异步电机直接转矩控制-空间矢量调制(DTC-SVM)方法.该控制系统结构简单,转矩脉动小,输入功率因数为1.通过使用矩阵变换器空间矢量调制技术及异步电机的直接转矩控制技术,两种控制技术的优点得到了综合.用MATLAB软件对该控制系统进行了仿真测试,由仿真的矩阵变换器的输入、输出波形及异步电动机的速度、转矩波形证实了控制策略是有效可行的,系统具有良好的动态性能.

DTC- SVM Control of Induction Motors Fed by Matrix Converter

A novel direct torque control-space vector modulation(DTC-SVM)method for matrix con- verter drives was proposed,which is characterized by a simple structure,minimal torque ripple and unity input power factor.It is possible to combine the advantages of matrix converter with the advantages of the DTC strategy by using space vector modulation algorithm of matrix converter and direct torque control strategy of induction motor.The proposed control strategy has been tested through simulations with MATLAB tools. The input/output waveforms of matrix converter and the speed/torque responses of induction motor show the effectiveness of the control scheme and good dynamic response.