基于空间矢量调制的电励磁同步电动机DTC研究

本文将空间矢量调制型直接转矩控制(SVM-DTC)策略引入到同步电动机控制系统中,利用优化的空间矢量组合实现了转矩、磁链误差的精确补偿,同时保证了功率器件开关频率恒定。研究了基于改进电压模型的电励磁同步电动机定子磁链计算方法以及转子励磁控制方式。最后使用Matlab/Simulink环境对所使用的方法进行了仿真验证。

The DTC Study of Electrically Excited Synchronous Motor Based on SVM

The space vector modulation direct torque control(SVM-DTC) strategy is introduced into the synchronous motor control system in this paper.The torque and flux error are compensated accurately by the optimized space vector,at the same time the switching frequency of the power devices is ensured to be constant.The synchronous motor stator flux calculation method and the rotor excitation control mode based on the improved model of electrical excitation voltage are studied.Finally the methods used in this paper are simulated in Matlab/Simulink.