基于SVPWM永磁同步电动机直接转矩控制技术

Simulation study on DTC system of PMSM based on SVPWM

分析了永磁同步电动机的数学模型,并提出了基于空间电压矢量脉宽调制(SVPWM)的永磁同步电动机直接转矩控制系统.介绍了定子磁链、转矩和电压矢量的估算方法,并在Matlab/Simulink环境下构建了系统的仿真模型,在此基础上进行了大量仿真研究.仿真结果表明,系统具有良好的动、静态特性.

This paper analyzes the mathematical model of permanent magnet synchronous motor（PWSM） and presents a direct torque control system based on space vector pulse width modulation（SVPWM）.Simultaneously,the stator flux linkage,torque and voltage vector estimation methods are introduced in this paper,and the system simulation model is established in Matlab/Simulink environment.On this basis,a lot of simulation experiments are studied and the results show that the system has good dynamic and static performances.