基于SVPWM永磁同步电机磁场定向控制算法的仿真

Simulation of PMSM Field-Oriented Control Based on SVPWM

空间电压矢量脉宽调制(SVPWM)技术具有线性范围宽、高次谐波少、易于数字实现等特点。基于转子磁场定向控制算法以及空间电压矢量脉宽调制技术使得永磁同步电机能够获得和直流电机媲美的性能。本文分析了永磁同步电机的数学模型,建立了转子磁场定向矢量控制的系统模型,并在MATLAB/Simulink环境下对控制系统进行了仿真实现。仿真结果符合电机实际运行特性,为实际控制系统的设计提供了理论依据。

The space vector PWM has the character of wide linear range, little higher harmonic and easy digital realization. The FOC theory and SVPWM technique make the PMSM can achieve the performance as good as DC motor. The mathematical model of PMSM is analyzed and the system model of FOC vector control has been established. The control system has been also simulated by MATLAB/Simulink. The simulation results accord with the real motor＇s performance and provide the theory basis for the designing of real system.