永磁同步电动机SVPWM和电流滞环控制仿真分析

摘要

在永磁同步电动机（PMSM）的数学模型基础上，阐述了电压空间矢量脉宽调制（SVPWM）和电流滞环控制的原理，用Matlab／Simulink软件分别建立了永磁同步电动机SVPWM和电流滞环控制的速度环、电流环双闭环模型，并给出了利用Simulink的实现方法。通过对两种控制方法的仿真结果进行对比分析，证明了SVPWM比电流滞环控制具有更好的鲁棒性和快速性，为永磁同步电动机控制系统的设计提供了理论基础。%On the basis of the mathematical model of Permanent Magnet Synchronous Motor ( PMSM) ,introduces the principle of Space Vector Pulse Width Modulation ( SVPWM) and the current hysteresis control ,used Matlab/Simulink established the per-manent magnet synchronous motor SVPWM and current hysteresis control of double closed -loop of speed loop and current loop model respectively .Given its Simulink implementation method .By analyzing and comparing two control methods of the simulation results ,proves SVPWM has better robustness and rapidity than current hysteresis control ,lays the theory basis of designing PMSM control system.