基于MATLAB永磁同步电机控制系统的两种仿真模型及其比较

Two Kinds of Simulation Models and Their Comparison of the Permanent Magnet Synchronous Motor Control System Based on MATLAB

本文介绍了空间矢量脉宽调制（SVPWM）的基本原理，并在MATLAB／SIMULINK环境下构建了分别基于SVPWM和电流滞环跟踪PWM（CHBPWM）的永磁同步电机控制系统的仿真模型。仿真实验表明，SVPWM模式比CHBPWM模式的转矩波动小。电流谐波也较小。

This paper introduces the fundamental principle of space vector pulse width modulation （SVPWM）and the simulation models of permanent magnet synchronous motor（PMSM）control system based on SVPWM and CHBPWM respectively, which are built in the environment of MATLAB/SIMULINK. The simulation results show that the SVPWM mode has lower torque fluctuation and smaller current harmonic than CHBPWM mode.