基于模糊PID的永磁同步电机矢量控制仿真

摘要

Based on traditional PID (Proportion-Integral-Derivative),such weaknesses as slow response, low stability and large torque pulsation occur in the PMSM (Permanent Magnet Synchronous Motor) vector control systems. By applying the fuzzy PID controller with parametric self-tuning function for system improvement, a system simulation model is established under Matlab/Simulink environment. Accordingly,it is found form simulation results that fuzzy PID controller can significantly enhance the system robustness so as to meet the demands on high precision and fast response for PMSMs.%基于传统固定增益PID (Proportion-Integral-Derivative)的永磁同步电机矢量控制系统,存在着响应速度不快、稳态性能较差、转矩脉动较大的缺陷.针对这一问题,利用具有参数自整定功能的模糊PID控制器对矢量控制系统进行改进,并在MATLAB/Simulink环境下建立了系统仿真模型.仿真结果表明:模糊PID控制器可显著提高系统鲁棒性,很好地满足了永磁同步电机(PMSM)高精度、快响应的控制要求.