永磁同步电机的模糊控制研究

Research on fuzzy control of PMSM

永磁同步电机(PMSM)采用传统PID控制器时,在面对特定参数的情况下,控制系统能够取得良好的控制效果.但当系统参数发生变化时,需要对PID控制器进行重新设计,使其适应各种情况.为了解决这个问题,本文提出了一种新型的模糊PID控制器,它可以随时调节PID参数,对比例、积分、微分环节进行自调整,使得永磁同步电机能够快速跟踪输出量.通过仿真实验表明,模糊PID控制器具有响应速度快、稳定精度高等优点.

Good performance can be achieved if the PID controller＇ s parameters match with the control system.However,the parameters of PID have to be modified when the system＇s parameters change,which indicates its lack of robustness.In response to this, a fuzzy PID controller is designed in this paper to modify the PID controller＇s parameters, which makes PMSM track output in time.Simulation results show that the fuzzy PID controller has a lot of advantages, such as fast response, high accuracy, etc.