永磁同步电动机调速系统新型模糊控制方法

通过分析永磁同步电动机PI控制的不足,在对传统模糊-PI混合控制策略进行改进的基础上,介绍参数模糊自整定PI控制策略。该策略吸收了模糊控制和PI控制的优点,能够按照被控制对象的性能要求,通过模糊控制规则,自动整定PI参数,实现了模糊控制没有的积分控制效应和PI控制没有的微分控制效应,相当于变系数的PID控制器的功能特性,从而提高了系统的动态响应,消除了系统的稳态误差。仿真结果表明:该方法响应快、无超调、鲁棒性强,较传统PI控制具有更好的动、静态特性。

A Novel Fuzzy Control Strategy of PMSM Speed Servo System

A novel fuzzy control strategy is proposed to control PMSM speed servo system.This scheme based on the analysis of traditional PI control and the Improvement of traditional fuzzy-PI mix control scheme.This scheme absorbs the advantage of fuzzy control and PI control.According to the target's control characteristic,this strategy can change PI parameter automatically and has the integral characteristic which fuzzy control not provide and differential characteristic which PI control not provides.So,this strategy improved the dynamic response of the system,works well with high dynamic and static performance,and has quick respons.Simulation results indicate that the fuzzy self-tuning PI control method is superior to the traditional PI controller.Works well with high dynamic and static performance,because of its advantage in quick response and good robustness.