基于模糊PID的无刷直流电机调速系统的建模与仿真

Model and Simulation of Brushless DC Motor Speed Control System Based on Fuzzy PID Control

无刷直流电机控制系统是一种多变量、强耦合、非线性、时变的复杂控制系统,传统的PID控制很难实现无静差控制。基于模糊PID的电机控制,利用无刷直流电机的电压、转矩和转速方程,通过模糊原理对PID参数进行模糊化,实时调节PID的参数,从而实现对电机转速的高精度控制。仿真结果表明,采用模糊PID控制方法控制无刷直流电机,系统响应速度快、无超调、控制精度高。

BrushIess DC motor controI system is a muIti-variabIe, strong coupIing,nonIinear,time-varying compIex controI system. TraditionaI PID controI is difficuIt to achieve astatic controI.This paper studys the motor based on fuzzy PID controI,the use of voItage of brushIess DC motor speed and torque equations,through the principIe of fuzzy PID parameters,reaI-time con-troI motor speed and high precision adjustment of PID parameters.