基于模糊控制策略的PMSM随动系统设计及仿真

在建立了永磁同步电机矢量控制的数学模型基础上,确定了随动系统的电流环、速度环、位置环三闭环控制方案。其中电流环和速度环采用经典PID控制,由于位置环关系到系统的稳定和高性能运行,因而是本系统设计的关键,采用模糊控制器来实现。在MATLAB/Simulink环境下的仿真结果表明,本文提出的控制策略在处理非线性和外部干扰时优于传统PID控制。

Design and Simulation of PMSM Servo System Based on Fuzzy Controller

As well as mathematical model of PMSM based on vector controlling, the scheme of current-feedback, speed-feedback and position-feedback in servo system is described in this paper. One current loop and speed loop using the classical PID control, as related to the position loop system is very important to stability and high-performance operation, so it is the key to the design this system, using fuzzy controller to achieve. Simulation results show that the proposed control strategy in dealing with non-linear and external disturbance is superior to the traditional PID control.