永磁同步电动机调速系统的模糊控制与仿真

Fuzzy Control and Simulation of Regulating System for Permanent Magnet Synchronous Motor

对电动汽车驱动用永磁同步电动机(PermanentMagnetSynchronousMotor缩写为PMSM)的调速系统进行模糊控制并对其结果进行仿真。对PMSM进行数学建模,根据其数学模型在MATLAB/Simulink下建立PMSM、PMSM测量环节、dq/abc转换器和PWM三相逆变器的仿真模块并进行封装。采用二维模糊设计,以电动汽车行驶时所要求的电动机转速n′与电动机的实际转速n之间的偏差E和其偏差变化率EC作为系统的输入变量,把控制占空比的电流信号U作为输出语言变量,进行模糊控制器的设计。根据PMSM的各模块和所设计的模糊控制器,在MATLAB/SIMULINK下创建电动汽车PMSM调速系统的模糊控制仿真结构模型,并进行仿真,从而验证控制方法的正确性。

This paper researches the fuzzy control and simulation of regulating system for PMSM in electrical vehicle. The mathematics model is set up.The PMSM,the PMSM measures demux, dq to abc converter and the three phrase PWM converter models are set up in MATLAB/ Simulink. The fuzzy controller is designed with two dimension fuzzy design method, and take E and EC as input variable, U is the output variable. According to the controller and models, the fuzzy control model of regulating system for PMSM is created in matlab/simulink. At last, to test the accuracy of the control method with the simulation result.