基于模糊PID的多电机控制系统仿真

Simulation of Multi-motor Control System Based on Fuzzy PID

本文首先对理想情况下的无刷直流电机(BLDCM)数学模型进行了理论分析,然后利用MATLAB/SIMULINK环境搭建了三个无刷直流电机的模型,在实现了电流滞环和转速离散PID控制的双闭环调速的前提下,对其仿真曲线进行分析,经过多次调整,建立相应的模糊规则,封装成模糊系统用以替换离散PID控制器,从而搭建起完整的多电机控制系统。仿真结果表明加入了模糊算法之后的系统同步性相比于之前有了很大的提高,从而验证了该设计的合理性。

Firstly,the mathematical model of BLDCM under ideal conditions is analyzed theoretically.Then three models of BLDCM are built using MATLAB/SIMULINK environment.On the premise of realizing double closed-loop speed regulation with current hysteresis and speed discrete PID control,the simulation curves are analyzed.After many adjustments,the corresponding fuzzy rules are established and packaged into a fuzzy system to replace the discrete PID controller,so as to build a complete multi-motor control system.The simulation results show that the system synchronization after adding the fuzzy algorithm has been greatly improved compared with the previous one,which verifies the rationality of the design.