直流电机控制系统优化问题仿真分析  

Analysis and Simulation for DC Motor Control System

作　　者：沈维佳[1] 张年松[1] 何勇[1] 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《计算机仿真》2015年第3期383-387,共5页Computer Simulation

摘　　要：在直流电机控制优化的研究中,直流电机具有强非线性的特点,使用定参数PID方法的转速控制虽然可以提高直流电机的响应速度,提高其动态性能,但同时会产生超调现象,对转速控制系统的性能难以保证。应用专家系统和专家控制系统的基本知识设计了一个模糊自整定PID控制系统。该系统利用输入误差及变化率建立一组PID实时调整规则。结合所建立的直流电机模型,进行仿真。结果表明,所设计的模糊自整定PID控制器不但进一步提高直流电机的响应速度,同时很好解决了常规PID控制产生的超调问题。The DC motor has a strong nonlinear characteristic. By using the given parameters,PID speed control method can improve the response speed and dynamic performance,but it will generate the overshoot. So the speed control system performance is not guaranteed. In this paper,we design a fuzzy self-turning PID control system with the basic knowledge of expert systems and expert control system. The system uses input error and its change rate to establish a set of PID adjustment rules in real time. Combined with the established DC motor model for simulation,the results show that the designed fuzzy self-turning PID controller improves the response speed of the DC motor,and makes a good solution to conventional PID control overshoot problem.

关 键 词：直流电机 模糊自整定 整定规则 仿真 

分 类 号：TH128[机械工程—机械设计及理论]