PID控制器的优化设计  

Optimization research and design for PID controller

作　　者：李界家[1] 张万江[1] 王然冉[1] 康健[2] 李颖[3] 

机构地区：[1]沈阳建筑大学信息与控制工程学院 [2]92493部队后勤部 [3]沈阳仪表科学研究院

出　　处：《沈阳建筑工程学院学报（自然科学版）》2004年第3期232-234,共3页Journal of Shenyang Architectural and Civil Engineering University(Nature Science)

基　　金：建设部基金资助项目(03-2-117)

摘　　要：为使PID控制器同时具有给定值跟踪和抑制干扰两个方面的最佳特性,提出了PID控制器优化设计方法.笔者设计了给定值补偿型I-PD控制器,其结构简单,便于掌握,易于实现,可以实现系统的最优控制,特别适用于串级控制中级数较多的系统.在深入研究反馈型2自由度PID控制器的基础上,增加了前馈补偿器,有效地抑制了扰动,为改善给定值跟踪特性,在前馈位置上增加一个微分负前馈环节,仿真结果表明:该控制器具有抗干扰能力强,实时性好,调节时间短、超调量小等特点,提高了系统的控制性能.In order to achieve the best characteristics of the setting value tracking and the disturbance rejection,a PID controller optimization design method is put forward.The settling value compensation PID controller is designed,whose simple structure makes it easy to master and achieve optimization control.This is especially applicable to the system of more series.By further research a feed-forward compensator has been added to feedback multi-variance PID controller in order to restrain the disturbance effectively.To improve the characteristic of the setting value tracking,a differential negative feed-forward link is added to the position of feed-forward.Simulation results show that this controller can improve the control function of the system,and has the properties of strong anti-disturbance,good real time,short regulating time,small exceeded adjusting amount etc.

关 键 词：控制器 优化 跟踪 干扰 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]