自适应pid控制器的设计及仿真_毕业论文.doc

摘 要 PID提供了反馈控制，通过比例环节成比例的反应偏差信号，加快系统响应速度，提高系统的调节精度，通过积分作用反应并消除系统的稳态误差，通过微分作用预测未来偏差信号的变化趋势，改善系统动态特性。 关键词：仿真 Abstract PID controller is one of the first developed one of the control strategy, because of its algorithm is simple, robust and reliable and high reliability, are widely used in industrial process control. PID controller provides a feedback control through the proportional response bias signal of the aspect ratio,to speed up response time, improve the accuracy of regulation; through integral role to response to the steady-state system and eliminate errors, through differential role to predict the changes in trends of signal deviation in future;improve dynamic characteristics of the system.The using of Fuzzy logic controller makes the parameter’s self-adaption of PID controller possible when Fuzzy logic controller and PID controller are combined together. It also perfects the properties of PID controller and improves the precision of control system.The organic combination of Fuzzy Toolbox and SIMULINK realized the computer simulation of this self-adaptive Fuzzy PID control system conveniently,and also promotes the application of MATLAB.The simulation results show that,compared with ordinary PID control, fuzzy PID parameters of self-tuning control have smaller over shoot ,shorter regulation time and better dynamic response characteristics. Keywords: Fuzzy Logic control;PID controller;MATLAB;SIMULINK;System simulation. 目 录 绪论 1 1 MATLAB/Simlink简介 2 1.1 Matlab 2 1.1.1 Matlab概述 2 1.1.2 Matlab特点 2 1.1.3 Matlab窗口 3 1.2 Simulink 5 1.2.1 Simulink概述 5 1.2.2 Simulink操作 5 2 模糊控制 10 2.1 模糊控制基本原理 10 2.2 模糊控制器设计 10 2.2.1 结构设计 10 2.2.2 论域及量化因子确定 11 2.2.3 控制规则设计 12 2.2.4 建立控制规则表 15 2.2.5 建立控制表 16 PID控制器的设计及其在Simulink中的仿真 17 3.1 PID控制原理 17 3.2 模糊PID控制器在Simulink中的仿真制作 20 3.2.1　模糊控制整定P ID参数的原理 20 3.2.2 自适应PID控制器Simulink仿真结构 23 3.2.4 PID参数模糊自整定控制规则 28 3.2.5 仿真结果及对比结果分析 28 结 论 37 致 谢 38 参考文献 39 附录A 英文原文 40 附录B 中文翻译 50 绪 论 PID（比例-积分-微分）控制器是工业过程控制中最常见的一种线性