毕业设计（论文）-模糊自适应PID控制器设计精选.doc

模糊自整定PID控制器设计 摘 要 本文主要研究的是有关模糊自整定PID控制器的设计与仿真，其中涉及到模糊控制，PID控制器，参数自整定三个领域的相关内容。 模糊控制器是把PID参数整定经验总结成模糊控制规则，形成模糊控制查询表具有非线性，时变性，较大的随机干扰等系统较好的控制效果。而PID参数整定方法是最基本的也是最常用的方法被广泛的应用于各个领域。将两者有效的结合形成的自整定PID控制器它简单性和可实施性是现而易见的。 本文将这种自整定PID控制器应用于带有时滞的二阶系统中并将其同Z-N整定方法，临界灵敏度等常规PID整定方法进行比较。关键词：模糊控制， PID控制， 参数自整定， 隶属函数 Design of Fuzzy Self-tuning PID Controller Abstract In this paper, the design and simulation of a self-turning fuzzy PID type controller is proposed. The fuzzy control, PID controller and parameters self-turning are described. Firstly, the principle, history and developing trend of fuzzy control are discussed. Secondly, the conventional PID controller and self-turning are introduced. Finally, a self-turning PID controller based on fuzzy inferences is designed by combining the advantages of first one with a second one. A fuzzy controller is built based on the expert’s experiences, then it is changed into an inquiry table. The process of the fuzzy control practically inquires the table. The fuzzy control is good at the inexactly mathematical model such as non-linear, time-variant systems and so on. PID self-turning is the basest and most-used. After attaining the PID self-turning to the fuzzy controller, it is obvious that this method is simple and feasible. In this paper, the fuzzy control PID controller is used to a two-order plus time delay system. Simulation results show that the algorithm has better performance than traditional methods. Keywords Fuzzy control, PID control, self-turning, membership function 目 录 第一章 绪论 1 1.1引言 1 1.2模糊控制理论的产生和发展 1 1.3模糊控制理论的应用和目前面临的任务 2 1.4 PID控制算法的基本理论 3 1.5 PID控制器参数整定 4 1.6基于模糊推理的自整定PID控制器 4 第二章 模糊控制概述 5 2.1引言 5 2.2模糊自动控制原理 6 2.21模糊控制理论概述 6 2.22模糊控制系统 6 2.3模糊控制器设计的基本方法 10 2.3.1模糊控制器设计概述 10 2.3.2确定模糊控制器的输入变量和输出变量 10 2.3.3设计模糊控制器的控制规则 12 2.3.4确立模糊化和非模糊化的方法 17 2.3.5选择模糊控制器的输入变量和输出变量的论域 18 2.3.6编制模糊控制算法的应用程序 20 2.3.7合理选择模糊控制算法的采样时间 21 2.4模糊控制器的特点 22 第三章PID控制原理极其参数自整定概述 24 3.1引言 24 3.2PID控制算法 24 3.3理想PID控制算法的改进 26 3.4PID控制器参数整定方