毕业论文--模糊自整定PID控制器设计及仿真分析.docVIP

摘 要 针对常规PID控制不具有自适应能力，对于时变、非线性系统控制效果不佳。提出了将模糊技术与PID控制相结合的控制方式，设计出各种模糊控制器。论文的主要内容包括： 1.介绍模糊控制技术的背景和重大意义，了解常规PID控制中的优点与缺点。 2.了解模糊控制的数学基础。例如：模糊集合的定义、模糊语言、模糊推理、模糊变量的隶属函数、论域、量化因子、比例因子等。 3.掌握MATLAB中模糊工具箱、SIMULINK的使用及模糊控制器的设计方法，对于不同的控制系统设计出对应的模糊控制器的规则。 4.对混合式模糊PID控制器、开关式模糊PID控制器、自整定模糊PID控制器进行SIMULINK仿真。 MATLAB中模糊逻辑控制工具箱设计模糊控制器灵活、方便、可观性强，并可在SIMULINK环境中非常直观地构建各种复杂的模糊PID控制系统。仿真结果表明，模糊PID控制具有控制灵活、超调小、响应快和适应性能强的优点。 关键词：模糊PID控制；MATLAB仿真；SIMULINK Fuzzy Adaptive PID Controller Design and Simulation Analysis Abstract To the conventional PID control don’t have self-adaptive ,the control effect of time-varing and nonlinearity, We have already take the control method that combine fuzzy technology with PID control, and design various the fuzzy controller. The main contents of thesis is that: 1. Introduce the fuzzy control technologys background and great significance, understanding the advantages and disadvantages of the conventional PID control. 2. Understanding the mathematical basis of the fuzzy control, such as: the definition of fuzzy set, fuzzy language, fuzzy inference, membership function of fuzzy variables, treatise domain, quantifiable factor, scale factor and so on . 3. Master the use of the fuzzy toolbox, SIMULINK at MATLAB and the design of the fuzzy controller for different control system design the rules of the different fuzzy controller correspondingly. 4. Carry out SIMULINK simulation for the hybrid fuzzy controller, the switch fuzzy controller, and self-fuzzy controller. When a fuzzy logic control toolbox design fuzzy controller, it is very flexible、convenient and great observability in MATLAB, and it can construct various complex fuzzy PID control system directly in SIMULINK environment. The simulation results show that the fuzzy PID control have advantages of flexible control, small overshoot, fast response and strong adaption. Key words：Fuzzy PID control；MATLAB simulation；SIMULINK目 录 摘 要 I Abstract II 第1章 绪论 1 1.1 课题的研究背景及意义 1 1.2 PID控制的特点 2 1.3 模糊控制技术概述 3