基于模糊控制的水箱智能控制系统设计

guizhounniversity研究生作业（论文）专用封面论文题目：基于模糊控制的水箱智能控制系统设计课程名称：现代控制理论任课教师姓名：研究生姓名：姚舜理号：学级：年业：专院：学任课教师评分：评阅意见：任课教师签名：年月日基于模糊控制的水箱智能控制系统设计摘要模糊控制（FuzzyControl）属于智能控制范畴，以模糊集合理论，模糊语言变量和模糊逻辑推理为基础的一种计算机数字控制技术。传统的控制理论，对控制系统的精确度有很高的要求，对于系统的动态过程需要建立具体的数学模型进行详细描述。随着系统的复杂度越来越高，包含变量的数目越来越多，许多变量之间的线性关系不明确，给研究者带来了巨大的挑战。对于一些无法获得数学模型、非线性的或者时变的系统，无论是利用经典控制还是现代控制理论的各种算法，都很难实现控制。随着模糊数学的发展，模糊控制解决了一系列的相应难题。“模糊”可以表示一种客观变化的模糊现象,可以表示一种经验性的思维判断，模糊控制就是利用这种“模糊”的思维经验方式去控制客观的“模糊现象”。本文利用模糊控制原理，构建一个模糊闭环控制系统，其目的是通过阀门的开度，达到控制水箱水位的目的，并使其能够快速跟随所设定的水位。关键字：模糊控制，模糊数学，模糊关系，模糊推理，MATLAB仿真DesignofIntelligentControlSystemofWaterTankBasedonFuzzyControlABSTRACTFuzzycontrolbelongstothecategoryofintelligentcontrol,acomputernumericalcontroltechnology,whichisbasedonthetheoryoffuzzysets,fuzzyLanguagevariablesandfuzzylogicreasoning.Conventionalcontroltheoryhasveryhighdemandsonaccuracyofthecontrolsystem,whichneedstoestablishspecificmathematicalmodeltoadynamicprocessofthesystemforadetaileddescription.However,system,whichisbecomingmoreandmorecomplexity,containstheincreasingnumberofvariables,butmanylinearrelationshipsbetweenvariablesisnotclear,asbroughtgreatchallengestoresearchers.Whateverusetheclassiccontrolalgorithmsormoderncontroltheory,itishardtocontrolthosesystemswhichareunabletogetthemathematicalmode,non-linerortiming-varying.Withthedevelopmentoffuzzymathematicsandfuzzycontroladdressaseriesofcorrespondingchallenges.“Fuzzy”canrepresentachangeofobjectivefuzzyphenomenaalsocanrepresentakindofempiricalthinkingjudgment.Thatfuzzycontrolsystemutilizessuchfuzzymodeofthinkingtocontroltheobjectivefuzzyphenomenon.Inthisarticle,usethefuzzycontroltheorytobuildaclosed-loopfuzzycontrolsystem,aimingtocontrolthewaterlevelinthetankandenablethemtoquicklyfollowthesetlevelbyclosingswitchorturningontheswitch.Keywords:fuzzycontrol,fuzzymathematics,fuzzyrelationship,fuzzyreasoning,MATLABSimulation目录1绪论...............................................................................................................11.1概述..................................................................................................................................11.2国内外发展现状及发展趋势...........................................................................................12.模糊控制基本理论.........................................................................................22.1普通集合与模糊集合......................................................................................................22.2模糊关系.........................................................................................................................22.3模糊推理.........................................................................................................................22.3.1Mamdani模糊推理法............................................................................................22.3.2Larsen模糊推理法................................................................................................52.3.3Zadeh模糊推理法.................................................................................................72.3.4Takagi－Sugeno模糊推理法.................................................................................83.模糊控制原理与设计方法.............................................................................93.1模糊控制原理...................................................................................................................93.1.1模糊系统的组成....................................................................................................93.1.2模糊控制系统的基本原理.....................................................................................93.2基本模糊控制系统的设计方法.....................................................................................114.水箱水位控制系统设计...............................................................................124.1问题描述.......................................................................................................................124.2控制系统动态结构图.....................................................................................................124.3被控对象水箱模型........................................................................................................134.4水位控制系统模型.........................................................................................................134.5模型使用方法.................................................................................................................144.5.1模糊控制模式......................................................................................................144.5.2PID控制模式......................................................................................................154.5.3修改模型参数......................................................................................................154.6小结...............................................................................................................................165.总结..............................................................................................................176.参考文献..............................................