c液位系统PID控制及仿真摘要三容水箱是使用较为广泛的、具有很大代表性的工业数学模型之一，具有很重要的研究意义。液位控制是工业控制中最常用的方法之一，由于液体本身的摩擦等因素的影响，使得控制对象具有一定的滞后性，具有非线性的特点。PID控制是最常用的控制算法之一，由于其工况范围广而且其功能简单。考虑到三荣水箱的代表意义，这里选择将其作为研究对象，使用MATLAB作为研究工具对其进行PID和模糊PID控制的建模以及仿真，并且将两者的仿真结果进行对比分析。关键词：传统PID；模糊PID；三容水箱；MATLAB仿真；PIDControlandSimulationofLiquidLevelSystemABSTRACTThree-tankwatertankisoneofthemostextensiveusedandrepresentativeindustrialmathematicalmodels,whichhasveryimportantresearchsignificance.Liquidlevelcontrolisoneoutofamultitudeusefulusedmeansinindustrialcheckon.Duetotheinfluenceoffactorssuchasthefrictionoftheliquiditself,thecontrolobjecthascertainhysteresisandnonlinearcharacteristics.PIDcontrolisoneofthemostwide-rangingappliedcontrolalgorithmsanditswideoperatingrangeandsimplefunction.Inthispaper,themodelingandsimulationofrepresentativethree-tankPIDandfuzzyPIDcontrolaredeeplystudiedanddiscussedbyusingMATLABsimulationsoftware,andthetraditionalPIDcontrolandfuzzyPIDcontrolarecomparedandsummarized.Keywords：TraditionalPID;FuzzyPID;Three-capacitywatertank；Matlabsimulation;目录一、论述............................................................................................................61.1研究背景与意义..........................................................................................61.2文献综述...................................................................................................61.3研究现状...................................................................................................81.4写作思路...................................................................................................9二、液位系统的控制与建模.................................................................................102.1PID控制原理...........................................................................................102.2三容水箱的设计要求.................................................................................112.3水箱的数学模型........................................................................................11三、各算法研究及原理.......................................................................................133.1比例控制算法...........................................................................................133.2积分控制算法...........................................................................................143.3微分控制算法...........................................................................................163.4PID控制算法参数整定...............................................................................173.5模糊PID简介..........................................................................................18四、PID控制算法研究及仿真..............................................................................194.1PID控制算法选择.....................................................................................194.2PID控制器设计........................................................................................19五、模糊PID控制算法研究及仿真.......................................................................225.1模糊PID控制算法模型......
