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TONGJIZHEJIANGCOLLEGE毕业设计（论文）课题名称：用Labview实现的电机PID控制副标题:系名称：机械与电气信息工程系专业：自动化姓名：吴亚郎学号：1013003指导教师:刘古山日期：2014年5月22日毕业设计（论文）报告纸I用Labview实现的电机PID控制专业10自动化姓名吴亚郎学号1013003指导老师刘古山【摘要】在电机转动过程中，由于来自外界的各种扰动不断产生，要想达到转速保持恒定的目的，控制作用就必须不断的进行。若扰动出现使得现场控制对象值发生变化，现场检测元件就会将这种变化记录并传送给PID控制器，改变过程变量值(简称PV值)，经变送器送至PID控制器的输入端，并与其给定值(简称SP值)进行比较得到偏差值，调节器按此偏差并以我们预先设定的整定参数控制规律发出控制信号，去改变调节器的开度，使调节器的开度增加或减少，从而使现场控制对象值发生改变，并趋向于给定值(SP值)，以达到控制目的。本文基于LabVIEW软件中的PID模块，完成以下工作：（1）认识LabVIEW软件和其中PID模块，设计辅助学习PID控制系统的仿真系统。（2）利用LabVIEW设计一个简单测频仪并仿真。（3）将电机控制板块在电路板上焊接完成，利用NIELVIESmx完成该电路测量和调试。（4）利用LabVIEW设计PID控制程序，实现对电机系统的PID控制和调节。运行结果显示，结合LabVIEW进行试验的方法简单有效，运用LabVIEW的PID模块设计PID控制程序不仅方便，而且简单易懂，调节方便，观察分析方便。【关键词】LabVIEW；电机；PID；控制毕业设计（论文）报告纸IIMotorPIDcontrolbasedonLabviewProfessional10AutomationNameWuYalangStudentIDNumber1013003TheInstructorLiuGushan【Abstract】Intheprocessofmotorrotation,duetovariousdisturbancefromtheoutsideconstantly,inordertoachievethepurposeofspeedconstant,controlactionmustbeconstant.Ifdisturbancemakesthescenecontrolobjectvalueschange,thedetectingelementisthischangewillberecordedandtransmittedtothePIDcontroller,thechangeprocessvariablevalues(PV),viathetransmittertothePIDcontroller'sinput,anditssetvalue(SP)comparegetdeviation,regulatoraccordingtothedeviationandwithourpresetsettingparametersofthecontrollawsignalcontrol,tochangetheregulatoropening,maketheregulatoroftheopendegreeofincreaseordecrease,sothatthecontrolobjectvalueschange,andtendstothegivenvalue(SP),inordertoachievethecontrolpurpose.ThisarticleisbasedontheLabVIEWsoftwarePIDmodule,dothefollowing:(1)understandingtheLabVIEWsoftware,andthePIDmodule,designassistedlearningsimulationsystemofPIDcontrolsystem.(2)usingLabVIEWtodesignasimplefrequencymeasuringinstrumentandsimulation.(3)Themotorcontrolplatewascompletedonthecircuitboardwelding,usingNIELVIESmxmeasurementandcompletethecircuitdebugging.(4)usingtheLabVIEWdesignPIDcontrolprocedures,implementationofPIDcontrolandregulationofmotorsystem.RunningresultsshowthatthecombinationofLabVIEWtestmethodissimpleandeffective,usingLabVIEWPIDmoduledesignPIDcontrolprogramisnotonlyconvenient,andeasytounderstand,convenientadjustment,easyobservationanalysis.【Keywords】LabVIEW;Motor;PID;Control毕业设计（论文）报告纸III目录1绪论.......................................................................................................................................................11.1前言............................................................................................................................................11.2课题的背景和意义....................................................................................................................11.3虚拟仪器的概念........................................................................................................................21.4Labview的介绍..........................................................................................................................21.5PID控制的介绍..........................................................................................................................31.6研究内容....................................................................................................................................32基于Labview的自控原理设计...........................................................................................................42.1虚拟仪器的功能模块................................................................................................................42.1.1DAQ助手...........................................................................................................................42.1.2函数信号发生器..............................................................................................................52.1.3提取单频信息.................................................................................................................62.1.4while循环........................................................................................................................82.1.5PID模块...........................................................................................................................92.2基于Labview的程序设计原理..............................................................................................102.2.1利用NIELVISmx进行电路板的测试.........................................................................102.2.2频率测量仪的设计.......................................................................................................122.2.3PWM波形模拟输出的完成和仿真.................................................................................132.2.4电压输出模拟输出的完成和仿真................................................................................153基于Labview的自控原理实验.........................................................................................................163.1PID控制的原理和特点............................................................................................................163.2基于Labview的电机PID控制程序设计...............................................................................174基于Labview电机PID控制仿真......................