《自动控制原理》虚拟实验系统开发Thedevelopmentofvirtuallabsystemforautomaticcontroltheory摘要根据《自动控制原理》课程实验教学在高校实验实践中遇到的困难和实验教学改革的需要，本文提出了建立基于LabVIEW的自动控制虚拟实验系统方案。运用虚拟仪器代替传统仪器，既节约实验室建设成本，又可以得到良好的实验效果。另外，该系统可以调动学生积极性，培养创新精神，加强实践动手能力的培养本文首先分析了虚拟仪器的构成、分类与应用，选择图形化软件LabVIEW作为开发环境；其次，提出基于LabVIEW的自动控制原理实验系统的方案，包括系统结构、功能和性能特性以及设计流程和方法，并逐一实现各子实验系统。最后，利用Matlab语言编程进行对比分析，进行正确性验证。关键词：自动控制系统，虚拟仪器，MATLABIABSTRACTOnthebasisofproblemsencounteredinactualexperimentteachingofAutomaticControlTheoryinuniversitiesandneedofexperimentteachingrevolution,anewkindofautomaticcontroltheoryvirtualexperimentsystembasedonLabVIEWisadvanced.Usingthevirtualinstrumenttoinsteadofthetraditionalinstruments,namely,savingthelaboratoryconstructioncosts,butalsocanbeagoodexperiment.Inparticular,thepracticalabilitytoengagestudentsandcultivateaspiritofinnovationcanbestrengthen.Firstly,theVirtualInstrumentisbrieflyintroducedinthepaper,includingtheform,classificationandtheapplication.ThenthegraphicsmodesoftwareLabVIEWisselectedasdevelopmentenvironment.Secondly,theprojectofexperimentsystemofautomaticcontroltheorybasedontheLabVIEWisgiven;includingsystemstructure,functionandperformancecharacteristicsaswellasthedesignprocessandmethods,thentheexperimentalsubsystemisdesignedonebyone.Finally,MATLABprogrammingisusedforcomparisonandaccuracycertificationKeywords:automaticcontrolsystem,virtualinstrument,MATLAB目录摘要...........................................................................ABSTRACT.......................................................................II1绪论.......................................................................11.1课题研究的背景...........................................................11.2课题研究的目的与意义.....................................................12系统总体方案论证...........................................................22.1本课题的设计任务.........................................................22.2方案论证.................................................................23设计原理...................................................................43.1一阶系统惯性环节虚拟实验系统设计原理.....................................43.1.1一阶惯性环节数学模型的建立..........................................43.1.2MATLAB仿真..........................................................43.2二阶系统的时域特性研究...................................................53.2.1二阶系统数学模型的建立..............................................53.2.2MATLAB仿真..........................................................63.4系统校正..................................................................63.4.1串联超前校正........................................................73.4.2串联滞后校正........................................................83.4.3串联滞后-超前校正...................................................83.5PID控制系统.............................................................103.5.1PID控制原理...........................................................103.5.2水箱模型分析...........................................................114程...
