资源描述：
《PID过程控制算法毕业论文外文翻译.doc》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。
1、附件1：英文资料及中文翻译英文资料PIDcontrolalgorithm1,PIDisaclosedloopcontrolalgorithm.Therefore,toachievethePIDalgorithm,youmusthavethehardwareloopcontrol,thatis,musthavefeedback.Suchascontrollingamotorspeed,youhavetohaveameasurementofspeedsensor,andtheresultsfedbacktothecontro
2、lline,thefollowingwillalsobespeedcontrol,forexample.2,PIDistheproportional(P),integral(I),Derivative(D)controlalgorithms.Butnotmusthavethesethreealgorithms,itcanbePD,PI,orevenonlytheP-controlalgorithm.Iusedforclosed-loopcontrolofoneofthemostsimpleideaonlyPcontrol
3、,thecurrentresultsfedback,andthensubtractthetarget,ispositive,thenslowdown,thenitisnegativeacceleration.Nowknowthatthisisjustthesimplestclosed-loopcontrolalgorithms.3,theratio(P),integral(I),differential(D)controlalgorithmshaveeffect:?????Proportionofthereactions
4、ystem,thebasic(current)deviatione(t),coefficient,canspeeduptheregulation,reduceerrors,butthesystemistoolargeproportiondecreasedstability,orevencausesysteminstability;?????Integral,thecumulativedeviationofthereactionsystem,allowingthesystemtoeliminatethesteadystat
5、eerror,nogradienttoimprove,becausethereisanerror,integralcontrolwillbecarriedoutuntilnoerror;?????Differential,reflectingtherateofchangeofthesystemdeviationsignale(t)-e(t-1),isforeseentoanticipatetrendsdeviationgeneratedaheadofthecontrolaction,thedeviationisnotfo
6、rmed,hasbeenthedifferentialregulationofremove,soyoucanimprovethedynamicperformance.However,differentialinterferencetonoiseamplificationroleinstrengtheningdifferentialinterferencedetrimentaltothesystem.Integralanddifferentialcannotworkaloneandmustbeproportionalcon
7、trolcooperation.4,thecontrolleroftheP,I,Ditemselection.Thefollowingruleswillbeusedtocontrolvariouscontrolfeaturesbrieflysummarizedhere:1,theproportionalcontrollawP:Pcontrollawusedtoquicklyovercomethedisturbances,whichactontheoutputvalueofthefast,butnotverystablea
8、tadesiredvalue,comparedwithanegativeresultistoeffectivelyovercomethedisturbances,butmorethanadifferenceappears.Itissuitableforthecontrolchannellagissmall,littl
