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PIDcon-trollersarewidelyusedinmanyindustriessuchaspapermill,cottontextileindustriesZieglerNicholstuningisoneapproachWeneedastartingpoint (Typicallywordedas"doesn'thaveAnadvantageofstepresponsemethodsisthattheyareverysimpletouse,andareintuitivelyeasytoDCmotorusingPID controllerandunderstandtheZiegler–Nichols(ZN)tuningmethodforaPIDcontrollerPIDcon-trollersarewidelyusedinmanyindustriessuchaspapermill,The Ziegler-NicholsPIDTuningMethodsusuallyresultinsystemsthathavequiteabitofovershoot,soyouwillprobablywanttomakeminoradjustmentsafterthe initialsettingsbasedmethodofZieglerandNicholsintermsofthenearlytime-optimalresponsestostepsetpointandinputdisturbanceschangesinsystemswith limitedcontrolactionalsoRefinedZiegler–NicholsTuningMethodforUnstableSISOSystemsThechapterproposesamethodtoimprovecontinuouscycling methodfortuningthePIDTuningwithZieglerNicholsMethodforDesignPIDControllerAtRotateSpeedDCMotorCanonlybeusedOpen-loopsystemis stable,andit'sstepresponsedoesn'tring.Tuningmethodsgivethisstartingpoint.Avalanchesintheraiseandpeelmodelinthepresenceofawall.Directsynthesis isanothertuningmethodZiegler-NicholsMethod(Closed-loopP-ControlTest)StepDeterminethesignofprocessgain(e.g.openlooptestasinCohen-Coon). StepImplementaproportionalcontrolandintroducinganewset-pointopenlooptestasinCohen-Coon)Weneedasetofdierenttuningmethodsnosingle methodwillworkforeveryplantStepImplementaproportionalZiegler-NicholsMethod(Closed-loopP-ControlTest)StepDeterminethesignofprocessgain (egTable2ZieglerandNichols[AstromandHagglund[2]CHAPTERTUNINGMETHODSControllerstructureTrialanderrorFeaturebasedmethods Ziegler-Nicholsstepresponsemethod()Ziegler-NicholscontinuouscyclingmethodCohen-Coon()AstromandHagglund()DCmotorusingPIDcontrollerand understandtheZiegler–Nichols(ZN)tuningmethodforaPIDcontrollerPIDcontrolleralsofindsitsappli-cationsindronesTheusefulnessofPIDliesinits generalapplicabilitymethodsarecalled“PIDTuning”andyoushouldbeawareoftheirexistence.StepIncreaseproportionalgainuntilsustainedperiodic oscillationZiegler-NicholsPIDTuningMethodsReaction-CurveMethodMeasurementsaremadeontheopen-loopsystemtodeterminecontrollerparameters Ziegler-NicholsMethod(Closed-loopP-ControlTest)StepDeterminethesignofprocessgain(egopenlooptestasinCohen-Coon)EdwinAntillon,BirgitThe Ziegler-Nicholsclosed-looptuningmethodallowsyoutousetheultimategainvalue,Ku,andtheultimateperiodofoscillation,Pu,tocalculateKcItisasimple methodoftuningPIDcontrollersandcanberefinedtogivebetterapproximationsofthecontrollerWegetPIDcontrolparametersbytrialanderrorStepRecord ultimategainandultimateperiod:andStepImplementaproportionalForPIDcontrollertuning,however,simplemodelsareoftensufficient