Performance assessment using a model predictive control benchmark

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1、JournalofProcessControl14(2004)441–456www.elsevier.com/locate/jprocontPerformanceassessmentusingamodelpredictivecontrolbenchmarkab,*aRhondaH.Julien,MichaelW.Foley,WilliamR.CluettaDepartmentofChemicalEngineering&AppliedChemistry,UniversityofToronto,Toronto,CanadaM5S3E5bDepartmentofCh

2、emicalEngineering,UniversityoftheWestIndies,St.Augustine,Trinidad,W.I.,TrinidadandTobagoReceived12November2002;receivedinrevisedform20May2003;accepted2September2003AbstractModelpredictivecontrol(MPC)technologyhasbeenwidelyimplementedthroughoutthepetroleum,chemical,metallurgicalandpu

3、lpandpaperindustriesoverthepastthreedecades.Thefocusofthispaperistheassessmentofsingle-input,single-outputMPCschemesagainstanewperformancestandard.TheproposedMPCbenchmarkisshowntobeusefulbothasamodeldiagnosticandasatuningguideduringcommissioning.Aformalassessmentprocedureispresented

4、whichemphasizestheuseofroutineoperatingdataplusknowledgeofthedeadtimetodeterminewhenitbecomesworthwhiletoinvestinre-identificationoftheplantdynamicsandre-installationoftheMPCapplication.Ó2003ElsevierLtd.Allrightsreserved.Keywords:Performanceassessment;Modelpredictivecontrol;LQG;Contr

5、ollerdiagnosis1.Introductionsystems[3–5]andtothemultivariatecasebyHarrisetal.[6]andHuangetal.[11].InterestinthesubjectofcontrolloopperformanceHowever,theminimumvariancecontrol(MVC)assessmenthasincreasedsteadilyfollowingtheoriginalbenchmarkrepresentsatheoreticallowerboundonworkofHarr

6、is[1].PerformanceassessmentmethodsvariancewhichinpracticeisnotachievablebymostbasedontheHarrisapproach[2–6]haveprovenusefulcontrolschemes.MVCisrarelyimplementedindustri-inprioritizingtheactivitiesofprocesscontrolengineersallyasthemanipulatedvariableactionisusuallyverybyidentifyingth

7、oseloopswhichcouldpotentiallyben-aggressiveandthecontrollerissensitivetoerrorsintheefitfromredesignorre-tuning.Comprehensivereviewsprocessmodel.Furthermore,itsapplicationisrestrictedofthisareahaveappearedin[7–10].toplantsexhibitinginvertibleorminimum-phasedy-Theprimarycontributionof[

8、1]wasperhapstheob-n