连续重整装置先进控制技术及应用研究

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1、浙江大学信息科学与工程学院硕士学位论文连续重整装置先进控制技术及应用研究姓名：章鹏申请学位级别：硕士专业：控制理论与工程指导教师：荣冈;金晓明20081101摘要ABSTRACTWiththeprocessesoftheproductionenterprisesinmodemprocessindustryincreasinglylargeandcomplicated，theuseofadvancedprocesscontroltechnologytostabilizetheunitproduction，optimizetheprocessoperat

2、ionintheworldhasbecomeanirresistibletrend．Multivariablepredictivecontroltechnique，soft—sensingtechniqueandintelligentcontroltechniquehavebeenmaintoolstoimplementadvancedprocesscontrol，andprocesssimulationtechniqueforadvancedprocesscontrolsystemsprovidesstrongsupporttofurtherinc

3、reasebenefitsoftheunits．Basedontheconclusionofthestatusofresearchanddevelopmentoftheadvancedprocesscontrolincontinuouscatalyticreforming(CCR)unit，thethesiscarriedoutpredictivecontrol，intelligentcontrolandsoft-sensingalgorithms，etc．fordevelopmentandimplementationofadvancedproces

4、scontrolsystemofthelarge—scaleCCRunit，andstudiedtheprocesssimulationandoptimizationappliedtotheCCRadvancedprocesscontrolsystem．Then，thesuccessstoryoftheAPCapplicationwasgiven．Themaincontributionsandcontentsofthispaperaredescribedasfollows：1．Onthebasisofanalyzingtherelevantdomes

5、ticandinternationaldevelopmenttrendsofadvancedprocesscontroltechnology,thepredictivecontrol，softsensorandprocesssimulationtechnologieswerediscussed．TheoverallstrategyandstructureoftheCCRadvancedprocesscontrolsystemweregiven．2．ForCCRfumacecontrolcharacteristics，theeffectivenesso

6、fthecalorificvaluefluctuationsoffuelgastooutlettemperaturecontrolwasmainlyanalyzed．AnewpredictivecontrolalgorithmbasedonthecumulativedeviationsofmodelpredictionwasproposedandappliedtoadvancedprocesscontroloftheCCRfurnace’Soutlettemperature．Theapplicationresultsindicatedthatthea

7、lgorithmWasstableandreliable．3．Afteranalyzingthecharacteristicsanddifficultiesoflevelcontroloftheextractiontowerinaromaticextractionunit，aspecialcombinedalgorithmofregionalcontrolandmultivariablepredictivecontrolWasproposed．Thecontrolalgorithmhasbeenachievedsatisfactoryapplicat

8、ionresults，greatlyimprovedthelevelstabilityoftheextrac