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2014-03-191972—。13482266168E－mailshiliang@Shanghaiwater．com。200438MFA、、。。。TU991．2B1009-01772014s1-0187-05ApplicationofModel-FreeAdaptiveControlSystemforCoagulantDosageinWaterTreatmentPlantShiLiangYanYiqingShanghaiNorthWaterSupplyCo．Ltd．ZhabeiWaterTreatmentPlantShanghai200438ChinaAbstractModel-FreeAdaptiveControlSystemcouldbeusedindosingcoagulationprocessofwatertreatmentplantwhichisanon-linearandtime-variantprocesswithlargetimeconstantandlargedeadtime．ThesystemisbasedonMFAcontroltechnologyandadjustscoagulantdosagebyturbidityofsedimentationtankwhichsuccessfullysolvesthedifficultprobleminwatertreatment．Throughtestingitshowsthatthesystemhasgoodeffectsoncontrollinginanti-interruptionofrawwaterflowandturbidity．Keywordswatertreatmentautomativedosagesystemmodel-freeadaptivecontrolsystem。、、、、。、、、pH。。、、。、、、。、、。。。ξ。、。、1-5。、、、。、。、、6。“、”。—781—WATEＲPUＲIFICATIONTECHNOLOGYVol．33No．s12014May20th2014201433s1187-191WaterPurificationTechnologyDOI:10.15890/j.cnki.jsjs.2014.s1.046Model-FreeAdaptiveMFAMFAMFA。11、。20～30min。。。。1Fig．1ＲegularWaterTreatmentProcess28t10～40NTU0．10NTU。20t8t20t1#、2#8t3#。。1．5h2h。22．1MFAPID。、PID。MFA7。SCMFCDMFAMFA。MFA26“”、N。Wijhi。2MFAFig．2CoreStructureofMFAControlTechnique—881—．Vol．33No．s12014。。MFA。MFAMFA。MFA123458。2．2MFAMFA。。MFA。、pH。3MFA。3MFAFig．3MFAControlSystemDiagram2．3MFA2003MFA。1#、2#、1#、2#3．0±0．2NTU12003。1#2#2#2#。11#、2#Tab．1OperationComparisionwith1#and2#SedimentTanks7891#2#1#2#1#2#/ppm9．2111．3611．2013．0212．0213．0684%55%90%55%80%45%1ppm=1mg/L．201145～10、11～4。100%70%、30%。2、。MFA。2MFATab．2OperationAnylsiswithMFAControlSystem/NTU11131426/NTU3．003．001．203．001#/ppm6．967．067．207．012#/ppm6．977．867．517．853、42013、2014MFA6．5～7．9ppm—981—WATEＲPUＲIFICATIONTECHNOLOGYVol．33No．s12014May20th2014±0．2NTU。32013MFATab．3OperationStatusofMFAControlSysteminWinter20131234/NTU7567/NTU1．101#/ppm7．346．987．247．252#/ppm7．586．876．737．1842014MFATab．4OperationStatusofMFAControlSysteminWinter20141234/NTU151398/NTU1．101#/ppm6．967．087．197．402#/ppm7．197．497．857．64、。、、14。4Fig．4TurbidityInteruptionCurve25。5Fig．5InflnentInteruptionCurve36。6Fig．6ControllingIndexInteruptionCurve31MFA、、。2MFA。3MFA。2MFAMFA。4MFAPLC。/。—091—．Vol．33No．s120141VanDorenJVance．TechniquesofadaptivecontrolC．ISATECH/EXPOTechnologyUpdateConferenceProceedings2002424-425534-545．2V．VanDoren．ModelfreeadaptivecontrolJ．ControlEngineeringEurope20011-5．3GeorgeCheng．Model-FreeAdaptiveMFAcontrolJ．IEEComputingandControlEngineering200415328-33．4GChengMHeDLLi．Model-freecokingfurnaceadaptivecontrolJ．HydrocarbonProcessing1999781273-76．5．J．2001949．6．J．2007244176-179．7．MFAPIDJ．200829527-29．8．MFAJ．2010312J1-J2．153。2012MOSAＲE17DN3007201272013。。1Tab．1ListofHigh-riskPipeCategoryMaterialDiameterAssetsAve．Burst-ＲateAve．PriorityAve．LengthmTotalLengthm/unk．300280．131．46376．910554/unk．50050．11．27350．41752/Conc50010．051．05195．1195/Conc80010．051．35787．6788/Conc100010．050．95510510/DCIP30070．061．18636．14453/DCIP50050．061．04571．62858/S30070．191．18191．11338/S500180．151．95390．47028/S80050．041．08714．43572/S1000150．041．5675011250/S120020．041．21562．4112530010．141．45302．530350090．111．48363．73273140010．020．9614521452/CIP3001460．141．51324．747407/CIP500240．111．54377．790642Tab．2Multi-indexAnalysisofWeightDistributionCodeCriterionParticipantAverage123456WeightUsedAdjustedWeightsＲClＲepairCost5010010080509078．30．12510．168CIICustomerInterruption50705070806063．30．10110．136CSICustomerSensitivity508050601009071．70．11410．154HCIHydraulicCriticalty1001001001006080900．14310．194WQWaterQuality8090805070100800．12400TDITrafficDisruption70507050304053．30．08510．155LSlLocationSensitivity70507080705066．70．10610．143WLlWaterLoss60502030404041．70．06610．00COSCoordination0503050505041．70．06600ADQAquadag0505050404041．70．066004、Aquadiag、MOSAＲE。、、。1．J．20113611115-118．2CJJ92—2002S．2002．3．、Ｒ．2013．4．D．2008．—191—WATEＲPUＲIFICATIONTECHNOLOGYVol．33No．s12014May20th2014