基于DCS的多种燃料混合燃烧锅炉控制策略研究与实现

上海交通大学硕士学位论文基于DCS的多种燃料混合燃烧锅炉控制策略研究与实现姓名：谢同琪申请学位级别：硕士专业：控制工程指导教师：谢剑英;余正环20090501-I-Abstract-II-RESEARCHANDREALIZATIONOFCONTROLSTRATEGYFORMULTI-FUELHYBRIDCOMBUSTIONBOILERBASEDONDCSABSTRACTBasedonthetechnologicalinnovationofboilercontrolsystemofbaosteel’sNO.1andNO.2unit,consideringthelowautomationalleveloftheanaloguebuilt-upinstrumentcontrolsystemandthecharacteristicsoftheimperfectionsofsurveillancefunction,weintroducedtheEmerson’sOVATIONDCScontrolsystem.First,thispaperstatedDCScontrolsystemdesign,network,hardwareandsoftwaredesignandconfiguration,thenseriouslyanalyzedload-fuelandfuel-aircontrolformulti-fuelhybridcombustionboiler.Meanwhile,thepaperresearchedautomaticgeneratorcontrol(AGC)andfrequencycontrol.Atlast,thepapershowedanaloguedesignfordigitalmodulationsystem,andillustratedBoilerfeedwatercontrolsystem,superheatsteamtemperatureandreheatsteamtemperaturecontrolsystem.TheresultsshowedthattheuseofDCScontrolsystemcanfullrealizethedecentralizedcontrolandcentralizedmanagementfunction,itnotonlyhaspowerfulandflexiblecontrolfunction,butalsohashighreliability,andthenewcontrolstrategycangreatlyenhancetheboilercombustionrate.Atthesametime,therealinformationcanbesenttoSupervisorInformationSystem,enhancedthemanagementlevelforthewholeplant.KEYWORDSHybridcombustionboiler,DCScontroldesign,Researchofcontrolstrategy“”-1-1.1350MWSystem-1100APCMTM1982198312DCSOVATIONAPCDCSMCS[1]DCS12[2]1.212350MWAPCABSCPU16128K1MBTGRT-2-70DCSCRT4CCRT[3-4]-3-DCS12BFGCOG1DCSDCSI/ODCS2--31.32050-60(DDC)(SCC)(DCS)[5]1975HoneywellTDC-2000DCSSPECTROMDCS[6-7]DCS-4-DCSDCS(ISO)(OSI)1980(MAP)MAPOSIOSI2080DCSIADCSDCSDCSDCS[8]2090()DCSHoneywellExperionPKSEmersonPlantWebFoxboroA2R3ABBIndustrialIT[9]DCS4()DCSPLCRTU()FCSDCSOEMDCSOPCMicrosoft[10]DCSIEC6113l-3PLC[11]-5--6-[12][13]ØØØØØØØØØØØØ-7-ØØ[14]2-1[15]Fig.2-1TypicalStructureofOvationSystem-8-[16][17]12345-6-9-74DCSDEH[18-23]DCS14DROP1/51~DROP14/64251SIS1OvationDCS2-2Fig.2-2DiagramofDCSControlSystemCONT1/CONT51CONT2/CONT52MCS1MCS2CONT3/CONT53PPS1-10-//OFFRB[24-26]CONT4/CONT54PPS25%FCB[27-28]CONT5/CONT55CONT6/CONT56SCS/B-1SCS/B-2/[29]CONT7/CONT57CONT8/CONT58SCS/B-1SCS/B-2[30CONT9/CONT59CONT10/CONT60BMS-1BMS-2CONT11/CONT61CONT12/CONT62DAS-1DAS-2//[31-32]CONT13/CONT63ECSCONT14/CONT64SBCHSRS160DCSSOE-11-ESPT200/ENWS201DCS1I/O23I/ONTOP180OPCDCSSISOPWM211~215OPWS221DCSCRT[33]OvationANSIIEEE802.3IEEE802.3CDMA/CDCarrierSenseMultipleAccesswithCollisionDetectionCSMA/CD-12-[34]Ovation100MB100020OvationFastEthernetFig.2-3DCSNetworkStructureoftheUnitOvation2-33914251SIS1-13-[35]Fig.2-4DataFlowofOvationNetwork-14-lllllll-15-llllØØØlØØØFig.2-5HardwareStructureofOvationController-16-Fig.2-6ConnectionStructureofOvationControllerandLocalI/OInterface-17-I/OI/OI/OI/OLED/A/DD/AA/DD/A12/16/8//4-18-A/DD/AA/DD/A12/16/8//OvationI/ODINDINI/OI/OFig.2-7ConnectionModeofTypicalLocalI/OInterfaceandController-19-OvationI/OI/OI/OPCRL8I/O8I/O2-7I/O2-8I/OI/O2I/O864I/O10MB2MBRS485Fig.2-8ConnectionModeofRemoteI/OInterfaceØØDCS-20-ØØØØØCFortranPascalBasic200250ms400100ms125ms50msIEC1131-3IEC1131-30-21-ASMEØØØØØØHEISØØØØ25280.11OvationI/OØExpandØI/OTask(Serial)-22-ØI/OØI/OØØ2I/OØØØØ3BMSSCSANDORNOTRSSIGNALDRIVEALARMSIGNAL/DRIVE//ALARMDCSDRIVESIGNALALARMSIGNALDRIVE//////OKCANCEL-23-/////APSALARMOPFLDCSNDCSELEC_ABNOPFLDCSNDCS///ELEC_ABN6KVM/C400VP/C400VC/C-24-DEHXDPSDCSOVATIONDCSDCSDEHDEHDCS2-9[36-37]Fig.2-9DiagramofDEHandDCSCommunicationInterfaceDEHDCS232/485RLCDEHDCS-25-12350MWOvationDCSDEH-26-14,[38]1BASEDEH2BFDEH3TFDEH4BFCCBF[39]21TFBMoutTSkPIDPTMoutT++Δ=1)((3-1)3-1TMoutBMoutTPΔ-27-PIDkT[40]2BF)()1)(1()(213SFfPSTSTSkTPIDPBMoutTT+++-Δ=3-2)/()1)(1()(1213TTSTTPPPfPSTSTSkTPIDPBMout×+++-Δ=3-3PIDSFTTSPPP/1×PIDkTiSFTPΔdtPdT/ΔkTi3BFCC)()1)(1()(213ULDfPSTSTSkTPIDPBMoutTT+++-Δ=3-43-4BFBMoutPIDULDTPkULDTSkPIDMWTMoutΔ+++Δ=211)(3-53-5MWΔMWULDMW-=ΔPIDULDspPPPTTT-=Δ-28-[41]Fig.3-1DiagramofFuelCommand1[42]-29-Fig.3-2DiagramofCoalCheckandFlowCalculate2-30-[43]-31-Fig.3-3DiagramofSetpointConfineforAirFlow[44]-32-×1410%100119.34100%t/h1410100%kNm3/h[45]Fig.3-4DiagramofSetpointSignalforOxygenContent-33-[46]-34-[47]-35-Fig.3-5CharacteristicCurveofPrimaryFrequencyRegulation[48]-2.514-0.03300.03300.113-142.5-14-0.11314(MW)Hz-36-[49]-37-[50-53]PID100%100%[54-56]OVATION-38-ControlBuilderIN1TOUTTOUTTRINTRIN/MASTATIONMASTATIONMASTATIONMASTATIONSUMABCC=A+BCABCAB=CAPIDPID-39-[57-59]-40---AGC-41-AGCAGCMCS-42-12SYSTEM1100OVATIONOVATION[60-62][63]-Z-Z123MCS-43-41111.1-=-===--ZZTZTEESSSS(4-1)STSZZ()()1211.1-+===-ZZTEESSS(4-2)OVATIONPID4-1Fig.4-1PIDControllerStructureofOvationSystemMCS-44-STSKSTKSGDDIP+++=11)((4-3)PIDPKITDKDTSKSGDD=)([64]STSGDf+=11)(STSKSTSKSGDDDDD+=+=′111)(4-2Fig.4-2ContrastofRealDifferentiationandIdealDifferentiation4-3DDIPTSKSTKSG+++=--111)(4-44-24-4DSDISPTZZTKZTZTKZG+-++-++=)1(2)1()1(2)1()()1(2)1()1(2)1(2)1(11111------++-+-++=ZTZTZKZTZTKDSDISPMCS-45-1111)2(2)1(2)1(2)1(-----++-+-++=ZTTTTZKZTZTKDSDSDISP2211251431)()()(----Φ+Φ+Φ+Φ+Φ==ZZZZZEZYZG4-5,222,22,24321DSDISPDSDSDSDTTKTTKTTTTTTT+++=Φ+-=Φ+=Φ)2(2)2)(2(,)2(44524DSIIDSDSIPDSIDIPIDSTTTTKTTTTKTTTTTKTKT++--