外文翻译Wincc在供热站恒压供水监控系统中的应用.doc

本科生毕业设计（论文）外文翻译外文原文WinccinheatingsupplystapplystationsConstantPressureMonitoringSystemApplicationonstantvoltagesupplybasicworkingprincipleSystemusesAutomaticFrequencyControlregulationorpumpmotorspeed.Plusorminuspump.ItisprimarilybytheFrequencyControlSystem.PIDregulator,pressuresensors,liquidlevelsensorpowercontrolcircuitsandotherconponents.Hostuserscontrolsystemorcontrolboardlightover-the-countertransactions,buttons,switchtounderstandandcontrolsystenoperation,BasedonthePIDcontrolmode,theoperatorinterfacesettingsinwaterpressure,PLCtopressuresettingsandmeasuredvalucsforthedeviationPIDoperationandregulationofdistributionthroughinverterpumpspeed,sothatwaterpressurewasmaintainedatthesetvalue.SystenhanlwareconfigurationThesystemusesSiernensS7-200PLCanditsconfigurationsoftwareconstituteaconstantWinCCV6.0Waterpressurecontrolsystem,waterpressuremonitoringprocess.IndustroalEthernctcontrollerforPLCandtheoperatorstationcomputercommunicationbetwweentheRemoteI/OnetworkforthePLCandtheoperatorstationcompulercommunicationbetwweentheRemoteI/OnetworkforthePLCcontrollerandinverter,thesoftstarterofcommunicationbetwweenequipment.PLCcontrollermainlyusedtomonitorandcontrolwaterandelectricitysystems.For1#-4#pressurizedpumpconverterusingtheABBAcs510-01-031A4inverter,HMIoperatostationselectionDELLconputers,conputer,IndustrialEthernetservercardSiemensconmmunicationscompanyCP1612.SoftwaredesignofSystenThecontrolsystemsoftwarecompanySiemensPCS7V5.2package,STEP7V5.2PLCcontrollermainlyusedtomonitorandcontrolwaterandelectricitysystems.For1#4#pressurizedpumpconverterusingtheABBACS510-031A4inveter,HMIoperatorstationselectionDELLputer,IndustrialEthernetservercardSiemenscommunicationscompanyCp1612SoftwaredesignofSystemThecontrolsystemsoftwarecompanySiemensPCS7V5.2package.STEPV5.2PLCcontroller.HMImonitoringsystemusedWinCCV6.0version.HMIserverandoperatingstationareusingtheWindows2000operatingsystemtohaveanopenprogrammingenvironment.HeatingSationWinccconfigurationcontrolsoftwaremaiorconstantpressurewatersystemandcoalGalleryintwoparts.Implementionofthesystemofautomaticdetectionandautomaticcontrol.DetectionconstantpressurewaterandcoalGallcryequipmentoperationparameters.thereal-timedataacquisition.uploads.real-timedataacquisition.uploads,real-timedisplayandrecording.Ciontrolunitoperation.faultalarmandautomaticparkingoperation.Theconstantpressureofwatersupplypressuresystemconfigurationparameters.real-timemonitoringregulatorypressurepumpswaterpressureandsovalued.CoalHandingGalleryintocontrolthevolume.ofcoaltospeed,tomonitorthequalityofcoal(coalcrushingdegreeofqualityandimpurity)PLC-BasedFuzzyConstantwatersuppl；ysystemdesignconstantpressurewatersystem本科生毕业设计（论文）外文翻译components.Fromthewatersupplysystemprogrammablecontroller,inverter,pressuretransmiter,andtheconstactgrouponthepumpunitandothercomponents.ProgrammablecontrollerselectionofABControlLogixsystem.ItincludesLogix5550controller,analoginputmodules,digitalinputandoutputmodulesandcommunicationmodutes.Whichanaloginputmoduteusedtotestthewaterpressureontheexportsignal,digitalinputmoduleandvalvesKaistopped.InverselectionofAB1336PlusInverter.InverterandDevi2cenetcontrollerthtoughthenetworkforcommunication.ConstantPressureWaterPrincipleTheoutletchannelofpressuresensorinstallationwillexportwaterpressuresignalsareconvertedtoelectricalsignals,sendPLCfuzzyinferenceoperation,theoutputcontrolsignalstotheconverter,regulatingtheoperationofpumpmotorspeed,untiltheactualeliminationofhydraulicpressureandsetthedeviation,constantvoltagesupply.ProgrammablecontrollercancontrolpumpsKaistopped.Whenthesystemstartedworking,invertercontrolfromstarton1stpumpfrequencyoperation.Ifusersincreasedconsumptionoftheconverteroutputfrequencyupto50Hz,thepressurewillstillbelessthanthesetvalue,thenaftersometimedelay,onthe1stofthepumpswitchingfrequencyoperation；Inverterstartagainonthe2ndpumpoperation.Ifpressureislessthanthesetvalue,theywillbeonthe2ndtopumpswitchingfrequencyoperation；Inverterstartagainonthe3rdpumpoperationuntiltheoutputpressuresettingstoachievesofar.However,ifuserstoreducewaterconsumption,inaccordancewiththe“Kai-stop”principlewillbefollowedwithpumps.Thiscyclerepeatedlytoachieveconstantpressurewatersystem.Fuzzy2PIcontrolalgorithmAsthewatersupplysysteminmanyareas(suchasthepipenetworkandpumps)nonlinear,time-varying,andthevariablesstillexistbetweenthecross-coupling,soitisdifficulttoestablishaprecisemathematicalsystemmodel.ForsuchacomplicatedprocessthatmerelyusingtheconventionalPIDcontrolisdifficulttoachievethedesiredcontrol.Fuzzycontrolisnotdependentonthemathematicalmodelandtherightparameterssensitivetothemerits,Fuzzyusedtocontrolthewatersupplysystem,wecanimprovethecontrolsystemdynamicperformance.ButFuzzyControlSystemsteady-stateperformanceispoor,thisdesignofadual-modeFuzzy2PIcontrol,Asshowninfigure2,anditsdesignthinkingis；whenthepressureisgreatererrorwhenusingfuzzycontrol,toobtaingoodtransient；Whenthepressureonthestead-stateerrorintosmaller,switchedtoprocessfromPIcontrol,toobtaingoodsteadyprecision.PIcontrolalgorithmsandfuzzycontrolalgorithmsarePLC,switchingtimebyacomputerprogrambasedonpriortotheerrorautormatically.Thesystemusestwo-inputsingle-outputfuzzycontroller.topressurethedesiredvalueandthemeasurementofeerrorandtheerrorasafuzzycontrollerinputlinguisticvariables,transducerfrequencyvariationulanguageasoutputvariables.Toeerror,theerrorrateecandcontrolvolumeufuzzysubsetof(NB,NS,ZE,PS,PB)andtheyquantifiedthedomainofsevengrades,(-3,-2,-1,0,1,2,3).Fuzzysubsetofthemembershipfunctionusedtriangle.Initialexperienceoffuzzycontrolrules,asshownintable1.UndertheserulescalculationofthetotalfuzzyrelationR:本科生毕业设计（论文）外文翻译Wherex,Ufuzzyrelationshipmatrixonbehalfofthe“Cartesian”andthe“and”operator.AccordingminimaxinferencerulessynthesisofoutputvariableslanguagedomainoffuzzysetsU:UFinally,theweightedaveragemethodusedforsolutionsvagueandfuzzyvolumeUconvertedintopreciseamountu.Theprocessiscarriedoutoffline,eventuallyFuzzyControlTable,asshownintable2.ThisformofthePLCmemorystorage,real-timecontrol,fuzzycontrolwouldstreamlinetheprocessforfindinginquiriesonthequestionnaireprocess.ParametricSelectionofFrequency-watersystemareasonableselectionpressurecontrolparametersconstantpressuretoachieveenergy-supplysystem.Therealizationofisthisobjectivethekeyispressurecontrolparameterselection,usuallypipenetworkpressurecontrolpointtwochoice:apipenetworkisthemostnegativepressureonconstantpressurecontrolandtheotheristheconstantpressurepumpoutlet.pressurecontrol.Howwillthetwochoices,wehavetoanalyzesimpleNetworkpressureonthemostdisadvantagedconstant,thewaterpipenetworkbyQMAXreducedtoQ1,pumpsreducespeed,andwatercharacteristiccurveofA(unchanged)attheintersectionpointC,pumpcharacteristiccurvedownward,networkpressureonthemostdisadvantagedH0.Andthepumpoutletpressureconstantpressurecontrol,Haunchanged,reducewaterconsumptionbyQMAXQIandHatopaytopointB,watercharacteristiccurveupwardAthroughB,thenetworkmostdisadvantagedHbpressureintopoints.Hb-H0liftthepoornamely,energywaste,soIchosethemostdisadvantagednetworkpointsforthesmallestheadpressurecontrolparameters.Formationpressureontheclosed-loopcontrolsystem,makingthepumpspeedandPIDregulatorsetpressurematch,achievemaximumenergy-savingeffect,buttheconstantpressuretoachievethepurposeofwatersupply.theconverterandputintooperationafterthecommissioningofthesystemtoensureoptimumoperationofthestatemeansnecessary.Accordingtotheinverterloadinertiasizeofthestartandstopthemotorwhenthetimeisnotthesame,Settimeistooshorttobeacceleratedwhentheinverterovercurrent,overvoltagedeceleratingprotection；Settimewillleadtoexcessivespeedconverterrunninginthesystembecomeregulateslow,delayedresponse,contingencyabilityispoor.Yisystematthestateshort-terminstability.Toprotecttheconverterisnottripping,thesceneofmanyofthemusingconverterincreasesdecelerationtimesettingtoolong,theproblemstheybringveryeasilybetheappearanceofthenor