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外文翻译Wincc在供热站恒压供水监控系统中的应用.doc

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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.Hostuserscontrolsystemorcontrolboardlightoverthecountertransactions,buttons,switchtounderstandandcontrolsystenoperation,BasedonthePIDcontrolmode,theoperatorinterfacesettingsinwaterpressure,PLCtopressuresettingsandmeasuredvalucsforthedeviationPIDoperationandregulationofdistributionthroughinverterpumpspeed,sothatwaterpressurewasmaintainedatthesetvalue.SystenhanlwareconfigurationThesystemusesSiernensS7200PLCanditsconfigurationsoftwareconstituteaconstantWinCCV6.0Waterpressurecontrolsystem,waterpressuremonitoringprocess.IndustroalEthernctcontrollerforPLCandtheoperatorstationcomputercommunicationbetwweentheRemoteI/OnetworkforthePLCandtheoperatorstationcompulercommunicationbetwweentheRemoteI/OnetworkforthePLCcontrollerandinverter,thesoftstarterofcommunicationbetwweenequipment.PLCcontrollermainlyusedtomonitorandcontrolwaterandelectricitysystems.For14pressurizedpumpconverterusingtheABBAcs51001031A4inverter,HMIoperatostationselectionDELLconputers,conputer,IndustrialEthernetservercardSiemensconmmunicationscompanyCP1612.SoftwaredesignofSystenThecontrolsystemsoftwarecompanySiemensPCS7V5.2package,STEP7V5.2PLCcontrollermainlyusedtomonitorandcontrolwaterandelectricitysystems.For14pressurizedpumpconverterusingtheABBACS510031A4inveter,HMIoperatorstationselectionDELLcomputers.computer,IndustrialEthernetservercardSiemenscommunicationscompanyCp1612SoftwaredesignofSystemThecontrolsystemsoftwarecompanySiemensPCS7V5.2package.STEPV5.2PLCcontroller.HMImonitoringsystemusedWinCCV6.0version.HMIserverandoperatingstationareusingtheWindows2000operatingsystemtohaveanopenprogrammingenvironment.HeatingSationWinccconfigurationcontrolsoftwaremaiorconstantpressurewatersystemandcoalGalleryintwoparts.Implementionofthesystemofautomaticdetectionandautomaticcontrol.DetectionconstantpressurewaterandcoalGallcryequipmentoperationparameters.therealtimedataacquisition.uploads.realtimedataacquisition.uploads,realtimedisplayandrecording.Ciontrolunitoperation.faultalarmandautomaticparkingoperation.Theconstantpressureofwatersupplypressuresystemconfigurationparameters.realtimemonitoringregulatorypressurepumpswaterpressureandsovalued.CoalHandingGalleryintocontrolthevolume.ofcoaltospeed,tomonitorthequalityofcoalcoalcrushingdegreeofqualityandimpurityPLCBasedFuzzyConstantwatersupplysystemdesignconstantpressurewatersystem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,onthe1stofthepumpswitchingfrequencyoperationInverterstartagainonthe2ndpumpoperation.Ifpressureislessthanthesetvalue,theywillbeonthe2ndtopumpswitchingfrequencyoperationInverterstartagainonthe3rdpumpoperationuntiltheoutputpressuresettingstoachievesofar.However,ifuserstoreducewaterconsumption,inaccordancewiththeKaistopprinciplewillbefollowedwithpumps.Thiscyclerepeatedlytoachieveconstantpressurewatersystem.Fuzzy2PIcontrolalgorithmAsthewatersupplysysteminmanyareassuchasthepipenetworkandpumpsnonlinear,timevarying,andthevariablesstillexistbetweenthecrosscoupling,soitisdifficulttoestablishaprecisemathematicalsystemmodel.ForsuchacomplicatedprocessthatmerelyusingtheconventionalPIDcontrolisdifficulttoachievethedesiredcontrol.Fuzzycontrolisnotdependentonthemathematicalmodelandtherightparameterssensitivetothemerits,Fuzzyusedtocontrolthewatersupplysystem,wecanimprovethecontrolsystemdynamicperformance.ButFuzzyControlSystemsteadystateperformanceispoor,thisdesignofadualmodeFuzzy2PIcontrol,Asshowninfigure2,anditsdesignthinkingiswhenthepressureisgreatererrorwhenusingfuzzycontrol,toobtaingoodtransientWhenthepressureonthesteadstateerrorintosmaller,switchedtoprocessfromPIcontrol,toobtaingoodsteadyprecision.PIcontrolalgorithmsandfuzzycontrolalgorithmsarePLC,switchingtimebyacomputerprogrambasedonpriortotheerrorautormatically.Thesystemusestwoinputsingleoutputfuzzycontroller.topressurethedesiredvalueandthemeasurementofeerrorandtheerrorasafuzzycontrollerinputlinguisticvariables,transducerfrequencyvariationulanguageasoutputvariables.Toeerror,theerrorrateecandcontrolvolumeufuzzysubsetofNB,NS,ZE,PS,PBandtheyquantifiedthedomainofsevengrades,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,UfuzzyrelationshipmatrixonbehalfoftheCartesianandtheandoperator.AccordingminimaxinferencerulessynthesisofoutputvariableslanguagedomainoffuzzysetsUUFinally,theweightedaveragemethodusedforsolutionsvagueandfuzzyvolumeUconvertedintopreciseamountu.Theprocessiscarriedoutoffline,eventuallyFuzzyControlTable,asshownintable2.ThisformofthePLCmemorystorage,realtimecontrol,fuzzycontrolwouldstreamlinetheprocessforfindinginquiriesonthequestionnaireprocess.ParametricSelectionofFrequencywatersystemareasonableselectionpressurecontrolparametersconstantpressuretoachieveenergysupplysystem.Therealizationofisthisobjectivethekeyispressurecontrolparameterselection,usuallypipenetworkpressurecontrolpointtwochoiceapipenetworkisthemostnegativepressureonconstantpressurecontrolandtheotheristheconstantpressurepumpoutlet.pressurecontrol.Howwillthetwochoices,wehavetoanalyzesimpleNetworkpressureonthemostdisadvantagedconstant,thewaterpipenetworkbyQMAXreducedtoQ1,pumpsreducespeed,andwatercharacteristiccurveofAunchangedattheintersectionpointC,pumpcharacteristiccurvedownward,networkpressureonthemostdisadvantagedH0.Andthepumpoutletpressureconstantpressurecontrol,Haunchanged,reducewaterconsumptionbyQMAXQIandHatopaytopointB,watercharacteristiccurveupwardAthroughB,thenetworkmostdisadvantagedHbpressureintopoints.HbH0liftthepoornamely,energywaste,soIchosethemostdisadvantagednetworkpointsforthesmallestheadpressurecontrolparameters.Formationpressureontheclosedloopcontrolsystem,makingthepumpspeedandPIDregulatorsetpressurematch,achievemaximumenergysavingeffect,buttheconstantpressuretoachievethepurposeofwatersupply.theconverterandputintooperationafterthecommissioningofthesystemtoensureoptimumoperationofthestatemeansnecessary.Accordingtotheinverterloadinertiasizeofthestartandstopthemotorwhenthetimeisnotthesame,Settimeistooshorttobeacceleratedwhentheinverterovercurrent,overvoltagedeceleratingprotectionSettimewillleadtoexcessivespeedconverterrunninginthesystembecomeregulateslow,delayedresponse,contingencyabilityispoor.Yisystematthestateshortterminstability.Toprotecttheconverterisnottripping,thesceneofmanyofthemusingconverterincreasesdecelerationtimesettingtoolong,theproblemstheybringveryeasilybetheappearanceofthenormalequipmentandhide,buttheconverteroperatinginlessthanoptimalstate.Sothescenewhenusedaccordingtotheloaddrivenbyadifferentnature,testingoutthepermissionoftheshortestloadincreasesdecelerationtime,setting.Forthepumpmotor,plusdecelerationtimeinthechoicebetween0.220seconds.本科生毕业设计(论文)外文翻译外文翻译Wincc在供热站恒压供水监控系统中的应用1.恒压供水基本工作原理系统采用变频调速方式自动调节谁笨点击转速或加、减泵。它主要是由变频调速系统、PID。调节器、压力传感器、液位传感器、动力控制线路等组成,用户通过上位监控系统或控制柜面板上的指示灯、按钮、转换开关来了解和控制系统的运行。在基于PID的控制方式下,操作人员在操作界面设定供水压力,PLC对压力设定值和测量值的偏差进行PID运算,并通过变频器调节配水泵系统转速,是供水压力保持在设定值。2.系统的硬件配置本系统采用西门子公司的S7200系列PLC及其组态软件Winccv6.0构成恒压供水控制系统,实现供水过程的压力监控,工业以太网用于PLC控制器和计算机操作站之间的通讯,远程I/O网用于PLC控制器与变频器、软启动器的设备之间的通讯,PLC控制权威主要用来检测和控制供水系统和供电系统、用于14加压泵的变频器采用ABB公司的ACS51001031A4变频器,HMI操作站选用DELL计算机,工控机。服务器的工业以太网通讯网卡采用西门子公司的CP1612.3.系统的软件设计本控制系统软件采用西门子公司的PCS7V5.2软件包,PLC控制器采用STEP7V5.2,HMI监控系统采用Winccv6.0版本,HMI服务器和操作站都采用的是Windows2000操作系统具有开放的编程环境.

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