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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WINCCINHEATINGSUPPLYSTAPPLYSTATIONSCONSTANTPRESSUREMONITORINGSYSTEMAPPLICATIONONSTANTVOLTAGESUPPLYBASICWORKINGPRINCIPLESYSTEMUSESAUTOMATICFREQUENCYCONTROLREGULATIONORPUMPMOTORSPEEDPLUSORMINUSPUMPITISPRIMARILYBYTHEFREQUENCYCONTROLSYSTEMPIDREGULATOR,PRESSURESENSORS,LIQUIDLEVELSENSORPOWERCONTROLCIRCUITSANDOTHERCONPONENTSHOSTUSERSCONTROLSYSTEMORCONTROLBOARDLIGHTOVERTHECOUNTERTRANSACTIONS,BUTTONS,SWITCHTOUNDERSTANDANDCONTROLSYSTENOPERATION,BASEDONTHEPIDCONTROLMODE,THEOPERATORINTERFACESETTINGSINWATERPRESSURE,PLCTOPRESSURESETTINGSANDMEASUREDVALUCSFORTHEDEVIATIONPIDOPERATIONANDREGULATIONOFDISTRIBUTIONTHROUGHINVERTERPUMPSPEED,SOTHATWATERPRESSUREWASMAINTAINEDATTHESETVALUESYSTENHANLWARECONFIGURATIONTHESYSTEMUSESSIERNENSS7200PLCANDITSCONFIGURATIONSOFTWARECONSTITUTEACONSTANTWINCCV60WATERPRESSURECONTROLSYSTEM,WATERPRESSUREMONITORINGPROCESSINDUSTROALETHERNCTCONTROLLERFORPLCANDTHEOPERATORSTATIONCOMPUTERCOMMUNICATIONBETWWEENTHEREMOTEI/ONETWORKFORTHEPLCANDTHEOPERATORSTATIONCOMPULERCOMMUNICATIONBETWWEENTHEREMOTEI/ONETWORKFORTHEPLCCONTROLLERANDINVERTER,THESOFTSTARTEROFCOMMUNICATIONBETWWEENEQUIPMENTPLCCONTROLLERMAINLYUSEDTOMONITORANDCONTROLWATERANDELECTRICITYSYSTEMSFOR14PRESSURIZEDPUMPCONVERTERUSINGTHEABBACS51001031A4INVERTER,HMIOPERATOSTATIONSELECTIONDELLCONPUTERS,CONPUTER,INDUSTRIALETHERNETSERVERCARDSIEMENSCONMMUNICATIONSCOMPANYCP1612SOFTWAREDESIGNOFSYSTENTHECONTROLSYSTEMSOFTWARECOMPANYSIEMENSPCS7V52PACKAGE,STEP7V52PLCCONTROLLERMAINLYUSEDTOMONITORANDCONTROLWATERANDELECTRICITYSYSTEMSFOR14PRESSURIZEDPUMPCONVERTERUSINGTHEABBACS510031A4INVETER,HMIOPERATORSTATIONSELECTIONDELLCOMPUTERSCOMPUTER,INDUSTRIALETHERNETSERVERCARDSIEMENSCOMMUNICATIONSCOMPANYCP1612SOFTWAREDESIGNOFSYSTEMTHECONTROLSYSTEMSOFTWARECOMPANYSIEMENSPCS7V52PACKAGESTEPV52PLCCONTROLLERHMIMONITORINGSYSTEMUSEDWINCCV60VERSIONHMISERVERANDOPERATINGSTATIONAREUSINGTHEWINDOWS2000OPERATINGSYSTEMTOHAVEANOPENPROGRAMMINGENVIRONMENTHEATINGSATIONWINCCCONFIGURATIONCONTROLSOFTWAREMAIORCONSTANTPRESSUREWATERSYSTEMANDCOALGALLERYINTWOPARTSIMPLEMENTIONOFTHESYSTEMOFAUTOMATICDETECTIONANDAUTOMATICCONTROLDETECTIONCONSTANTPRESSUREWATERANDCOALGALLCRYEQUIPMENTOPERATIONPARAMETERSTHEREALTIMEDATAACQUISITIONUPLOADSREALTIMEDATAACQUISITIONUPLOADS,REALTIMEDISPLAYANDRECORDINGCIONTROLUNITOPERATIONFAULTALARMANDAUTOMATICPARKINGOPERATIONTHECONSTANTPRESSUREOFWATERSUPPLYPRESSURESYSTEMCONFIGURATIONPARAMETERSREALTIMEMONITORINGREGULATORYPRESSUREPUMPSWATERPRESSUREANDSOVALUEDCOALHANDINGGALLERYINTOCONTROLTHEVOLUMEOFCOALTOSPEED,TOMONITORTHEQUALITYOFCOALCOALCRUSHINGDEGREEOFQUALITYANDIMPURITYPLCBASEDFUZZYCONSTANTWATERSUPPL;YSYSTEMDESIGNCONSTANTPRESSUREWATERSYSTEM本科生毕业设计(论文)外文翻译COMPONENTSFROMTHEWATERSUPPLYSYSTEMPROGRAMMABLECONTROLLER,INVERTER,PRESSURETRANSMITER,ANDTHECONSTACTGROUPONTHEPUMPUNITANDOTHERCOMPONENTSPROGRAMMABLECONTROLLERSELECTIONOFABCONTROLLOGIXSYSTEMITINCLUDESLOGIX5550CONTROLLER,ANALOGINPUTMODULES,DIGITALINPUTANDOUTPUTMODULESANDCOMMUNICATIONMODUTESWHICHANALOGINPUTMODUTEUSEDTOTESTTHEWATERPRESSUREONTHEEXPORTSIGNAL,DIGITALINPUTMODULEANDVALVESKAISTOPPEDINVERSELECTIONOFAB1336PLUSINVERTERINVERTERANDDEVI2CENETCONTROLLERTHTOUGHTHENETWORKFORCOMMUNICATIONCONSTANTPRESSUREWATERPRINCIPLETHEOUTLETCHANNELOFPRESSURESENSORINSTALLATIONWILLEXPORTWATERPRESSURESIGNALSARECONVERTEDTOELECTRICALSIGNALS,SENDPLCFUZZYINFERENCEOPERATION,THEOUTPUTCONTROLSIGNALSTOTHECONVERTER,REGULATINGTHEOPERATIONOFPUMPMOTORSPEED,UNTILTHEACTUALELIMINATIONOFHYDRAULICPRESSUREANDSETTHEDEVIATION,CONSTANTVOLTAGESUPPLYPROGRAMMABLECONTROLLERCANCONTROLPUMPSKAISTOPPEDWHENTHESYSTEMSTARTEDWORKING,INVERTERCONTROLFROMSTARTON1STPUMPFREQUENCYOPERATIONIFUSERSINCREASEDCONSUMPTIONOFTHECONVERTEROUTPUTFREQUENCYUPTO50HZ,THEPRESSUREWILLSTILLBELESSTHANTHESETVALUE,THENAFTERSOMETIMEDELAY,ONTHE1STOFTHEPUMPSWITCHINGFREQUENCYOPERATION;INVERTERSTARTAGAINONTHE2NDPUMPOPERATIONIFPRESSUREISLESSTHANTHESETVALUE,THEYWILLBEONTHE2NDTOPUMPSWITCHINGFREQUENCYOPERATION;INVERTERSTARTAGAINONTHE3RDPUMPOPERATIONUNTILTHEOUTPUTPRESSURESETTINGSTOACHIEVESOFARHOWEVER,IFUSERSTOREDUCEWATERCONSUMPTION,INACCORDANCEWITHTHE“KAISTOP”PRINCIPLEWILLBEFOLLOWEDWITHPUMPSTHISCYCLEREPEATEDLYTOACHIEVECONSTANTPRESSUREWATERSYSTEMFUZZY2PICONTROLALGORITHMASTHEWATERSUPPLYSYSTEMINMANYAREASSUCHASTHEPIPENETWORKANDPUMPSNONLINEAR,TIMEVARYING,ANDTHEVARIABLESSTILLEXISTBETWEENTHECROSSCOUPLING,SOITISDIFFICULTTOESTABLISHAPRECISEMATHEMATICALSYSTEMMODELFORSUCHACOMPLICATEDPROCESSTHATMERELYUSINGTHECONVENTIONALPIDCONTROLISDIFFICULTTOACHIEVETHEDESIREDCONTROLFUZZYCONTROLISNOTDEPENDENTONTHEMATHEMATICALMODELANDTHERIGHTPARAMETERSSENSITIVETOTHEMERITS,FUZZYUSEDTOCONTROLTHEWATERSUPPLYSYSTEM,WECANIMPROVETHECONTROLSYSTEMDYNAMICPERFORMANCEBUTFUZZYCONTROLSYSTEMSTEADYSTATEPERFORMANCEISPOOR,THISDESIGNOFADUALMODEFUZZY2PICONTROL,ASSHOWNINFIGURE2,ANDITSDESIGNTHINKINGIS;WHENTHEPRESSUREISGREATERERRORWHENUSINGFUZZYCONTROL,TOOBTAINGOODTRANSIENT;WHENTHEPRESSUREONTHESTEADSTATEERRORINTOSMALLER,SWITCHEDTOPROCESSFROMPICONTROL,TOOBTAINGOODSTEADYPRECISIONPICONTROLALGORITHMSANDFUZZYCONTROLALGORITHMSAREPLC,SWITCHINGTIMEBYACOMPUTERPROGRAMBASEDONPRIORTOTHEERRORAUTORMATICALLYTHESYSTEMUSESTWOINPUTSINGLEOUTPUTFUZZYCONTROLLERTOPRESSURETHEDESIREDVALUEANDTHEMEASUREMENTOFEERRORANDTHEERRORASAFUZZYCONTROLLERINPUTLINGUISTICVARIABLES,TRANSDUCERFREQUENCYVARIATIONULANGUAGEASOUTPUTVARIABLESTOEERROR,THEERRORRATEECANDCONTROLVOLUMEUFUZZYSUBSETOFNB,NS,ZE,PS,PBANDTHEYQUANTIFIEDTHEDOMAINOFSEVENGRADES,3,2,1,0,1,2,3FUZZYSUBSETOFTHEMEMBERSHIPFUNCTIONUSEDTRIANGLEINITIALEXPERIENCEOFFUZZYCONTROLRULES,ASSHOWNINTABLE1UNDERTHESERULESCALCULATIONOFTHETOTALFUZZYRELATIONR本科生毕业设计(论文)外文翻译WHEREX,UFUZZYRELATIONSHIPMATRIXONBEHALFOFTHE“CARTESIAN”ANDTHE“AND”OPERATORACCORDINGMINIMAXINFERENCERULESSYNTHESISOFOUTPUTVARIABLESLANGUAGEDOMAINOFFUZZYSETSUUFINALLY,THEWEIGHTEDAVERAGEMETHODUSEDFORSOLUTIONSVAGUEANDFUZZYVOLUMEUCONVERTEDINTOPRECISEAMOUNTUTHEPROCESSISCARRIEDOUTOFFLINE,EVENTUALLYFUZZYCONTROLTABLE,ASSHOWNINTABLE2THISFORMOFTHEPLCMEMORYSTORAGE,REALTIMECONTROL,FUZZYCONTROLWOULDSTREAMLINETHEPROCESSFORFINDINGINQUIRIESONTHEQUESTIONNAIREPROCESSPARAMETRICSELECTIONOFFREQUENCYWATERSYSTEMAREASONABLESELECTIONPRESSURECONTROLPARAMETERSCONSTANTPRESSURETOACHIEVEENERGYSUPPLYSYSTEMTHEREALIZATIONOFISTHISOBJECTIVETHEKEYISPRESSURECONTROLPARAMETERSELECTION,USUALLYPIPENETWORKPRESSURECONTROLPOINTTWOCHOICEAPIPENETWORKISTHEMOSTNEGATIVEPRESSUREONCONSTANTPRESSURECONTROLANDTHEOTHERISTHECONSTANTPRESSUREPUMPOUTLETPRESSURECONTROLHOWWILLTHETWOCHOICES,WEHAVETOANALYZESIMPLENETWORKPRESSUREONTHEMOSTDISADVANTAGEDCONSTANT,THEWATERPIPENETWORKBYQMAXREDUCEDTOQ1,PUMPSREDUCESPEED,ANDWATERCHARACTERISTICCURVEOFAUNCHANGEDATTHEINTERSECTIONPOINTC,PUMPCHARACTERISTICCURVEDOWNWARD,NETWORKPRESSUREONTHEMOSTDISADVANTAGEDH0ANDTHEPUMPOUTLETPRESSURECONSTANTPRESSURECONTROL,HAUNCHANGED,REDUCEWATERCONSUMPTIONBYQMAXQIANDHATOPAYTOPOINTB,WATERCHARACTERISTICCURVEUPWARDATHROUGHB,THENETWORKMOSTDISADVANTAGEDHBPRESSUREINTOPOINTSHBH0LIFTTHEPOORNAMELY,ENERGYWASTE,SOICHOSETHEMOSTDISADVANTAGEDNETWORKPOINTSFORTHESMALLESTHEADPRESSURECONTROLPARAMETERSFORMATIONPRESSUREONTHECLOSEDLOOPCONTROLSYSTEM,MAKINGTHEPUMPSPEEDANDPIDREGULATORSETPRESSUREMATCH,ACHIEVEMAXIMUMENERGYSAVINGEFFECT,BUTTHECONSTANTPRESSURETOACHIEVETHEPURPOSEOFWATERSUPPLYTHECONVERTERANDPUTINTOOPERATIONAFTERTHECOMMISSIONINGOFTHESYSTEMTOENSUREOPTIMUMOPERATIONOFTHESTATEMEANSNECESSARYACCORDINGTOTHEINVERTERLOADINERTIASIZEOFTHESTARTANDSTOPTHEMOTORWHENTHETIMEISNOTTHESAME,SETTIMEISTOOSHORTTOBEACCELERATEDWHENTHEINVERTEROVERCURRENT,OVERVOLTAGEDECELERATINGPROTECTION;SETTIMEWILLLEADTOEXCESSIVESPEEDCONVERTERRUNNINGINTHESYSTEMBECOMEREGULATESLOW,DELAYEDRESPONSE,CONTINGENCYABILITYISPOORYISYSTEMATTHESTATESHORTTERMINSTABILITYTOPROTECTTHECONVERTERISNOTTRIPPING,THESCENEOFMANYOFTHEMUSINGCONVERTERINCREASESDECELERATIONTIMESETTINGTOOLONG,THEPROBLEMSTHEYBRINGVERYEASILYBETHEAPPEARANCEOFTHENORMALEQUIPMENTANDHIDE,BUTTHECONVERTEROPERATINGINLESSTHANOPTIMALSTATESOTHESCENEWHENUSEDACCORDINGTOTHELOADDRIVENBYADIFFERENTNATURE,TESTINGOUTTHEPERMISSIONOFTHESHORTESTLOADINCREASESDECELERATIONTIME,SETTINGFORTHEPUMPMOTOR,PLUSDECELERATIONTIMEINTHECHOICEBETWEEN0220SECONDS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WINCCV60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CP16123系统的软件设计本控制系统软件采用西门子公司的PCS7V52软件包,PLC控制器采用STEP7V52,HMI监控系统采用WINCCV60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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