kv区域性降压变电所一次系统设计外文翻译.docx
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kv区域性降压变电所一次系统设计外文翻译.docx
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kv区域性降压变电所一次系统设计外文翻译
封面
作者:
PanHongliang
仅供个人学习
110kVsubstationsdigitaltransformationcaseanalysis
[Abstract]Thispaperbrieflyintroducesthebasicconceptofdigitalsubstation,Analysisedsubstationdigitizationreconstructionexamplesbasedon110kVsubstations.Adetailedanalysisedofthesubstationsecondaryequipmentsuchaschangesinoperatingmode.DigitalSubstationdiscussedpossibleoptionsforreform,andaccordingtotheresultsoftheoperationofdigitalsubstationworkoutcountermeasuresandRecommended.
[Keywords]digitalsubstation。
automation。
ElectronicTransformer
Withautomationandcomputernetworktrafficmonitoringandprotectiontechnology,therapiddevelopmentinPasttwodecadeshasmadesubstantialprogresshasbeenachievedforthedigitalsubstationautomationsystem.Networklaidthetechnicalfoundationforfulfillingtheotherhand,withthespecialhigh-voltagelarge-capacity.Thegradualformationoflargescalegrid,thegridstableandreliablecontrolofthesafetyinformationexchange,Andputforwardhigherrequirementsoftheurgent.DigitalSubstationsubstationconstructionwillbeTrends.
1.thecharacteristicsofdigitalsubstation
Thebasicfeaturesofdigitalsubstationcanbesummarizedas:
intelligentprimaryequipment,secondaryequipmentnetwork,automatedoperationandmanagementsystem.Sincethestationrelativetoconventionalintegrated,digitalsubstationequipment,theprotectiveprinciple,theinternalalgorithm,logichasnotfundamentallychanged,butinsamplingdigital,networkedcommunicationmedium,communicationinterfacestandardizationbroughtchangestoimprovethereliabilityofsubstationautomationsystem.Reliabilityofinformationtransmissioncanbeachieved。
secondarywiringissimple。
measurementaccuracy。
shareunifiedinformationplatform,reduceduplicationofequipment。
easyfunctionalityexpansion。
managementautomation.
2.110kVSubstationrehabilitationprograms
1)apartof.110kVsinglebusbarsub-mainwiringmethods,110kVline3times,withastandbypowersource。
themainvolumeinto2setsof3variables。
35kVmainconnectionmethodfortheSingleBus,35kVline5back。
10kVmainconnectionisasinglebusbarway,2setsofcapacitors,10kVline18back,2setsofgroundchange,thereplacementoftransformersfortheelectronic,installationofPTparallelcombiner。
replacementinsituterminalbox,installationswitchesintelligentunit,toachievelocalcontrolswitch。
configurationintegrateddigitalprotectionmonitoringdevicesanddigitalpowermeter,equippedwithdigitalstandbypowersourcedevice,caremonitoringdevicesandfocusgroupscreenintervalofcombiner.
2)stationcontrollayer.Stationcontrollayerconsistsofaunitsmonitoringhost,2MachinesGPScommunicationsmanagementcomponenttoformthestationcontrollevelstarnetwork,monitoringthehostmachineautomaticallyselectsthehostcommunicationmanagement,communicationmanagementunitandtheintervalasanindependentlinklayerdevice,andthebayleveldevicescommunication,accesstoremote,telemetrydata,onlythehostwiththeremoteauthority,communicationmanagementunitintervaloffiveanti-blockingcross-sequenceandfunctionofsmallcurrentgroundingline,fortheintervallayerandprocesslayerdevicewhenthehardright.
3)spacer.Intervallayeristhecoreofthestationautomation,communicationsrelatedtotheimplementationoftheprocesslevelGOOSE35kV,10kVlines,capacitors,groundchange,sub-protectiveandmonitoringlocalinstallation。
110kVMainTransformerProtectionandControlfocusgroupbackscreen,installedinthecontrolRoom,locatedopticalinterfacescreen,providingthedistancetothecontrolroomoftheopticalconversioninterface。
threesidesofthemaintransformerbackupprotectionone,110kVsegmentationandonepreparedfromthecast。
monitoringinterfacecommunication,lockoutprotectionassociation。
privateGOOSEnetworktoachieveimportant,thekeytripcontrol,stationcontrollayerGOOSEnetwork,toachievecontrolofauxiliarytrippingminor,suchasthelowcycleloadshedding.
4)theprocesslevel.Parallelcombinationprovidesvoltagevoltage,theoutputintervalofcombinertoprovidethevoltagesignal。
themaintransformerandbackofeachsideofthedifferentialtransformerisdividedinto,settingseparatecombiner,combinertransformertransformerprotectiongroupinthemainscreen。
110kVlinesegmentcombinerconfiguredindividually,groupwithinthecontrolroomscreenlinecombiner。
35kV10kVPT1setofeachcombinerconfiguredtoachievePTparallelfunctions。
arrangedinthesub-cabinet。
35kV10kVpartoftheaccessbysmall-signalcombiner,arrangedinswitchcabinet.
5)communicationnetwork.a.stationcontrolstationcontrolinterlayerlayernetworklayernetwork:
setaswitch,theInternetcommunicationsmanagementunitmonitoringhostdualGPS。
intervallayernetwork:
at10kVISectionIISectionwereplacedonaswitch,35kVputaswitchinparagraph,themaincabinettosetupacommunicationsswitch,focusgroupscreenspacerdevicetothecommunicationsnetworkofthemaincabinetb.theprocesslevel,GOOSEprivatenetwork.Processlayernetwork:
electronictransformerCTintervalofcombineraccess,electronicaccesstothevoltagetransformerPTmerger,voltageoutputaccessintervalofcombinercombiner。
GOOSENetwork:
ringnetworkcomposedof1#MainVariableintervalProtectionandControlandsmartcellgroupintoaRSG2100,2#MainTransformerProtectionandControlandintelligenceunitintervalgroupintoanotherRSG2100,110kVlineintervalofProtectionandControlandintelligenceunitsetintoanotherRSG2100,composedofasingleinter-switchinterconnectring.
6)Afterthetransformationofthesubstationhastheadvantage.a.back-officesystemintegration,areincompliancewithrequirementsofthesecondaryconsolidation。
b.with61850protocol,consistency,andsimpleinterfacewithoutalotofsignalcableinstallationandcommissioningworkissmall,canreducethecostofmaintenanceandrenovation。
c.useofelectronicCT/PT,non-core,eliminatingthemagneticsaturation。
toavoidtheCTopencircuit,earthfaultinthesecondarycircuitproblems。
d.long-distancetransmissionofdigitalsignalsusingopticalfiber,anti-interferenceability,reducingthetransmissionerror。
ofnearlystillusethehard-wiringfromthetransmission,reducingthenumberofdevicestosimplifystructure.
3.substationsprotectionequipmentremotemonitoringandmanagementsystemsanalysisanddesign
1)substationprotectionequipmentremotemonitoringandmanagementsystem
Thesystemforpowercompaniestoprotectmanagement'sapplicationrequirementsdesignedtoprotectthedepartmentaimstoprovideamanagementandmaintenanceofstationequipmentplatform,thesystemshouldmeetthefollowingfeatures:
timely,accuratecollectionofstationequipment,real-timeinformation。
accuratemonitoringofallsettingrelaystationchanges,andtimelywarning。
comprehensivemanagementofalltherelaystationsrecordeddata。
providesengineerseasyaccesstoanyvirtualchannelstoallrelaystations。
provideafriendlyuserinterfaceformaintenanceandmanagement。
Accurateandfastdataretrievalandquery。
highlevelofsecurity,strictmanagementofoperatingauthorityandprovidesauditfunction。
systemhasahighscalability,maintainability。
systemisstable,safeandreliable。
goodman-machineinterfaceAccordingtotheactualneedsoftheapplicationofthehierarchicalprincipleandopensystems,thewholesystemisdividedintoenterpriseapplicationlayer,servicelayer,stationcontrolmanagementandequipmentlevel.
Stationcontrolstationsrelaydatasubsystemisresponsibleforthecollection,processing,valuationandmanagementfunctionsincludethefollowingmodules:
RTDB:
RealTimeDatabase,real-timedatamanagement,systemsmanagementasthecoreofthesystemresponsibleformanagingalloftherealtimedata,events,policerecords。
HMI:
HumanMachineInterface,localdisplayandcontrolmanagement。
DCAl03:
DataCollectionApplicationwithIECl03,IECl03communicationsprocessing,completewithsupportIECl03relaycommunicationsbetweentheStatute,tocollectreal-timedatasenttorelayreal-timedatabase。
asSupport103fortherelaysettingandrecordeddata,thecorrespondingvalueformanagement。
Courier:
CourierDCAcommunicationsprocessing,completewithrelaycommunicationbetweentherelayreal-timedatacollection,eventdata,protectionsetting,recordeddata。
Modbus:
ModbusDCAStatuteofthecommunicationprocessing。
DNP30:
DNP3.0DCAStatuteofthedataprocessing。
GD8Calc:
GD8-linebasis,toprovideadvancedautomaticcalculationandautomaticcontrolfunctions。
VC:
VirtualConnectionManager,providingavirtualchannelwiththeserverconnectionand,ifnecessary,sendarequesttotheDCAloancommunicationchannel。
DNPDPA:
DPA(DataProcessApplication)typeapplications,communicatewiththeserverthroughDNP3.0statute.
Thissubsystemisresponsibleforthedatacollectionpoints,andsavedtotheserverSQLServerdatabase,includingthefollowingmodules:
DC:
DataCollectionapplicationstationcontrolsubsystemisresponsibleforcommunicationandexchangethroughtheDNP30real-timedataandeventdata,andtothereal-timedata。
RTDB:
real-timedatamanagement,includingreal-timedatamanagement,andavarietyofreal-timedataaccessinterface(sharedmemoryTCPIPdatabase),andsavethehistoricaldatabase,toprovidelockcontrol。
usermanagement:
Manageuserroles,password,operatingprivilege,etc.。
rolemanagement,managerialroleanddefinetheappropriateauthority。
configurationmanagement:
managementstationdataandcommunicationwithinthepa
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