多变电站故障录波数据同步自动化方法与实现-王海港

431Vol.43No.1201511PowerSystemProtectionandControlJan.1,2015Autosynchronizationmethodanditsimplementationoffaultrecorderdatafrommulti-substationsWANGHaigang,HUANGTaigui,SUNYueqin,WANGTongwen,XIEMin(AnhuiElectricPowerCompany,Hefei230022,China)Abstract:Atpresent,faultrecorders(FR)ofmulti-substationareconnectedtoanetwork.Afterafaultoccurs,duetothetimeunsynchronizedFRwhichuseimpulsesignalastimesynchronizationmethod,itishardtoassociatedifferentFRdatacontributedbydifferentFRfromdifferentsubstationsatthesametime,especially,severalfaultshappenedonpowergridinashorttime.Tosolvethisproblem,bydetectingtimedifferencesofdifferentFRlocatedindifferentsubstationsthroughsoftwaremethod,faultdatafromFRofmulti-substationsisautomaticallyassociated.Furthermore,asynchronizationmethodformulti-substationFRdata,whichdoesnotutilizetheparametersoftransmissionlines,isputforwardtosynchronizetheassociateddata.ThismethodisimplementedinaFRnetworksystembyusingsoftware,whichprovedthatitisareal-time,moreconvenientandaccuratemethodforfaultanalysisofpowergrid.Keywords:faultrecorder;networkconnection;autodatasynchronization;withoututilizingparameters;multi-substationsTM938TM76A1674-3415(2015)01-0102-06[1]()()[2][3][4][5][6-9][10]220kV[11]-103-112FFig.1Diagramfortypicalfaultrecordernetwork1Td2Fig.2TimedeferencedetectionprocedureofFR(1) TA1(2) TB1BtTB2(3) TdAB2ttt(1)ABdB1A1B1A12ttTTTtTT(2)BtB1B2BTTT-104-AA1A2dBA1B22tTTTTTT(3)TT1T1dT111F11dTTT(4)23L1L1(123)COMTRADE[12]Fig.3Topologicalgraphofafractiongrid(1) (2) (3) 3L1L2L3L4L1L2L212L3L121t12L413t1323t23=t12t132.2.14mTmmambmc[]UUUUTmmambmc[]IIIINTnnanbnc[]UUUUTnnanbnc[]IIIIT-105-mInImUZ2Y2YFig.4LumpedPImodeofatransmissionlineY4jjmnnm(e)e2UIYUI(5)(5)YjTjTmnnm(e)(e)2YUUII(6)mnmfmfUInfnfUI(5)jjmfnfnfmf(e)e2YUUII(7)(7)jTmn(e)UUjTjmnmfnfjTjmnnfmf(e)(e)2(e)(e)YUUUUUUII(8)(6)(8)jTjnmmfnfjTjmnnfmf(e)(e)(e)(e)IIUUUUII(9)jeδje1mn2πtff2.2.2(7)(9)(5)Ya(5)janamajmanae2(e)YIIUU(10)aYajjnamamanaRe[(e)(e)]0IIUU(11)Re(11)()cossin0fabc(12)abcamaUnaUmaInaI(12)Td5(FaultNum)(FaultNum)(1) Td(2) -106-Fig.5Association&synchronizationflowchartofFRdata(1) (2) (3) (4) (2)(3)(5) 4.[J].,1997,25(4):58-59.SUNYueqin.Severalproblemsofremotetransmissionoffaultrecorderdata[J].Relay,1997,25(4):58-59.,,.[J].,2000,28(4):46-49.WANGLixin,GUODengfeng,ZHANGXiaochuan.Anetworkingsystemofmicroprocessor-basedprotectionsandfaultrecorders[J].Relay,2000,28(4):46-49.,.[J].,2003,27(12):89-91.WANGLi,SUNYunlian.Designofcommunicationonnetworkformicroprocessorbasedfaultrecorder[J].PowerSystemtechnology,2003,27(12):89-91.,,.[J].,2011,39(23):138-142.WEIHeng,ZHOUDi,WANGYi.Onlineparametermeasurementofdouble-circuittransmissionlinesbasedonfaultrecorder[J].PowerSystemProtectionandControl,2011,39(23):138-142.,,.[J].,2013,41(21):38-45.XIONGGuojiang,SHIDongyuan,ZHULin.Faultdiagnosisofpowergridsbasedonmulti-outputdecayradialbasisfunctionneuralnetwork[J].PowerSystemProtectionandControl,2013,41(21):38-45.,.[J].,2009,37(24):76-80.LIUWei,CHENHao.Anewfaultlocationalgorithmforhybridtransmissionlinebasedondistributedparameter-107-model[J].PowerSystemProtectionandControl,2009,37(24):76-80.,,,.[J].,2011,39(12):106-111.ZHANGXiaoming,XUYan,WANGYu,etal.Afaultlocationalgorithmfortwo-terminaltransmissionlinesbasedonparameterdetection[J].PowerSystemProtectionandControl,2011,39(12):106-111.,,,.[J].,2013,41(19):40-46.WANGWei,YURui,CHENYu,etal.ApplicationresearchoffaultlocationofUHVtransmissionlineprotection[J].PowerSystemProtectionandControl,2013,41(19):40-46.,,,.[J].,2008,32(3):27-30.LIUQiankuan,LIYongbin,HUANGShaofeng,etal.Singlelinefaultlocationofparalleldoubletransmissionlineonsametowerbasedontwo-terminalelectricalquantities[J].PowerSystemTechnology,2008,32(3):27-30.,,,.[J].,2005,29(18):70-74.CHENXiaolin,LUOYi,WANGWeiping,etal.Protectioncharacteristicanalysismethodbasedonrecordedfaultdataanditsimplementation[J].PowerSystemTechnology,2005,29(18):70-74.,,,.GPS[J].,1998(5):4-8.ZHAOXiaowei,LIGuiyi,JIAMingna,etal.ApplicationofGPSclockonpowersystem[J].PowerSystemCommunication,1998(5):4-8.IEEEStandardsBoardIEEEC37.111-1999commonformatfortransientdataexchange(COMTRADE)forpowersystem[S][e-mail]