基于PMU信息的快速故障分析

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1、英文摘要AbstractAccordingtotherecovedngdecision—makingandthereliabilityofpowersupplybelongingtothepowersystem，itmakesimportantsenseonidentifyingfaultcomponentscorrectlyandquickly,afterthefaultofshortcircuitOCCURSinthegrid．Theearlierartificialintelligenceapproachhasfoundawideapplic

2、ationinthisfield，suchasexpertsystem。neuralnetwork,geneticalgorithm，etc．，becauseofthelimitationofdataorigin，weonlymakeuseofactionmessages，affiliatedtoswitchandprotectionduringtheanalysis，thesemessagesCanmerelyanalyzesimplefaults，butinrelationtosomecomplicatedfaults，theyCannoton

3、lygivethevalidconclusionsbutalsoinduceagreatdealofinformationcontmningfalseactionofswitch，thusfaultanalysissoftwareinvente(1atthattimecanonlygivemuchmorefeasibilityconclusionswhenthecomplicatedfaultshappen，andevendevelopea'roneeusconclusionsinsomecases，thereforetheseapproaches

4、cannotactuallygetpracticalapplicationinthedispatchingcenter；Withfaultcathode-rayoscilloscopepopularlyappliedinthe鲥d，anothergroupofexpertsandscholarsputforwardopinions：Usingthedatacomingfromfaultcathode-rayoscilloscopetoanalyzefault，butwhenthefaultoccur,manyfaultcathode-rayosci

5、lloscopeswillstartupatthesanletime，itwillcostalongtimeiftherecordedfaultdocumentsoffaultcathode·rayoscilloscopewhichhasalreadystarteduphaveallbeen,transmittedtothedispatchingcenterforanalysis，SOitisverydifficulttoguaranteetherealtimeapplicationoffaultanalysis．Inaccordancewitht

6、heabovecircumstances，thisessayhasmainlydonesomeworkasfollows：≯Atfirst,utilizingtherealtimedataofPMU，inordertodevelopthefaultmonitoringMgofithm,throughthisalgorithm,itwillonlysummonrecordedfaultdocumentsrelatedwithfaultcomponentswhenthefaultoc．curs，thustheamountofrecordedfaultd

7、ocumentswaitingforsumInonswillbeeffectivelyreduced；>Basedonanalyzingthecharacteristicsofshortcircuitfault，developinga国电自动化研究院硕士学位论文algorithmwhichextractsthetimeofshortcircuitfaultbyutilizingfaultcomponentofcurre蝎thisalgorithmisprovidedwithself-adaptivefunction，theshortcircuitf

8、aultintheprocessofoscillationcallcorrectlyextractthetimeposit