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1、ABSTRACTABSTRACTWithhigh-voltagetransmissionlinesinthegridmoreandmoreuse,accuratefaultlocationhasbecomethepowernetworkoperation,powermanagementandexpertsandscholarspaycloseattentiontotheproblem.High-voltagetransmissionlinefaultlocationisnotonlyaccurateandtimelyhelpt
2、ofindandeliminatetransmissionlinefault,theentirepowernetworktoensurethesecurityandstability,reducethetransmissionlinefailurecausedeconomiclosses,butalsotoreducetheburdenonlinepatrolofficers,fromgridtechnologytoensuresafeandstableoperation.Thispaperpresentsanewtransm
3、issionlinefaultlocationsystem.Whenthetransmissionlinefails,accuratecollectionandrecordinghavefailedtosubstationbusmovementandzero-sequencecurrenttravelingwavesandzero-sequencevoltagewaveoccurred.Thesystemusesthetransmissionlinefaultlocationalgorithmisbasedonthefinit
4、edifferencemethodoffaultlocationmethods,simulationshowthatthealgorithmhashighaccuracyandrobustness.Inthisarticle,firstintroducedbasedonthefinitedifferencemethodoftransmissionlinefaultlocationalgorithm,thenthealgorithmusingMATLABsimulation,theanalysisalgorithmaccurac
5、yandrobustness.Finally,accordingtotheactualneedsanalysisanddesigntoachieveatransmissionlinefaultlocationsystemthatusessensordatacollectedfaultinformation,andthroughtheGPSsystemforsynchronoussampling.Thesystemhashighaccuracyandeasyoperationabit,inthepowersystemhaswid
6、eapplicationprospect.Keywords:FaultLocation,FiniteDifferenceMethod,SimulationSystemII万方数据目录目录第一章引言.......................................................................................................................11.1研究的背景和意义.....................................
7、........................................................11.1.1研究背景..................................................................................................11.1.2研究意义............................................................................................
8、......21.2国内外研究现状................................................................................................41.3本课题的主要研究内容...........
