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10kV配电网相间短路故障定位方法研究.docx

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10kV配电网相间短路故障定位方法研究 Title:ResearchonFaultLocationMethodsforPhase-to-PhaseShortCircuitsin10kVDistributionNetworks Abstract: Theeffectiveandefficientlocalizationoffaultsinelectricaldistributionnetworksiscrucialforensuringreliableanduninterruptedpowersupply.Thispaperinvestigatesfaultlocationmethodsforphase-to-phaseshort-circuitsin10kVdistributionnetworks.Acomprehensivereviewofexistingfaultlocalizationtechniquesisprovided,alongwithananalysisoftheirlimitationsandmerits.Additionally,thispaperproposesanovelfaultlocationapproachbasedonadvancedsignalprocessingtechniques,aimedatovercomingthelimitationsofcurrentmethods.Theproposedmethodisevaluatedthroughsimulationstudies,andtheresultsdemonstrateitsimprovedaccuracyandreliability. Keywords:faultlocation,10kVdistributionnetworks,phase-to-phaseshortcircuits,signalprocessingtechniques,simulationstudies. 1.Introduction Faultsandshortcircuitsinelectricaldistributionnetworkscancauseseveredisruptionsandoutages,leadingtofinanciallossesforutilitiesandinconvenienceforcustomers.Thetimelyandaccuratelocalizationoffaultsiscrucialfortheefficientrestorationofpowersupply.Thispaperfocusesonphase-to-phaseshortcircuitsin10kVdistributionnetworks,whicharecommonandcanbechallengingtolocatepreciselyduetothecharacteristicsofthefaultsignals. 2.ExistingFaultLocalizationMethods 2.1TimeDomainReflectometry(TDR) 2.2ImpedanceMeasurement 2.3WaveletTransform 2.4ArtificialNeuralNetworks(ANN) 2.5GeneticAlgorithms(GA) 3.LimitationsandMeritsofExistingMethods 3.1LimitationsofTimeDomainReflectometry(TDR) 3.2LimitationsofImpedanceMeasurement 3.3LimitationsofWaveletTransform 3.4LimitationsofArtificialNeuralNetworks(ANN) 3.5LimitationsofGeneticAlgorithms(GA) 3.6MeritsandLimitationsSummary 4.ProposedFaultLocationMethod 4.1IntroductiontotheProposedMethod 4.2DescriptionofSignalProcessingTechniques 4.2.1FourierTransform 4.2.2WaveletPacketTransform 4.2.3HilbertTransform 4.2.4CaseStudy:ApplicationofSignalProcessingTechniques 4.3FaultLocalizationAlgorithm 4.4EvaluationandPerform