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一种配电网故障区段定位及隔离方法 Title:AFaultSectionLocalizationandIsolationMethodforDistributionPowerGrids Abstract: Therapiddevelopmentofurbanizationandtheincreasingdemandforelectricityhaveledtothecontinuousexpansionofdistributionpowergrids.However,withtheincreasingcomplexityandscaleofdistributionpowergrids,faultscanoccurfrequently,affectingthenormaloperationofpowersystemsandleadingtosignificanteconomiclosses.Therefore,anefficientandaccuratefaultsectionlocalizationandisolationmethodisessentialforensuringthereliabilityandstabilityofdistributionpowergrids.Thispaperproposesacomprehensiveapproachforfaultsectionlocalizationandisolationindistributionpowergrids,whichcombinesdataanalysis,faultdetection,andintelligentdecision-makingalgorithms.Theproposedmethodaimstominimizefaultisolationtimeandimprovethereliabilityofthedistributionpowergrid. 1.Introduction 1.1Background 1.2ProblemStatement 1.3Objectives 2.FaultLocalization 2.1DataAnalysis 2.1.1DataCollection 2.1.2DataPreprocessing 2.2FaultDetectionandClassification 2.2.1FaultIdentification 2.2.2FaultClassification 2.3FaultLocalizationAlgorithm 2.3.1Distance-basedAlgorithm 2.3.2TopologyAnalysisAlgorithm 3.FaultIsolation 3.1FaultIsolationTechniques 3.1.1CircuitBreakerIsolation 3.1.2FaultedSectionDetection 3.2FaultIsolationDecision-making 3.2.1Decision-makingCriteria 3.2.2Decision-makingAlgorithms 3.3FaultIsolationStrategy 3.3.1SequentialStrategy 3.3.2ParallelStrategy 4.CaseStudy 4.1SimulationSetup 4.2AnalysisandResults 4.3Discussion 5.Conclusion 5.1Summary 5.2Contributions 5.3FutureWork References 1.Introduction 1.1Background Thedistributionpowergridplaysavitalroleindeliveringelectricityfromtransmissionnetworkstoconsumers.Inrecentyears,therapiddevelopmentofurbanizationandtheincreasingdemandforelectricityhaveledtothecontinuousexpansionofdistributionpowergrids.However,withtheincreasingcomplexityandscaleofdistributionpowergrids,faultscanoccurfrequently,leadingtopoweroutagesandsignificanteconomiclosses. 1.2ProblemStatement Whenafaultoccursinadi