配网自动化系统小电流接地故障定位方法

配网自动化系统小电流接地故障定位方法一、本文概述Overviewofthisarticle随着电力系统的快速发展，配网自动化系统的建设与应用日益普及，对于提高电力系统的供电可靠性和运行效率具有重要意义。然而，在实际运行过程中，配网系统常常面临小电流接地故障的挑战，这不仅影响了电力系统的正常运行，还可能对设备和人员安全构成威胁。因此，研究并开发有效的小电流接地故障定位方法成为了配网自动化系统领域的重要课题。Withtherapiddevelopmentofthepowersystem,theconstructionandapplicationofdistributionnetworkautomationsystemsarebecomingincreasinglypopular,whichisofgreatsignificanceforimprovingthepowersupplyreliabilityandoperationalefficiencyofthepowersystem.However,inactualoperation,thedistributionnetworksystemoftenfacesthechallengeofsmallcurrentgroundingfaults,whichnotonlyaffectsthenormaloperationofthepowersystem,butalsomayposeathreattothesafetyofequipmentandpersonnel.Therefore,researchinganddevelopingeffectivemethodsforlocatingsmallcurrentgroundingfaultshasbecomeanimportanttopicinthefieldofdistributionnetworkautomationsystems.本文旨在探讨配网自动化系统中小电流接地故障定位方法的研究现状与发展趋势。文章将简要介绍配网自动化系统的基本结构和功能，以及小电流接地故障的特点和危害。随后，将重点分析现有的小电流接地故障定位方法，包括基于信号注入法、阻抗法、行波法等不同原理的方法，并评价其优缺点和适用范围。在此基础上，文章将探讨未来小电流接地故障定位方法的研究方向和发展趋势，如基于和大数据技术的智能定位方法、多源信息融合的定位方法等。文章将总结现有方法的不足和未来研究的挑战，为配网自动化系统中小电流接地故障定位技术的发展提供参考和借鉴。Thisarticleaimstoexploretheresearchstatusanddevelopmenttrendsofsmallandmediumcurrentgroundingfaultlocationmethodsindistributionnetworkautomationsystems.Thearticlewillbrieflyintroducethebasicstructureandfunctionsofthedistributionnetworkautomationsystem,aswellasthecharacteristicsandhazardsofsmallcurrentgroundingfaults.Subsequently,thefocuswillbeonanalyzingexistingmethodsforlocatingsmallcurrentgroundingfaults,includingmethodsbasedondifferentprinciplessuchassignalinjection,impedance,andtravelingwave,andevaluatingtheiradvantages,disadvantages,andapplicability.Onthisbasis,thearticlewillexploretheresearchdirectionsanddevelopmenttrendsoffuturesmallcurrentgroundingfaultlocalizationmethods,suchasintelligentlocalizationmethodsbasedonbigdatatechnologyandmulti-sourceinformationfusionlocalizationmethods.Thearticlewillsummarizetheshortcomingsofexistingmethodsandthechallengesoffutureresearch,providingreferenceandinspirationforthedevelopmentofsmallandmediumcurrentgroundingfaultlocationtechnologyindistributionnetworkautomationsystems.通过本文的阐述，读者可以全面了解配网自动化系统中小电流接地故障定位方法的相关知识和技术进展，为相关领域的研究和应用提供有益的指导和借鉴。Throughtheexplanationinthisarticle,readerscancomprehensivelyunderstandtherelevantknowledgeandtechnologicalprogressofsmallandmediumcurrentgroundingfaultlocationmethodsindistributionnetworkautomationsystems,providingusefulguidanceandreferenceforresearchandapplicationinrelatedfields.二、小电流接地故障特征分析Analysisofcharacteristicsoflowcurrentgroundingfaults配网自动化系统中，小电流接地故障是一种常见的故障类型。这类故障发生时，由于故障电流相对较小，通常不会立即导致设备损坏或系统停电，但长期存在的小电流接地故障可能会引发更严重的设备故障和系统不稳定。因此，对小电流接地故障的特征进行深入分析，对于实现准确的故障定位至关重要。Smallcurrentgroundingfaultisacommontypeoffaultindistributionnetworkautomationsystems.Whensuchfaultsoccur,duetotherelativelysmallfaultcurrent,itusuallydoesnotimmediatelycauseequipmentdamageorsystempoweroutage.However,long-termlowcurrentgroundingfaultsmaycausemoreseriousequipmentfailuresandsysteminstability.Therefore,in-depthanalysisofthecharacteristicsofsmallcurrentgroundingfaultsiscrucialforachievingaccuratefaultlocalization.故障电流小：由于接地电阻的存在，故障电流通常远小于正常运行时的负荷电流，这使得故障检测变得困难。Lowfaultcurrent:Duetothepresenceofgroundingresistance,thefaultcurrentisusuallymuchsmallerthantheloadcurrentduringnormaloperation,makingfaultdetectiondifficult.故障信号微弱：由于故障电流小，导致故障产生的电压和电流信号变化微弱，给故障检测带来了挑战。Weakfaultsignal:Duetothesmallfaultcurrent,thevoltageandcurrentsignalsgeneratedbythefaultchangeweakly,posingachallengetofaultdetection.故障特征复杂：小电流接地故障可能涉及到单相接地、相间短路等多种类型，不同类型的故障具有不同的特征，增加了故障分析的复杂性。Thefaultcharacteristicsarecomplex:Smallcurrentgroundingfaultsmayinvolvevarioustypessuchassingle-phasegroundingandinterphaseshortcircuit.Differenttypesoffaultshavedifferentcharacteristics,whichincreasesthecomplexityoffaultanalysis.故障定位困难：由于故障信号微弱且特征复杂，传统的故障定位方法往往难以准确识别故障点，导致故障处理效率低下。Difficultyinfaultlocalization:Duetoweakfaultsignalsandcomplexfeatures,traditionalfaultlocalizationmethodsoftenstruggletoaccuratelyidentifyfaultpoints,resultinginlowefficiencyinfaulthandling.针对以上特征，配网自动化系统中需要采用更为先进的故障定位方法，以提高故障处理的准确性和效率。例如，可以通过引入先进的信号处理技术和智能算法，对故障信号进行提取和分析，以实现更快速、准确的故障定位。还需要加强系统的维护和监测，及时发现并处理潜在的小电流接地故障，确保配网自动化系统的稳定运行。Inresponsetotheabovecharacteristics,moreadvancedfaultlocalizationmethodsareneededinthedistributionnetworkautomationsystemtoimprovetheaccuracyandefficiencyoffaulthandling.Forexample,advancedsignalprocessingtechniquesandintelligentalgorithmscanbeintroducedtoextractandanalyzefaultsignals,inordertoachievefasterandmoreaccuratefaultlocalization.Itisalsonecessarytostrengthenthemaintenanceandmonitoringofthesystem,timelydetectandhandlepotentialsmallcurrentgroundingfaults,andensurethestableoperationofthedistributionnetworkautomationsystem.三、配网自动化系统故障定位技术FaultLocationTechnologyforDistributionNetworkAutomationSystem配网自动化系统对于小电流接地故障的定位，主要依赖于先进的故障检测技术和算法。这些技术可以迅速、准确地找到故障点，从而缩短停电时间，提高供电可靠性。Thepositioningofsmallcurrentgroundingfaultsindistributionnetworkautomationsystemsmainlyreliesonadvancedfaultdetectiontechnologyandalgorithms.Thesetechnologiescanquicklyandaccuratelyidentifythefaultpoint,therebyreducingpoweroutagetimeandimprovingpowersupplyreliability.故障指示器法是一种基于电流突变原理的故障定位方法。当配网发生小电流接地故障时，故障指示器可以检测到电流的突变，从而判断出故障的发生。该方法不需要对配网的运行方式进行改变，安装简单，适用于各种类型的配网。Faultindicatormethodisafaultlocationmethodbasedontheprincipleofcurrentmutation.Whenasmallcurrentgroundingfaultoccursinthedistributionnetwork,thefaultindicatorcandetectasuddenchangeincurrentandthusdeterminetheoccurrenceofthefault.Thismethoddoesnotrequireanychangestotheoperationmodeofthedistributionnetwork,iseasytoinstall,andissuitableforvarioustypesofdistributionnetworks.阻抗法是一种基于故障回路阻抗测量的故障定位方法。当配网发生小电流接地故障时，通过测量故障回路的阻抗，可以计算出故障点的位置。该方法定位准确，但需要配网的运行方式配合，且受线路参数和故障类型的影响较大。Impedancemethodisafaultlocationmethodbasedonimpedancemeasurementoffaultcircuits.Whenasmallcurrentgroundingfaultoccursinthedistributionnetwork,thelocationofthefaultpointcanbecalculatedbymeasuringtheimpedanceofthefaultcircuit.Thismethodisaccurateinpositioning,butrequirescoordinationwiththeoperationmodeofthedistributionnetwork,andisgreatlyaffectedbylineparametersandfaulttypes.行波法是一种基于故障行波传播的故障定位方法。当配网发生小电流接地故障时，故障产生的行波会在配网中传播，通过测量行波的传播时间和速度，可以计算出故障点的位置。该方法定位速度快，精度高，但受配网结构和故障类型的影响较大。Travelingwavemethodisafaultlocalizationmethodbasedonfaulttravelingwavepropagation.Whenasmallcurrentgroundingfaultoccursinthedistributionnetwork,thetravelingwavegeneratedbythefaultwillpropagateinthedistributionnetwork.Bymeasuringthepropagationtimeandspeedofthetravelingwave,thelocationofthefaultpointcanbecalculated.Thismethodhasfastpositioningspeedandhighaccuracy,butisgreatlyaffectedbythedistributionnetworkstructureandfaulttypes.在实际应用中，可以根据配网的实际情况和故障类型选择合适的故障定位技术。为了提高故障定位的准确性和可靠性，还可以采用多种故障定位技术相结合的方式，相互验证和补充。Inpracticalapplications,appropriatefaultlocalizationtechniquescanbeselectedbasedontheactualsituationandfaulttypesofthedistributionnetwork.Inordertoimprovetheaccuracyandreliabilityoffaultlocalization,acombinationofmultiplefaultlocalizationtechniquescanbeusedtoverifyandsupplementeachother.随着配网自动化系统的不断发展和完善，相信会有更多先进、高效的故障定位技术被应用到配网中，为配网的安全、稳定运行提供有力保障。Withthecontinuousdevelopmentandimprovementofdistributionnetworkautomationsystems,itisbelievedthatmoreadvancedandefficientfaultlocationtechnologieswillbeappliedtothedistributionnetwork,providingstrongguaranteesforthesafeandstableoperationofthedistributionnetwork.四、小电流接地故障定位方法的研究Researchonthemethodoflocatingsmallcurrentgroundingfaults随着电力系统的快速发展，配网自动化系统的运行稳定性和安全性受到了广泛关注。其中，小电流接地故障是配网中常见的故障类型之一，其准确定位对于提高系统的供电可靠性和运行效率具有重要意义。因此，研究小电流接地故障定位方法成为了当前配网自动化领域的重要课题。Withtherapiddevelopmentofthepowersystem,theoperationalstabilityandsafetyofdistributionnetworkautomationsystemshavereceivedwidespreadattention.Amongthem,smallcurrentgroundingfaultisoneofthecommontypesoffaultsinthedistributionnetwork,anditsaccuratepositioningisofgreatsignificanceforimprovingthepowersupplyreliabilityandoperationalefficiencyofthesystem.Therefore,researchingmethodsforlocatingsmallcurrentgroundingfaultshasbecomeanimportanttopicinthecurrentfieldofdistributionnetworkautomation.目前，小电流接地故障定位方法主要分为两类：基于传统保护的方法和基于智能算法的方法。Atpresent,themethodsforlocatingsmallcurrentgroundingfaultsaremainlydividedintotwocategories:methodsbasedontraditionalprotectionandmethodsbasedonintelligentalgorithms.基于传统保护的方法主要利用电流、电压等电气量的变化来检测故障，并通过保护装置的动作来实现故障隔离。这类方法简单可靠，但受到保护装置性能、整定参数等因素的影响，定位精度和速度有时难以满足要求。Thetraditionalprotectionmethodmainlyuseschangesinelectricalquantitiessuchascurrentandvoltagetodetectfaults,andachievesfaultisolationthroughtheactionofprotectiondevices.Thistypeofmethodissimpleandreliable,butsometimesitisdifficulttomeettherequirementsforpositioningaccuracyandspeedduetofactorssuchastheperformanceofprotectivedevicesandsettingparameters.基于智能算法的方法则利用现代信号处理技术、人工智能技术等手段对故障信号进行分析和处理，以实现对故障的精确定位。例如，基于小波变换、傅里叶变换等信号处理方法可以提取故障信号中的特征信息，进而实现故障定位；基于神经网络、支持向量机等人工智能方法可以建立故障定位模型，通过对历史数据的训练和学习来提高定位精度和速度。Themethodbasedonintelligentalgorithmsutilizesmodernsignalprocessingtechnology,artificialintelligencetechnology,andothermeanstoanalyzeandprocessfaultsignals,inordertoachieveaccuratefaultlocalization.Forexample,signalprocessingmethodssuchaswavelettransformandFouriertransformcanextractfeatureinformationfromfaultsignals,therebyachievingfaultlocalization;Artificialintelligencemethodssuchasneuralnetworksandsupportvectormachinescanbeusedtoestablishfaultlocalizationmodels,whichcanimprovelocalizationaccuracyandspeedbytrainingandlearningfromhistoricaldata.在实际应用中，可以根据配网的具体情况和需求选择合适的故障定位方法。为了提高故障定位的准确性和可靠性，还可以将多种方法相结合，形成综合定位方案。例如，可以先利用传统保护方法快速隔离故障区域，再利用智能算法对故障进行精确定位。Inpracticalapplications,appropriatefaultlocationmethodscanbeselectedbasedonthespecificsituationandrequirementsofthedistributionnetwork.Inordertoimprovetheaccuracyandreliabilityoffaultlocalization,multiplemethodscanbecombinedtoformacomprehensivelocalizationscheme.Forexample,traditionalprotectionmethodscanbeusedtoquicklyisolatethefaultarea,andthenintelligentalgorithmscanbeusedtoaccuratelylocatethefault.小电流接地故障定位方法的研究对于提高配网自动化系统的运行稳定性和安全性具有重要意义。未来，随着技术的不断发展和创新，相信会有更加先进、高效的故障定位方法问世，为配网的可靠运行提供有力保障。Thestudyofsmallcurrentgroundingfaultlocationmethodsisofgreatsignificanceforimprovingtheoperationalstabilityandsafetyofdistributionnetworkautomationsystems.Inthefuture,withthecontinuousdevelopmentandinnovationoftechnology,itisbelievedthatmoreadvancedandefficientfaultlocationmethodswillemerge,providingstrongguaranteesforthereliableoperationofthedistributionnetwork.五、小电流接地故障定位方法的优化与改进OptimizationandImprovementofSmallCurrentGroundingFaultLocationMethod随着电力系统的发展，配网自动化对于提高供电可靠性和效率至关重要。其中，小电流接地故障定位方法作为配网自动化的重要组成部分，其准确性和快速性对于保障电力系统的稳定运行具有重要意义。然而，现有的小电流接地故障定位方法在实际应用中仍存在一些问题和挑战，需要进一步的优化和改进。Withthedevelopmentofthepowersystem,distributionnetworkautomationiscrucialforimprovingpowersupplyreliabilityandefficiency.Amongthem,thesmallcurrentgroundingfaultlocationmethodisanimportantcomponentofdistributionnetworkautomation,anditsaccuracyandspeedareofgreatsignificanceforensuringthestableoperationofthepowersystem.However,theexistingmethodsforlocatingsmallcurrentgroundingfaultsstillhavesomeproblemsandchallengesinpracticalapplications,whichrequirefurtheroptimizationandimprovement.一方面，现有的小电流接地故障定位方法主要基于信号处理技术和模式识别技术，这些方法虽然在一定程度上能够实现故障定位，但在复杂的电网环境下，其准确性和鲁棒性仍有待提高。因此，我们需要深入研究电网的特性和故障机理，提出更加适应电网环境的小电流接地故障定位方法。Ontheonehand,existingsmallcurrentgroundingfaultlocationmethodsaremainlybasedonsignalprocessingtechnologyandpatternrecognitiontechnology.Althoughthesemethodscanachievefaultlocationtoacertainextent,theiraccuracyandrobustnessstillneedtobeimprovedincomplexpowergridenvironments.Therefore,weneedtoconductin-depthresearchonthecharacteristicsandfaultmechanismsofthepowergrid,andproposeamoresuitablemethodforlocatingsmallcurrentgroundingfaultsinthepowergridenvironment.另一方面，随着人工智能和机器学习技术的发展，我们可以考虑将这些先进技术引入到小电流接地故障定位方法中，以提高其智能化水平。例如，可以利用深度学习算法对电网的运行数据进行学习和训练，从而实现对故障模式的自动识别和分类。还可以利用大数据技术对电网的运行数据进行挖掘和分析，以发现电网的潜在问题和故障趋势，从而提前预警和预防故障的发生。Ontheotherhand,withthedevelopmentofartificialintelligenceandmachinelearningtechnology,wecanconsiderintroducingtheseadvancedtechnologiesintosmallcurrentgroundingfaultlocationmethodstoimprovetheirintelligencelevel.Forexample,deeplearningalgorithmscanbeusedtolearnandtraintheoperationaldataofthepowergrid,therebyachievingautomaticrecognitionandclassificationoffaultmodes.Bigdatatechnologycanalsobeusedtomineandanalyzetheoperationaldataofthepowergrid,inordertodiscoverpotentialproblemsandfaulttrendsinthepowergrid,andthusprovideearlywarningandpreventionoffaults.除了技术层面的优化和改进外，我们还需要注重实际应用中的需求和问题。例如，在配电网中，由于线路复杂、设备众多，故障定位的难度较大。因此，我们需要结合配电网的实际情况，提出更加实用、便捷的小电流接地故障定位方法，以满足现场工作人员的需求。Inadditiontotechnicaloptimizationandimprovement,wealsoneedtopayattentiontotheneedsandproblemsinpracticalapplications.Forexample,inthedistributionnetwork,duetothecomplexityofthelinesandthelargenumberofequipment,faultlocalizationisdifficult.Therefore,weneedtoproposeamorepracticalandconvenientmethodforlocatingsmallcurrentgroundingfaultsbasedontheactualsituationofthedistributionnetwork,inordertomeettheneedsofon-siteworkers.小电流接地故障定位方法的优化与改进是配网自动化领域的重要研究方向。未来，我们需要深入研究电网的特性和故障机理，结合和机器学习等先进技术，提出更加准确、快速、智能的故障定位方法，为电力系统的稳定运行提供有力保障。我们还需要注重实际应用中的需求和问题，不断提高故障定位方法的实用性和便捷性，以更好地服务于电力系统的运行和维护。Theoptimizationandimprovementofsmallcurrentgroundingfaultlocationmethodsisanimportantresearchdirectioninthefieldofdistributionnetworkautomation.Inthefuture,weneedtoconductin-depthresearchonthecharacteristicsandfaultmechanismsofthepowergrid,combinedwithadvancedtechnologiessuchasmachinelearning,toproposemoreaccurate,fast,andintelligentfaultlocationmethods,providingstrongguaranteesforthestableoperationofthepowersystem.Wealsoneedtopayattentiontotheneedsandproblemsinpracticalapplications,continuouslyimprovethepracticalityandconvenienceoffaultlocationmethods,inordertobetterservetheoperationandmaintenanceofthepowersystem.六、实际应用案例分析Analysisofpracticalapplicationcases在实际应用中，配网自动化系统小电流接地故障定位方法的应用案例众多，以下选取几个典型案例进行详细分析。Inpracticalapplications,therearemanyapplicationcasesofsmallcurrentgroundingfaultlocationmethodsindistributionnetworkautomationsystems.Belowareseveraltypicalcasesselectedfordetailedanalysis.案例一：某城市配电网在运行过程中出现了小电流接地故障，导致部分区域停电。通过应用小电流接地故障定位方法，首先通过监测和分析系统，确定了故障的大致区域。随后，利用注入法向该区域注入特定频率的信号，并通过接收设备接收返回的信号。通过分析返回信号的强度和相位，准确地定位了故障点。整个定位过程仅用时分钟，极大地提高了故障处理的效率，减少了停电时间。Case1:Asmallcurrentgroundingfaultoccurredintheoperationofadistributionnetworkinacertaincity,resultinginpoweroutagesinsomeareas.Byapplyingthesmallcurrentgroundingfaultlocationmethod,theapproximateareaofthefaultwasfirstdeterminedthroughmonitoringandanalysisofthesystem.Subsequently,aspecificfrequencysignalisinjectedintotheregionusingtheinjectionmethod,andthereturnedsignalisreceivedbythereceivingdevice.Byanalyzingthestrengthandphaseofthereturnedsignal,thefaultpointwasaccuratelylocated.Theentirepositioningprocessonlytakesafewminutes,greatlyimprovingtheefficiencyoffaulthandlingandreducingpoweroutagetime.案例二：某地区配电网由于雷击导致小电流接地故障。由于故障点较为隐蔽，传统的人工巡检方法难以快速定位。采用配网自动化系统小电流接地故障定位方法后，通过监测和分析系统，迅速锁定了故障所在的线路段。随后，利用定位装置进行精确测量，成功找到了故障点。整个定位过程仅用时分钟，为故障的快速修复提供了有力支持。Case2:Asmallcurrentgroundingfaultoccurredinadistributionnetworkinacertainareaduetolightningstrikes.Duetotheconcealmentofthefaultpoint,traditionalmanualinspectionmethodsaredifficulttoquicklylocate.Afteradoptingthesmallcurrentgroundingfaultlocationmethodofthedistributionnetworkautomationsystem,themonitoringandanalysissystemquicklyidentifiedthelinesectionwherethefaultwaslocated.Subsequently,precisemeasurementsweremadeusingapositioningdevice,andthefaultpointwassuccessfullyidentified.Theentirepositioningprocessonlytakesafewminutes,providingstrongsupportforrapidrepairoffaults.案例三：某工业园区配电网因设备老化导致小电流接地故障频发。为了提高故障处理效率，减少停电损失，该园区引入了配网自动化系统小电流接地故障定位方法。通过实时监测和分析系统，及时发现并定位了多个故障点。利用定位装置进行精确测量，为维修人员提供了准确的故障位置信息。经过及时处理，故障得到了迅速修复，保障了园区的正常供电。Case3:Thedistributionnetworkofacertainindustrialparkfrequentlyexperiencessmallcurrentgroundingfaultsduetoequipmentaging.Inordertoimprovetheefficiencyoffaulthandlingandreducepoweroutagelosses,theparkhasintroducedamethodforlocatingsmallcurrentgroundingfaultsinthedistributionnetworkautomationsystem.Throughreal-timemonitoringandanalysissystems,multiplefaultpointswereidentifiedandlocatedinatimelymanner.Theuseofpositioningdevicesforprecisemeasurementprovidesaccuratefaultlocationinformationformaintenancepersonnel.Aftertimelyhandling,themalfunctionwasquicklyrepaired,ensuringthenormalpowersupplyofthepark.以上案例表明，配网自动化系统小电流接地故障定位方法在实际应用中具有显著的优势和效果。通过实时监测、分析和定位，能够快速准确地找到故障点，提高故障处理效率，减少停电时间，为保障配电网的安全稳定运行提供了有力支持。该方法还具有广泛的应用前景，可推广应用于各类配电网中，提高整个电力系统的供电可靠性和稳定性。Theabovecasesindicatethatthemethodforlocatingsmallcurrentgroundingfaultsindistributionnetworkautomationsystemshassignificantadvantagesandeffectsinpracticalapplications.Throughreal-timemonitoring,analysis,andpositioning,itispossibletoquicklyandaccuratelyidentifythefaultpoint,improvefaulthandlingefficiency,reducepoweroutagetime,andprovidestrongsupportforensuringthesafeandstableoperationofthedistributionnetwork.Thismethodalsohasbroadapplicationprospectsandcanbewidelyappliedinvariousdistributionnetworkstoimprovethereliabilityandstabilityoftheentirepowersystem.七、结论与展望ConclusionandOutlook随着电力系统的快速发展，配网自动化系统的建设与应用已成为保障电力供应稳定、提高供电质量的重要手段。小电流接地故障作为配网系统中常见的故障类型之一，其快速准确的定位对于提高配网运行的安全性和可靠性具有重要意义。本文详细分析了配网自动化系统在小电流接地故障定位方面的技术方法，旨在为相关研究和实际应用提供参考。Withtherapiddevelopmentofthepowersystem,theconstructionandapplicationofdistributionnetworkautomationsystemshavebecomeanimportantmeanstoensurestablepowersupplyandimprovepowersupplyquality.Smallcurrentgroundingfaultisoneofthecommontypesoffaultsindistributionnetworksystems,anditsfastandaccuratepositioningisofgreatsignificanceforimprovingthesafetyandreliabilityofdistributionnetworkoperation.Thisarticleprovidesadetailedanalysisofthetechnicalmethodsofdistributionnetworkautomationsystemsinlocatingsmallcurrentgroundingfaults,aimingtoprovidereferenceforrelatedresearchandpracticalapplications.在结论部分，本文总结了配网自动化系统在小电流接地故障定位方面的主要研究成果。通过综合应用故障录波、暂态信号分析、智能算法等多种技术手段，配网自动化系统能够实现小电流接地故障的快速、准确定位。这些技术手段的应用，不仅提高了故障定位的精度和速度，还有效降低了故障对配网系统的影响，提高了供电的可靠性和稳定性。Intheconclusionsection,thisarticlesummarizesthemainresearchachievementsofthedistributionnetworkautomationsysteminthelocalizationofsmallcurrentgroundingfaults.Bycomprehensivelyapplyingvarioustechnicalmeanssuchasfaultrecording,transientsignalanalysis,andintelligentalgorithms,thedistributionnetworkautomationsystemcanachievefastandaccuratepositioningofsmallcurrentgroundingfaults.Theapplicationofthesetechnologicalmeansnotonlyimprovestheaccuracyandspeedoffaultlocalization,butalsoeffectivelyreducestheimpactoffaultsonthedistributionnetworksystem,andimprovesthereliabilityandstabilityofpowersupply.同时，本文也指出了当前配网自动化系统在小电流接地故障定位方面存在的问题和挑战。例如，故障信号的微弱性、干扰因素的复杂性以及设备性能的局限性等因素，都可能影响故障定位的准确性。因此，未来研究应进一步关注如何优化故障定位算法、提高信号处理能力、完善设备性能等方面的问题，以不断提升配