配網自動化系統小電流接地故障定位方法一、本文概述Overviewofthisarticle隨著電力系統的快速發展，配網自動化系統的建設與應用日益普及，對于提高電力系統的供電可靠性和運行效率具有重要意義。然而，在實際運行過程中，配網系統常常面臨小電流接地故障的挑戰，這不僅影響了電力系統的正常運行，還可能對設備和人員安全構成威脅。因此，研究并開發有效的小電流接地故障定位方法成為了配網自動化系統領域的重要課題。Withtherapiddevelopmentofthepowersystem,theconstructionandapplicationofdistributionnetworkautomationsystemsarebecomingincreasinglypopular,whichisofgreatsignificanceforimprovingthepowersupplyreliabilityandoperationalefficiencyofthepowersystem.However,inactualoperation,thedistributionnetworksystemoftenfacesthechallengeofsmallcurrentgroundingfaults,whichnotonlyaffectsthenormaloperationofthepowersystem,butalsomayposeathreattothesafetyofequipmentandpersonnel.Therefore,researchinganddevelopingeffectivemethodsforlocatingsmallcurrentgroundingfaultshasbecomeanimportanttopicinthefieldofdistributionnetworkautomationsystems.本文旨在探討配網自動化系統中小電流接地故障定位方法的研究現狀與發展趨勢。文章將簡要介紹配網自動化系統的基本結構和功能，以及小電流接地故障的特點和危害。隨后，將重點分析現有的小電流接地故障定位方法，包括基于信號注入法、阻抗法、行波法等不同原理的方法，并評價其優缺點和適用范圍。在此基礎上，文章將探討未來小電流接地故障定位方法的研究方向和發展趨勢，如基于和大數據技術的智能定位方法、多源信息融合的定位方法等。文章將總結現有方法的不足和未來研究的挑戰，為配網自動化系統中小電流接地故障定位技術的發展提供參考和借鑒。Thisarticleaimstoexploretheresearchstatusanddevelopmenttrendsofsmallandmediumcurrentgroundingfaultlocationmethodsindistributionnetworkautomationsystems.Thearticlewillbrieflyintroducethebasicstructureandfunctionsofthedistributionnetworkautomationsystem,aswellasthecharacteristicsandhazardsofsmallcurrentgroundingfaults.Subsequently,thefocuswillbeonanalyzingexistingmethodsforlocatingsmallcurrentgroundingfaults,includingmethodsbasedondifferentprinciplessuchassignalinjection,impedance,andtravelingwave,andevaluatingtheiradvantages,disadvantages,andapplicability.Onthisbasis,thearticlewillexploretheresearchdirectionsanddevelopmenttrendsoffuturesmallcurrentgroundingfaultlocalizationmethods,suchasintelligentlocalizationmethodsbasedonbigdatatechnologyandmulti-sourceinformationfusionlocalizationmethods.Thearticlewillsummarizetheshortcomingsofexistingmethodsandthechallengesoffutureresearch,providingreferenceandinspirationforthedevelopmentofsmallandmediumcurrentgroundingfaultlocationtechnologyindistributionnetworkautomationsystems.通過本文的闡述，讀者可以全面了解配網自動化系統中小電流接地故障定位方法的相關知識和技術進展，為相關領域的研究和應用提供有益的指導和借鑒。Throughtheexplanationinthisarticle,readerscancomprehensivelyunderstandtherelevantknowledgeandtechnologicalprogressofsmallandmediumcurrentgroundingfaultlocationmethodsindistributionnetworkautomationsystems,providingusefulguidanceandreferenceforresearchandapplicationinrelatedfields.二、小電流接地故障特征分析Analysisofcharacteristicsoflowcurrentgroundingfaults配網自動化系統中，小電流接地故障是一種常見的故障類型。這類故障發生時，由于故障電流相對較小，通常不會立即導致設備損壞或系統停電，但長期存在的小電流接地故障可能會引發更嚴重的設備故障和系統不穩定。因此，對小電流接地故障的特征進行深入分析，對于實現準確的故障定位至關重要。Smallcurrentgroundingfaultisacommontypeoffaultindistributionnetworkautomationsystems.Whensuchfaultsoccur,duetotherelativelysmallfaultcurrent,itusuallydoesnotimmediatelycauseequipmentdamageorsystempoweroutage.However,long-termlowcurrentgroundingfaultsmaycausemoreseriousequipmentfailuresandsysteminstability.Therefore,in-depthanalysisofthecharacteristicsofsmallcurrentgroundingfaultsiscrucialforachievingaccuratefaultlocalization.故障電流小：由于接地電阻的存在，故障電流通常遠小于正常運行時的負荷電流，這使得故障檢測變得困難。Lowfaultcurrent:Duetothepresenceofgroundingresistance,thefaultcurrentisusuallymuchsmallerthantheloadcurrentduringnormaloperation,makingfaultdetectiondifficult.故障信號微弱：由于故障電流小，導致故障產生的電壓和電流信號變化微弱，給故障檢測帶來了挑戰。Weakfaultsignal:Duetothesmallfaultcurrent,thevoltageandcurrentsignalsgeneratedbythefaultchangeweakly,posingachallengetofaultdetection.故障特征復雜：小電流接地故障可能涉及到單相接地、相間短路等多種類型，不同類型的故障具有不同的特征，增加了故障分析的復雜性。Thefaultcharacteristicsarecomplex:Smallcurrentgroundingfaultsmayinvolvevarioustypessuchassingle-phasegroundingandinterphaseshortcircuit.Differenttypesoffaultshavedifferentcharacteristics,whichincreasesthecomplexityoffaultanalysis.故障定位困難：由于故障信號微弱且特征復雜，傳統的故障定位方法往往難以準確識別故障點，導致故障處理效率低下。Difficultyinfaultlocalization:Duetoweakfaultsignalsandcomplexfeatures,traditionalfaultlocalizationmethodsoftenstruggletoaccuratelyidentifyfaultpoints,resultinginlowefficiencyinfaulthandling.針對以上特征，配網自動化系統中需要采用更為先進的故障定位方法，以提高故障處理的準確性和效率。例如，可以通過引入先進的信號處理技術和智能算法，對故障信號進行提取和分析，以實現更快速、準確的故障定位。還需要加強系統的維護和監測，及時發現并處理潛在的小電流接地故障，確保配網自動化系統的穩定運行。Inresponsetotheabovecharacteristics,moreadvancedfaultlocalizationmethodsareneededinthedistributionnetworkautomationsystemtoimprovetheaccuracyandefficiencyoffaulthandling.Forexample,advancedsignalprocessingtechniquesandintelligentalgorithmscanbeintroducedtoextractandanalyzefaultsignals,inordertoachievefasterandmoreaccuratefaultlocalization.Itisalsonecessarytostrengthenthemaintenanceandmonitoringofthesystem,timelydetectandhandlepotentialsmallcurrentgroundingfaults,andensurethestableoperationofthedistributionnetworkautomationsystem.三、配網自動化系統故障定位技術FaultLocationTechnologyforDistributionNetworkAutomationSystem配網自動化系統對于小電流接地故障的定位，主要依賴于先進的故障檢測技術和算法。這些技術可以迅速、準確地找到故障點，從而縮短停電時間，提高供電可靠性。Thepositioningofsmallcurrentgroundingfaultsindistributionnetworkautomationsystemsmainlyreliesonadvancedfaultdetectiontechnologyandalgorithms.Thesetechnologiescanquicklyandaccuratelyidentifythefaultpoint,therebyreducingpoweroutagetimeandimprovingpowersupplyreliability.故障指示器法是一種基于電流突變原理的故障定位方法。當配網發生小電流接地故障時，故障指示器可以檢測到電流的突變，從而判斷出故障的發生。該方法不需要對配網的運行方式進行改變，安裝簡單，適用于各種類型的配網。Faultindicatormethodisafaultlocationmethodbasedontheprincipleofcurrentmutation.Whenasmallcurrentgroundingfaultoccursinthedistributionnetwork,thefaultindicatorcandetectasuddenchangeincurrentandthusdeterminetheoccurrenceofthefault.Thismethoddoesnotrequireanychangestotheoperationmodeofthedistributionnetwork,iseasytoinstall,andissuitableforvarioustypesofdistributionnetworks.阻抗法是一種基于故障回路阻抗測量的故障定位方法。當配網發生小電流接地故障時，通過測量故障回路的阻抗，可以計算出故障點的位置。該方法定位準確，但需要配網的運行方式配合，且受線路參數和故障類型的影響較大。Impedancemethodisafaultlocationmethodbasedonimpedancemeasurementoffaultcircuits.Whenasmallcurrentgroundingfaultoccursinthedistributionnetwork,thelocationofthefaultpointcanbecalculatedbymeasuringtheimpedanceofthefaultcircuit.Thismethodisaccurateinpositioning,butrequirescoordinationwiththeoperationmodeofthedistributionnetwork,andisgreatlyaffectedbylineparametersandfaulttypes.行波法是一種基于故障行波傳播的故障定位方法。當配網發生小電流接地故障時，故障產生的行波會在配網中傳播，通過測量行波的傳播時間和速度，可以計算出故障點的位置。該方法定位速度快，精度高，但受配網結構和故障類型的影響較大。Travelingwavemethodisafaultlocalizationmethodbasedonfaulttravelingwavepropagation.Whenasmallcurrentgroundingfaultoccursinthedistributionnetwork,thetravelingwavegeneratedbythefaultwillpropagateinthedistributionnetwork.Bymeasuringthepropagationtimeandspeedofthetravelingwave,thelocationofthefaultpointcanbecalculated.Thismethodhasfastpositioningspeedandhighaccuracy,butisgreatlyaffectedbythedistributionnetworkstructureandfaulttypes.在實際應用中，可以根據配網的實際情況和故障類型選擇合適的故障定位技術。為了提高故障定位的準確性和可靠性，還可以采用多種故障定位技術相結合的方式，相互驗證和補充。Inpracticalapplications,appropriatefaultlocalizationtechniquescanbeselectedbasedontheactualsituationandfaulttypesofthedistributionnetwork.Inordertoimprovetheaccuracyandreliabilityoffaultlocalization,acombinationofmultiplefaultlocalizationtechniquescanbeusedtoverifyandsupplementeachother.隨著配網自動化系統的不斷發展和完善，相信會有更多先進、高效的故障定位技術被應用到配網中，為配網的安全、穩定運行提供有力保障。Withthecontinuousdevelopmentandimprovementofdistributionnetworkautomationsystems,itisbelievedthatmoreadvancedandefficientfaultlocationtechnologieswillbeappliedtothedistributionnetwork,providingstrongguaranteesforthesafeandstableoperationofthedistributionnetwork.四、小電流接地故障定位方法的研究Researchonthemethodoflocatingsmallcurrentgroundingfaults隨著電力系統的快速發展，配網自動化系統的運行穩定性和安全性受到了廣泛關注。其中，小電流接地故障是配網中常見的故障類型之一，其準確定位對于提高系統的供電可靠性和運行效率具有重要意義。因此，研究小電流接地故障定位方法成為了當前配網自動化領域的重要課題。Withtherapiddevelopmentofthepowersystem,theoperationalstabilityandsafetyofdistributionnetworkautomationsystemshavereceivedwidespreadattention.Amongthem,smallcurrentgroundingfaultisoneofthecommontypesoffaultsinthedistributionnetwork,anditsaccuratepositioningisofgreatsignificanceforimprovingthepowersupplyreliabilityandoperationalefficiencyofthesystem.Therefore,researchingmethodsforlocatingsmallcurrentgroundingfaultshasbecomeanimportanttopicinthecurrentfieldofdistributionnetworkautomation.目前，小電流接地故障定位方法主要分為兩類：基于傳統保護的方法和基于智能算法的方法。Atpresent,themethodsforlocatingsmallcurrentgroundingfaultsaremainlydividedintotwocategories:methodsbasedontraditionalprotectionandmethodsbasedonintelligentalgorithms.基于傳統保護的方法主要利用電流、電壓等電氣量的變化來檢測故障，并通過保護裝置的動作來實現故障隔離。這類方法簡單可靠，但受到保護裝置性能、整定參數等因素的影響，定位精度和速度有時難以滿足要求。Thetraditionalprotectionmethodmainlyuseschangesinelectricalquantitiessuchascurrentandvoltagetodetectfaults,andachievesfaultisolationthroughtheactionofprotectiondevices.Thistypeofmethodissimpleandreliable,butsometimesitisdifficulttomeettherequirementsforpositioningaccuracyandspeedduetofactorssuchastheperformanceofprotectivedevicesandsettingparameters.基于智能算法的方法則利用現代信號處理技術、人工智能技術等手段對故障信號進行分析和處理，以實現對故障的精確定位。例如，基于小波變換、傅里葉變換等信號處理方法可以提取故障信號中的特征信息，進而實現故障定位；基于神經網絡、支持向量機等人工智能方法可以建立故障定位模型，通過對歷史數據的訓練和學習來提高定位精度和速度。Themethodbasedonintelligentalgorithmsutilizesmodernsignalprocessingtechnology,artificialintelligencetechnology,andothermeanstoanalyzeandprocessfaultsignals,inordertoachieveaccuratefaultlocalization.Forexample,signalprocessingmethodssuchaswavelettransformandFouriertransformcanextractfeatureinformationfromfaultsignals,therebyachievingfaultlocalization;Artificialintelligencemethodssuchasneuralnetworksandsupportvectormachinescanbeusedtoestablishfaultlocalizationmodels,whichcanimprovelocalizationaccuracyandspeedbytrainingandlearningfromhistoricaldata.在實際應用中，可以根據配網的具體情況和需求選擇合適的故障定位方法。為了提高故障定位的準確性和可靠性，還可以將多種方法相結合，形成綜合定位方案。例如，可以先利用傳統保護方法快速隔離故障區域，再利用智能算法對故障進行精確定位。Inpracticalapplications,appropriatefaultlocationmethodscanbeselectedbasedonthespecificsituationandrequirementsofthedistributionnetwork.Inordertoimprovetheaccuracyandreliabilityoffaultlocalization,multiplemethodscanbecombinedtoformacomprehensivelocalizationscheme.Forexample,traditionalprotectionmethodscanbeusedtoquicklyisolatethefaultarea,andthenintelligentalgorithmscanbeusedtoaccuratelylocatethefault.小電流接地故障定位方法的研究對于提高配網自動化系統的運行穩定性和安全性具有重要意義。未來，隨著技術的不斷發展和創新，相信會有更加先進、高效的故障定位方法問世，為配網的可靠運行提供有力保障。Thestudyofsmallcurrentgroundingfaultlocationmethodsisofgreatsignificanceforimprovingtheoperationalstabilityandsafetyofdistributionnetworkautomationsystems.Inthefuture,withthecontinuousdevelopmentandinnovationoftechnology,itisbelievedthatmoreadvancedandefficientfaultlocationmethodswillemerge,providingstrongguaranteesforthereliableoperationofthedistributionnetwork.五、小電流接地故障定位方法的優化與改進OptimizationandImprovementofSmallCurrentGroundingFaultLocationMethod隨著電力系統的發展，配網自動化對于提高供電可靠性和效率至關重要。其中，小電流接地故障定位方法作為配網自動化的重要組成部分，其準確性和快速性對于保障電力系統的穩定運行具有重要意義。然而，現有的小電流接地故障定位方法在實際應用中仍存在一些問題和挑戰，需要進一步的優化和改進。Withthedevelopmentofthepowersystem,distributionnetworkautomationiscrucialforimprovingpowersupplyreliabilityandefficiency.Amongthem,thesmallcurrentgroundingfaultlocationmethodisanimportantcomponentofdistributionnetworkautomation,anditsaccuracyandspeedareofgreatsignificanceforensuringthestableoperationofthepowersystem.However,theexistingmethodsforlocatingsmallcurrentgroundingfaultsstillhavesomeproblemsandchallengesinpracticalapplications,whichrequirefurtheroptimizationandimprovement.一方面，現有的小電流接地故障定位方法主要基于信號處理技術和模式識別技術，這些方法雖然在一定程度上能夠實現故障定位，但在復雜的電網環境下，其準確性和魯棒性仍有待提高。因此，我們需要深入研究電網的特性和故障機理，提出更加適應電網環境的小電流接地故障定位方法。Ontheonehand,existingsmallcurrentgroundingfaultlocationmethodsaremainlybasedonsignalprocessingtechnologyandpatternrecognitiontechnology.Althoughthesemethodscanachievefaultlocationtoacertainextent,theiraccuracyandrobustnessstillneedtobeimprovedincomplexpowergridenvironments.Therefore,weneedtoconductin-depthresearchonthecharacteristicsandfaultmechanismsofthepowergrid,andproposeamoresuitablemethodforlocatingsmallcurrentgroundingfaultsinthepowergridenvironment.另一方面，隨著人工智能和機器學習技術的發展，我們可以考慮將這些先進技術引入到小電流接地故障定位方法中，以提高其智能化水平。例如，可以利用深度學習算法對電網的運行數據進行學習和訓練，從而實現對故障模式的自動識別和分類。還可以利用大數據技術對電網的運行數據進行挖掘和分析，以發現電網的潛在問題和故障趨勢，從而提前預警和預防故障的發生。Ontheotherhand,withthedevelopmentofartificialintelligenceandmachinelearningtechnology,wecanconsiderintroducingtheseadvancedtechnologiesintosmallcurrentgroundingfaultlocationmethodstoimprovetheirintelligencelevel.Forexample,deeplearningalgorithmscanbeusedtolearnandtraintheoperationaldataofthepowergrid,therebyachievingautomaticrecognitionandclassificationoffaultmodes.Bigdatatechnologycanalsobeusedtomineandanalyzetheoperationaldataofthepowergrid,inordertodiscoverpotentialproblemsandfaulttrendsinthepowergrid,andthusprovideearlywarningandpreventionoffaults.除了技術層面的優化和改進外，我們還需要注重實際應用中的需求和問題。例如，在配電網中，由于線路復雜、設備眾多，故障定位的難度較大。因此，我們需要結合配電網的實際情況，提出更加實用、便捷的小電流接地故障定位方法，以滿足現場工作人員的需求。Inadditiontotechnicaloptimizationandimprovement,wealsoneedtopayattentiontotheneedsandproblemsinpracticalapplications.Forexample,inthedistributionnetwork,duetothecomplexityofthelinesandthelargenumberofequipment,faultlocalizationisdifficult.Therefore,weneedtoproposeamorepracticalandconvenientmethodforlocatingsmallcurrentgroundingfaultsbasedontheactualsituationofthedistributionnetwork,inordertomeettheneedsofon-siteworkers.小電流接地故障定位方法的優化與改進是配網自動化領域的重要研究方向。未來，我們需要深入研究電網的特性和故障機理，結合和機器學習等先進技術，提出更加準確、快速、智能的故障定位方法，為電力系統的穩定運行提供有力保障。我們還需要注重實際應用中的需求和問題，不斷提高故障定位方法的實用性和便捷性，以更好地服務于電力系統的運行和維護。Theoptimizationandimprovementofsmallcurrentgroundingfaultlocationmethodsisanimportantresearchdirectioninthefieldofdistributionnetworkautomation.Inthefuture,weneedtoconductin-depthresearchonthecharacteristicsandfaultmechanismsofthepowergrid,combinedwithadvancedtechnologiessuchasmachinelearning,toproposemoreaccurate,fast,andintelligentfaultlocationmethods,providingstrongguaranteesforthestableoperationofthepowersystem.Wealsoneedtopayattentiontotheneedsandproblemsinpracticalapplications,continuouslyimprovethepracticalityandconvenienceoffaultlocationmethods,inordertobetterservetheoperationandmaintenanceofthepowersystem.六、實際應用案例分析Analysisofpracticalapplicationcases在實際應用中，配網自動化系統小電流接地故障定位方法的應用案例眾多，以下選取幾個典型案例進行詳細分析。Inpracticalapplications,therearemanyapplicationcasesofsmallcurrentgroundingfaultlocationmethodsindistributionnetworkautomationsystems.Belowareseveraltypicalcasesselectedfordetailedanalysis.案例一：某城市配電網在運行過程中出現了小電流接地故障，導致部分區域停電。通過應用小電流接地故障定位方法，首先通過監測和分析系統，確定了故障的大致區域。隨后，利用注入法向該區域注入特定頻率的信號，并通過接收設備接收返回的信號。通過分析返回信號的強度和相位，準確地定位了故障點。整個定位過程僅用時分鐘，極大地提高了故障處理的效率，減少了停電時間。Case1:Asmallcurrentgroundingfaultoccurredintheoperationofadistributionnetworkinacertaincity,resultinginpoweroutagesinsomeareas.Byapplyingthesmallcurrentgroundingfaultlocationmethod,theapproximateareaofthefaultwasfirstdeterminedthroughmonitoringandanalysisofthesystem.Subsequently,aspecificfrequencysignalisinjectedintotheregionusingtheinjectionmethod,andthereturnedsignalisreceivedbythereceivingdevice.Byanalyzingthestrengthandphaseofthereturnedsignal,thefaultpointwasaccuratelylocated.Theentirepositioningprocessonlytakesafewminutes,greatlyimprovingtheefficiencyoffaulthandlingandreducingpoweroutagetime.案例二：某地區配電網由于雷擊導致小電流接地故障。由于故障點較為隱蔽，傳統的人工巡檢方法難以快速定位。采用配網自動化系統小電流接地故障定位方法后，通過監測和分析系統，迅速鎖定了故障所在的線路段。隨后，利用定位裝置進行精確測量，成功找到了故障點。整個定位過程僅用時分鐘，為故障的快速修復提供了有力支持。Case2:Asmallcurrentgroundingfaultoccurredinadistributionnetworkinacertainareaduetolightningstrikes.Duetotheconcealmentofthefaultpoint,traditionalmanualinspectionmethodsaredifficulttoquicklylocate.Afteradoptingthesmallcurrentgroundingfaultlocationmethodofthedistributionnetworkautomationsystem,themonitoringandanalysissystemquicklyidentifiedthelinesectionwherethefaultwaslocated.Subsequently,precisemeasurementsweremadeusingapositioningdevice,andthefaultpointwassuccessfullyidentified.Theentirepositioningprocessonlytakesafewminutes,providingstrongsupportforrapidrepairoffaults.案例三：某工業園區配電網因設備老化導致小電流接地故障頻發。為了提高故障處理效率，減少停電損失，該園區引入了配網自動化系統小電流接地故障定位方法。通過實時監測和分析系統，及時發現并定位了多個故障點。利用定位裝置進行精確測量，為維修人員提供了準確的故障位置信息。經過及時處理，故障得到了迅速修復，保障了園區的正常供電。Case3:Thedistributionnetworkofacertainindustrialparkfrequentlyexperiencessmallcurrentgroundingfaultsduetoequipmentaging.Inordertoimprovetheefficiencyoffaulthandlingandreducepoweroutagelosses,theparkhasintroducedamethodforlocatingsmallcurrentgroundingfaultsinthedistributionnetworkautomationsystem.Throughreal-timemonitoringandanalysissystems,multiplefaultpointswereidentifiedandlocatedinatimelymanner.Theuseofpositioningdevicesforprecisemeasurementprovidesaccuratefaultlocationinformationformaintenancepersonnel.Aftertimelyhandling,themalfunctionwasquicklyrepaired,ensuringthenormalpowersupplyofthepark.以上案例表明，配網自動化系統小電流接地故障定位方法在實際應用中具有顯著的優勢和效果。通過實時監測、分析和定位，能夠快速準確地找到故障點，提高故障處理效率，減少停電時間，為保障配電網的安全穩定運行提供了有力支持。該方法還具有廣泛的應用前景，可推廣應用于各類配電網中，提高整個電力系統的供電可靠性和穩定性。Theabovecasesindicatethatthemethodforlocatingsmallcurrentgroundingfaultsindistributionnetworkautomationsystemshassignificantadvantagesandeffectsinpracticalapplications.Throughreal-timemonitoring,analysis,andpositioning,itispossibletoquicklyandaccuratelyidentifythefaultpoint,improvefaulthandlingefficiency,reducepoweroutagetime,andprovidestrongsupportforensuringthesafeandstableoperationofthedistributionnetwork.Thismethodalsohasbroadapplicationprospectsandcanbewidelyappliedinvariousdistributionnetworkstoimprovethereliabilityandstabilityoftheentirepowersystem.七、結論與展望ConclusionandOutlook隨著電力系統的快速發展，配網自動化系統的建設與應用已成為保障電力供應穩定、提高供電質量的重要手段。小電流接地故障作為配網系統中常見的故障類型之一，其快速準確的定位對于提高配網運行的安全性和可靠性具有重要意義。本文詳細分析了配網自動化系統在小電流接地故障定位方面的技術方法，旨在為相關研究和實際應用提供參考。Withtherapiddevelopmentofthepowersystem,theconstructionandapplicationofdistributionnetworkautomationsystemshavebecomeanimportantmeanstoensurestablepowersupplyandimprovepowersupplyquality.Smallcurrentgroundingfaultisoneofthecommontypesoffaultsindistributionnetworksystems,anditsfastandaccuratepositioningisofgreatsignificanceforimprovingthesafetyandreliabilityofdistributionnetworkoperation.Thisarticleprovidesadetailedanalysisofthetechnicalmethodsofdistributionnetworkautomationsystemsinlocatingsmallcurrentgroundingfaults,aimingtoprovidereferenceforrelatedresearchandpracticalapplications.在結論部分，本文總結了配網自動化系統在小電流接地故障定位方面的主要研究成果。通過綜合應用故障錄波、暫態信號分析、智能算法等多種技術手段，配網自動化系統能夠實現小電流接地故障的快速、準確定位。這些技術手段的應用，不僅提高了故障定位的精度和速度，還有效降低了故障對配網系統的影響，提高了供電的可靠性和穩定性。Intheconclusionsection,thisarticlesummarizesthemainresearchachievementsofthedistributionnetworkautomationsysteminthelocalizationofsmallcurrentgroundingfaults.Bycomprehensivelyapplyingvarioustechnicalmeanssuchasfaultrecording,transientsignalanalysis,andintelligentalgorithms,thedistributionnetworkautomationsystemcanachievefastandaccuratepositioningofsmallcurrentgroundingfaults.Theapplicationofthesetechnologicalmeansnotonlyimprovestheaccuracyandspeedoffaultlocalization,butalsoeffectivelyreducestheimpactoffaultsonthedistributionnetworksystem,andimprovesthereliabilityandstabilityofpowersupply.同時，本文也指出了當前配網自動化系統在小電流接地故障定位方面存在的問題和挑戰。例如，故障信號的微弱性、干擾因素的復雜性以及設備性能的局限性等因素，都可能影響故障定位的準確性。因此，未來研究應進一步關注如何優化故障定位算法、提高信號處理能力、完善設備性能等方面的問題，以不斷提升配