一种高压电网电压行波信号的提取方法-豆柴文库

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一种高压电网电压行波信号的提取方法
Title:ExtractionMethodsofVoltageSurgeSignalsinHigh-VoltagePowerGrids
Abstract:
Voltagesurgesignalsaretransientdisturbancesthatcanhaveasignificantimpactontheperformanceandstabilityofhigh-voltagepowergrids.Therefore,thedevelopmentofeffectivemethodsfortheextractionandanalysisofthesesignalsisofutmostimportance.Thispaperaimstoinvestigateanddiscussvarioustechniquesthathavebeenproposedfortheextractionofvoltagesurgesignalsinhigh-voltagepowergrids.Thepaperstartsbyintroducingtheconceptofvoltagesurgesignalsandtheirimpacts.Itthenprovidesacomprehensivereviewofexistingmethodsfortheirextraction,includingtime-domainanalysis,frequency-domainanalysis,andwaveformrecognitiontechniques.Thestrengthsandweaknessesofeachmethodarediscussed,andpotentialapplicationsinpowergridmonitoringandprotectionsystemsarehighlighted.Finally,futureresearchdirectionsandchallengesinthisfieldarealsoexplored.
Keywords:voltagesurgesignals,high-voltagepowergrids,extractionmethods,time-domainanalysis,frequency-domainanalysis,waveformrecognition.
1.Introduction
High-voltagepowergridsarecriticalinfrastructuresthatplayacrucialroleindeliveringreliableandqualityelectricalpowertoconsumers.However,voltagesurgesignals,whicharetransientdisturbancescharacterizedbyasuddenincreaseinvoltagelevels,candisruptthenormaloperationofthesepowergrids.Theycancauseequipmentfailures,poweroutages,andevenleadtosafetyhazards.Therefore,theabilitytoaccuratelydetectandextractvoltagesurgesignalsisvitalfortheefficientoperationandmaintenanceofhigh-voltagepowergrids.
2.VoltageSurgeSignalExtractionTechniques
2.1Time-DomainAnalysis
Time-domainanalysismethodsinvolvestudyingtheelectricsignalwaveformdirectlyinthetimedomain.Thistechniqueincludesanalyzingtransientcharacteristicssuchasamplitude,risetime,duration,anddecaytime.Somecommonlyusedtime-domainanalysistechniquesincludepeakdetection,zero-crossinganalysis,andstatisticalsignalprocessing.Thesemethodscanprovidevaluableinformationaboutthevoltagesurgesignals,includingtheiramplitude,durat