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±800kV换流站电缆屏蔽方式研究
Title:ResearchonShieldingMethodsfor±800kVHVDCConverterStationCables
Abstract:
Inrecentyears,thedemandforhigh-voltagedirectcurrent(HVDC)transmissionsystemshasincreasedsignificantlyduetotheirnumerousadvantages.HVDCtechnologyisessentialforlong-distance,high-capacitypowertransmission,and±800kVHVDCconverterstationsareanintegralpartofsuchsystems.However,theelectromagneticfieldsgeneratedbythesestationscaninterferewithnearbyelectricalandcommunicationsystemsifnotproperlyshielded.Thisresearchpaperaimstoinvestigateandanalyzevariouscableshieldingmethodsforthe±800kVHVDCconverterstationinordertoreducepotentialinterferenceandensurereliableoperation.
Introduction:
The±800kVHVDCconverterstationplaysacrucialroleinHVDCtransmissionsystemsbyconvertingalternatingcurrent(AC)powertodirectcurrent(DC)powerorviceversa.Duringoperation,anintenseelectromagneticfieldisgenerated,encompassingtheconverterstation,includingitscables.Thesecables,whichconnecttheconverterstationtovariouscomponentsoftheHVDCsystem,actaspotentialradiatorsofelectromagneticinterference(EMI).Thus,effectiveshieldingmethodsareessentialtominimizeEMIemissionsandensureelectromagneticcompatibility.
LiteratureReview:
Acomprehensivereviewofexistingresearchandstandardsoncableshieldinghasbeenconductedtogaininsightsintovariousmethodologies.Severalcommonlyusedshieldingtechniquesforhigh-voltagepowercableshavebeenidentified,suchasmetallicshields,dielectricshields,andcompositeshields.Furthermore,theimpactofdifferentshieldingmaterialsandtheireffectivenessinreducingEMIemissionsandattenuatingelectromagneticfieldshasbeenevaluated.Additionally,theinfluenceoffactorssuchascablelayout,groundingmethods,andinsulationmaterialsontheshieldingeffectivenesshasbeenstudied.
Methodology:
Toinvestigatethemostsuitableshieldingmethodfor±800kVHVDCconverterstationcables,variousanalysisandsimulationtechniqueswillbeemployed.Theelectromagneticinterferencelevelswillbemeasuredandanalyzedatdifferentdistancesfromthecablesusingelectromagneticfieldsimulat