一种较准确的分裂导线表面场强计算方法

3042X)62PowerSystemTechnologyM1.30Feb.NO.42X:1(3673(2006)04009205:TM3+.1:A:1401520,,,,,102206;2.,071003;3.,0650()0)AMoreAccurateCalcuIationMethodofSurfaceEleetricFieldIntensityofBundledConduetorssuNeaihual,zoNoweil,Llsqiongl,NeehuiZ,Nweiwei3(1.SehoolofEleetriealEngineering,NorthChjnaEleetricPowerUniversity,ChangPingDistriet,BeijinglO2206,China;2.DePartmentofSeieneeandTeehnology,NorthChinaEleetriePowerUniversity,Baoding0710()3,HebeiProvinee,China;3.LangfangPowerSupplyComPany,Langfang0650(X),HebeiProvinee,China)ABSTRACT:AsforthedesignofUHVtransmissionlines,theealculationofsurfaeeeleetriefieldintensityofbundledconduetors15oneofthemainProblems.Basedonehargesimulationmethodamoreaceurateealeulationmethodofsurfacefieklintensityofbundledeonductors15ProPosed,inwhichthePositionofsimulationcharges15adaPtivelydetenllinedandtheforlllulaetoealculatemaximalfieldintensityofeaehPhasearededuced,50themaximalfieldintensityonthesurfaeeofarbitreonduetorandthatatanysPatialLeSSpointlmberaroundtheeonduetorcanbedirectlyealeulated.ofsimulationehargesareusedintheProPosedmethodandtheealeulation15simPle.TheresultsofeasestudyshowthattheProPosedmethod15aceurate.KEYWORDS:UHVtransmissionlines;Chargesimulamethod;Bundledeonduetors:AdaPtability;Surfacefieldintensity:Powersystemtlo:,,,,,,::;;;;1[},,,,[21,,3],,l7,ll],,91,[20-221,,,,,[23261,,,22.1,,3041,(,),,,,,,,,2Fig.1/\/41UsingadaPtivetheoryto6xthesimulationeharges2.2,,,:(1),(0);,Dr=Rllo(R);(2),p=,(),p(,O)(3),,(e),,,e,(6);(4),=+D;,(2)(3)e(5)e,(4);,(=),D;=DrlZ,(4)(6),,2.3,,,,xy,:ExR+jEx,,=E,+jE,,(RI)J-_El:=,=aretan;E_,E_=}E+E,.=arctan-v1,1,EyR,,,,=,,(t)IEma{+[(+E),+4(ExnEx,+Erl),],2},,,,,,,,:)1.30No.4,,{,26],Zr:Tab.2TheinfluenceOfriontsurleeetricIdandrlun.2mmr918uunrl,ZnŽn,lq”…nUCU”Ž5758OU86810nUOABC33.1,:4x2.959cm,0.457m,,13.72m,20.83mo.978em,21.95m,h=31.49m,765kV11,1765kVTab.1Caleuladonresultsco.risonofthesurceeleccneldintsityfora765kVACtransnIissionlineswithdirenteeuladonmethods)kVICln)18.65619.18.65618.98920218.98921,157126Ž0044400nll2222224.4.†ABCABC)()V/cm){kv/cm)1853421.1372lt1411723119.651193.1,,3,13Tab.3Thesurfaeeeleetriefieldofeaehbundledeonduetoffor4bundledeonduetortraosmissionlineVlcm)(kVm)V/cnl)(kv/cm)vlcm)V/cm)V/cm)V/cm)19.671l9Jl15714.19.2104.6)1974Jn†”rJ”UJŽOUOzwe”Jg17231988vlcm)kV/cm)3.2(),,2,765kV,,R=148cm,:19395l719,39814.786}7)4.461247871372mh18,29m2765kVFig.2COllocationofa765kVACtraonlines1502()2,.992nun,,,,,,43,,4,,;,,4,4.5.7kV/cm4.23.1,4xLGJ4004XLGJ300,44,,304954Tab.4ComParisonofthemaximalsurfaceele6eldatdillrentbundledeonduetorradius4XLGJ44xLGJ3(M)z(kvzem)z(kVzem)268524t94729.9()728,1734.33.1,4x2.959em62.959em8x2.959em,0.323m,55,,5Tab.5ComParisonofthemaximalsurfaeeelectrieneldatflrentbundlednUmber468/(kv/cm)z(kvzem)21411990616.172153331347012.7615(l),(2),,(3),,,,[ll,,.[J].,25,29(24):l4.SuHongtian,QiXu,WuYun.StudyonmarketdemandofUHVLKpowertransmissioninChinatJ.PowerSystemTeehnology,2(X)5,29(24):l4.[2l.1kV[Jl.,2)5,29(19):TIT6.[3].[J].,2(X)5,29(19):T11T14.[4,.[JI.[5][61,2(X)5,29(12):19.ZhouHao,YuYuhong.DiseussiononseveralimportantProbIemsofdevelopingUHVACtransmissioninchina[J].PowerSystemChnology,25,29(12):l9..[Jl.,2005,29(8):7.ShFangyinPhaseeonductoreonfigurationdPOwerfrequeneyeleetromagnetieenvironmentofUHVtlnsssionlinesinChina[Jl.POwersystemTeehnology,25,29(8):l7..[Jj,2005.2:l4.ngChangzhaoDiseussiononaPP!icationofUHVpowerlsmissionteehnologyinChinaSouthemPowerGridIJPowerSysmTechnology,2)5,29(suPP!ement):]4l.IJj.,2,29(14):]3.YuanQingyunPresentstateandaPPlicationProspeetofultraHVDCtransmissioninChina[J]PowerSystemTechnology,2(X)5,29(14):3.!8],,.1)kVJ].,2005,29(2):1013.XuWi,ChenShuiming,HeJinliang.Researchonswitchingovervoltageeausedbyfaultsinl(X)kVUHVACtransmissionlinetjl.PowersystemTechnology,25,29(21):1013.[9],,.1V[JI.,2005,29(19):l5.ChenShuiming,XuWei,HeJinliang.ResearehonpowerftequeneytransientovervoltageinlM)kVUHVACtransmissionline[J].PowerSystemTeehnology,25,29(19):]5.[10],,.[J].,2001,21(4):8387.ZhouWenjun,RuanJianun,WuXiong.Televisioninterfereneefromveryhighvoltagetransmissionlines[J.PnxeedingsoftheCSEE,2l,21(4):8387.[1I],,.[J].,2005,29(6):15.NakamuraAkio,okamotoHiroshi,CaoXianglin.Introduetionto1)kVtransmissionteehnologieseonduetedbyTokyoEleetriePowerComPanyJ].PowerSystemTechnology,2(X)5,29(6):l5.[l2],.fjj.,20()5,29(3):14.WuJingru,XuYOngxi.DeveloPmentProspectofUHVACpowertransmissioninChina].PowerSystemTeehnology,2()5,29(3):l4.1313601.M.:,1984.4],.M].:,190051,,,okv22vIJI.,2x,26(lO):47.LuoZhenhai,ChenMian,ChenWijiallg,etal.StUdyonshuntgaPlightningProtectionfor110kVand220kVeomsiteinsulatorsIJ].PowersystemTeehnology,2(2,26(10):4147[16DesideriD,GuarnieriM,POliE.MVlineelectriefieldevaluationnearaeoncretepole[J].IEEETransonMagneties,2,(2):718721.17],.5kv[J].,2(X)2,26(4):4952.ShuYinbiao,ZhaoChenghua.Studyandin1Plementationofs(X)kVeomPactpowertransrnissionlinewithdoubleeuitsonthesametowerinChina].POwerSystemTeehnology,2(X)2,26(4):4952.[l8],.sookvIJ].,2(X)3,27(7):7577.YuYOuwen,JinYOngehun.KeyteChnologiesfors(X)kVeomPacttransmissionlinefromChangPingtoFangshan[J].PowerSystemTee