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1Fig.1Feedbackcontrolsystemdiagramofadaptivefiniteelementanalysis1,2(1.2016142.110870):,。:;;:TM401+.1:B:1001-8425(2010)01-0036-051。,。,。,,,。,,。,,1,,。、。、,,。,。22.11,。。,AdaptiveFiniteElementAnalysisofElectromagneticFieldinTransformerLIJin蛳biao1,XIEDe蛳xin2(1.ChintElectricCo.,Ltd.,Shanghai201614,China;2.ShenyangUniversityofTechnology,Shenyang110870,China)Abstract:Theadaptivefiniteelementanalysismethodandthedevelopedcomputerprogramforelectromagneticfieldintransformerarepresented.Theirvalidityisverifiedbasedexam-ples.Keywords:Transformer;Electromagneticfield;AdaptivefiniteelementmethodTRANSFORMER47120101vol.47JanuaryNo.12010、1:①;②,,。,、。,,。,:(1),()。(2)(),()。。:ηe=‖e‖E=V乙eTεed乙乙V12=V乙[R(塄φh)-塄φh]Tε[R(塄φh)-塄φh]d塄塄V12(1)e———,e=R(塄φh)-塄φh‖e‖E———塄φh———R(塄φh)———ε———,。、,。,,,。,。,,:ηe=ηBe+ηJe(2)ηBe———BηJe———JηBeηJe:ηBe=V乙[B*-Bh]T1μ[B*-Bh]d塄塄V12(3)ηJe=V乙[J*-Jh]T1σ[J*-Jh]d塄塄V12(4)B*———J*———Bh———Jh———T———V———μ———σ———(1)、(3)(4)[5],。,CIL,[3]。CIL,,,。2.2。。、。,,1。。,。、,:ηT=Ni=1Ση2eiΣΣ1/2×100(5)ηei———N———1Table1Element-refinementcontrolalgorithmθ1∈(0,1),θ2∈(0,1),υ=0.1P(e):ηk=蒡ηs:sum=0,γ=1whilesum<θ1ηk.and.γ>1-θ2doγ=γ-υP(e)γNkηγSkSdoIfS,Ifηs>ηγ;sum=sum+ηsEnddoEnddo3747(a)(b)(c)(d)2Fig.2Diagramofpartialrefinementmethodoftriangleelement,:ηT=Ni=1Ση2ei(ωQ)2+P2ΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣ1/2×100(6)Q———P———ω———,(7),。ηT<η0(7)η0———3,,。,。,,。,。2。,。4,,、、。,。110kV3。3a3b。,,。4。4,4a,4b。5。,。,,(b)(a)3Fig.3Distributiondiagramofequipotentiallineofendinsulationintransformer(b)(a)4Fig.4Distributiondiagramoftranformerleakagefield38、1(b)3(a)821AFig.8FddycurrentdistributioninProblem21A65432110111213/%5Fig.5Impedancevoltageanditerationcurveoftransformer。21A(TeamWorkshopProblem21A)6。,。21A7,8。6~8,,,。,。5,,。,。、,。:[1]KulkarniSV,KhapardeSA.Transformerengineering:designandpractice[M].NewYork:MarcelDekker,2004.[2]BabuskaI.Thefiniteelementmethodanditsreliability[M].Oxford:ClarendonPress,2001.[3].[D].:,2009.[4]AinsworthM,OdenJT.Aposteriorierrorestimationinfiniteelementanalysis[M].NewYork:Awiley-inter-sciencepublication,2000.[5]ZienkiewiczOC,TaylorRL.Thefiniteelementmethod[M].NewYork:Butterworth-heinemann,2005.15000050000051015/W621AFig.6CurveofnodenumberandeddycurrentlossinProblem21A(a)(b)3721AFig.7SurfacemeshdiagraminProblem21A(68)3947(2),。,,,。(3),,。,,,。,,,,,,,,,,,,。,。:[1].[M].:,2007.[2],,.[J].,1999,10(4):9-13.[3],.[M].:,2006.[4],.[M].:,2004.[5],,.[J].,2008,49(8):42.[6],.110kV[J].,2007,35(18):75-77.[7],.110kV[J].,2007,12(1):17-20.:2008-12-12:(1975-),,,,。!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(39):2009-10-12:(1965-),,,,,、、。[6],,·,,[M].:,2009.effectsofgeomagneticstormsonelectricpowersystem[J].IEEETrans.PowerAppar.&Syst.,1974,PAS-93(4):1031-1044.[2]AlbertsonVD,ThorsonJM,ClaytonREetal.Solarinducedcurrentsinpowersystem:causeandeffects[J].IEEETrans.PowerAppar.&Syst.,1973,PAS-92(2):471-477.[3]KappenmanJG.Albertsonforthegeomagneticstorms[J].IEEESpect.Magaz.,1990,27(3):27-33.[4],,.()[M].,1995.[5],,.[J].,2004,23(3):1-5.[6],.500kV[J].,2005,31(4):85-87.[7],.500kV[J],2006,3(6):6-10.[8],.[J].,2006,43(8):43-44.[9]WallingRA,KhanAH.Characteristicsoftransformerexciting-currentduringgeomagneticdisturbance[J].IEEETrans.PowerDeliv.,1991,6(4):1707-1714.[10]PriceP.R.Geomagneticallyinducedcurrenteffectsontransformers[J].IEEETrans.PowerDeliv.,2002,17(4):1002-8.[11]YouY,FuchsE.F,LinD,etal.Reactivepowerde-mandoftransfromerswithDCbias[J].IEEETrans.Ind.Appl.Magaz.,1996,2(4):45-52.[12]LuShu,LiuYilu,JDeLaRee.HarmonicsgeneratedfromaDCbiasedtransformer[J].IEEETrans.PowerDe-liv.,1993,8(2):725-731.:2009-02-17:(1954-),,,,、。(46)68
本文标题:变压器电磁场问题的自适应有限元分析
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