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当前位置:首页 > 行业资料 > 国内外标准规范 > 特高压特大容量变压器三维涡流场计算和防止局部过热技术的研究
1,1,1,1,2(1.0710562.071056):,,。:;;:TM401+.1:B:1001-8425(2009)09-0001-051,,,。,,,、,。,。ODFPS-1000000/1000(UHV),、,,。,,。22.1,[1,2]。,,。2.2,2D。,2D。,2D[3]。,:(No.50477049)46920099TRANSFORMERVol.46SeptemberNo.920093DEddyCurrentFieldCalculationandPartialOverheatProtectionTechnologyResearchofUHVLargeTransformerLIUDong蛳sheng1,ZHANGJun蛳jie1,ZHAOFeng1,ZHANGXi蛳le1,CHENGZhi蛳guang2(1.BaodingTianweiBaobianElectricCo.,Ltd.,Baoding071056,China;2.BaodingTianweiGroupCompany,Baoding071056,China)Abstract:The3DleakagemagneticfieldinfourschemesofelectricandmagneticshieldsofUHVtransformerisanalyzedwithFEM.Themethodstocalculateeddycurrentandmagnetichysteresislossesareresearched.Theexampleispresented.Keywords:Transformer;UHV;Leakagemagneticfield4612D3DTable1Simulationdataof2Dand3Dleakagemagneticfields/T/T/T2DMagNet0.380.3111.4883DMagNet0.380.2821.6202DTOSCA0.380.3111.488:MagNet誖Infolytica;TOSCA誖VectorFields。BhbBrd1Fig.1Conductorsection,,2D。,,,3D。2D、3D(),1。1,,2D3D;,2D,,。2D。,、,,,。,1000MVA/1000kV。33.1,,,,。,,,1。::Peri=124ρω2b2Bri2Vi:Pehi=124ρω2d2Bhi2ViBri———i,TBhi———i,Tρ———,Ω·mω———,rad/sb、d———,mVi———i,m3。2D,ViSi,Sii,m2Pe:Pe=Ni=1ΣPei=Ni=1Σ(Peri+Pehi)N———3.2,,。3.2.1,,。A-V-A:J=σE=-σ(At-塄V)Pe=V乙J2σdVA———V———,“”。,,。,,,。,。2、、9BBBmaxtHBmin3Fig.3Magneticfluxdensityandhysteresiscycle,,“”(Ho-mogenization),。,。3.2.2,,B。,(),。,、、。50Hz(A330RGH120)(Ph-Bm,)。(30RGH120)P-Bm,P()。,30RGH120Ph-Bm2。,。。,,Bm,Ph,,。Ph=Ni=1ΣPh(i)(Bm(i))ρV(i)ρ———,Bequ=(Bmax-Bmin)/2,Bequ,,。,MagNet誖V6.23,。,(minorloop),3,,,,。,,,。MagNet誖。4TEAM(TestingElectromagneticAnalysisMethods)Problem21。1000kV,TEAMProblem21,。2。51000kV1000MVA/1000kV,。,4,,,。、、、,21.510.5000.20.40.60.811.21.4Bm/TPh/W·kg-12Ph-BmFig.2Ph-Bmcurveofcoldrolledsiliconeplate2Table2Calculatedandmeasureddataof3DfieldTEAMModelMagNetV6.23/WBTW/WMeasured/W/%InfolyticaBTWP21-A9.219.389.119.280.75P21-B12.3112.2812.0412.652.73463Table3Comparisonofsimulationdataofcomponentsintwotransformer1000MVA/1000kV334MVA/500kV1.17T~1.47T1.35T~1.48T<1.2T1.2T~1.3T0.03T0.038T1.2T1.2T1.5E05W/m31.6E05W/m3<3A/mm2<3A/mm2<4.13A/mm2<10A/mm27.0E05W/m31.7E06W/m36334MVA/500kVFig.6Totallossdistributionof334MVA/500kVUHVtransformercomponent51000MVA/1000kVFig.5Eddycurrentdistributiononclampplatesof1000MVA/1000kVUHVtransformer41000MVA/1000kVFig.4Totallossdistributionof1000MVA/1000kVUHVtransformercomponent2D、3D。61000kV1000MVA/1000kV,、、、、,。,,,2D3D、、、。,17.40%,17.38%,0.1%。45。4,。5,5。7,,。,,,。,ODFPS-334000/500(1000kV)。2,,。6。1000kV500kV、3。3,1000MVA/1000kV,334MVA/500kV,4、、9。81000MVA/1000kV,,。334MVA/500kV(,),,、,,,1000MVA/1000kV、。2008716,1000MVA/1000kV,,,,。1000MVA/1000kV,,,。:[1].[M].:,2003.[2]《》.[M].:,1988.[3],,.[M].:,2001.[4]ChengZ,TakahashiN,YangS,etal.Lossspectrumandelectromagneticbehaviorofproblem21family[J].IEEETrans.Magn.,2006,42(4):1467-1470.[5]BīrO,PreisK,TicarI.AFEMmethodforeddycur-rentanalysisinlaminatedmedia[J].COMPEL,2005,24(1):241-248.[6]ChengZ,HuQ,JiaoC,etal.Laminatedcoremodelsfordeterminingexcitingpowerandsaturationcharacter-istics[J].ICEF,2008,21(1):415-418.[7]MiyagiD,YoshidaT,NakanoM,etal.DevelopmentofmeasuringequipmentofDC-biasedmagneticpropertiesusingopen-typesingle-sheettester[J].IEEETrans.Magn,2006,42(10):2846-2848.[8]NakataT,IshiharaY,NakanoM.Ironlossesofsilionsteelcoreproducedbydistoredflux[J].Elect.Eng.inJap,1970,90(1):10-20.:2008-09-24:(1966-),,,、,、;(1975-),,,,、;(1970-),,,、,。!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!750kV2009617,,500MVA/750kV。,3750kV,,。,,、,,。,2004750kV-750kV,,4~5,,,。,,,、,、、,,。,,;,,,,。5
本文标题:特高压特大容量变压器三维涡流场计算和防止局部过热技术的研究
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