TRANSER的实例.ppt

基于ANSYS的电力变压器磁场计算方法 西安交通大学高压教研室汲胜昌2008年5月 一变压器的结构 低压绕组匝数 24低压绕组导线截面积 48mm2高压绕组匝数 2100高压绕组导线的截面积 5 31mm2 二有限元分析 ANSYS 2 1参数化结构模型 transformerfor31500kVA 35kV 400V developedbyOu FILNAME Single Part1 Initializingtheparameterofgeometryandproperties Pi 3 1415926Ri 94E 03 Radiusofironcore G1 10E 03 GapbetweencoreandinnerHVwinding G2 5E 03 GapbetweenLVandHV G3 5 5E 03 Gapbetweenwindingandyoke Hhv 460E 03 HeightofHVwinding Hlv 420E 03 HeightofLVwinding Hi Max Hlv Hhv 2 G3Whv 12 2 6 11 5 1E 03 WidthofinnerHVwinding Wlv 3 5 1E 03 WidthofLVwinding Wt 450E 03 Lengthbetweentwocorecenterlines Nlv 24 HalfturnsofLVwinding Slv 3 16E 06 AreaofcoreconductoraboutLV Flv Nlv Slv 2 Wlv Hlv FillfactorabouLV Shv 5 31E 06 AreasofcoreconductoraboutHV Nhv 12 175 TurnsofHVwinding Fhv Nhv Shv 2 Whv Hhv FillfactorabouHV 2 2建立轴对称的有限元模型 Part2 CreatinghalfFEMmodel PREP7R1 Ri G1R2 R1 Wlv G2Rectng 0 Ri Hhv HhvRectng R1 R1 Wlv Hlv Hlv LVwinding Rectng R2 R2 Whv Hhv Hhv HVwinding Rectng 0 Wt Ri Hi Hi Air AOVLAP ALLNumCmp All 2 3定义单元类型和材料属性 Part3 Definingtheproperties ET 1 53 1 Air ironET 2 53 3 1 Primary LV winding ET 3 53 3 1 Secondary HV winding MP MURX 1 1 No 1 Air MP MURX 3 2000 No 4 Iron Rsvx Cu 1 24E 08 No Load 1 24 UIMP 2 MURX RSVX 1 Rsvx cu No 2 copperconductor R 1 Wlv Hlv Nlv 1 Flv LVwindings R 2 Whv Hhv Nhv 1 FhvASEL S 1AATT 3 1 ironcoreASEL S 2 LVwinding AATT 2 1 2Asel S 3 HVwinding AATT 2 2 3Asel s 4 Air AATT 1 1Allsel All Plane53单元的自由度设定 KEYOPT 1 Elementdegreesoffreedom 0 AZdegreeoffreedom staticdomain inducededdycurrentdomain1 VOLT AZdegreesoffreedom current fedmassiveconductor2 AZ CURRdegreesoffreedom voltage fedstrandedcoil3 AZ CURR EMFdegreesoffreedom circuit coupledstrandedcoil4 AZ CURR EMFdegreesoffreedom circuit coupledmassiveconductor Plane53单元的实常数设定 KEYOPT 1 2 voltageforcedorelectromagnetic circuitcoupledanalyses coilsormassiveconductors 2 3剖分 Part4 Meshingmodel Part4 1 Meshingcoil Lsel S 6 8 2Lesize All 24Lsel S 5 7 2Lesize All 1Lsel S 10 12 2Lesize All 175Lsel S 9 11 2Lesize All 12MShape 0 2D Qualaterialelements Mshkey 1 MappedMeshing ASel s Type 2 3Amesh All Part4 2 Meshingairregion Smrt 1Mshape 1 2DMshKey 0ASel S mat 1ASel a mat 3Amesh AllAllsel All 2 4场路耦合 Et 4 Circu124 0 Resistorterminalload Et 5 Circu124 5 StrandedCoil ToFEMdomain ET 6 circu124 5ET 7 circu124 4 voltagecoilR 4 1 0E 10 Magnitudeofloadresistor R 5 1 SymmetryfactorforstrandedcoilR 6 1 SymmetryfactorforstrandedcoilUlv 2 appliedVoltageOnLVWindingsR 7 Ulv 2N 0 4 0 1 Nmax 5N 0 4 0 1 Nmax 4N 0 6 0 1 Nmax 3 No1 terminalnodelinkedresistor N 0 6 0 1 Nmax 2N 0 8 0 1 Nmax 1N 0 8 0 1 Nmax Get Nmax Node 0 Num Max type 7 Voltagesourcereal 7E Nmax 5 Nmax 4 Nmax 3type 6 StrandedCoil ToFEMdomain real 6E Nmax 5 nmax 4 node R1 0 0 Type 4Real 4E Nmax 2 Nmax 1 Resistorelement Type 5Real 5E Nmax 2 Nmax 1 Node R2 0 0 Strandedcoil Allsel All CIRCU124CircuitElementOptions CIRCU124CircuitSourceOptions CIRCU124CoupledCircuitSourceOptions 其中 2 5加载 边界条件及电流 电动势耦合 Part6 Applyingtheboundaryconditions ESel S type 2NSLE SCP 1 CURR ALL CoupleCurrentinsideLVwinding CP 2 EMF allEsel s Type 3NSLE SCp 3 Curr AllCp 4 EMF All CoupleCurrentinsideHVwinding Allsel allD Nmax 4 Volt 0D Nmax 1 volt 0nsel s loc x 0D all az 0Allsel AllFINISH 2 6求解 Part6 Applyingtheloadandsolving SOLUFrq 50ANTYPE HarmicHarFrq FrqAllsel ALLSOLVEFINISH 2 7后处理 Part7 Postprocedure Part7 1 Current RMS insidetwowinding Post1 Dim I rms Array 2 Dim Ir Array 2 Dim Ii Array 2 Do I 2 3 No 2 Primary No 3 secondary Esel S Type INSLE s Get N Node 0 Num Min Pointinsidewinding Set 1 Get I1 Nod