ANSYS软件用于铁氧体磁芯平面变压器设计案例

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ansys软件的应用

CoupledElectromagneticandThermalAnalysisofFerriteCoreElectronicPlanarTransformer

MarkChristiniANSYS,Inc12023ANSYS,Inc.November16,2023

ansys软件的应用

OutlineIntroductionMaxwell3DEddyCurrentandElectrostaticSimulationANSYSMechanicalThermalSimulation2-wayThermalCouplingbacktoMaxwellSimplorerSystemSimulationusingMaxwellStateSpaceDynamicmodelSummary2023ANSYS,Inc.November16,2023

ansys软件的应用

CoupledElectromechanicalDesignFlowParasitics

Q3D

SystemDesignIAA

Simplorer

MotorDesignPMSYNCIBAICA:

RMxprt

TorqueAD2D

J

ICA

PP:=6

GAIN

ANSYSCFDFluidFlowMagnetics

PExprt

Thermal/Stress

ANSYSMechanical

ElectromagneticComponentsModelorderReductionCo-simulationFieldSolutionModelGeneration

Maxwell2D/3D

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2023ANSYS,Inc.

November16,2023

ansys软件的应用

FEAAdaptiveMeshing2DTransformerModel3DTransformerModel

2DTransformerMesh

3DTransformerMeshIn3D,finiteelementsaretetrahedra

In2D,finiteelementsaretriangles

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2023ANSYS,Inc.

November16,2023

ansys软件的应用

TransformerDesignChallengesMagneticeffects:–––––––nonlinearmaterialsfrequencydependentmaterialstempdependentmaterialseddycurrentsproximityeffectstimediffusionofmagneticfieldstransientexcitations

ElectricFieldeffects:–varyingdielectricpermitivities–varyingdimensionsandshape–3Dfieldeffects

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2023ANSYS,Inc.

November16,2023

ansys软件的应用

ANSYSComprehensiveSolutionSystem

ANSYSMixed-SignalMulti-DomainSystemSimulatorCircuit

ModelOrderReductionCosimulationComponentElectrical72023ANSYS,Inc.November16,2023

ANSYSWorkbenchMagneticFluidMechanicalThermalAcoustic

ansys软件的应用

WorkbenchCouplingTechnology

Electromagnetic

→

Thermal

→

Stress

→System

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2023ANSYS,Inc.

November16,2023

ansys软件的应用

ElectronicPlanarTransformerFerritePQCorePrimaryturns=4Secondaryturns=2InsulationlayersbetweenconductorsFundamentalFrequency=100kHz

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2023ANSYS,Inc.

November16,2023

ansys软件的应用

Maxwell3DSourceSetupLoadcasewithIpri=50AandIsec=80AUnbalancedA-turnsforcoreexcitation

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2023ANSYS,Inc.

November16,2023

ansys软件的应用

FerriteCorePropertiesFrequencydependent

permeabilityandimaginarypermeabilityUseSimplorerSheetscanutilitytograbpermeabilitydatapoints

Datasheet112023ANSYS,Inc.November16,2023

Sheetscan

ansys软件的应用

RequiredinputsforMaxwellarerealpermeabilityandlosstangentLosstangentbasedonseriesequivalentmodelTemp=0Cfrequency100000200000300000400000500000600000700000800000900000100000015000002000000300000040000005000000600000070000008000000900000010000000122023ANSYS,Inc.

FrequencyDependentCorePropertiesinMaxwell

sRδs='=ssωLs

perm193919772023205220902165228123222446253325812029828227976147393431

perm_imaglosstangent60.0032130.0068220.0110350.0173510.0244790.03631190.05221740.07502640.10783360.13269980.386921011.035121782.630616267.1618109311.219966310.83984248.96443278.36582717.94372287.4132November16,2023

ansys软件的应用

CoreMaterialProperties-InputsDatasetsusedtodefinepropertiesvs.frequency:RelativePermeability=pwl($perm,Freq)MagneticLosstangent=pwl($losstan,Freq)

Relativepermitivity=12Conductivity=0.5(S/m)

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2023ANSYS,Inc.

November16,2023

ansys软件的应用

CoreMaterialProperties-OutputsUse“namedexpression〞incalculatortoverifytherealandimaginarypermeabilityUsereporttoplot’andlosstangentvs.frequencyRealpermeability-’

NumVector1,0,0Materialpermmultiplycomplexrealmagconstantmu0divideRealpermeability-〞3000.00CurveInfomu_real_evalSetup1:LastAdaptivePhase='0deg'

PermeabilityandLossTangent

Maxwell3Ddesign2

ANSOFT

12.00

2500.00

loss_tangentSetup1:LastAdaptivePhase='0deg'

10.00

2000.00

8.00

mu_real_eval

NumVector1,0,0Materialpermmultiplycompleximagmagconstantmu0divideLosstangent

1500.00

6.00

1000.00

4.00

500.00

2.00

0.000.001.002.00Freq[MHz]3.004.005.00

0.00

δ=〞/’142023ANSYS,Inc.November16,2023

loss_tangent

ansys软件的应用

TemperatureSettingsinMaxwellInitialtemperature=22CCoreandwindingshavetempdependentmaterials

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2023ANSYS,Inc.

November16,2023

ansys软件的应用

Temperaturedependentcopperconductivityfor2-waycouplingtoMaxwellσ=1(1+0.0039*(Temp22))

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2023ANSYS,Inc.

November16,2023

ansys软件的应用

InitialConductivityat100kHz,22degCConductivity=5.8e7(S/m)Conductivityisconstantthroughoutwinding

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2023ANSYS,Inc.

November16,2023

ansys软件的应用

Temperaturedependentferritepermeabilityfor2-waycouplingtoMaxwell

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2023ANSYS,Inc.

November16,2023

ansys软件的应用

2-waycouplingfortemperaturedependentpermeabilitydegC-50-25025507489100113125137149162175183