Experimental and Numerical Analysis of Electrothermal and Mechanical Phenomena in HTS Tube of Inductive SFCL

Kozak, S.; Janowski, T.; Wojtasiewicz, G.; Kozak, J.

doi:10.1109/tasc.2006.871268

Cited by 13 publications

(10 citation statements)

References 9 publications

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“…They may also be applied as the approximate estimation for the hot spot location analyses that are the most crucial ones in transformer modeling. Finally, these already published models and procedures may be used as components of coupled approaches [15,26,44,49,97]. Such thermal-electromagnetic couplings appeared to be the most accurate for the temperature field predictions in all type of transformers.…”

Section: Background Of Coupled Cfd-electromagnetic Solutionsmentioning

confidence: 99%

“…Most of the authors [44,49,97] determine the hot spot value, its location and the whole temperature distribution within the device using this type of equation only. As a result, the temperature field in the solid parts of the transformer and its tank is analysed.…”

Section: Mathematical Model Of Flow and Heat Transfer Problemmentioning

confidence: 99%

“…Since the calculations are usually conducted in steady-state [32,44,49], the only material property for solids that occurs in the Fourier-Kirchhoff equation for steady state processes is the thermal conductivity. Furthermore, because of the presence of radiation, the emissivity enters the analysis as an additional property.…”

Section: Thermal Properties Of Solid Materialsmentioning

confidence: 99%

“…Most of the papers describing the coupled thermal and electromagnetic problems within electrical transformers consider the heat conduction equation [15,26,44,49,97]. This kind of problem can be calculated using many numerical techniques.…”

Section: Solution Strategy For the Cfd Analysismentioning

confidence: 99%

See 3 more Smart Citations

Numerical Simulation and Experimental Validation of Coupled Flow, Heat Transfer and Electromagnetic Problems in Electrical Transformers

Smołka

Bíró

Nowak

2009

Arch Computat Methods Eng

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The paper presents a state-of-the-art of the numerical modeling of the coupled problems involving heat, fluid flow and electromagnetic phenomena in electrical transformers. Mathematical descriptions of both Computational Fluid Dynamics (CFD) and electromagnetic (EMAG) models are given. Since these models include other submodels for a definition of boundary conditions as local and temperature-dependent convective and radiative heat fluxes, heat generation terms, temperature-dependent and effective values of material properties for different constructions of coils etc., the component problems published in a subject literature are also reported. Moreover, a coupling procedure of the CFD and EMAG solutions to examine the specific power losses within coils and a core is outlined. On the basis of the mathematical model, a numerical example of a three phase medium-power dry-type electrical transformer is presented. A validation of the numerical calculations is performed using the experimental transformer temperature tests in the short-circuit, open-circuit, and under rated parameters according to the current European Standards for dry-type transformers. During the tests, temperatures were measured at selected points on transformer elements using thermocouples and thermometers, while on the external tank walls an infrared thermography was employed.

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Section: Background Of Coupled Cfd-electromagnetic Solutionsmentioning

confidence: 99%

Section: Mathematical Model Of Flow and Heat Transfer Problemmentioning

confidence: 99%

Section: Thermal Properties Of Solid Materialsmentioning

confidence: 99%

Section: Solution Strategy For the Cfd Analysismentioning

confidence: 99%

See 2 more Smart Citations

Numerical Simulation and Experimental Validation of Coupled Flow, Heat Transfer and Electromagnetic Problems in Electrical Transformers

Smołka

Bíró

Nowak

2009

Arch Computat Methods Eng

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“…Their principle comes from the progressive increase of superconductor resistivity as the power losses in it also augment. Magneto-thermal models describing the behaviour of resistive SFCLs have been proposed in the literature [7][8][9][10][11]. These models are capable of providing various operational models of SFCL devices, and enable the determination of the main dimensions of the limiter to ensure its thermal stability under all operating conditions [16].…”

Section: Introductionmentioning

confidence: 99%

Proposal for an RMS thermoelectric model for a resistive-type superconducting fault current limiter (SFCL)

Branco¹,

Almeida²,

Dente³

2010

Electric Power Systems Research

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Modeling of Shield-Type Superconducting Fault-Current-Limiter Operation Considering Flux Pinning Effect on Flux and Supercurrent Density in High-Temperature Superconductor Cylinders

Hekmati

2013

J Supercond Nov Magn

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Experimental and Numerical Analysis of Electrothermal and Mechanical Phenomena in HTS Tube of Inductive SFCL

Cited by 13 publications

References 9 publications

Numerical Simulation and Experimental Validation of Coupled Flow, Heat Transfer and Electromagnetic Problems in Electrical Transformers

Numerical Simulation and Experimental Validation of Coupled Flow, Heat Transfer and Electromagnetic Problems in Electrical Transformers

Proposal for an RMS thermoelectric model for a resistive-type superconducting fault current limiter (SFCL)

Modeling of Shield-Type Superconducting Fault-Current-Limiter Operation Considering Flux Pinning Effect on Flux and Supercurrent Density in High-Temperature Superconductor Cylinders

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