Investigation Of The Transient Electromagnetic Processes And Forces In Metallic Environment Of Large Superconducting Magnets By An Optimized Finite Element Approach

Miri, A.M.; Riegel, N.A.; Meinecke, C.; Sihler, C.; Schauer, F.

doi:10.1109/optim.1998.710445

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…9.2). In order to minimise the electrical stress of the conductor insulation during current operation each inner pancake joint potential is connected with the potential of its own radial plate [171]. During current operation resistors of 1.2 M were put in all connections between radial plates and inner pancake joints to limit the current in case of a fault in the conductor insulation.…”

Section: High Voltage Insulation Concept and Test Strategymentioning

confidence: 99%

The ITER toroidal field model coil project

Ulbricht

Duchateau

Fietz

et al. 2005

Fusion Engineering and Design

119

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Section: High Voltage Insulation Concept and Test Strategymentioning

confidence: 99%

The ITER toroidal field model coil project

Ulbricht

Duchateau

Fietz

et al. 2005

Fusion Engineering and Design

119

View full text Add to dashboard Cite

FE calculation of transient eddy currents in thin conductive sheets using dynamic boundary conditions

Miri

Riegel

Meinecke

1998

Int. J. Numer. Model.

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This paper presents an FE modelling approach for the calculation of transient eddy currents in thin conductive layers, where the complexity of the geometry prohibits both a detailed FE modelling and the use of analytical tools. The method allows an estimation of the maximum values of eddy currents at a highly reduced modelling effort and the use of a commercial FE software package. A prerequisite is a slowly varying magnetic field that can be assumed to be unaffected by the eddy currents. It is shown that neither the source of the magnetic field nor the insulating environment has to be modelled. The model is built up exclusively from 2D elements and is excited via the magnetic vector potential. The spatial distribution of the latter is calculated separately in a magnetostatic calculation based on Biot–Savart's law. It is then applied in time‐varying form as a dynamic boundary condition at every node of the model. The method was applied to a simple problem for which the results of a detailed FE calculation were available, to document its validity. Further numerical results are presented for the plasma vessel and the heat radiation shield of the Wendelstein 7‐X fusion experiment in the case of an emergency discharge. © 1998 John Wiley & Sons, Ltd.

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Investigation Of The Transient Electromagnetic Processes And Forces In Metallic Environment Of Large Superconducting Magnets By An Optimized Finite Element Approach

Cited by 2 publications

References 2 publications

The ITER toroidal field model coil project

The ITER toroidal field model coil project

FE calculation of transient eddy currents in thin conductive sheets using dynamic boundary conditions

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