Computation of 3-D current driven skin effect problems using a current vector potential

A finite element formulation of current-driven eddy current problems in terms of a current vector potential and a magnetic scalar potential is developed. Since the traditional T- Omega method enforces zero net current in conductors, an impressed current vector potential T/sub 0/ is introduced in bot...

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Published in:IEEE transactions on magnetics 1993-03, Vol.29 (2), p.1325-1328
Main Authors: Biro, O., Preis, K., Renhart, W., Vrisk, G., Richter, K.R.
Format: Article
Language:English
Subjects:
661300 - Other Aspects of Physical Science- (1992-)
Applied sciences
CALCULATION METHODS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Coils
Conductors
CURRENT DENSITY
Current distribution
CURRENTS
EDDY CURRENTS
ELECTRIC CONDUCTORS
ELECTRIC CURRENTS
Electrical engineering. Electrical power engineering
ELEMENTS
Exact sciences and technology
FINITE ELEMENT METHOD
Finite element methods
IRON
Magnetic cores
MAGNETIC FIELDS
METALS
NUMERICAL SOLUTION
POTENTIALS
SKIN EFFECT
THREE-DIMENSIONAL CALCULATIONS
Transformers and inductors
TRANSITION ELEMENTS
Wounds
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cited_by cdi_FETCH-LOGICAL-c399t-7a1cd8d224932fbca630740a1950e6dd8e63fd78b3203c1db74738abc57241fd3
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creator Biro, O.
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Richter, K.R.
description A finite element formulation of current-driven eddy current problems in terms of a current vector potential and a magnetic scalar potential is developed. Since the traditional T- Omega method enforces zero net current in conductors, an impressed current vector potential T/sub 0/ is introduced in both conducting and nonconducting regions, describing an arbitrary current distribution with the prescribed net current in each conductor. The function T/sub 0/ is represented by edge elements, while nodal elements are used to approximate the current vector potential and the magnetic scalar potential. The tangential component of T is set to zero on the conductor-nonconductor interfaces. The method is validated by computing the solution to an axisymmetric problem. Problems involving a coil with several turns wound around an iron core are solved.< >
doi_str_mv 10.1109/20.250642
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Since the traditional T- Omega method enforces zero net current in conductors, an impressed current vector potential T/sub 0/ is introduced in both conducting and nonconducting regions, describing an arbitrary current distribution with the prescribed net current in each conductor. The function T/sub 0/ is represented by edge elements, while nodal elements are used to approximate the current vector potential and the magnetic scalar potential. The tangential component of T is set to zero on the conductor-nonconductor interfaces. The method is validated by computing the solution to an axisymmetric problem. 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ispartof IEEE transactions on magnetics, 1993-03, Vol.29 (2), p.1325-1328
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1941-0069
language eng
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source IEEE Electronic Library (IEL) Journals
subjects 661300 - Other Aspects of Physical Science- (1992-)
Applied sciences
CALCULATION METHODS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Coils
Conductors
CURRENT DENSITY
Current distribution
CURRENTS
EDDY CURRENTS
ELECTRIC CONDUCTORS
ELECTRIC CURRENTS
Electrical engineering. Electrical power engineering
ELEMENTS
Exact sciences and technology
FINITE ELEMENT METHOD
Finite element methods
IRON
Magnetic cores
MAGNETIC FIELDS
METALS
NUMERICAL SOLUTION
POTENTIALS
SKIN EFFECT
THREE-DIMENSIONAL CALCULATIONS
Transformers and inductors
TRANSITION ELEMENTS
Wounds
title Computation of 3-D current driven skin effect problems using a current vector potential
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