An Electromagnetic Field and Electric Circuit Coupled Method for Solid Conductors in 3-D Finite-Element Method

The traditional low-frequency electromagnetic field computations do not include stray capacitive effect, while high-frequency solvers do not consider the nonlinear property of materials, and the internal regions of solid conductors as well as external circuit excitations. In this paper, the applicat...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2016-03, Vol.52 (3), p.1-4
Main Authors: Fu, W. N., Yanpu Zhao, Ho, S. L., Ping Zhou
Format: Article
Language:English
Subjects:
Capacitors
Circuits
Conductors
dimensional field
Edge-element
Electric potential
electromagnetic field
Excitation
field-circuit coupling
Finite element analysis
Finite element method
Magnetism
Mathematical analysis
Mathematical models
numerical method
solid conductor
Solids
Three dimensional
Three-dimensional displays
Windings
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Summary:The traditional low-frequency electromagnetic field computations do not include stray capacitive effect, while high-frequency solvers do not consider the nonlinear property of materials, and the internal regions of solid conductors as well as external circuit excitations. In this paper, the application of 3-D edge-element finite-element method (FEM) to problems with both inductive and capacitive effects for solid conductors, under external circuit excitations using the formulation with a magnetic vector potential and an electric scalar potential, is presented. The novel field-circuit coupled method that is presented does not need to look for the integration path of electromotive force computation. It has the merit of being convenient in algorithm implementation. Several numerical examples are given to showcase the proposed formulation and the developed computer program using an edge-element FEM.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2015.2487362