Axisymmetric transient electromagnetic finite‐difference scheme including prescribed motion

M. Klocke (Institute of Electrical Machines, University of Dortmund, Dortmund, Germany)

Abstract

A finite‐difference‐scheme for axisymmetric transient electromagnetic fields is presented, which also takes into account an arbitrary prescribed motion of a substructure and motion inductive effects arising therefrom. For the arrangement at rest transient effects governed by the consequences of electromagnetic induction, e.g. the skin effect, are also taken into account. The behaviour of lumped external network elements is modelled by additional equations. A remeshing procedure is avoided by a special modelling technique. The method is tested for simple arrangements with axial and radial, i.e. expansive motion of a rectangular ring cross‐section. Comparisons with lumped parameter analysis are carried out.

Keywords

Citation

Klocke, M. (2004), "Axisymmetric transient electromagnetic finite‐difference scheme including prescribed motion", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 23 No. 4, pp. 1023-1035. https://doi.org/10.1108/03321640410553454

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Publisher

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Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited

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