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2-D versus 3-D electromagnetic field modeling in electromechanical energy converters

2-D versus 3-D electromagnetic field modeling in electromechanical energy converters
2-D versus 3-D electromagnetic field modeling in electromechanical energy converters
This paper provides comparative analysis between 2-D and 3-D numerical modeling of electromechanical devices by considering typical errors arising when 2-D models are assumed to model 3-D fields. It is argued that modeling simplifications need to be applied with great care as associated errors are not always predictable. In hierarchical design, both types of models are desirable hence balancing accuracy and computational effort is an increasingly important issue. Three examples are provided to illustrate the comparisons. The first shows a system with magnets for which magnetic field can be calculated analytically. The second concerns torque calculations in a permanent magnet motor. Finally, the third looks at a coil above a conducting plate with induced eddy currents. It is argued that by careful modification of selected parameters the 2-D results could be improved to make them consistent
with 3-D models.
approximation error, electromagnetic modeling, electromechanical devices, numerical analysis.
0018-9464
1-4
Demenko, Andrzej
68a3919c-d7b1-435a-b52a-da8701d20dde
Wojciechowski, Rafal
480ad3c0-5d3e-43ea-876f-504ffd735147
Sykulski, Jan K.
d6885caf-aaed-4d12-9ef3-46c4c3bbd7fb
Demenko, Andrzej
68a3919c-d7b1-435a-b52a-da8701d20dde
Wojciechowski, Rafal
480ad3c0-5d3e-43ea-876f-504ffd735147
Sykulski, Jan K.
d6885caf-aaed-4d12-9ef3-46c4c3bbd7fb

Demenko, Andrzej, Wojciechowski, Rafal and Sykulski, Jan K. (2014) 2-D versus 3-D electromagnetic field modeling in electromechanical energy converters. IEEE Transactions on Magnetics, 50 (2), 1-4. (doi:10.1109/TMAG.2013.2282415).

Record type: Article

Abstract

This paper provides comparative analysis between 2-D and 3-D numerical modeling of electromechanical devices by considering typical errors arising when 2-D models are assumed to model 3-D fields. It is argued that modeling simplifications need to be applied with great care as associated errors are not always predictable. In hierarchical design, both types of models are desirable hence balancing accuracy and computational effort is an increasingly important issue. Three examples are provided to illustrate the comparisons. The first shows a system with magnets for which magnetic field can be calculated analytically. The second concerns torque calculations in a permanent magnet motor. Finally, the third looks at a coil above a conducting plate with induced eddy currents. It is argued that by careful modification of selected parameters the 2-D results could be improved to make them consistent
with 3-D models.

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Accepted/In Press date: 10 September 2013
e-pub ahead of print date: 21 February 2014
Published date: 26 February 2014
Keywords: approximation error, electromagnetic modeling, electromechanical devices, numerical analysis.
Organisations: EEE

Identifiers

Local EPrints ID: 363045
URI: http://eprints.soton.ac.uk/id/eprint/363045
ISSN: 0018-9464
PURE UUID: 0c6f577d-8627-4de8-a708-644afe0451ad
ORCID for Jan K. Sykulski: ORCID iD orcid.org/0000-0001-6392-126X

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Date deposited: 12 Mar 2014 11:50
Last modified: 05 Nov 2019 02:09

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Contributors

Author: Andrzej Demenko
Author: Rafal Wojciechowski
Author: Jan K. Sykulski ORCID iD

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