DocumentCode
1072054
Title
An Analytical Determination of Eddy-Current Losses in a Configuration With a Rotating Permanent Magnet
Author
Markovic, Miroslav ; Perriard, Yves
Author_Institution
Ecole Polytech. Fed. de Lausanne, Lausanne
Volume
43
Issue
8
fYear
2007
Firstpage
3380
Lastpage
3386
Abstract
The paper presents a completely analytical method for determining the eddy currents in a cylindrical configuration. The configuration consists of a cylindrical permanent magnet rotating inside a conducting hollow cylinder (stator). The solution is obtained by solving a generalized form of the diffusion equation and applying the modified Bessel functions. The determination of the magnetic field in the air and in the stator, and the losses generated by the eddy currents, is completely analytical. The results are verified by finite-element software.
Keywords
Bessel functions; eddy current losses; finite element analysis; permanent magnets; stators; conducting hollow cylinder; cylindrical configuration; diffusion equation; eddy-current losses; finite-element software; modified Bessel functions; rotating permanent magnet; stator; Books; Eddy currents; Magnetic analysis; Magnetic fields; Maxwell equations; Permanent magnets; Skin effect; Soft magnetic materials; Stators; Toroidal magnetic fields; Eddy currents; losses; permanent magnet;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2007.900570
Filename
4277906
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