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Giant Magnetostrictive Materials for Field Weakening: A Modeling Approach

Guillaume Krebs 1 Laurent Daniel 2
1 COCODI - Equipe Conception, Commande et Diagnostic
LGEP - Laboratoire de génie électrique de Paris
2 ICHAMS - Equipe Interaction Champs - Matériaux et Structures
LGEP - Laboratoire de génie électrique de Paris
Abstract : In this paper, a proposal for a field weakening method for a permanent-magnet synchronous motor is evaluated. The method consists in inserting giant magnetostrictive elements between permanent magnets. The magnetic permeability of these magnetostrictive parts is modified when the speed increases. The field leakages around the permanent magnets are consequently increased, thus reducing the electromotive forces in the armature windings. An original modeling approach, based on the concept of equivalent stress, is proposed in order to evaluate this field weakening solution.
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https://hal-supelec.archives-ouvertes.fr/hal-00779081
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Submitted on : Monday, January 21, 2013 - 4:51:15 PM
Last modification on : Wednesday, September 16, 2020 - 5:42:43 PM

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Guillaume Krebs, Laurent Daniel. Giant Magnetostrictive Materials for Field Weakening: A Modeling Approach. IEEE Transactions on Magnetics, Institute of Electrical and Electronics Engineers, 2012, 48 (9), pp.2488-2494. ⟨10.1109/TMAG.2012.2196283⟩. ⟨hal-00779081⟩

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