hal-00614423, version 1
Assessing anomalous losses with dynamic hysteresis models
International Journal of Applied Electromagnetics and Mechanics 33, 1-2 (2010) Pages 95-101
Résumé : A new approach to face the problem of dynamic hysteresis and assess extra-losses in soft magnetic materials is investigated. Thanks to a spatial averaging technique and a variational principle, a dedicated formulation is derived. It takes into account microscopic magnetization mechanisms and domain wall motion-induced Joule losses. A validation is proposed by assessing time-harmonic losses on a 2D-Pry and Bean iron sheet. Discussion includes also a confrontation with the delayed diffusion model and Bertotti's experiments.
- 1 :
- Schneider-Electric
- 2 :
- MINES ParisTech - École nationale supérieure des mines de Paris
- 3 :
- CEDRAT
- Domaine : Mathématiques
- Mots-clés : anomalous losses – dynamic hysteresis – eddy currents – Electromagnetism – magnetic materials – transient formulations
- hal-00614423, version 1
- http://hal-ensmp.archives-ouvertes.fr/hal-00614423
- oai:hal-ensmp.archives-ouvertes.fr:hal-00614423
- Contributeur :
- Soumis le : Jeudi 11 Août 2011, 11:16:04
- Dernière modification le : Jeudi 11 Août 2011, 11:16:04
Documents associés
DOI : 10.3233/JAE-2010-1101



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