Affiliations: [a] Laboratoire LEB, Département Electrotechnique,
Faculté des Sciences de l'Ingénieur, Université de Batna,
Rue Chahid Med Elhadi Boukhlouf, 05000 Batna, Algérie. E-mail:
[email protected], [email protected]
| [b] GE44/LRTI, CRTT, Bd de l'Université, BP 406,
44602 Saint-Nazaire, France. E-mail: [email protected]
Abstract: To characterize magnetic materials it is very important to take into
account the initial magnetization curve and the magnetic hysteresis loop.
Several approaches have been used to model these characteristics. However, some
problems related to the accuracy of the results, especially at the knee of the
curves have been encountered. This paper presents a contribution to solve this
problem using both a simulated annealing algorithm to optimize the parameters
of the Jiles-Atherton magnetic hysteresis model and the Brillouin theory to
express the anhysteritic magnetization. The obtained results are in good
agreement with measurements performed on silicon- iron sheets.
