We discuss comprehensive broadband (dc-10 kHz) investigations on magnetic losses in Fe-(3 wt%)Si and Fe-Co laminations. In this range of frequencies, the prediction of loss is not easy, because skin effect can be quite important. The theoretical approach generally relies on a dynamic hysteresis model in association with a diffusion equation, but it imposes heavy computational burden. We present here a computationally efficient dynamic hysteresis model based on the dynamic Preisach model (DPM), by which one can achieve fast and precise solution of the diffusion equation considering the hysteretic constitutive equation of the material. This is achieved at a greatly reduced computational cost with respect to the standard DPM. The loss results provided by this simplified model are at all frequencies in a very good agreement with the prediction by the full DPM and with the experiments.

Broadband magnetic losses in Fe-Si and Fe-Co laminations / Beatrice, Cinzia; Appino, Carlo; de la Barrière, O; Fiorillo, F; Ragusa, C.. - In: IEEE TRANSACTIONS ON MAGNETICS. - ISSN 0018-9464. - 50:4(2014), pp. 6300504-6300504-4.

Broadband magnetic losses in Fe-Si and Fe-Co laminations

BEATRICE, CINZIA;APPINO, CARLO;
2014

Abstract

We discuss comprehensive broadband (dc-10 kHz) investigations on magnetic losses in Fe-(3 wt%)Si and Fe-Co laminations. In this range of frequencies, the prediction of loss is not easy, because skin effect can be quite important. The theoretical approach generally relies on a dynamic hysteresis model in association with a diffusion equation, but it imposes heavy computational burden. We present here a computationally efficient dynamic hysteresis model based on the dynamic Preisach model (DPM), by which one can achieve fast and precise solution of the diffusion equation considering the hysteretic constitutive equation of the material. This is achieved at a greatly reduced computational cost with respect to the standard DPM. The loss results provided by this simplified model are at all frequencies in a very good agreement with the prediction by the full DPM and with the experiments.
IEEE TRANSACTIONS ON MAGNETICS
none
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11696/31066
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 18
  • ???jsp.display-item.citation.isi??? 9
social impact