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 / C., Beatrice; C., Appino; O., de la Barrière; F., Fiorillo; Ragusa, CARLO STEFANO. - In: IEEE TRANSACTIONS ON MAGNETICS. - ISSN 0018-9464. - STAMPA. - 50:4(2014). [10.1109/TMAG.2013.2286923]

Broadband Magnetic Losses in Fe-Si and Fe-Co Laminations

RAGUSA, CARLO STEFANO
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.
File in questo prodotto:
File Dimensione Formato  
Broadband Magnetic Losses in Fe-Si and Fe-Co Laminations.pdf

non disponibili

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 658.43 kB
Formato Adobe PDF
658.43 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

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/11583/2518568
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo