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| Titel: |
A Method for Solving the Time-Periodic Electromagnetic Field Problem in Ferromagnetic Shielding |
| Auteur: |
Iosif Nemoianu Florea Ioan Hantila Mihai Maricaru Dan Rucinschi Teodor Leuca |
| Verschenen in: |
Journal of electrical and electronics engineering |
| Paginering: | Jaargang 2 (2009) nr. 1 pagina's 83-86 |
| Jaar: |
2009 |
| Inhoud: |
Ferromagnetic shield is an efficient solution for shielding the static and periodic electromagnetic field. Therefore, it is also a shilding solution for an electromagnetic field having a rich contain of harmonics. Using the polarization fixed point method, the nonlinear media is replaced by a linear one having the vacuum permeability and a magnetization that is iteratively corrected by the flux density. For each harmonic of the magnetization, the electromagnetic field may be obtained by solving the sinusoidal steady-state eddy-current equation in the shield. The solution process can be started by retaining a small number of harmonics and, finaly, the acuracy of the solution may be improved with adding some more. The proposed method always yields to stable results, even when the characteristic B-H is strongly nonlinear, and has a superior computational efficiency with respect to various time-stepping techniques and to the “harmonic balance method”. |
| Uitgever: |
Editura Universităţii din Oradea (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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