Autor: |
Iosif Nemoianu, Florea Ioan Hantila, Mihai Maricaru, Dan Rucinschi, Teodor Leuca |
Jazyk: |
angličtina |
Rok vydání: |
2009 |
Předmět: |
|
Zdroj: |
Journal of Electrical and Electronics Engineering, Vol 2, Iss 1, Pp 83-86 (2009) |
Druh dokumentu: |
article |
ISSN: |
1844-6035 |
Popis: |
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”. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
|