Electromagnetic phenomena in HTS bulk subjected to a rotating field

Author

Qiu, M. ; Huo, H.K. ; Xu, Z. ; Xia, D. ; Lin, L.Z.

Author_Institution

Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing, China

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1898

Lastpage

1901

Abstract

In HTS rotating systems, it is possible for HTS bulk to be subjected to rotating magnetic fields due to various inhomogeneities. The dynamic response of HTS will strongly affect the operating characteristics. In this paper, we rely on flux dynamics to study the magnetic behavior of HTS bulk in a rotating field. The flux evolution, the possible electromagnetic oscillation, the effect of the anisotropy and the role of transverse rotating-field component are qualitatively discussed. The associated losses are derived from numerical simulation.

Keywords

eddy current losses; electromagnetic oscillations; high-temperature superconductors; magnetic anisotropy; magnetic fields; magnetic flux; permanent magnets; HTS bulk; HTS rotating systems; anisotropy; dynamic response; electromagnetic oscillation; electromagnetic phenomena; flux dynamics; flux evolution; high T_c superconductor; losses; magnetic behavior; magnetic diffusion; numerical simulation; rotating magnetic fields; transverse rotating-field component; AC generators; Electromagnetic fields; Frequency; High temperature superconductors; Magnetic anisotropy; Magnetic fields; Magnetic flux; Magnetic levitation; Perpendicular magnetic anisotropy; Superconducting magnetic energy storage; High-$rm T_rm c$ superconductor; magnetic diffusion; rotating field;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.830923

Filename

1325182