Reference : Investigation of Demagnetization in HTS Stacked Tapes Implemented in Electric Machine...
Scientific journals : Article
Engineering, computing & technology : Electrical & electronics engineering
Engineering, computing & technology : Materials science & engineering
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/180535
Investigation of Demagnetization in HTS Stacked Tapes Implemented in Electric Machines as a Result of Crossed Magnetic Field
English
Baghdadi, M. [University of Cambridge > Department of Engineering > Electric Engineering Division > >]
Ruiz, H. S. [University of Cambridge > Department of Engineering > Electric Engineering Division > >]
Fagnard, Jean-François mailto [Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques >]
Zhang, M. [University of Cambridge > Department of Engineering > Electric Engineering Division > >]
Wang, W. [University of Cambridge > Department of Engineering > Electric Engineering Division > >]
Coombs, T. A. [University of Cambridge > Department of Engineering > Electric Engineering Division > >]
Jun-2015
IEEE Transactions on Applied Superconductivity
IEEE
25
3
6602404
Yes (verified by ORBi)
International
1051-8223
New York
NY
[en] Demagnetization ; High-temperature superconductors ; Magnetic noise ; Magnetic shielding ; Magnetization ; Superconducting films ; Superconducting magnets ; transverse magnetic field ; superconducting stacked tapes ; superconducting motor ; superconducting machines
[en] This paper investigates the practical effectiveness of employing superconducting stacked tapes to superconducting electric machinery. The use of superconducting bulks in various practical applications has been addressed extensively in the literature. However, in practice, dramatic decrease in magnetization would occur on superconducting bulks due to the crossed field effect. In our study, we employed the superconducting stacked tapes in a synchronous superconducting motor, which was designed and fabricated in our laboratory, aiming to lessen demagnetization due to crossed field effect in comparison with superconducting bulks. Applying the transverse AC field, the effects of frequency, amplitude, and number of cycles of the transverse magnetic field are discussed. Furthermore, a stack of 16 layers of superconducting tapes is modelled and the consequences of applying the crossed magnetic field on the sample are evaluated. The confrontation between experiments and simulation allows us to thoroughly understand the crossed field effects on stacked tapes. At the end, a preventive treatment, based on the shielding characteristic of superconductor and materials with high permeability, i.e. $mu$-metal and metalic glass, is suggested. On the other hand, the shielding feature of aforementioned materials will hinder the penetration of magnetic field and, consequently, reduction of the demagnetization will be attained.
Researchers ; Professionals
http://hdl.handle.net/2268/180535
10.1109/TASC.2014.2372873

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
06965587.pdfPublisher postprint860.38 kBRequest copy
Open access
paper.compressed.pdfAuthor postprint4.85 MBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.