Influence of the internal architecture of MgB2 conductors in the load line of magnet coils
Influence of the internal architecture of MgB2 conductors in the load line of magnet coils
MgB2 conductors have a multifilamentary superconducting structure encased in sheaths of different materials. Conductors with ferromagnetic sheaths, such as Ni or Fe, redistribute the magnetic field, which can affect the critical current of the superconducting filaments. The internal magnetic field distribution inside the conductor is not considered in general when modeling magnets, where the winding is considered as a bulk. The previous assumption can lead to discrepancies between the experimental results and numerical Ic predictions. Hence, a correct analysis of the effects of the ferromagnetic matrix in conductors will lead to savings in cost and weight of the coil design. In this work, the magnetic field distribution inside tapes with different architectures based on existing MgB2 tapes has been obtained. The magnetic field in the filaments is modeled focusing on the influence of the ferromagnetic matrix in the field distribution. The study is extended to round pancake coils based on the prototype coils aimed for its application in wind turbines in the SUPRAPOWER project.
Pelegrin Mosquera, Jorge
3a110c1a-ad88-4f90-bffc-7a0b5042f240
Falorio, Iole
65afc7a9-336b-4cce-a034-0c37df06e2c4
Young, Edward
d3a881b0-a564-41f5-9843-34ae86da360f
Yang, Yifeng
4cac858a-e0c0-4174-a839-05ca394fc51f
April 2016
Pelegrin Mosquera, Jorge
3a110c1a-ad88-4f90-bffc-7a0b5042f240
Falorio, Iole
65afc7a9-336b-4cce-a034-0c37df06e2c4
Young, Edward
d3a881b0-a564-41f5-9843-34ae86da360f
Yang, Yifeng
4cac858a-e0c0-4174-a839-05ca394fc51f
Pelegrin Mosquera, Jorge, Falorio, Iole, Young, Edward and Yang, Yifeng
(2016)
Influence of the internal architecture of MgB2 conductors in the load line of magnet coils.
IEEE Transactions on Applied Superconductivity, 26 (3).
(doi:10.1109/TASC.2016.2529851).
Abstract
MgB2 conductors have a multifilamentary superconducting structure encased in sheaths of different materials. Conductors with ferromagnetic sheaths, such as Ni or Fe, redistribute the magnetic field, which can affect the critical current of the superconducting filaments. The internal magnetic field distribution inside the conductor is not considered in general when modeling magnets, where the winding is considered as a bulk. The previous assumption can lead to discrepancies between the experimental results and numerical Ic predictions. Hence, a correct analysis of the effects of the ferromagnetic matrix in conductors will lead to savings in cost and weight of the coil design. In this work, the magnetic field distribution inside tapes with different architectures based on existing MgB2 tapes has been obtained. The magnetic field in the filaments is modeled focusing on the influence of the ferromagnetic matrix in the field distribution. The study is extended to round pancake coils based on the prototype coils aimed for its application in wind turbines in the SUPRAPOWER project.
More information
Accepted/In Press date: 19 January 2016
e-pub ahead of print date: 12 February 2016
Published date: April 2016
Identifiers
Local EPrints ID: 415989
URI: http://eprints.soton.ac.uk/id/eprint/415989
ISSN: 1051-8223
PURE UUID: 8ea2f41e-9956-4cb7-abd3-4151e006c4e8
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Date deposited: 29 Nov 2017 17:30
Last modified: 16 Mar 2024 02:44
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Author:
Jorge Pelegrin Mosquera
Author:
Iole Falorio
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