Current Distribution in the Winding of a Superconducting Coil

The current distribution in a HTS coil winding which uses a wide superconducting tape reflects the history of the current sourcing, the local inhomogeneity and especially the local distribution of the radial component of the magnetic field inside the winding. We measured the radial component of the...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2008-06, Vol.18 (2), p.1597-1600
Main Authors: Usak, P., Polak, M., Kvitkovic, J., Mozola, P., Barnes, P.N., Levin, G.A.
Format: Article
Language:English
Subjects:
Applied sciences
Approximation
Coils (windings)
Cross sections
Current distribution
Current supplies
Electrical engineering. Electrical power engineering
Electromagnets
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
Hall effect devices
hall probe
High temperature superconductors
History
HTS tape
Magnetic field measurement
Magnetic fields
Magnetization
magnetization current
Materials
Mathematical analysis
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
superconducting coil
Superconducting coils
Superconducting devices
Superconducting films
Superconductivity
Various equipment and components
Winding
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The current distribution in a HTS coil winding which uses a wide superconducting tape reflects the history of the current sourcing, the local inhomogeneity and especially the local distribution of the radial component of the magnetic field inside the winding. We measured the radial component of the magnetic field in a rectangular frame around the winding cross-section using a thin Hall probe. From the mapped data of radial component, the current distribution in the cross-section of the winding was determined using an inverse calculation relating the known mapped data and unknown distribution of the current's circumferential component in the coil. The Tikhonov method of regularization was applied in the calculation. The exact current distribution in the winding cross-section was approximated by a dense mesh of discrete points. The results are expressed for different coil currents during a gradual ramping up and down.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2008.920589