Computational comparison of AC losses in different kinds of HTS composite conductors

Author

Paasi, J. ; Lahtinen, M.

Author_Institution

Lab. of Electr. & Magnetism, Tampere Univ. of Technol., Finland

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

322

Lastpage

325

Abstract

AC losses of different kinds of available or anticipated HTS composite conductors were computed by using a magnetic diffusion model. The model takes into account the real current density-electric field characteristic of the superconductor and the spatial dependence of the current density, The computation was carried out for self-field losses due to transport current ramps and for magnetization losses in magnet operation due to ramping external magnetic field. Special attention was paid to filament coupling in various conductor models at different ramp rates.

Keywords

composite superconductors; critical current density (superconductivity); high-temperature superconductors; losses; superconducting magnet energy storage; superconducting magnets; superconducting tapes; AC losses; HTS composite conductors; SMES; conductor models; current density-electric field characteristic; filament coupling; magnet operation; magnetic diffusion model; magnetization losses; ramping external magnetic field; self-field losses; spatial dependence; transport current ramps; Conductors; Current density; High temperature superconductors; Magnetic fields; Magnetic flux; Magnetic separation; Superconducting filaments and wires; Superconducting magnetic energy storage; Superconducting magnets; Superconducting materials;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.614495

Filename

614495