Numerical simulation for AC losses of HTS tapes in combined alternating transport current and external AC magnetic field with phase shift

Author

Kajikawa, Kazuhiro ; Takenaka, Atsushi ; Kawasaki, Kenichi ; Iwakuma, Masataka ; Funaki, Kazuo

Author_Institution

Res. Inst. of Supercond., Kyushu Univ., Fukuoka, Japan

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

2240

Lastpage

2243

Abstract

AC losses are numerically evaluated for a Bi-2223 tape-shaped wire in combined alternating transport current and external AC magnetic field with a phase shift. It is considered that the external field is applied only parallel to the wide surface of tape. Since the multifilamentary wire without twisting is assumed, a solenoidal coil is simplified as a homogeneous superconducting sheet with infinitely wide surfaces. The electromagnetic quantities are numerically calculated by solving Maxwell´s equations and the voltage-current characteristics represented by the power law simultaneously. The calculations of AC losses are carried out as a function of both amplitudes of transport current and external magnetic field. The obtained results are plotted on a master curve for the maximum magnetic field applied to the wire

Keywords

Maxwell equations; bismuth compounds; calcium compounds; copper compounds; high-temperature superconductors; lead compounds; losses; magnetic fields; multifilamentary superconductors; numerical analysis; solenoids; strontium compounds; superconducting coils; superconducting tapes; (BiPb)₂Sr₂Ca₂Cu₃O ₈; (BiPb)₂Sr₂Ca₂Cu₃O ₈ HTSC tapes; AC losses; Bi-2223 tape-shaped wire; Maxwell´s equations; alternating transport current; electromagnetic quantities; external AC magnetic field; homogeneous superconducting sheet; multifilamentary wire; numerical simulation; phase shift; power law; solenoidal coil; transport current; voltage-current characteristics; High temperature superconductors; Loss measurement; Magnetic fields; Multifilamentary superconductors; Numerical simulation; Superconducting cables; Superconducting coils; Superconducting filaments and wires; Superconducting films; Voltage;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920305

Filename

920305