Finite element analysis of magnetic field in high temperature bulk superconductor

Author

Chun, Yon-Do ; Kim, Youn-Hynn ; Lee, Ju ; Hong, Jung-Pyo ; Lee, Jong-Woo

Author_Institution

Dept. of Electr. Eng., Hanyang Univ., Seoul, South Korea

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

2000

Lastpage

2003

Abstract

This paper presents the analysis of magnetic field in high temperature bulk superconductor (HTSC). The macroscopic field equations constructed on the basis of the critical state model and levitation forces are simulated between permanent magnets (PM) and HTSC using a 3D axisymmetric finite element method. The force computations are obtained by using the Lorentz force equation. An iteration method is used to determine the current distribution of HTSC, because the J-E relation in HTSC is extremely nonlinear. The numerical results show that the presented method is comparatively accurate by comparing the measured levitation forces and the simulation ones

Keywords

barium compounds; finite element analysis; high-temperature superconductors; magnetic levitation; permanent magnets; yttrium compounds; 3D axisymmetric finite element method; Lorentz force equation; YBaCuO; critical state model; current distribution; finite element analysis; force computations; high temperature bulk superconductor; iteration method; levitation forces; macroscopic field equations; magnetic field; nonlinear J-E relation; permanent magnets; Computational modeling; Equations; Finite element methods; High temperature superconductors; Levitation; Lorentz covariance; Magnetic analysis; Magnetic fields; Permanent magnets; Superconducting magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920246

Filename

920246