Title :
Circuit coupling method applied to bulk superconductors
Author :
Vinot, Emmanuel ; Leconte, Vincent ; Meunier, Gérard ; Tixador, Pascal
Author_Institution :
LEF/ENSIEG, Domaine Univ., St. Martin d´´Heres, France
fDate :
11/1/2002 12:00:00 AM
Abstract :
This paper presents a new finite-element method for including a bulk superconductor in an electrical circuit. The method solves simultaneously the finite-element equations of Aψ formulation and the circuit equations. At the same time, a power law defines the superconducting properties. The method then compares the classical homogeneous model of a Bi-2223 tape to a multifilament model. The results of a simulation of conductors carrying alternative current while subjected to an external ac field are presented.
Keywords :
bismuth compounds; calcium compounds; finite element analysis; high-temperature superconductors; losses; strontium compounds; superconducting coils; superconducting tapes; Aψ formulation; Bi2Sr2Ca2Cu3Ox; bulk superconductors; circuit coupling method; circuit equations; finite-element method; high-temperature superconductors; homogeneous model; multifilament model; power law; superconducting device; superconducting properties; superconducting tape; Bean model; Conductors; Coupling circuits; Electric potential; Equations; Finite element methods; Multifilamentary superconductors; Superconducting magnets; Superconductivity; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.804802
