Title :
AC losses in superconducting solenoids
Author :
Vinot, Emmanuel ; Donnier-Valentin, Guillaume ; Tixador, Pascal ; Meunier, Gerard
Author_Institution :
LEG-ENSIEG, Domaine Univ., Saint Martin D´´Heres, France
fDate :
6/1/2002 12:00:00 AM
Abstract :
This paper presents an analytical model to determine AC losses in monolayer and multilayer superconducting solenoids. The case of a transformer with several coils is also presented. This model is based on an infinite cylindrical geometry and the Bean model. Under this assumption, the electromagnetic variables distributions are determined and then instantaneous losses are simply calculated. For a monolayer coil the mean losses are given too. Then, analytical results are compared to numerical results performed with previous development in Flux3D (finite elements software). Finally, a comparison with measurements on a two-layer coil is presented.
Keywords :
Maxwell equations; critical current density (superconductivity); electromagnetic induction; finite element analysis; high-temperature superconductors; magnetic leakage; superconducting coils; AC losses; Bean model; Maxwell equation; current density; electromagnetic variables; finite element analysis; infinite cylindrical geometry; infinite solenoid; instantaneous losses; monolayer superconducting solenoids; multilayer superconducting solenoids; superconducting coils; transformer; Analytical models; Bean model; Finite element methods; Geometry; Nonhomogeneous media; Performance analysis; Software performance; Solenoids; Solid modeling; Superconducting coils;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2002.1020338
