Analysis of magnetic field geometry effects for the design of HTS devices for AC power applications

被引：2

作者：

Grilli, F

Martini, L

Stavrev, S

Dutoit, B

Brambilla, R

机构：

[1] Swiss Fed Inst Technol, CH-1015 Lausanne, Switzerland

[2] CESI SpA, I-20134 Milan, Italy

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2005年 / 15卷 / 02期

关键词：

AC losses; finite element method; high temperature superconductors; magnetic field distribution;

D O I：

10.1109/TASC.2005.849455

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The performance of HTS devices is strongly influenced by local values of the current and field distributions. In this paper, we investigate the influence of the magnetic field and the geometrical configuration on the loss behavior of a 200 kVA FCL prototype, composed by Bi-2223/Ag tapes wound around a cylindrical support. The investigation is performed by means of finite element computations, with the use of an axisymmetric 2D A-V formulation for taking into account the cylindrical geometry. The electrical behavior of the superconductor is described by means of a B-dependent E-J power-law relation, derived from experimental measurements with a field of different orientation. Several geometrical configurations are analyzed and compared, in order to find the ones with the lowest AC loss.

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收藏

页码：2074 / 2077

页数：4

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