AC Losses of Superconducting Racetrack Coil in Various Magnetic Conditions

被引：31

作者：

Hong, Z.

Yuan, W. ^{[1
]}

Ainslie, M. ^{[1
]}

Yan, Y. ^{[1
]}

Pei, R. ^{[1
]}

Coombs, T. A. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2011年 / 21卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

AC loss; coated conductors; critical state; formulation; Numerical model; CRITICAL-STATE;

D O I：

10.1109/TASC.2010.2084065

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：

High-temperature superconductors have created the opportunity for a step change in the technology of power applications. Racetrack superconducting coils made from YBCO coated conductors have been used in several engineering applications including SMES, rotor or stator windings of electric machines. AC loss is one of the most important factors that determine the design and performance of superconducting devices. In this paper, a numerical model is developed to calculate the AC losses in superconducting racetrack coils in different magnetic conditions. This paper first discusses the AC losses of the coils in self-field or external field only. It then goes to investigate the AC losses of the coils being exposed to AC ripple field and a DC background field. Finally, the AC losses of the coils carrying DC current and being exposed to AC field are calculated. These two scenarios correspond to using superconducting coils as the rotor field winding of an electric machine.

引用

页码：2466 / 2469

页数：4

共 11 条

[1] Numerical analysis and finite element modelling of an HTS synchronous motor [J].