Exploiting asymmetric wire critical current for the reduction of AC loss in HTS coil windings

被引：16
作者：
Jiang, Zhenan [1 ]
Endo, Natsumi [1 ,2 ]
Wimbush, Stuart C. [1 ]
Brooks, Justin [1 ]
Song, Wenjuan [1 ,3 ]
Badcock, Rodney A. [1 ]
Miyagi, Daisuke [4 ]
Tsuda, Makoto [2 ]
机构：
[1] Victoria Univ Wellington, Robinson Res Inst, Wellington 6140, New Zealand
[2] Tohoku Univ, Grad Sch Engn, Dept Elect Engn, Sendai, Miyagi 9808579, Japan
[3] Beijing Jiaotong Univ, Sch Elect Engn, Beijing 100044, Peoples R China
[4] Chiba Univ, Dept Elect & Elect Engn, Chiba 2638522, Japan
来源：
JOURNAL OF PHYSICS COMMUNICATIONS | 2019年 / 3卷 / 09期
关键词：
hybrid coil winding; HTS coils; asymmetric critical current; AC loss; REBCO;
D O I：
10.1088/2399-6528/ab4437
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Critical current and AC loss in coil windings are two important factors for various HTS applications. Many coated conductors exhibit asymmetry in the variation of the critical current with magnetic field angle. This asymmetry results in different coil critical current values depending on the orientation of the conductors in the coil windings. We report critical current and AC loss results at 77 K and 65 K for three hybrid coil assemblies which have a common central winding and different arrangements of the end windings. We found a difference greater than 13% in both the critical current and the AC loss results for the different arrangements. The results imply that if we wind coil assemblies smartly even using the same materials and the same design, we can not only improve critical current but also reduce AC loss significantly.
引用
收藏
页数：10
相关论文
共 34 条
[11]   Modeling and Comparison of In-Field Critical Current Density Anisotropy in High-Temperature Superconducting (HTS) Coated Conductors [J].
Hu, Di ;
Ainslie, Mark D. ;
Raine, Mark J. ;
Hampshire, Damian P. ;
Zou, Jin .
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2016, 26 (03)
[12]  
Iwakuma M., 2015, IEEE Trans. Appl. Supercond, V25
[13]   AC loss measurements in HTS coil assemblies with hybrid coil structures [J].
Jiang, Zhenan ;
Long, Nicholas J. ;
Staines, Mike ;
Badcock, Rodney A. ;
Bumby, Chris W. ;
Buckley, Robert G. ;
Amemiya, Naoyuki .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2016, 29 (09)
[14]   AC Loss Measurements in a Hybrid REBCO/BSCCO Coil Assembly [J].
Jiang, Zhenan ;
Staines, Mike ;
Long, Nicholas J. ;
Badcock, Rodney A. ;
Bumby, Chris W. ;
Buckley, Robert G. ;
Song, W. ;
Amemiya, Naoyuki .
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2017, 27 (06)
[15]   Dynamic resistance of a high-Tc coated conductor wire in a perpendicular magnetic field at 77K [J].
Jiang, Zhenan ;
Toyomoto, Ryuki ;
Amemiya, Naoyuki ;
Zhang, Xingyou ;
Bumby, Chris W. .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2017, 30 (03)
[16]   AC loss measurements in pancake coils wound with 2G tapes and Roebel cable: dependence on spacing between turns/strands [J].
Jiang, Zhenan ;
Long, N. J. ;
Badcock, R. A. ;
Staines, Mike ;
Slade, R. A. ;
Caplin, A. D. ;
Amemiya, Naoyuki .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2012, 25 (03)
[17]   CRITICAL PERSISTENT CURRENTS IN HARD SUPERCONDUCTORS [J].
KIM, YB ;
HEMPSTEAD, CF ;
STRNAD, AR .
PHYSICAL REVIEW LETTERS, 1962, 9 (07) :306-&
[18]   Electrical measurements of AC losses in high temperature superconducting coils at variable temperatures [J].
Nguyen, D. N. ;
Kim, C. H. ;
Kim, J. H. ;
Pamidi, S. ;
Ashworth, S. P. .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2013, 26 (09)
[19]   AC loss in ReBCO pancake coils and stacks of them: modelling and measurement [J].
Pardo, E. ;
Souc, J. ;
Kovac, J. .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2012, 25 (03)
[20]   Low-magnetic-field dependence and anisotropy of the critical current density in coated conductors [J].
Pardo, E. ;
Vojenciak, M. ;
Goemoery, F. ;
Souc, J. .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2011, 24 (06)
1234