Investigation of HTS Racetrack Coil Without Turn-to-Turn Insulation for Superconducting Rotating Machines

被引：117
|
作者：
Kim, Young-Gyun [1 ]
Hahn, Seungyong [2 ]
Kim, Kwang Lok [1 ]
Kwon, Oh Jun [1 ]
Lee, Haigun [1 ]
机构：
[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea
[2] MIT, Francis Bitter Magnet Lab, Cambridge, MA 02139 USA
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2012年 / 22卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
No-insulation; protection-free; racetrack coil; superconducting rotating machine; PROPAGATION; STABILITY;
D O I：
10.1109/TASC.2011.2181931
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：
This paper reports a study of two HTS racetrack coils wound with GdBCO coated conductors, one without turn-to-turn insulation and the other with Nomex insulation. The coils were characterized by charge-discharge, over-current, and sudden discharge tests. Thermal and electrical characteristics of the GdBCO racetrack coil without insulation outperformed the insulated one. The test results confirmed that although the coil without insulation has a slow charging/discharging time constant, the no-insulation winding technique may enable a compact and protection-free racetrack-typed coil with enhanced mechanical integrity as well as better thermal and electrical stabilities.
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页数：4
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