Thermal runaway characteristics of Bi2212 coil for conduction-cooled SMES

被引：11
作者：
Kojima, Hiroki [1 ]
Hayakawa, Naoki
Noguchi, Shinki
Endo, Fumihiro
Hirano, Naoki
Nagaya, Shigeo
Okubo, Hitoshi
机构：
[1] Nagoya Univ, EcoTopia Sci Inst, Nagoya, Aichi 4648603, Japan
[2] Nagoya Univ, Dept Elect Engn & Comp Sci, Nagoya, Aichi 4648603, Japan
[3] Chuba Elect Power Co Inc, Nagoya, Aichi 4598522, Japan
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2007年 / 17卷 / 02期
关键词：
Bi2212; conduction-cooling; SMES; thermal runaway;
D O I：
10.1109/TASC.2007.898492
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：
In this paper, we investigated the thermal runaway characteristics of a conduction-cooled Bi2212 HTS coil with a 4 K-GM cryocooler system under compensating operation for load fluctuations. We measured the temporal evolutions of temperature and voltage distributions of the HTS solenoidal coil for typical current patterns of load fluctuation compensation at different ambient temperatures. On the basis of these experimental results, we constructed a thermal analysis model, and analysed the thermal runaway characteristics during and after the load fluctuation compensation. Based on the results of our experiments and the numerical simulations, we proposed criterion for the monitoring of an HTS SMES system during compensating operation for load fluctuations.
引用
收藏
页码：1959 / 1962
页数：4
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