应变下Nb<sub>3</sub>Sn基CICC温度分布变化模型

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摘要分流温度和温度裕度是管内电缆导体(CICC)稳定运行的关键因素, 为应对10T以上的磁场冲击, 国际热核聚变反应堆ITER 装置上的CS和TF等已采用铌三锡(Nb₃Sn)导体, 但缺乏应变效应对分流温度和温度裕度分布影响的研究。本文根据在SULTAN对TF样品分流温度和温度裕度的测量数据, 首先在无应变下, 对由分流温度和温度裕度的改善使得TFCN导体的稳定性得到提高进行分析。然后用周期载荷模拟应变, 在600周期和1000周期时, 分析CICC分流温度和温度裕度的恶化情况。最后由假设条件, 推理并获得分流温度随周期载荷变化的双对数分布模型, 该模型能很好描述TFCN导体样品中由周期载荷导致的弯曲应变所产生的性能降级情况。

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	蒋华伟
	武松涛
	李国平
	赵玉娟

关键词 ：应变, CICC, 分流温度, 温度裕度

Abstract：The current sharing temperature and temperature margin are key factors to effect the steady operation of cable-in-conduit conductor (CICC). In response to impact of magnet fields above 10T, the Nb₃Sn-based CICC has been applied to the central solenoid and toroidal field of international thermal-nuclear experimental reactor. However, the current sharing temperature and temperature margin of Nb₃Sn-based conductor with strain ate not been explored. According to the measured data of the current sharing temperature and temperature margin of toroidal field sample in SULTAN, the CICC stability increase caused by improvement of the current sharing temperature and temperature margin is analyzed without strain. Then, with the periodic load to simulate strain, the deterioration of the current sharing temperature and temperature margin is obtained after 600 cycles and 1000 cycles. Finally, based on assumptions and reasoning, the evolution model of current sharing temperature and temperature margin is built with double logarithm, which can well describe the performance degradation of the Chinese toroidal field sample (TFCN) resulted from bending strain by the periodic load.

Key words： Strain cable-in-conduit conductor current sharing temperature temperature margin

收稿日期: 2011-11-28 出版日期: 2014-03-20

PACS:	TM461
	TP392

基金资助:国际科技合作重点项目计划(2004CB720704)和河南省高等学校青年骨干教师资助计划(2010GGJS-088)资助项目。

作者简介: 蒋华伟男, 1970年生, 博士, 副教授, 硕士生导师, 研究方向为CICC导体结构模型设计、图像处理。武松涛男, 1962年生, 博士, 研究员, 博士生导师, 研究方向为大型超导电缆及磁体技术的应用。

引用本文:

蒋华伟, 武松涛, 李国平, 赵玉娟. 应变下Nb₃Sn基CICC温度分布变化模型[J]. 电工技术学报, 2012, 27(7): 169-173. Jiang Huawei, Wu Songtao, Li Guoping, Zhao Yujuan. Temperature Distribution Model of Nb₃Sn-based CICC with Strain. Transactions of China Electrotechnical Society, 2012, 27(7): 169-173.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2012/V27/I7/169

[1] Dresener L. Twenty years of cable-in-conduit conductors :1975-1995[J]. Journal of Fusion Eneryg, 1995, 14(1): 3-12.
[2] Seeber B. Hand book of applied superconductivity[M]. London: Institute of Physics Publication, 1998.
[3] Yan L G. Recent progress of superconducting magnet technology in China[J]. IEEE Transaction on Applied Superconductivity, 2010, 20(3): 123-134.
[4] Ciazynski D. Review of Nb₃Snsuperconductors for ITER [J]. Fusion Engineering Design, 2007, 82(2-3): 488-497.
[5] Liu B, Wu Y, Liu F, et al. Axial strain characterization of the Nb₃Sn strand used for China's TF conductor [J]. Fusion Engineering Design, 2011, 86(1): 1-4.
[6] 刘方, 翁佩德, 武玉, 等. 超导股线Nb₃Sn的性能测试研究[J]. 低温物理学报, 2007, 29(1): 68-72.
Liu Fang, Weng Peide, Wu Yu, et al. Study on the performance test of superconducting strand Nb₃Sn [J]. Chinese Journal of Low Temperature Physics, 2007, 29(1): 68-72.
[7] Zhang P X, Liang M, Tang X D, et al. Strain influence on Jc behavior of Nb₃Sn multifilamentary strands fabricated by internal tin process for ITER[J]. Physica C, 2008, 468(15-20): 1843-1846.
[8] 梁明, 张平祥, 唐先德. 应变对Nb₃Sn多芯股线载流能力的影响析[J]. 金属学报, 2009, 45(2): 223-226
Liang Ming, Zhang Pingxiang, Tang Xiande. Strain effect on transport properties of Nb₃Sn multifilament strands prepared by internal tin toute[J]. Acta Metallurgica Sinica, 2009, 45(2): 223-226.
[9] 程军胜, 王秋良, 戴银明. 低温超导体Nb₃Sn扩散热处理中显微组织的表征与分析[J] .稀有金属材料与工程, 2008, 37(S4): 189-192.
Cheng Junsheng, Wang Qiuliang, Dai Yinming. Characterization and analysis of microstructures of Nb₃Sn multifilamentary superconductors during diffusion treatment by bronze route [J]. Rare Metal Materials and Engineering, 2008, 37(S4): 189-192.
[10] 王秋良. 高磁场超导磁体科学[M]. 北京: 科学出版社. 2008.
[11] Breschi M, Corato V, Fiamozzi C, et al. Analysis of transverse resistance measurements in Nb₃Sn superconducting wires[J]. IEEE Transaction on Applied Superconductivity, 2011, 21(3): 2372-2375.
[12] Miyoshi Y, Ilyin Y, Abbas, et al. AC Loss, inter-strand resistance, and mechanical properties of an option-II ITER CICC up to 30, 000 cycles in the press[J]. IEEE Transactions on Applied Superconductivity, 2011, 21(3): 1944-1947.
[13] 蒋华伟, 武松涛. 应变下管内电缆导体交流损耗计算模型[J]. 中国科学: 技术科学, 2012, 42(5): 576-583.
Jiang Huawei, Wu Songtao. Calculation model of AC loss for CICC(cable-in-conduit conductor)based on strain[J]. Science China Technological Sciences, 2012, 55(4): 1132-1139.
[14] 蒋华伟, 武松涛, 成俊生. 管内电缆导体结构模拟设计优化模型[J]. 科学通报, 2011, 56(6): 440-445.
Jiang Huawei, Wu Sogntao, Cheng Junsheng. Optimization model of a structural simulation design for a CICC[J]. Chinese Science Bulletin, 2011, 56(27): 2978-2983.
[15] Bottura L, Luongo C. Superconductors, stability in forced flow. In: John G W, ed. wiley encyclopedia of electrical and electronic engineering[M]. Milton: John Wiley & Sons, 1999.
[16] 方进. HT-7U管内电缆导体的稳定性理论及实验研究[D]. 合肥: 中国科学院等离子体物理研究所, 2002.
[17] Wesche R, Bagnasco M, Bruzzone P, et al. Results of conductor testing in SULTAN: a review[C]. Proceedings of the IEE WAMSDO-Accelerator Magnet Superconductors, Design and Optimization, 2009: 68-77.