应变下Nb<sub>3</sub>Sn基CICC温度分布变化模型

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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

Received: 28 November 2011 Published: 20 March 2014

PACS:	TM461
	TP392

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	Jiang Huawei
	Wu Songtao
	Li Guoping
	Zhao Yujuan

Cite this article:

Jiang Huawei,Wu Songtao,Li Guoping等. Temperature Distribution Model of Nb₃Sn-based CICC with Strain[J]. Transactions of China Electrotechnical Society, 2012, 27(7): 169-173.

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

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