铌三锡管内电缆导体交流损耗计算分析模型

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Abstract To solve the problem of alternating current (AC) loss mechanism for Nb₃Sn conductor with strain under the condition of high-current and transient magnetic field, research of AC loss calculation method is carried out in the transient electromagnetic field and wide range of strain. The mathematical model of the critical current with effect of strain is built. Moreover, the critical current density based on strain is introduced for the calculation of hysteresis loss power. Taking into account strain effects, the characteristic parameters are obtained, and the calculation technology of CICC AC loss power is obtained. By comparative analysis of simulation, it is found that the AC loss power calculation of the conductor with strain model is close to the actual project value. For rapid excitation, in particular plasma discharge and burst, strain model and the traditional algorithm is consistent. From the calculation of AC loss power, it can be seen that the relative error is less than 15%.

Key words： NbSn cable-in-conduit conductor(CICC) strain AC loss

Received: 08 October 2012 Published: 25 March 2014

PACS:	TM461
	TP392

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	Jiang Huawei
	Li Guoping
	Wu Songtao
	Zhao Yujuan
	Liu Jicheng

Cite this article:

Jiang Huawei,Li Guoping,Wu Songtao等. Calculation and Analysis Model of AC Loss forNb₃Sn-Based CICC[J]. Transactions of China Electrotechnical Society, 2013, 28(8): 20-25.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I8/20

[1] Hoenig M O. Internally cooled cabled supercon- ductors [J]. Cryogenics, 1980, 20(7): 373-389.
[2] Dresener L. Twenty years of cable-in-conduit conductors: 1975-1995[J]. Journal of Fusion Energy, 1995, 14(1): 3-12.
[3] Seeber B. Hand book of applied superconductivity [M]. London: Institute of Physics Publication, 1998.
[4] Ciazynski D. Review of Nb₃Sn conductors for ITER [J]. Fusion Engineering and Design, 2007, 82(2): 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 and Design, 2011, 86(1): 1-4.
[6] 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, 46(15): 1843-1846.
[7] Bruzzone P. AC losses and stability on large cable-in-conduit superconductors [J]. Physica C, 1998, 310(1-4): 240-246.
[8] Fang J, Weng P D, Chen Z M, et al. The ac losses measurement and analysis of superconducting NbTi CICC for HT-7U superconducting Tokamak [J]. Nuclear Science and Technology, 2003, 14(1): 76-82.
[9] 王秋良. 高磁场超导磁体科学[M]. 北京: 科学出版社. 2008.
[10] Bottura L, Bruzzone P, Lister J. B, et al. Computation of AC losses in the ITER magnets during fast field transients[J]. IEEE Transactions on Applied Super- conductivity, 2007, 17(2): 2438-2441.
[11] Egorov S. AC coupling losses in superconducting multistage cables with and without additional co-twisted copper strands [J]. Physica C, 1998, 310(1-4): 272-276.
[12] Van Lanen E P A, Van Nugteren J, Nijhuis A. Full-scale calculation of the coupling losses in ITER size cable-in-conduit conductors [J]. Superconductor Science and Technology, 2012, 25(2): 138-143.
[13] 蒋华伟, 武松涛. 基于应变CICC导体模拟设计模型研究[J]. 电子学报, 2010, 38(6): 1348-1338.
Jiang Huawei, Wu Songtao. Research of simulation design model for CICC based on strain[J] Acta Electronica Sinica, 2010, 38(6): 1348-1338.
[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 Songtao, Cheng Junsheng. Optimization model of a structural simulation design for a CICC [J]. Chinese Science Bulletin, 2011, 56(27): 2978-2983.
[15] 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: 计算科学, 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 Technology Science, 2012, 55(4): 1132-1139.
[16] Ekin J W. Strain scaling law for flux pinning in practical superconductors. Part 1: Basic relationship and application to Nb₃Sn conductors [J]. Cryogenics, 1980, 20(11): 611-624.
[17] Ten Haken B, Godeke A , Ten Kate H H J. The influence of compressive and tensile axial strain on the critical properties of Nb₃Sn conductors [J]. IEEE Transactions on Applied Superconductivity. 1995, 5(2): 1909-1912.
[18] Markiewicz W D. Invariant strain analysis of the critical temperature Tc of Nb₃Sn [J]. IEEE Transactions on Applied Superconductivity. 2005, 15(2): 3368-3371.
[19] Godeke A, Ten Haken B, Ten Kate H H J, et al. A general scaling relation for the critical current density in Nb₃Sn[J]. Superconductor Science and Technology, 2006, 19(10): 1-35.
[20] 方进. HT-7U管内电缆导体的稳定性理论及实验研究. 博士学位论文[D]. 合肥: 中国科学院等离子体物理研究所, 2002.