Cable-in-conduit conductors: lessons from the recent past for future developments with low and high temperature superconductors
Cable-in-conduit conductors: lessons from the recent past for future developments with low and high temperature superconductors
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DOI：
10.1088/0953-2048/28/5/053001
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发表时间：
2015-05
影响因子：
3.6
通讯作者：
L. Muzzi;G. D. Marzi;A. D. Zenobio;A. D. Corte
中科院分区：
文献类型：
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作者：
L. Muzzi;G. D. Marzi;A. D. Zenobio;A. D. Corte
我们回顾了用于聚变应用的高场超导电缆套管导体 (CICC) 的设计进展，特别关注最近关键实验的结果，这些实验导致了最先进的 CICC 技术：ITER 环形场和中央螺线管项目、EFDA 偶极导体开发项目、NHFML 混合磁体项目、EU-TF Alt 导体演示以及 CRPP React & Wind 扁平电缆测试。对于这些项目，CICC 设计的主要驱动力是缓解电磁负载循环导致的 Nb3Sn 导体性能下降。这是通过根据具体操作条件和项目要求正确选择电缆布局和导体几何形状来实现的。在所有情况下，限制电缆在导体护套内移动的必要性被认为是至关重要的。这里还讨论了 CICC 制造的主要方面，至少讨论了作者在 CICC 护套和布线工艺中获得的经验。最后，讨论了高温超导（HTS）电缆的最新技术：目前，这项技术仍处于起步阶段，但重大技术改进很可能最终导致高温超导 CICC 的广泛使用。
We review progress in the design of high field superconducting cable-in-conduit conductors (CICCs) for fusion applications, with special attention to the results of recent key experiments, leading to the state-of-the-art CICC technology: the ITER Toroidal Field and Central Solenoid programs, the EFDA Dipole conductor development program, the NHFML Hybrid Magnet project, the EU-TF Alt conductor demonstration, and the CRPP React & Wind flat cable test. For these projects, the main CICC design driver was the mitigation of Nb3Sn conductor performance degradation with electro-magnetic loading cycles. This was achieved by proper choice of cable layout and of conductor geometry, depending on the specific operating conditions and project requirements. In all cases, the necessity to limit cable movements inside the conductor jacket was identified to be of crucial importance. The main aspects of CICC manufacture are also discussed here, at least for what is the experience gained by the authors in both CICC jacketing and cabling processes. Finally, the state of the art of high-temperature superconducting (HTS) cables is discussed: at present, this technology is still in its infancy, but it is highly likely that major technological improvements could eventually lead to a widespread use of HTS CICCs.