Demonstration of kA-Class Rutherford Cables Using MgB2 Wires for an Energy Storage Device Suitable for a Liquid Hydrogen Indirect Cooling
Demonstration of kA-Class Rutherford Cables Using MgB2 Wires for an Energy Storage Device Suitable for a Liquid Hydrogen Indirect Cooling
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使用 MgB2 线的 kA 级卢瑟福电缆演示适用于液氢间接冷却的储能装置
DOI：
10.1109/tasc.2022.3154339
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发表时间：
2022
影响因子：
1.8
通讯作者：
A. Matsumoto
中科院分区：
文献类型：
--
作者：
T. Yagai ; M. Takahashi ; R. Inomata ; T. Takao ; T. Onji ; T. Komagome ; Y. Makida ; T. Shintomi ; N. Hirano ; T. Hamajima ; A. Kikuchi ; G. Nishijima ; A. Matsumoto
超导磁能存储（SMES）在潜在的其他存储设备中一直是一个很有前途的选择，以支持全球范围内将更多可再生能源引入公用事业电网的需求。如果将mgb2链用于中小企业，可再生能源之一的液氢不仅可以作为清洁能源，还可以作为超导装置的冷却剂。在大型线圈设计中，考虑到线圈内部的输运电流是不断变化的，机械易碎的多丝股具有交流损耗小的特点，因此应采用多丝股。为了实现这样的设计，我们设计并制作了大电流交流用卢瑟福电缆，并进行了可行性评估的实验测试。基于商用高机械强度mgb2strand的最新测试结果和开发，以及本次研究开发的液氦温度下ka级电缆，用于外推氢温度下的临界电流（Ic），我们认为该方法具有制造具有MJ容量的实用SMES器件的潜力。本文介绍了世界上最大容量交流电缆的设计和测试结果，包括几种背景场强下的临界电流评估，并讨论了电缆的稳定性和电流再分配。
Superconducting Magnetic Energy Storage (SMES) has been a promising option amongst potential other storage devices to support world-wide demands for introducing more renewables into the utility grid. If MgB2strands are used for SMES, liquid hydrogen, one of the renewables, could be used not only as a clean energy source but also as a coolant for the superconducting device. For large-scale coil design, mechanically fragile multi-filament strands should be used for their low AC loss feature considering that the transport current inside the coil would be always changing. To realize such a design, we designed and fabricated the large current capacity for AC-use Rutherford cable, together with experimental tests for its feasibility assessment. Based on the latest test results and development of commercial MgB2strands with high mechanical strength, and this research and development of kA-class cable at liquid helium temperature for extrapolating the critical current (Ic) at hydrogen temperature, we believe this approach has the potential to make a practical SMES device with MJ capacity. In this paper, the world's largest-capacity AC cable design and test results including critical current evaluation under several background field strengths are shown, and the stability and current re-distribution are also discussed.