The SMES Model Coil
The SMES Model Coil
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SMES 模型线圈
DOI：
10.2221/jcsj.33.460
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
T. Satow
中科院分区：
文献类型：
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作者：
S. Hanai;K. Nakamoto;Nobuji Takahashi;H. Takano;M. Tezuka;T. Hamajima;K. Shinoda;Toru Minemura;T. Himeno;I. Takano;T. Satow
在480MJ/20 MW SMES中试装置的组件技术开发中，制造了SMES模型线圈作为研发项目。该线圈由四个双薄饼绕组组成。线圈的直径相同，但煎饼的数量是中小企业试点工厂所需数量的一半。双层薄饼之间的NbTi电缆导管导体和超导接头由超临界氦强制流动冷却。在制造之前，通过实际导线的全尺寸短样和定标导线的定标短样来测量导管中电缆的各种特性。定标的短样的临界电流与由一股导体计算的临界电流一致。全尺寸导体中任意双氧化物包覆的线束之间的阻抗比两个镀铬线束的阻抗要小，这表明在另一个线圈中具有良好的稳定性。据估计，氧化物涂层导体将具有很高的稳定性。通过模型线圈的制作，验证了为小规模100kWh SMES装置制造大型强流线圈的可行性。
A SMES model coil was fabricated as R & D item in the development of component technologies for a 480MJ/20MW SMES pilot plant. The coil consists of four double-pancake windings. The coil is the same diameter but half the number of pancakes that will be needed for a SMES pilot plant. The NbTi cable-in-conduit conductor and superconducting joints between the double pancakes are cooled by a forced flow of supercritical helium. Prior to fabrication, various characteristics of the cable-in-conduit were measured by full-sized short samples from actual conductors and by scaled short samples from scaled conductors. The critical current of the scaled short samples was in agreement with that calculated from one strand of the conductor. The impedance between arbitrary dual-oxide coated strands in the full-size conductor was measured to be smaller than that obtained from two Cr-plated strands, which showed a good degree of stability in another coil. It was estimated that oxide-coated conductors would have high stability. Through fabrication of a model coil, it was demonstrated that a large forced-flow coil for a small-scale 100kWh SMES device could be manufactured.