Turn-to-Turn Contact Resistance Measurement of No-Insulation REBCO Pancake Coil: External Field Dependence
Turn-to-Turn Contact Resistance Measurement of No-Insulation REBCO Pancake Coil: External Field Dependence
复制标题
DOI：
10.1109/tasc.2021.3070232
复制
发表时间：
2021-08
影响因子：
1.8
通讯作者：
S. Noguchi;Shunpei Mori;Takanobu Mato;Takahiro Tatsuta;Daisuke Nishikawa;Kohei Miyamoto;Ryota Inoue;H. Ueda;S. Kim
中科院分区：
文献类型：
--
作者：
S. Noguchi;Shunpei Mori;Takanobu Mato;Takahiro Tatsuta;Daisuke Nishikawa;Kohei Miyamoto;Ryota Inoue;H. Ueda;S. Kim
无绝缘高温超导（HTS）马奈的特性主要取决于匝间接触电阻的大小。提出了几种增加匝间接触电阻的技术。在仿真中还研究了匝间接触电阻与磁体稳定性的关系。虽然之前的匝间接触电阻测量只是突然放电的方法，但我们提出了一种低频交流电流（LFAC）测量方法。利用我们提出的方法，可以测量各种条件下的匝间接触电阻。在之前的一篇论文中，我们测量了直流电流对单个煎饼线圈的充电。本文采用LFAC法，对单根煎饼线圈施加1 ~ 3t外场时，匝间接触电阻进行了测量。测量了线圈的应变，并讨论了匝间接触电阻与线圈应变的关系。
The characteristics of no-insulation high-temperature superconducting (HTS) manet is dominated by the magnitude of the turn-to-turn contact resistance. A few techniques have been proposed to increase the turn-to-turn contact resistance. The relation between the turn-to-turn contact resistance and the magnet stability has also been investigated in simulations. Although the turn-to-turn contact resistance measurement was only the sudden-discharging method before, we proposed a low-frequency-AC current (LFAC) method. Using our proposed method, it is possible to measure the turn-to-turn contact resistance under various conditions. In a previous paper, we measured it when charging DC current to a single pancake coil. In this paper, the turn-to-turn contact resistance was measured by the LFAC method when an external field of 1–3 T was applied to a single pancake coil. The coil strain was also measured, and the relation of the turn-to-turn contact resistance and the coil strain was also discussed.