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Unbalanced radial current flow simulation of no-insulation REBCO pancake coils during normal state transition
Superconductor Science and Technology ( IF 3.6 ) Pub Date : 2020-09-24 , DOI: 10.1088/1361-6668/aba79e
Thomas Kurauchi , So Noguchi

The no-insulation (NI) winding technique greatly enhances the thermal stability of REBCO (REBa 2 Cu 3 O x , RE = Rare Earth) pancake coils by avoiding burn-out and thermal runaway. The complicated electrical behaviors in NI REBCO pancake coils produce convoluted mechanical behaviors, so that some journal papers reported that high-field NI REBCO pancake coils were mechanically damaged during quench. To apply NI REBCO magnets for practical commercial use, it is important to understand the electromagnetic and mechanical behaviors of NI REBCO pancake coils in detail with both experiments and simulations. To clarify the electrical behaviors, a few simulation methods for NI REBCO pancake coils have been proposed; such as a simple RL parallel equivalent circuit. In these previous models, the radial current paths along the top and bottom of the pancake coils are represented as one current circuit path. However, since the radial current path of the bot...

中文翻译:

非绝缘REBCO薄煎饼线圈正常状态过渡期间的不平衡径向电流模拟

无绝缘(NI)绕组技术避免了烧尽和热失控,极大地提高了REBCO(REBa 2 Cu 3 O x,RE =稀土)煎饼卷的热稳定性。NI REBCO煎饼卷中复杂的电学行为会产生复杂的机械行为,因此一些期刊论文报道说,高磁场NI REBCO煎饼卷在淬火过程中受到了机械损坏。为了将NI REBCO磁铁用于商业用途,重要的是要通过实验和模拟来详细了解NI REBCO煎饼线圈的电磁和机械性能。为了阐明电学行为,提出了几种用于NI REBCO煎饼线圈的仿真方法。例如简单的RL并联等效电路。在这些先前的模型中,沿煎饼线圈顶部和底部的径向电流路径表示为一条电流电路路径。但是,由于机器人的径向电流路径...
更新日期:2020-09-25
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