Hahn Seungyong, Kim Youngjae, Ling Jiayin, Voccio John, Park Dong Keun, Bascuñán Juan, Shin Hyun-Jin, Lee Haigun, Iwasa Yukikazu
Francis Bitter Magnet Laboratory, MIT, Cambridge, MA 02139 USA.
Francis Bitter Magnet Laboratory, MIT, Cambridge, MA 02139 USA. He is now with Samsung Electronics, Suwon 135-239, Korea.
IEEE Trans Appl Supercond. 2013 Jun;23(3). doi: 10.1109/tasc.2013.2240756. Epub 2013 Jan 16.
This paper presents experimental and analytical studies on the time-varying behavior of an NI (no-insulation) high-temperature superconductor pancake coil, alone or magnetically coupled to an external coil. An NI coil and another insulated coil (as an external), both of identical winding i.d. and number of turns, were fabricated. Another external coil used in this study was a 300-mm/5-T low-temperature superconductor magnet. An equivalent circuit model is proposed to simulate the NI coil, and the external coil, under time-varying conditions. Good agreement between experiment and simulation shows that the proposed equivalent circuit model is valid to characterize the time-varying electromagnetic behavior of an NI coil, alone or magnetically coupled to an external coil.
本文介绍了关于无绝缘（NI）高温超导饼式线圈时变行为的实验和分析研究，该线圈单独存在或与外部线圈磁耦合。制作了一个内径绕组和匝数均相同的NI线圈以及另一个绝缘线圈（作为外部线圈）。本研究中使用的另一个外部线圈是一个300毫米/5特斯拉的低温超导磁体。提出了一个等效电路模型来模拟时变条件下的NI线圈和外部线圈。实验与模拟结果的良好一致性表明，所提出的等效电路模型对于表征NI线圈单独存在或与外部线圈磁耦合时的时变电磁行为是有效的。
