考虑热积聚的超导带材动态电阻电压随时间的变化

IF 5.6 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Chao Li , Yuying Xing , Ying Xin , Bin Li , Francesco Grilli
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引用次数: 1

摘要

在磁通泵、电机和超导磁体中,当背景中存在振荡磁场时,高温超导体(HTS)涂层导体经常携带直流传输电流。在这种情况下,动态电阻会产生有趣的影响,这会影响超导器件的工作性能:热量积累会导致HTS带的温度升高,动态电阻电压也会相应变化。本文通过考虑热效应的数值模拟,探讨了动态电阻电压随时间的发展。在与实验结果进行验证后,本工作研究了高温超导带结构的几个因素对动态电阻随时间变化的影响,从而为更好地理解高温超导带在外部磁场下的随时间变化行为提供了见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Time-dependent development of dynamic resistance voltage of superconducting tape considering heat accumulation

In flux pumps, motors and superconducting magnets, the high temperature superconductor (HTS) coated conductor frequently carries a DC transport current when an oscillating magnetic field is present in the background. Under this circumstance, the interesting effect of dynamic resistance takes place, which can affect the operating performance of superconducting devices: heat accumulation can contribute to the rising temperature of the HTS tape and the dynamic resistance voltage can change accordingly. This article explores the time-dependent development of the dynamic resistance voltage using a numerical modeling considering the thermal effects. After a validation against experimental results, this work investigates the effects of several factors on the structure of the HTS tape on the time-dependent development of the dynamic resistance, thus providing insights toward a better understanding of the time-dependent behavior of HTS tapes under external magnetic fields.

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