| 高温超导带材YBCO涂层导体的失超传播特性研究 |
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| 引用本文： | 李金成,张国民,靖立伟,刘琦,余卉. 高温超导带材YBCO涂层导体的失超传播特性研究[J]. 低温与超导, 2013, 41(5) |
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| 作者姓名： | 李金成 张国民 靖立伟 刘琦 余卉 |
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| 作者单位： | 1. 中国科学院超导重点试验室,北京100190;中国科学院电工研究所,北京100190;中国科学院大学,北京100049
2. 中国科学院超导重点试验室,北京100190;中国科学院电工研究所,北京100190 |
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| 摘 要： | 在液氮(77K)环境下对YBCO涂层导体的交、直流失超传播特性进行了研究。测量了交、直流情况下的失超传播速度以及最小失超能量;分析了超导带材的失超传播速度与传输电流的关系;推导了一维模型下的失超传播速度计算公式。结果表明,当带材的传输电流交流(有效值)与直流相同时,交、直流失超传播速度基本一致,交流的最小失超能略小,且随着传输电流的增大最小失超能间的差距加大。
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| 关 键 词： | 高温超导 YBCO 交流 失超传播速度 最小失超能 |
Study on the quench behavior of YBCO coated conductors |
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| Li Jincheng , Zhang Guomin , Jing Liwei , Liu Qi , Yu Hui. Study on the quench behavior of YBCO coated conductors[J]. Cryogenics and Superconductivity, 2013, 41(5) |
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| Authors: | Li Jincheng Zhang Guomin Jing Liwei Liu Qi Yu Hui |
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| Abstract: | AC and DC quench behavior of the YBCO coated conductor in liquid nitrogen(77K) was studied in this paper.The normal zone propagation velocity(NZPV) and the minimum quench energy(MQE) were both measured.The experimental results can be concluded that the NZPVS for DC and AC was basically the same with each other if the value of AC current(rms) was the same with the DC value.However,the MQE for the AC was smaller than the one for DC.And the difference became larger when the transport current increased. |
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| Keywords: | High temperature superconductivity(HTS) YBCO Alternative current(AC) Normal zone propagation velocity(NZPV) Minimum quench energy(MQE) |
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