Influencing Factors on Quench and Recovery of YBCO Tapes for DC Superconducting Fault Current Limiter
Influencing Factors on Quench and Recovery of YBCO Tapes for DC Superconducting Fault Current Limiter
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DOI：
10.1109/tasc.2018.2887336
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发表时间：
2019-03
影响因子：
1.8
通讯作者：
B. Xiang;M. Junaid;Lei Gao;Zhiyuan Liu;Yingsan Geng;Jianhua Wang;S. Yanabu
中科院分区：
文献类型：
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作者：
B. Xiang;M. Junaid;Lei Gao;Zhiyuan Liu;Yingsan Geng;Jianhua Wang;S. Yanabu
失超和恢复特性是直流电阻型超导故障限流器的重要特性。在正常工作状态下，超导带材保持超导状态，无功率损耗。然而，如果对超导带材有热扰动能量的冲击，则带材可能会淬火，并且有时一旦它们的温度过高，甚至断裂。在热扰动后，超导带可以再次恢复到超导状态。基于热传导理论，提出了一种分析YBa 2Cu 3 O 7-δ超导带材失超传播和回复特性的数值分析方法。本文的目的是获得影响因素，如热扰动的大小，传输电流，稳定层的材料和冷却失超，恢复性能的直流电阻型SFCL。数值分析结果表明，随着传输电流和热扰动幅值的增加，带的温度和电压都增加。与不锈钢稳定层相比，铜稳定层的淬火扩展速度更快，恢复时间更短。
Quench and recovery characteristics are the most important characteristics of dc resistive type superconducting fault current limiters (SFCLs). In the normal state, the superconducting tapes of SFCLs stay in superconducting state without power loss. However, if there is a thermal disturbance energy impact to the superconducting tapes, the tapes may be quenched, and sometimes even break once their temperature is too high. After the thermal disturbance, the tapes may recover to superconducting state again. A numerical analysis method was proposed to analyze quench propagation and recovery characteristics of the YBa2Cu3O7-δ tapes based on thermal conduction theory. The objective of this paper is to obtain the influencing factors such as magnitude of thermal disturbance, transport current, material of the stabilized layer and cooling on quench, and recovery properties of dc resistive type SFCL. Numerical analysis results show that the temperature and voltage of the tape increased while the transport current through the tape and the magnitude of thermal disturbance increased. The quench propagation velocity was higher and the recovery time was shorter for copper stabilized layers than stainless steel stabilized layers.