Suitable Structure of Triaxial HTS Cable With Low Thermal Conductive Layer for Increasing Power Transmission Cable Length
Suitable Structure of Triaxial HTS Cable With Low Thermal Conductive Layer for Increasing Power Transmission Cable Length
复制标题
低导热层三轴高温超导电缆适合增加输电电缆长度的结构
DOI：
10.1109/tasc.2021.3125996
复制
发表时间：
2022
影响因子：
1.8
通讯作者：
Tsuda Makoto
中科院分区：
文献类型：
--
作者：
Endo Natsumi;Nagasaki Yoh;Miyagi Daisuke;Tsuda Makoto
研究了在三轴高温超导（HTS）电缆中插入低导热层（LTCL）以实现长长度三轴HTS电缆的有效性。通过分析电缆外部侵入热与电缆交流损耗、温度分布、电缆内部最高温度之间的关系，确定了长距离三轴高温超导电缆中LTCL的合适插入位置和厚度。分析结果表明，在高温超导层内插入低温超导电缆对长三轴高温超导电缆是有效的。此外，通过插入LTCL，在抑制从外部制冷剂到内部制冷剂的热传导和增加来自电缆外部的侵入热的效果之间存在折衷关系。通过考虑这种折衷关系，可以得到合适的LTCL厚度。
We have investigated the effectiveness of the insertion of a low thermal conductive layer (LTCL) in a triaxial high temperature superconducting (HTS) cable to realize a long-length triaxial HTS cable. This article analyzed the relationship among intrusion heat from outside of the cable, ac loss, temperature distribution, and the maximum temperature within a triaxial HTS cable with the LTCL to clarify the suitable insertion position and thickness of the LTCL for a long-length triaxial HTS cable. Analysis results showed that inserting the LTCL inside the HTS layers was effective for the long-length triaxial HTS cable. In addition, there was a tradeoff relationship between the effects of suppressing the thermal conduction from the outer refrigerant to the inner refrigerant and increasing the intrusion heat from outside of the cable by inserting the LTCL. The suitable thickness of the LTCL can be obtained by considering this tradeoff relationship.