High T c superconducting (HTS) DC cable is a promising solution for large-scale power transmission over long distance. However, the refrigeration system for HTS cable is indispensable but undesirable. Considering that LNG (liquid natural gas) is now one kind of clean energy that is used more and more widely, it is possible to integrate HTS cable and LNG transportation into a single pipeline, resulting in a new energy transportation system- a HTS energy pipeline. In this paper, the principle and structure of the energy pipeline are first discussed and then the basic physical properties of the HTS tapes and liquid insulation medium in the LNG temperature range are analyzed. On this basis, a 10 kV/1 kA energy pipeline is designed, fabricated and tested.

中文翻译：

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用于电力和液体天然气运输的10 kV / 1 kA超导能量管道原型的设计和测试

高T c超导（HTS）直流电缆是长距离大规模输电的有希望的解决方案。但是，用于HTS电缆的制冷系统是必不可少的，但却是不可取的。考虑到LNG（液态天然气）现在是一种越来越广泛使用的清洁能源，有可能将HTS电缆和LNG运输集成到一条管道中，从而形成一个新的能源运输系统-HTS能源管道。本文首先讨论了能量管道的原理和结构，然后分析了液化天然气温度范围内高温超导带和液体绝缘介质的基本物理性能。在此基础上，设计，制造和测试了10 kV / 1 kA的能源管道。