交流高温超导电缆构型研究综述

Review of research on the configuration of AC high temperature superconducting cable

高温超导电缆相对于常规电缆,具有载流能力高、结构紧凑、传输损耗小等优势,在大规模电力传输或走廊受限的线路扩容方面,具有发展潜力。近二十年来,国内外已有多组电缆进行试验验证或投入示范运行。通过回顾交流高温超导电缆的构型研究,介绍了较为常见的三相独立式、三芯式和三相同轴式结构,同时还介绍了几种新型交流高温超导电缆构型,如悬挂架空式、扭曲堆叠式、圆芯式、双同轴式和快速冷却式等,分析了各种不同构型交流超导电缆的特点,梳理出交流超导电缆改进的技术路线和发展趋势。

Compared with conventional cables, high - temperature superconducting cables have the advantages of high current carrying capacity, tight structure and small transmission loss, and have potential for development in large - scale power transmission or line expansion under corridor restrictions. In the past two decades, there have been many sets of cables in the world for test verification or demonstration operation. By reviewing the configuration of AC high - temperature superconducting cables ,introducing the more common three - phase independent, three - in - one and three - phase coaxial, and introducing several new AC high-temperature superconducting cable configurations, such as suspension overhead, twist stacking, round core, double coaxial, and fast cooling., we analyzed the characteristics of AC superconducting cables of different configurations, combed the improved technical route and development trend of AC superconducting cables.