高温超导直流电缆系统设计及漏热分析

摘要

近年来,高温超导技术研究在输配电领域取得了显著的进展,超导电缆应用技术成为其重点发展方向.其中,冷却系统的设计是保证超导电缆输配电系统稳定运行的关键技术.针对一套高温超导直流电缆系统中的终端恒温器、电流引线和超导电缆本体等关键部件进行了漏热分析,并通过理论计算和有限元仿真,对高温超导电缆系统的热负荷进行了评估,为该系统可靠运行提供了保障.%In recent years,high-temperature superconducting (HTS) technology has made great progress in areas of power transmission and distribution,and the development of superconducting cable technology has made important contributions.The cryogenic cooling system design of a HTS cable system is the key point to assure the system reliability.In this paper,the heat leak analysis of a HTS cable system was made,including the terminal cryostats,the current leads and the cables.The thermal loads of the HTS cable system were evaluated and analyzed through theoretical calculations and finite element simulations,which confirmed the reliability of the HTS DC cable system.