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Optimal design and thermal analysis of current leads in superconducting energy pipeline
IEEE Transactions on Applied Superconductivity ( IF 1.8 ) Pub Date : 2020-12-01 , DOI: 10.1109/tasc.2020.2994634
Xianhao Li , Li Ren , Ying Xu , Jing Shi , Xiaogang Chen , Guilun Chen , Shuqiang Guo , Yuejin Tang , Jingdong Li

Superconducting energy pipeline is a novel type of cotransmission system of electric power and fuel. As an indispensable part of the energy pipeline, the heat leakage and thermal performance of current leads are critical for the efficiency and safety of the system. In this article, a design method of current leads with given heat flux was proposed and used, which provides a new idea of lead optimization. Based on the working principles and design parameters of the terminal, the lead was optimized in a structure consisting of three different leads instead of a uniform one by the finite element model. Considering thermal and mechanical properties, the lead materials were compared and determined. Underrated current, steady-state overcurrent and fault conditions, the heat leakage, temperature distribution, and dynamic process were calculated and analyzed, which offers a reference for the lead performance evaluation and design parameter correction. The designed lead can meet the requirements for the energy pipeline, and it verifies that the lead of multisection structure can realize the balance between the minimum heat leakage and different operation requirements under complex terminal structure.

中文翻译:

超导能源管道中电流引线的优化设计与热分析

超导能源管道是一种新型的电力与燃料共输系统。作为能源管道中不可或缺的一部分,电流引线的热泄漏和热性能对系统的效率和安全性至关重要。本文提出并使用了一种给定热通量的电流引线设计方法,为引线优化提供了一种新思路。根据接线端子的工作原理和设计参数,通过有限元模型将引线优化为三种不同引线而非统一引线的结构。考虑到热性能和机械性能,比较并确定了铅材料。欠额定电流、稳态过流和故障条件、热泄漏、温度分布、并进行动态过程计算分析,为引线性能评价和设计参数修正提供参考。设计的引线能够满足能源管道的要求,验证了多段结构的引线能够在复杂的终端结构下实现最小热泄漏和不同运行要求之间的平衡。
更新日期:2020-12-01
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