Influence of Flux-Flow and Terminal Contacting as Well as Dynamic Resistances Due to Ripple Current on Performance of the km-Class HTS DC Cable

IF 1.7 3区物理与天体物理 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-27 DOI:10.1109/TASC.2024.3469871

Ziqing Meng;Yinshun Wang;Junhua Cheng;Jiawen Wang;Ye He;Wei Pi

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Abstract

High temperature superconducting (HTS) direct current (DC) cables have recently gained interest and are being considered for some applications because of their intrinsic zero resistance and high current density. However, due to the unavoidable harmonic currents in practical DC transmission systems, the issues of AC loss and dynamic resistance of HTS DC cables have to be paid much attention. Besides, for a high voltage transmission line with a length of more than several kilometers, the flux flow and contacting resistances should be calculated simultaneously. In this paper, E-I power law instead of the critical state model (CSM) is adopted and temperature variation caused by cable length are considered in analyzing the characteristics of HTS DC cable. A 1 km/5 kA HTS DC cable based on the principle of uniform current is designed considering three types of resistances comprehensively, which is significant to the development and operation of HTS DC cables toward practical long transmission distance.

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磁通流、端子接触以及波纹电流导致的动态电阻对 km 级 HTS 直流电缆性能的影响

高温超导（HTS）直流（DC）电缆因其固有的零电阻和高电流密度，最近受到了越来越多的关注，并在一些应用中得到了考虑。然而，由于在实际直流输电系统中谐波电流不可避免，因此 HTS 直流电缆的交流损耗和动态电阻问题必须引起高度重视。此外，对于长度超过几千米的高压输电线路，应同时计算磁通流和接触电阻。本文在分析 HTS 直流电缆特性时，采用了 E-I 功率定律而非临界状态模型 (CSM)，并考虑了电缆长度引起的温度变化。本文综合考虑了三种电阻，设计了一种基于均流原理的 1 km/5 kA HTS 直流电缆，对 HTS 直流电缆向实用长距离传输的发展和运行具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Applied Superconductivity 工程技术-工程：电子与电气

CiteScore

3.50

自引率

33.30%

发文量

650

审稿时长

2.3 months

期刊介绍： IEEE Transactions on Applied Superconductivity (TAS) contains articles on the applications of superconductivity and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Large scale applications include magnets for power applications such as motors and generators, for magnetic resonance, for accelerators, and cable applications such as power transmission.