芯结构对高温超导电缆力学和电磁性能的影响

IF 2.7 3区 工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Jiangtao Yan, Yuanwen Gao
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引用次数: 0

摘要

研究高温超导电缆的机电性能是设计和制备高温超导电缆的关键。不同的绕组芯结构会影响电缆的机电性能,但绕组芯结构的改变对超导电缆机电性能的影响尚不清楚。本文建立了三维有限元模型,以预测三种不同芯结构的索在横向压缩和轴向拉伸作用下的性能。所分析的三种电缆分别是CORC(导体对圆芯)、CORT(导体对圆管)和HFRC(导体对螺旋管)。通过改变岩心直径和内外径比进行参数化分析。结果表明,与CORC电缆相比,CORT电缆具有更好的横向压缩性能,与实验数据一致。在三种拉索中,HFRC拉索的抗横向变形能力最弱。然而,在保持横向压缩性能的前提下,与CORT电缆相比,HFRC电缆具有更好的抗拉伸变形能力。有限元结果还表明,获得最佳横向压缩性能的最佳内外径比,CORT电缆约为0.8,HFRC电缆约为0.6。同时,研究了高温超导电缆绕组芯结构变化对其电磁性能的影响。它建议使用小带隙,低频率和螺旋芯结构,以尽量减少涡流损失。本文的研究结果为高温超导电缆的商业化和实际制造提供了有价值的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Core Structure on the Mechanical and Electromagnetic Properties of High-Temperature Superconducting Cables

Research on the mechanical–electrical properties is crucial for designing and preparing high-temperature superconducting (HTS) cables. Various winding core structures can influence the mechanical–electrical behavior of cables, but the impact of alterations in the winding core structure on the mechanical–electrical behavior of superconducting cables remains unclear. This paper presents a 3D finite element model to predict the performance of three cables with different core structures when subjected to transverse compression and axial tension. The three cables analyzed are CORC (conductor-on-round-core), CORT (conductor-on-round-tube), and HFRC (conductor-on-spiral-tube). A parametric analysis is carried out by varying the core diameter and inner-to-outer diameter ratio. Results indicate that the CORT cable demonstrates better performance in transverse compression compared to the CORC cable, aligning with experimental data. Among the three cables, the HFRC cables exhibit the weakest resistance to transverse deformation. However, the HFRC cable demonstrates superior tensile deformation resistance compared to the CORT cable, provided that the transverse compression properties are maintained. Finite element results also show that the optimum inner-to-outer diameter ratios for achieving the best transverse compression performance are approximately 0.8 for CORT cables and 0.6 for HFRC cables. Meanwhile, the study explores the effect of structural changes in HTS cable winding cores on their electromagnetic properties. It recommends utilizing small tape gaps, lower frequencies, and spiral core construction to minimize eddy losses. The findings presented in this paper offer valuable insights for the commercialization and practical manufacturing of HTS cables.

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来源期刊
Acta Mechanica Solida Sinica
Acta Mechanica Solida Sinica 物理-材料科学:综合
CiteScore
3.80
自引率
9.10%
发文量
1088
审稿时长
9 months
期刊介绍: Acta Mechanica Solida Sinica aims to become the best journal of solid mechanics in China and a worldwide well-known one in the field of mechanics, by providing original, perspective and even breakthrough theories and methods for the research on solid mechanics. The Journal is devoted to the publication of research papers in English in all fields of solid-state mechanics and its related disciplines in science, technology and engineering, with a balanced coverage on analytical, experimental, numerical and applied investigations. Articles, Short Communications, Discussions on previously published papers, and invitation-based Reviews are published bimonthly. The maximum length of an article is 30 pages, including equations, figures and tables
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