https://doi.org/10.1140/epjs/s11734-024-01352-7
Regular Article
Electromagnetic characterization of high-temperature superconducting cables with partial tape faults
1
College of Electric Power Engineering, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
2
Yunnan Power Grid Corporation, 650217, Kunming, Yunnan, China
Received:
9
August
2024
Accepted:
29
September
2024
Published online:
18
October
2024
Due to the non-uniformity of the critical characteristics of the second generation high-temperature superconducting tape, it can easily lead to the failure of partial superconducting tapes in the transmission layer of the cable when encountering external mechanical impact such as unregulated construction, which is affecting the alternating current (AC) loss and posing risks to the steady-state operation of superconducting cables. To understand the impact of partial tape faults on superconducting cables, in this work, a finite element simulation model of single-phase multi-layer superconducting cable with faulty tapes is proposed. Based on whether there is an overlapping zone at the location of faulty tapes distributed simultaneously in multi-layers, the distribution of random faults can be categorized into two types of overlapping or non-overlapping. The simulation analyzes the influence of faulty tape in different layer distribution types and different relative locations of faults on the electromagnetic characteristics of superconducting cables, revealing the variation rule of AC loss in the transmission layer of superconducting cable in different fault locations under partial tape faults. The results show that partial tape failures impact the magnitude of the AC loss in the transmission layer in proportion to the number of failed tapes. The AC loss in the transmission layer with faulted tape is related to the presence or absence of overlapping fault locations. If overlapping exists, the variation of AC loss is proportional to the degree of overlap, and the relationship with the Relative position factor shows a U-shaped upward trend. It means that the impact of faulty tape has large differences in different fault locations, which provides an important engineering reference to ensure the stable operation of superconducting cables.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.