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Optimized design and performance test of 16 kA HTS current leads used for fusion HTS magnets

Author

Listed:
  • Zi Li

    (Huazhong University of Science and Technology)

  • Xuyang Kang

    (Huazhong University of Science and Technology)

  • Chenyang Xia

    (Huazhong University of Science and Technology)

  • Zhiyong Yan

    (Huazhong University of Science and Technology)

  • Suxin Wang

    (Huazhong University of Science and Technology)

  • Liujiang Li

    (Huazhong University of Science and Technology)

  • Yutong Tian

    (Huazhong University of Science and Technology)

  • Jiahui Zhu

    (China Electric Power Research Institute)

  • Qi Zhou

    (State Grid Jiangsu Electric Power Research Institute Co., Ltd)

  • Chenyu Zhang

    (State Grid Jiangsu Electric Power Research Institute Co., Ltd)

  • Ruihuang Liu

    (State Grid Jiangsu Electric Power Research Institute Co., Ltd)

  • Yunfei Tan

    (Huazhong University of Science and Technology)

Abstract

Heat leakage from current leads is a primary factor influencing the heat load of large superconducting magnet systems. High Temperature Superconducting current leads (HTSCL), in comparison to traditional copper current leads, can significantly reduce both Joule heat and conductive heat leakage in superconducting magnet systems, thereby reducing operational costs. This paper provides a comprehensive optimization of a pair of 16 kA HTSCL intended for the performance test of HTS fusion magnets. Several optimization models were constructed to determine the optimal parameters. The heat load and maximum current-carrying capacity of 16 kA HTSCL are calculated and optimized, and the performance in steady state and loss of flow accident (LOFA) transient process are also analyzed. After about a year of manufacturing, this 16 kA HTSCL were tested in November 2024. The performance test scheme and test results are introduced in detail, mainly including steady state test, LOFA test, joint resistance test, etc. The experimental results are in good agreement with the simulation results, with all indicators meeting the design requirements for fusion HTS magnets. Graphical abstract

Suggested Citation

  • Zi Li & Xuyang Kang & Chenyang Xia & Zhiyong Yan & Suxin Wang & Liujiang Li & Yutong Tian & Jiahui Zhu & Qi Zhou & Chenyu Zhang & Ruihuang Liu & Yunfei Tan, 2025. "Optimized design and performance test of 16 kA HTS current leads used for fusion HTS magnets," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 98(7), pages 1-9, July.
    • Handle: RePEc:spr:eurphb:v:98:y:2025:i:7:d:10.1140_epjb_s10051-025-00994-3
    DOI: 10.1140/epjb/s10051-025-00994-3
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