中国物理B ›› 2026, Vol. 35 ›› Issue (7): 77402-077402.doi: 10.1088/1674-1056/ae181f

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Current characteristics of strands weaved by transposed REBCO tapes

Heng Zhang(张恒)1, Jing-Yi Yang(杨敬伊)2, Zong-Li Wei(魏宗礼)3, and Wei Pi(皮伟)1,†   

  1. 1 State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources and the Key Laboratory of HV and EMC Beijing, North China Electric Power University, Beijing 102206, China;
    2 State Grid Tangshan Power Supply Company, Tangshan 063100, China;
    3 State Grid Haibei Power Supply Company, Haiyan 812299, China
  • 收稿日期:2025-09-13 修回日期:2025-10-06 接受日期:2025-10-28 发布日期:2026-07-21
  • 通讯作者: Wei Pi E-mail:ppiiwei@ncepu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 52277025) and the Beijing Natural Science Foundation (Grant No. 3252022).

Current characteristics of strands weaved by transposed REBCO tapes

Heng Zhang(张恒)1, Jing-Yi Yang(杨敬伊)2, Zong-Li Wei(魏宗礼)3, and Wei Pi(皮伟)1,†   

  1. 1 State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources and the Key Laboratory of HV and EMC Beijing, North China Electric Power University, Beijing 102206, China;
    2 State Grid Tangshan Power Supply Company, Tangshan 063100, China;
    3 State Grid Haibei Power Supply Company, Haiyan 812299, China
  • Received:2025-09-13 Revised:2025-10-06 Accepted:2025-10-28 Published:2026-07-21
  • Contact: Wei Pi E-mail:ppiiwei@ncepu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 52277025) and the Beijing Natural Science Foundation (Grant No. 3252022).

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摘要： A superconducting strand, fabricated by weaving 3, 5, 7, or more transposed rare-earth barium copper oxide (REBCO) high-temperature superconducting (HTS) tapes, is proposed to enhance the critical current and achieve uniform distributions of operating current in each REBCO tape. This design allows all the HTS tapes to quench simultaneously, thereby increasing the critical current compared to a strand simply stacked with HTS tapes and improving HTS tape utilization. Additionally, the transposition strategy can be used to manufacture strands woven with more REBCO tapes for high-current applications such as power transmission. Experimental results demonstrate that strands woven with HTS tapes can enhance the critical current in comparison with strands simply stacked and Roebel cables. Furthermore, a finite element model (FEM) based on the H-formulation has been established to show the operating current distribution.

关键词: multiple transposed HTS tapes, $H$-formulation, critical current, HTS tape utilization ($\beta_i$), normalized operating current

Abstract: A superconducting strand, fabricated by weaving 3, 5, 7, or more transposed rare-earth barium copper oxide (REBCO) high-temperature superconducting (HTS) tapes, is proposed to enhance the critical current and achieve uniform distributions of operating current in each REBCO tape. This design allows all the HTS tapes to quench simultaneously, thereby increasing the critical current compared to a strand simply stacked with HTS tapes and improving HTS tape utilization. Additionally, the transposition strategy can be used to manufacture strands woven with more REBCO tapes for high-current applications such as power transmission. Experimental results demonstrate that strands woven with HTS tapes can enhance the critical current in comparison with strands simply stacked and Roebel cables. Furthermore, a finite element model (FEM) based on the H-formulation has been established to show the operating current distribution.

Key words: multiple transposed HTS tapes, $H$-formulation, critical current, HTS tape utilization ($\beta_i$), normalized operating current

中图分类号:  (Superconducting materials other than cuprates)

  • 74.70.-b