Design and optimization of high-temperature superconducting racetrack magnet for the rotor of a 100-kW generator

Yi Li, Timing Qu, Chen Gu, Yudong Jiang, Ye Yang, Weijia Yuan, Rui Liu, Zhenghe Han

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Concept design and optimization for a high-temperature superconducting (HTS) rotor of a 100-kW generator is studied in this paper. The rotor has eight HTS magnets constructed by air-cored racetrack coils. The HTS magnets with a unique circular cross-sectional shape can produce a gap field over 2.0 T. The present design is based on a new graphical method developed to estimate the maximum operating current of an HTS magnet that takes both Ic-B characteristics and angular dependence into consideration. The optimized stepped shape design saved more than 8% of the HTS material compared with the rectangular one without sacrificing the gap field.

Original languageEnglish
Article number6990521
Number of pages5
JournalIEEE Transactions on Applied Superconductivity
Issue number3
Publication statusPublished - 30 Jun 2015



  • critical current
  • HTS
  • optimization
  • racetrack magnet
  • rotor

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