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Three-Dimensional Numerical Characterization of High-Temperature Superconductor Bulks Subjected to Rotating Magnetic Fields

Author

Listed:
  • Wafa Ali Soomro

    (Faculty of Engineering and IT, University of Technology Sydney, Sydney, NSW 2007, Australia)

  • Youguang Guo

    (Faculty of Engineering and IT, University of Technology Sydney, Sydney, NSW 2007, Australia)

  • Haiyan Lu

    (Faculty of Engineering and IT, University of Technology Sydney, Sydney, NSW 2007, Australia)

  • Jianguo Zhu

    (School of Electrical and Information Engineering, University of Sydney, Sydney, NSW 2006, Australia)

  • Jianxun Jin

    (School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China)

  • Boyang Shen

    (Electrical Engineering Division, University of Cambridge, Cambridge CB3 0FA, UK)

Abstract

High-temperature superconductor (HTS) bulks have shown very promising potential for industrial applications due to the ability to trap much higher magnetic fields compared to traditional permanent magnets. In rotating electrical machines, the magnetic field is a combination of alternating and rotating fields. On the contrary, all studies on electromagnetic characterization of HTS presented in the literature so far have only focused on alternating AC magnetic fields and alternating AC loss due to the unavailability of robust experimental techniques and analytical models. This paper presents a numerical investigation on the characterization of HTS bulks subjected to rotating magnetic fields showing AC loss, current density distribution in three-dimensional axes, and trapped field analysis. A three-dimensional numerical model has been developed using H-formulation based on finite element analysis. An HTS cubic sample is magnetized and demagnetized with two-dimensional magnetic flux density vectors rotating in circular orientation around the XOY, XOZ, and YOZ planes.

Suggested Citation

  • Wafa Ali Soomro & Youguang Guo & Haiyan Lu & Jianguo Zhu & Jianxun Jin & Boyang Shen, 2022. "Three-Dimensional Numerical Characterization of High-Temperature Superconductor Bulks Subjected to Rotating Magnetic Fields," Energies, MDPI, vol. 15(9), pages 1-13, April.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:9:p:3186-:d:803287
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