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A study on design process of HTS bulk magnet synchronous motors

  • Jaheum Koo (Department of Electrical and Computer Engineering, Seoul National University) ;
  • JuKyung Cha (Department of Electrical and Computer Engineering, Seoul National University) ;
  • Jonghoon Yoon (Department of Electrical and Computer Engineering, Seoul National University) ;
  • Seungyong Hahn (Department of Electrical and Computer Engineering, Seoul National University)
  • Received : 2023.12.19
  • Accepted : 2024.02.03
  • Published : 2024.03.31

Abstract

This study explores the use of a bulk type high-temperature superconductors (HTS) as trapped field magnets in synchronous motors. A HTS bulk is examined for its ability to generate powerful magnetic fields over a permanent magnet and to eliminate the need for a direct power supply connection compared to a tape form of HTS. A 150 kW interior-mounted bulk-type superconducting synchronous motor is designed and analyzed. The A-H formulation is used to numerical analysis. The results show superior electrical performance and weight reduction when comparing the designed model with the conventional permanent magnet synchronous motor of the same topology. This study presents HTS bulk synchronous motor's overall design process and highlights its potential in achieving relatively high power density than conventional permanent magnet synchronous motor.

Keywords

Acknowledgement

This work was supported in part by National R&D Pro gram through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT(2022M3I9A1073924), in part by National R&D Program through the National Research Foundation of Korea(NRF) funded by Ministry of Science and ICT(2022M3I9A1072846), and in part by the Applied Superconductivity Center, Electric Power Research Institute of Seoul National University.

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