Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Conceptual design of 240 mm 3 T no-insulation multi-width REBCO magnet

  • Choi, Kibum (Department of Electrical and Computer Engineering, Seoul National University) ;
  • Lee, Jung Tae (Department of Electrical and Computer Engineering, Seoul National University) ;
  • Bang, Jeseok (Department of Electrical and Computer Engineering, Seoul National University) ;
  • Bong, Uijong (Department of Electrical and Computer Engineering, Seoul National University) ;
  • Park, Jeonghwan (Department of Electrical and Computer Engineering, Seoul National University) ;
  • Hahn, Seungyong (Department of Electrical and Computer Engineering, Seoul National University)
  • Received : 2019.08.19
  • Accepted : 2019.09.17
  • Published : 2019.09.30
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Abstract

A rare-earth barium copper oxide (REBCO) superconducting magnet was designed using no-insulation (NI) and multi-width (MW) winding techniques. The proposed magnet is comprised of 58 REBCO-wound single pancake coils with a bore size of 240 mm. When the magnet is operated at 20 K, the center magnetic flux density is designed to reach 3 T with an operational current of 169.55 A, 70 % of its critical current. The critical current was evaluated using experimental data of a short REBCO conductor sample. The designed magnet was then simulated using FEM software with uniform current density model. Magnetic field and mechanical properties of the magnet are evaluated using the simulated data. This magnet was designed as one of the base designs for the project "Tesla-Level Magnets with Large Bore Sizes for Industrial Applications" which was initiated in 2019, and will be wound using REBCO wires with the defect-irrelevant-winding (DIW) technique incorporated to reduce the overall manufacturing cost.

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References

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