Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Experimental study on the interaction force between a permanent magnet and a superconducting roll stack

  • Wenxin Li (School of Electrical & Information Engineering, Tianjin University) ;
  • Tianhui Yang (School of Electrical & Information Engineering, Tianjin University) ;
  • Ying Xin (School of Electrical & Information Engineering, Tianjin University)
  • Received : 2023.01.05
  • Accepted : 2023.03.30
  • Published : 2023.03.31
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Abstract

In recent years, the interaction force between a permanent magnet and a closed superconductor coil has been gradually investigated in depth. The principle and application potential of an energy storage/convertor composed of a magnet and a closed superconducting coil have been proved. However, the study on the force between a magnet and a non-closed superconducting coil (superconducting roll stack) has hardly been reported in previous literature. The behavior of this kind of interaction and its influence to the interaction force between a permanent and a closed superconducting coil are also still unclear. In this paper, first we investigated the interaction force between a magnet and a superconducting roll stack. Then, a series of experiments were designed and conducted to clarify the factors affected the interaction force, including the geometrical parameters of the superconducting roll stack and the magnetic field density at the roll stack. Moreover, the comparison of the interaction forces between the magnet and roll stack or a closed coil was also introduced.

Keywords

Acknowledgement

This work was supported in part by the Tianjin Research Innovation Project for Postgraduate Students (grant no. 2021YJSB157).

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