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Analysis of magnetic forces, distribution of supercurrent and axial magnetic force density of a radial-type high-Tc superconducting magnetic bearing.

[In Japanese. / En japonais.]

Author(s) : HIROSE M., NASU H., SHIMIZU A.

Type of article: Article

Summary

Flywheel energy storage systems using superconducting magnetic bearings (SMBs) were studied to contribute to daily load leveling. These SMBs are incorporated to support the total weight of rotors without contact with them. When designing these SMBs, the levitation force should be predicted with a practical analytical method. This paper deals with the analysis of levitation force characteristics for practicable radial-type SMBs with multiple superconducting bulks. It was found that the attenuation of the levitation force because of flux creep and hysteresis of the superconductor assembly were well explained. The authors provide results of the distribution of supercurrent density and axial magnetic force density according to flux creep and hysteresis of the superconductor in radial-type SMB.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2002-2804
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 36 - n. 7
  • Publication date: 2001
  • Document available for consultation in the library of the IIR headquarters only.

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