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Evaluations of a hybrid-type superconducting magnetic bearing system

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3 Author(s)
Komori, M. ; Fac. of Comput. Sci., Kyushu Inst. of Technol., Fukuoka, Japan ; Matsuoka, S. ; Fukata, S.

This paper describes a hybrid-type superconducting magnetic bearing (SMB) system. The system is composed of a pair of SMBs and a pair of active magnetic bearings (AMBs). The hybrid-type SMB system does not need bias currents applied to the electromagnets for supporting the rotor, because the rotor mass is supported by the SMBs. The displacements of the rotor are suppressed by both the SMBs and the AMBs. The superconductors of the SMBs were field-cooled. Comparison of the impulse response of the rotor in the hybrid-type SMB system and that with only SMB's working highlights the good performance of the former. In order to investigate the usefulness of the hybrid-type SMB system, displacements of the rotating rotor and energy loss of the system are discussed.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:6 ,  Issue: 4 )