Title:
MAGNETIC BEARING CONTROL DEVICE AND MAGNETIC BEARING CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/239682
Kind Code:
A1
Abstract:
A magnetic bearing control device for a magnetically levitated motor comprising a rotor, a pair of electromagnets for levitating the rotor by electromagnetic force, an auxiliary bearing for supporting a rotating shaft of the rotor when the rotor is stopped, and a rotor position detector for detecting a levitated-direction position of the rotor. The magnetic bearing control device is provided with an operating current generation unit which generates an operating current value corresponding to a deviation between a position command value and a rotor position detected by the rotor position detector. The operating current generation unit is configured such that, at the start of levitation for causing the rotor to be positioned in a predetermined target position from a state in which the rotating shaft of the rotor is supported on the auxiliary bearing, the operating current value is provided with a predetermined initial value greater than zero.
Inventors:
TAKEMURA SOICHIRO
TOKUYAMA KAZUMA
KOGA TSUYOSHI
SEKI YUKI
TAKATA SUGURU
TOKUYAMA KAZUMA
KOGA TSUYOSHI
SEKI YUKI
TAKATA SUGURU
Application Number:
PCT/JP2019/014421
Publication Date:
December 19, 2019
Filing Date:
April 01, 2019
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F16C32/04
Foreign References:
| JP2013079678A | 2013-05-02 | |||
| JP2009014084A | 2009-01-22 | |||
| JPH08145057A | 1996-06-04 | |||
| JP2013079678A | 2013-05-02 |
Other References:
See also references of EP 3809005A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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