Title:
CONTROL DEVICE FOR MAGNETIC BEARING AND CONTROL METHOD OF MAGNETIC BEARING
Document Type and Number:
Japanese Patent JP2019218968
Kind Code:
A
Abstract:
To provide a control device for a magnetic bearing and a control method of a magnetic bearing each of which allows for suppression of vibration of a rotor on an auxiliary bearing and repeated mutual contact and separation of the rotor and the auxiliary bearing upon starting of levitation of the rotor.SOLUTION: There is provided a control device for a magnetic bearing of a magnetically levitated motor comprising a rotor, a pair of electromagnets levitating the rotor by electromagnetic force, an auxiliary bearing supporting a rotating shaft of the rotor upon stopping the rotor, and a rotor position detector detecting a levitating direction position of the rotor. The control device comprises an operation current generation part generating an operation electric current value according to deviation between a position command value and a rotor position detected by the rotor position detector, the operation current generation part applies a prescribed initial value more than 0 to the operation current value upon starting of the levitation for positioning the rotor on the prescribed target position from a state in which the rotating shaft of the rotor is supported by the auxiliary bearing.SELECTED DRAWING: Figure 2
Inventors:
TAKEMURA SOICHIRO
TOKUYAMA KAZUMA
KOGA TAKESHI
SEKI YUKI
TAKADA MASARU
TOKUYAMA KAZUMA
KOGA TAKESHI
SEKI YUKI
TAKADA MASARU
Application Number:
JP2018114788A
Publication Date:
December 26, 2019
Filing Date:
June 15, 2018
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD
International Classes:
F16C32/04
Domestic Patent References:
| JP2013079678A | 2013-05-02 |
Foreign References:
| WO2018193528A1 | 2018-10-25 |
Attorney, Agent or Firm:
Patent business corporation Yuko patent office