Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/007745
Kind Code:
A1
Abstract:
Provided is a motor control device that can use a sensor input circuit that has a low response speed. According to the present invention, a motor control device comprises a first magnetic pole position detection unit, a second magnetic pole position detection unit, and a control unit. The first magnetic pole position detection unit detects the pre-rotation position of a magnetic pole of a rotor on the basis of detection results from a magnetic pole sensor. The second magnetic pole position detection unit detects the position of the magnetic pole of the rotor on the basis of the current flowing in a plurality of drive windings that drive the rotor. The control unit performs control that makes the rotor start rotating on the basis of detection results from the first magnetic pole position detection unit and control that makes the rotating rotor rotate on the basis of detection results from the second magnetic pole position detection unit.
Inventors:
AKIMOTO SHINICHI (JP)
HIRAMATSU KAZUHIKO (JP)
HIRAMATSU KAZUHIKO (JP)
Application Number:
PCT/JP2021/028485
Publication Date:
February 02, 2023
Filing Date:
July 30, 2021
Export Citation:
Assignee:
YASKAWA ELECTRIC CORP (JP)
International Classes:
H02P6/20; H02P6/16
Foreign References:
| JP2015122823A | 2015-07-02 | |||
| JP2019024284A | 2019-02-14 | |||
| JP2013059258A | 2013-03-28 | |||
| JP6901651B1 | 2021-07-14 | |||
| JP2010233342A | 2010-10-14 | |||
| CN110011576A | 2019-07-12 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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