Title:
CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/189241
Kind Code:
A1
Abstract:
The present invention acquires information relating to control of a three-phase alternating current motor by a simpler technique. This control device is a control device that controls a three-phase alternating current motor having an encoder that outputs feedback signals indicating a rotation state of an output shaft, and a U-phase coil, a V-phase coil, and a W-phase coil. The control device includes a first acquisition unit that acquires information relating to back electromotive force generated at the U-phase coil, the V-phase coil, and the W-phase coil, due to the output shaft being rotated in a desired direction under external force, a second acquisition unit that acquires, from the encoder, feedback signals including information relating to rotation of the output shaft that is rotated under the external force, and a control unit that estimates information relating to control of the three-phase alternating current motor on the basis of the information relating to back electromotive force and the feedback signals, and controls the three-phase alternating current motor using the information relating to control of the three-phase alternating current motor that is estimated.
Inventors:
KAIDA SOTA (JP)
ONO YASUSHI (JP)
ONO YASUSHI (JP)
Application Number:
PCT/JP2023/008342
Publication Date:
October 05, 2023
Filing Date:
March 06, 2023
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
H02P23/14
Domestic Patent References:
| WO2017002257A1 | 2017-01-05 |
Foreign References:
| JP2002354876A | 2002-12-06 | |||
| JP2014138530A | 2014-07-28 | |||
| JP2013179771A | 2013-09-09 |
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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