Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/245997
Kind Code:
A1
Abstract:
This motor control device (100) has: an excitation command preparing unit (103) for exciting an excitation position of any one phase of a motor (200) having a plurality of phases; and a polarity estimating unit (104) for estimating the polarity of a position detector (201) that detects the rotation angle of the motor (200), wherein the polarity estimating unit (104) extracts two candidates for the magnetic pole positions of the motor (200) on the basis of a combination of rotation directions of the motor (200) which are detected by the position detector (201) when the plurality of excitation positions of the motor (200) are excited, and the polarity estimating unit estimates the polarity of the position detector (201) on the basis of the rotation angles of the motor (200) which are detected by the position detector (201) when one of the two extracted candidates for the magnetic pole positions has been excited.
Inventors:
KANAMORI RYOTA (JP)
HIGASHINO MAKOTO (JP)
HIGASHINO MAKOTO (JP)
Application Number:
PCT/JP2019/022617
Publication Date:
December 10, 2020
Filing Date:
June 06, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P6/16
Foreign References:
| JP2001078487A | 2001-03-23 | |||
| JP2011024297A | 2011-02-03 | |||
| JP2015057030A | 2015-03-23 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
Download PDF: