Title:
AC MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/089861
Kind Code:
A1
Abstract:
This AC motor control device comprises: a current detector; a first coordinate converter that converts a detection current before conversion, which is the detection result detected by the current detector, into a two-axis detection current which is a current on two rotating axes; a two-axis current filter that reduces the noise component of the two-axis detection current; a second coordinate converter that converts the filtered two-axis current into a filtered three-phase current in a stationary coordinate system; a first controller that generates a first three-phase voltage command on the basis of the two-axis detection current or the filtered two-axis current; a second controller that generates a second three-phase voltage command on the basis of the filtered three-phase current; and an inverter that applies a voltage to an AC motor on the basis of the first and second three-phase voltage commands.
Inventors:
MORI TATSUYA (JP)
YAMAMOTO MUNENORI (JP)
TODA TAIZO (JP)
NUMAKURA AKIO (JP)
MATSUSHITA MASAKI (JP)
YAMAMOTO MUNENORI (JP)
TODA TAIZO (JP)
NUMAKURA AKIO (JP)
MATSUSHITA MASAKI (JP)
Application Number:
PCT/JP2022/040280
Publication Date:
May 02, 2024
Filing Date:
October 28, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P21/22
Domestic Patent References:
| WO2014128887A1 | 2014-08-28 |
Foreign References:
| JP2012105402A | 2012-05-31 | |||
| JP2014150644A | 2014-08-21 |
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (JP)
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