Title:
ROTATING MACHINE CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/026332
Kind Code:
A1
Abstract:
This control apparatus (100) comprises: an electric current detection unit (2) for detecting a rotating machine electric current flowing in a rotating machine (1); a position estimation unit (4) for calculating an estimated value of a rotor position that is positional information of a rotor (1b), on the basis of the rotating machine electric current; an electric current control unit (5) for generating a first voltage command that is a commanded value of a rotating machine voltage for driving the rotating machine, on the basis of a detected value of the rotating machine electric current and the estimated value of the rotor position; a position estimation voltage generation unit (30) for generating a position estimation voltage for estimating the rotor position on the basis of rotational information regarding the rotational direction of the rotor (1b), the position estimation voltage having a higher frequency than the first voltage command; and a voltage applicator (3) for applying a voltage for driving the rotating machine (1) on the basis of a second voltage command that superimposes the position estimation voltage on the first voltage command.
Inventors:
TERAMOTO KOTA (JP)
SUZUKI TOSHIKI (JP)
SUZUKI TOSHIKI (JP)
Application Number:
PCT/JP2021/030851
Publication Date:
March 02, 2023
Filing Date:
August 23, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P21/18
Domestic Patent References:
| WO2015159694A1 | 2015-10-22 |
Foreign References:
| JP2013090552A | 2013-05-13 | |||
| JPH09140001A | 1997-05-27 | |||
| JP2012228058A | 2012-11-15 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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