Title:
CONTROL DEVICE FOR ROTATING ELECTRIC MACHINE AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/113318
Kind Code:
A1
Abstract:
The present invention provides a control device, for a rotating electric machine, and an electric power steering device that, regardless of increases/decreases in rotational angular velocity, can appropriately carry out weak magnetic flux by appropriately increasing and decreasing the increment in the negative direction of a d-axis current without using information regarding inductance and interlinkage magnetic flux of a rotor. When a q-axis current command value (Iqo) is a positive value, a control device (10) for a rotating electric machine changes a d-axis current command value (Ido) on the basis of the deviation (ΔIq_erroff) between a q-axis current detection value (Iqs) and an offset q-axis current command value (Iqoffo) obtained by substracting a positive q-axis offset value (ΔIqoff) from the q-axis current command value (Iqo).
Inventors:
KITAGAWA JUN (JP)
MORI TATSUYA (JP)
ORII MASAHIKO (JP)
KUBO KENTA (JP)
SAWADA KENTA (JP)
MORI TATSUYA (JP)
ORII MASAHIKO (JP)
KUBO KENTA (JP)
SAWADA KENTA (JP)
Application Number:
PCT/JP2020/044420
Publication Date:
June 02, 2022
Filing Date:
November 30, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P21/22
Domestic Patent References:
| WO2020090115A1 | 2020-05-07 |
Foreign References:
| JP3559258B2 | 2004-08-25 | |||
| JP2020069860A | 2020-05-07 | |||
| JPS559258B2 | 1980-03-08 |
Other References:
See also references of EP 4254776A4
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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