Title:
ELECTRIC MOTOR CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/064702
Kind Code:
A1
Abstract:
An electric motor control apparatus (100) comprises: a power conversion device (3) that converts power from a power source (4) and supplies AC power to an electric motor (2); a current detection device (7) that detects current flowing to the electric motor (2); and a control unit (1) that causes current to flow through two phases of input power lines (5) of the electric motor (2), detects a gain error of the current detection device (7) between the two phases, and outputs, to the power conversion device (3), a driving signal (Vuvw_ref) obtained by compensating the gain error.
Inventors:
ISHIZAKI JUNKI (JP)
SAKANOBE KAZUNORI (JP)
WADA YASUHIKO (JP)
SAKANOBE KAZUNORI (JP)
WADA YASUHIKO (JP)
Application Number:
PCT/JP2020/036655
Publication Date:
March 31, 2022
Filing Date:
September 28, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02J3/26
Foreign References:
| JPH09216775A | 1997-08-19 | |||
| JP2016158414A | 2016-09-01 | |||
| JP2004120814A | 2004-04-15 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
Download PDF:
Previous Patent: CALCULATION DEVICE, AND BENDING METHOD
Next Patent: FLAME-RETARDANT FABRIC AND PROTECTIVE CLOTHING USING SAME
Next Patent: FLAME-RETARDANT FABRIC AND PROTECTIVE CLOTHING USING SAME