Title:
MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD, ELECTRIC CIRCUIT CONSTANT MEASUREMENT DEVICE AND ELECTRIC CIRCUIT CONSTANT MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2023/286272
Kind Code:
A1
Abstract:
An objective of the present invention is to obtain a motor control device and motor control method in which an electric circuit constant can be measured with high precision in motor control. A motor control device (100) comprises an electric circuit constant measurement unit (150) which measures an electric circuit constant of an electric circuit of a motor (91), such as a resistance value (R). The electric circuit constant measurement unit (150) comprises a detection processing unit (151) which has as inputs a q-axis current signal iq serving as a reference signal and a q-axis voltage instruction vq* serving as a target signal, and measures the resistance value (R) by using synchronous detection to extract, from the q-axis voltage instruction vq*, a signal component comprising the product of the resistance value (R) and the q-axis current signal iq.
Inventors:
FURUTANI SHINICHI (JP)
Application Number:
PCT/JP2021/026823
Publication Date:
January 19, 2023
Filing Date:
July 16, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P21/14
Domestic Patent References:
| WO2021111695A1 | 2021-06-10 | |||
| WO2016185924A1 | 2016-11-24 |
Foreign References:
| JP2021005922A | 2021-01-14 | |||
| JPH10243698A | 1998-09-11 |
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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