Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/048258
Kind Code:
A1
Abstract:
A motor control device (100) wherein an inverter (10) converts a DC voltage that is supplied from a DC electric power source into an AC voltage and applies the converted AC voltage to a motor (M), an electric current detection unit (21) detects a bus bar electric current of the inverter (10) using a shunt resistance (Rs) that is connected between the DC electric power source and the inverter, a 3-phase electric current calculation unit (61) calculates a motor electric current that flows in the motor (M) on the basis of the bus bar electric current, a first extraction unit (91) extracts from the motor electric current a noise component that is included in the motor electric current, and a noise amount determination unit (92) determines the magnitude of the noise in the bus bar electric current on the basis of the extracted noise component.
Inventors:
OSADA YUDAI (JP)
Application Number:
PCT/JP2023/029412
Publication Date:
March 07, 2024
Filing Date:
August 14, 2023
Export Citation:
Assignee:
FUJITSU GENERAL LTD (JP)
International Classes:
H02P21/14; H02P27/06
Foreign References:
| JP2017034897A | 2017-02-09 | |||
| JP2009261101A | 2009-11-05 | |||
| JP2008086124A | 2008-04-10 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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