Title:
ABNORMALITY DIAGNOSIS DEVICE FOR ELECTRIC MOTOR EQUIPMENT, ABNORMALITY DIAGNOSIS METHOD FOR ELECTRIC MOTOR EQUIPMENT, AND ABNORMALITY DIAGNOSIS SYSTEM FOR ELECTRIC MOTOR EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2020/208743
Kind Code:
A1
Abstract:
This abnormality diagnosis device for electric motor equipment is provided with a monitoring diagnosis unit for diagnosing abnormalities of an electric motor and a power transmission mechanism on the basis of a monitoring result of current flowing through a power supply line of the electric motor. The monitoring diagnosis unit is provided with: an analysis unit for performing frequency analysis on the current; and an abnormality diagnosis unit for diagnosing the abnormalities of the electric motor and the power transmission mechanism from the result of the frequency analysis.
Inventors:
KANEMARU MAKOTO (JP)
MIYAUCHI TOSHIHIKO (JP)
INOUE HIROSHI (JP)
HIRAKIDA KEN (JP)
MIYAUCHI TOSHIHIKO (JP)
INOUE HIROSHI (JP)
HIRAKIDA KEN (JP)
Application Number:
PCT/JP2019/015621
Publication Date:
October 15, 2020
Filing Date:
April 10, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P29/024; H02K15/02
Domestic Patent References:
WO2014156386A1 | 2014-10-02 | |||
WO2017221588A1 | 2017-12-28 |
Foreign References:
JP2010288352A | 2010-12-24 | |||
JP2017181437A | 2017-10-05 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
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