MY197458A - Fluid system abnormality monitoring and diagnosis method for fluid rotary machine - Google Patents

Fluid system abnormality monitoring and diagnosis method for fluid rotary machine

Info

Publication number
MY197458A
MY197458A MYPI2022003855A MYPI2022003855A MY197458A MY 197458 A MY197458 A MY 197458A MY PI2022003855 A MYPI2022003855 A MY PI2022003855A MY PI2022003855 A MYPI2022003855 A MY PI2022003855A MY 197458 A MY197458 A MY 197458A
Authority
MY
Malaysia
Prior art keywords
system abnormality
rotary machine
fluid
kurtosis
induction motor
Prior art date
Application number
MYPI2022003855A
Inventor
Xinfang Liu
Fang Feng
Kentaro SUMOTO
Original Assignee
Takada Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Takada Corp filed Critical Takada Corp
Publication of MY197458A publication Critical patent/MY197458A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

A method for monitoring and diagnosing a fluidic system abnormality in a fluid rotary machine (11) used in order to detect a fluidic system abnormality occurring in a fluid rotary machine (11) driven by an induction motor (10). In the method, a value of a kurtosis ?, which is based on a spectral group within a predetermined range including a power-supply frequency of the induction motor (10) obtained by conducting a frequency analysis on an at- diagnosis current waveform acquired by measuring a current of the induction motor (10) when diagnosing, is calculated, and when the value of the kurtosis ? is smaller than a preset criterial kurtosis or has a tendency to decrease with the lapse of time, it is determined that there is a possibility that the fluidic system abnormality is occurring.
MYPI2022003855A 2020-02-07 2020-08-31 Fluid system abnormality monitoring and diagnosis method for fluid rotary machine MY197458A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020019890A JP6731562B1 (en) 2020-02-07 2020-02-07 Fluid system abnormality monitoring and diagnosis method for fluid rotating machinery
PCT/JP2020/032911 WO2021157111A1 (en) 2020-02-07 2020-08-31 Fluid system abnormality monitoring and diagnosis method for fluid rotary machine

Publications (1)

Publication Number Publication Date
MY197458A true MY197458A (en) 2023-06-19

Family

ID=71738479

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2022003855A MY197458A (en) 2020-02-07 2020-08-31 Fluid system abnormality monitoring and diagnosis method for fluid rotary machine

Country Status (3)

Country Link
JP (1) JP6731562B1 (en)
MY (1) MY197458A (en)
WO (1) WO2021157111A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111896260B (en) * 2020-08-01 2022-05-13 华东交通大学 NGAs synchronous optimization wavelet filter and MCKD bearing fault diagnosis method
EP4299557A1 (en) 2021-02-26 2024-01-03 Sumitomo Chemical Company Limited Phenylacetic acid derivative, use therefor, and production intermediate thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3254049B2 (en) * 1993-07-05 2002-02-04 セイコーインスツルメンツ株式会社 Magnetic bearing type rotating machine
JP4265982B2 (en) * 2004-02-25 2009-05-20 三菱電機株式会社 Equipment diagnostic equipment, refrigeration cycle equipment, refrigeration cycle monitoring system
JP5733913B2 (en) * 2010-06-11 2015-06-10 株式会社高田工業所 Abnormal diagnosis method for rotating machinery
JP2016200451A (en) * 2015-04-08 2016-12-01 株式会社東芝 Signal processing method, signal processing device, and cutting work abnormality detection device
JP7002417B2 (en) * 2018-07-04 2022-01-20 株式会社明電舎 Equipment abnormality diagnosis device and abnormality diagnosis method

Also Published As

Publication number Publication date
JP6731562B1 (en) 2020-07-29
WO2021157111A1 (en) 2021-08-12
JP2021124464A (en) 2021-08-30

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