MY197458A - Fluid system abnormality monitoring and diagnosis method for fluid rotary machine - Google Patents
Fluid system abnormality monitoring and diagnosis method for fluid rotary machineInfo
- 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
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.
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 (3)
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 |
BR112023017023A2 (en) | 2021-02-26 | 2023-09-26 | Sumitomo Chemical Co | Phenylacetic acid derivative, use thereof and intermediate production thereof |
WO2024127624A1 (en) * | 2022-12-16 | 2024-06-20 | Dmg森精機株式会社 | Misalignment detection method, misalignment detection device, and machine tool equipped with misalignment detection device |
Family Cites Families (5)
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 |
-
2020
- 2020-02-07 JP JP2020019890A patent/JP6731562B1/en active Active
- 2020-08-31 MY MYPI2022003855A patent/MY197458A/en unknown
- 2020-08-31 WO PCT/JP2020/032911 patent/WO2021157111A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JP2021124464A (en) | 2021-08-30 |
JP6731562B1 (en) | 2020-07-29 |
WO2021157111A1 (en) | 2021-08-12 |
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