System and method of detecting cavitation in pumps
Abstract
A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller having a processor programmed to repeatedly receive real-time operating current data from a motor driving a pump, generate a current frequency spectrum from the current data, and analyze current data within a pair of signature frequency bands of the current frequency spectrum. The processor is further programmed to repeatedly determine fault signatures as a function of the current data within the pair of signature frequency bands, repeatedly determine fault indices based on the fault signatures and a dynamic reference signature, compare the fault indices to a reference index, and identify a cavitation condition in a pump based on a comparison between the reference index and a current fault index.
- Inventors:
- Issue Date:
- Research Org.:
- Eaton Corporation, Cleveland, OH (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1397258
- Patent Number(s):
- 9777748
- Application Number:
- 12/753,930
- Assignee:
- Eaton Corporation
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04D - NON-POSITIVE-DISPLACEMENT PUMPS
- DOE Contract Number:
- FC36-04GO14000
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2010 Apr 05
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Lu, Bin, Sharma, Santosh Kumar, Yan, Ting, and Dimino, Steven A. System and method of detecting cavitation in pumps. United States: N. p., 2017.
Web.
Lu, Bin, Sharma, Santosh Kumar, Yan, Ting, & Dimino, Steven A. System and method of detecting cavitation in pumps. United States.
Lu, Bin, Sharma, Santosh Kumar, Yan, Ting, and Dimino, Steven A. Tue .
"System and method of detecting cavitation in pumps". United States. https://www.osti.gov/servlets/purl/1397258.
@article{osti_1397258,
title = {System and method of detecting cavitation in pumps},
author = {Lu, Bin and Sharma, Santosh Kumar and Yan, Ting and Dimino, Steven A.},
abstractNote = {A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller having a processor programmed to repeatedly receive real-time operating current data from a motor driving a pump, generate a current frequency spectrum from the current data, and analyze current data within a pair of signature frequency bands of the current frequency spectrum. The processor is further programmed to repeatedly determine fault signatures as a function of the current data within the pair of signature frequency bands, repeatedly determine fault indices based on the fault signatures and a dynamic reference signature, compare the fault indices to a reference index, and identify a cavitation condition in a pump based on a comparison between the reference index and a current fault index.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 03 00:00:00 EDT 2017},
month = {Tue Oct 03 00:00:00 EDT 2017}
}
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