System and method of detecting cavitation in pumps
Patent
·
OSTI ID:1397258
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.
- Research Organization:
- Eaton Corporation, Cleveland, OH (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC36-04GO14000
- Assignee:
- Eaton Corporation
- Patent Number(s):
- 9,777,748
- Application Number:
- 12/753,930
- OSTI ID:
- 1397258
- Country of Publication:
- United States
- Language:
- English
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