System and method for bearing fault detection using stator current noise cancellation

Patent · Tue Aug 17 04:00:00 EDT 2010

OSTI ID:1013814

Zhou, Wei ^[1]; Lu, Bin ^[2]; Habetler, Thomas G ^[3]; Harley, Ronald G ^[4]; Theisen, Peter J ^[5]

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1. Los Angeles, CA
2. Kenosha, WI
3. Snellville, GA
4. Lawrenceville, GA
5. West Bend, WI

A system and method for detecting incipient mechanical motor faults by way of current noise cancellation is disclosed. The system includes a controller configured to detect indicia of incipient mechanical motor faults. The controller further includes a processor programmed to receive a baseline set of current data from an operating motor and define a noise component in the baseline set of current data. The processor is also programmed to repeatedly receive real-time operating current data from the operating motor and remove the noise component from the operating current data in real-time to isolate any fault components present in the operating current data. The processor is then programmed to generate a fault index for the operating current data based on any isolated fault components.

• Research Organization: Eaton Corporation (Cleveland, OH)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC36-04GO14000
• Assignee: Eaton Corporation (Cleveland, OH)
• Patent Number(s): 7,777,516
• Application Number: 12/132,056
• OSTI ID: 1013814
• Country of Publication: United States
• Language: English