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

Patent · 07 December 2010

OSTI ID:1011402

Zhou, Wei ^[1]; Lu, Bin ^[2]; Nowak, Michael P ^[3]; Dimino, Steven A ^[4]

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1. Los Angeles, CA
2. Kenosha, WI
3. Menomonee Falls, WI
4. Wauwatosa, 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 acquire at least on additional set of real-time operating current data from the motor during operation, redefine the noise component present in each additional set of real-time operating current data, 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): 7,847,580
• Application Number: 12/350,287
• OSTI ID: 1011402
• Country of Publication: United States
• Language: English