System and method to determine electric motor efficiency nonintrusively
- Kenosha, WI
- Snellville, GA
- Lawrenceville, GA
A system and method for nonintrusively determining electric motor efficiency includes a processor programed to, while the motor is in operation, determine a plurality of stator input currents, electrical input data, a rotor speed, a value of stator resistance, and an efficiency of the motor based on the determined rotor speed, the value of stator resistance, the plurality of stator input currents, and the electrical input data. The determination of the rotor speed is based on one of the input power and the plurality of stator input currents. The determination of the value of the stator resistance is based on at least one of a horsepower rating and a combination of the plurality of stator input currents and the electrical input data. The electrical input data includes at least one of an input power and a plurality of stator input voltages.
- Research Organization:
- Eaton Corporation (Cleveland, OH)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC36-04GO14000
- Assignee:
- Eaton Corporation (Cleveland, OH)
- Patent Number(s):
- 8,010,318
- Application Number:
- 12/132,151
- OSTI ID:
- 1023913
- Country of Publication:
- United States
- Language:
- English
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journal | September 1997 |
Comparison of induction motor field efficiency evaluation methods
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journal | January 1998 |
A comparison of spectrum estimation techniques for sensorless speed detection in induction machines
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journal | January 1997 |
Sensorless speed measurement using current harmonic spectral estimation in induction machine drives
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journal | January 1996 |
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