System and method to determine electric motor efficiency nonintrusively

Lu, Bin; Habetler, Thomas G; Harley, Ronald G

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Title: System and method to determine electric motor efficiency nonintrusively

Abstract

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.

Inventors:

Lu, Bin ^[1]; Habetler, Thomas G ^[2]; Harley, Ronald G ^[3]

Kenosha, WI
Snellville, GA
Lawrenceville, GA

Issue Date:: 2011-08-30

Research Org.:: Eaton Corporation (Cleveland, OH)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1023913

Patent Number(s):: 8010318

Application Number:: 12/132,151

Assignee:: Eaton Corporation (Cleveland, OH)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES

H - ELECTRICITY H02 - GENERATION H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS

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G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
G01R31/343 - {in operation}

H - ELECTRICITY H02 - GENERATION H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS
H02P23/14 - Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage

Show less

DOE Contract Number:: FC36-04GO14000

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Lu, Bin, Habetler, Thomas G, and Harley, Ronald G. System and method to determine electric motor efficiency nonintrusively.  United States: N. p., 2011. 
        Web.

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                    Lu, Bin, Habetler, Thomas G, & Harley, Ronald G. System and method to determine electric motor efficiency nonintrusively.  United States.

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                    Lu, Bin, Habetler, Thomas G, and Harley, Ronald G. Tue .  
        "System and method to determine electric motor efficiency nonintrusively".  United States.  https://www.osti.gov/servlets/purl/1023913.

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@article{osti_1023913,

  title        = {System and method to determine electric motor efficiency nonintrusively},

  author       = {Lu, Bin and Habetler, Thomas G and Harley, Ronald G},

  abstractNote = {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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2011},

  month        = {8}

}

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Works referenced in this record:

A self-tuning closed-loop flux observer for sensorless torque control of standard induction machines
journal, September 1997

Hurst, K. D.; Habetler, T. G.; Griva, G.
IEEE Transactions on Power Electronics, Vol. 12, Issue 5
https://doi.org/10.1109/63.622998

Sensorless speed measurement using current harmonic spectral estimation in induction machine drives
journal, January 1996

Hurst, K. D.; Habetler, T. G.
IEEE Transactions on Power Electronics, Vol. 11, Issue 1
https://doi.org/10.1109/63.484418

Comparison of induction motor field efficiency evaluation methods
journal, January 1998

Hsu, J. S.; Kueck, J. D.; Olszewski, M.
IEEE Transactions on Industry Applications, Vol. 34, Issue 1
https://doi.org/10.1109/28.658732

A comparison of spectrum estimation techniques for sensorless speed detection in induction machines
journal, January 1997

Hurst, K. D.; Habetler, T. G.
IEEE Transactions on Industry Applications, Vol. 33, Issue 4
https://doi.org/10.1109/28.605730

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Similar Records

Title: System and method to determine electric motor efficiency nonintrusively

Abstract

Citation Formats

A self-tuning closed-loop flux observer for sensorless torque control of standard induction machines journal, September 1997

Sensorless speed measurement using current harmonic spectral estimation in induction machine drives journal, January 1996

Comparison of induction motor field efficiency evaluation methods journal, January 1998

A comparison of spectrum estimation techniques for sensorless speed detection in induction machines journal, January 1997

A self-tuning closed-loop flux observer for sensorless torque control of standard induction machines
journal, September 1997

Sensorless speed measurement using current harmonic spectral estimation in induction machine drives
journal, January 1996

Comparison of induction motor field efficiency evaluation methods
journal, January 1998

A comparison of spectrum estimation techniques for sensorless speed detection in induction machines
journal, January 1997