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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:
 [1];  [2];  [3]
  1. Kenosha, WI
  2. Snellville, GA
  3. Lawrenceville, GA
Publication Date:
Research Org.:
Eaton Corporation (Cleveland, OH)
Sponsoring Org.:
USDOE
OSTI Identifier:
1023913
Patent Number(s):
8,010,318
Application Number:
12/132,151
Assignee:
Eaton Corporation (Cleveland, OH)
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.
Lu, Bin, Habetler, Thomas G, & Harley, Ronald G. System and method to determine electric motor efficiency nonintrusively. United States.
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.
@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}
}

Patent:

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