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Title: System and method for determining stator winding resistance in an AC motor

Abstract

A system and method for determining stator winding resistance in an AC motor is disclosed. The system includes a circuit having an input connectable to an AC source and an output connectable to an input terminal of an AC motor. The circuit includes at least one contactor and at least one switch to control current flow and terminal voltages in the AC motor. The system also includes a controller connected to the circuit and configured to modify a switching time of the at least one switch to create a DC component in an output of the system corresponding to an input to the AC motor and determine a stator winding resistance of the AC motor based on the injected DC component of the voltage and current.

Inventors:
 [1];  [2];  [3];  [4]
  1. Kenosha, WI
  2. Snellville, GA
  3. Atlanta, GA
  4. West Bend, WI
Publication Date:
Research Org.:
Eaton Corporation (Cleveland, OH)
Sponsoring Org.:
USDOE
OSTI Identifier:
1016727
Patent Number(s):
7952318
Application Number:
12/132,484
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, Zhang, Pinjia, and Theisen, Peter J. System and method for determining stator winding resistance in an AC motor. United States: N. p., 2011. Web.
Lu, Bin, Habetler, Thomas G, Zhang, Pinjia, & Theisen, Peter J. System and method for determining stator winding resistance in an AC motor. United States.
Lu, Bin, Habetler, Thomas G, Zhang, Pinjia, and Theisen, Peter J. Tue . "System and method for determining stator winding resistance in an AC motor". United States. https://www.osti.gov/servlets/purl/1016727.
@article{osti_1016727,
title = {System and method for determining stator winding resistance in an AC motor},
author = {Lu, Bin and Habetler, Thomas G and Zhang, Pinjia and Theisen, Peter J},
abstractNote = {A system and method for determining stator winding resistance in an AC motor is disclosed. The system includes a circuit having an input connectable to an AC source and an output connectable to an input terminal of an AC motor. The circuit includes at least one contactor and at least one switch to control current flow and terminal voltages in the AC motor. The system also includes a controller connected to the circuit and configured to modify a switching time of the at least one switch to create a DC component in an output of the system corresponding to an input to the AC motor and determine a stator winding resistance of the AC motor based on the injected DC component of the voltage and current.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {5}
}

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Works referenced in this record:

Motor Thermal Protection by Continuous Monitoring of Winding Resistance
journal, August 1980

  • Paice, Derek A.
  • IEEE Transactions on Industrial Electronics and Control Instrumentation, Vol. IECI-27, Issue 3
  • DOI: 10.1109/TIECI.1980.351666