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:
-
- Kenosha, WI
- Snellville, GA
- Atlanta, GA
- West Bend, WI
- Issue 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)
- 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
- 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:
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journal, August 1980
- Paice, Derek A.
- IEEE Transactions on Industrial Electronics and Control Instrumentation, Vol. IECI-27, Issue 3
An online stator winding resistance estimation technique for temperature monitoring of line-connected induction machines
journal, May 2003
- Lee, Sang-Bin; Habetler, T. G.
- IEEE Transactions on Industry Applications, Vol. 39, Issue 3, p. 685-694
A remote and sensorless thermal protection scheme for small line-connected AC machines
journal, September 2003
- Lee, Sang-Bin; Habetler, T. G.
- IEEE Transactions on Industry Applications, Vol. 39, Issue 5, p. 1323-1332