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

Abstract

A system and method for determining the stator winding resistance of AC motors is provided. The system includes an AC motor drive having an input connectable to an AC source and an output connectable to an input terminal of an AC motor, a pulse width modulation (PWM) converter having switches therein to control current flow and terminal voltages in the AC motor, and a control system connected to the PWM converter. The control system generates a command signal to cause the PWM converter to control an output of the AC motor drive corresponding to an input to the AC motor, selectively generates a modified command signal to cause the PWM converter to inject a DC signal into the output of the AC motor drive, and determines a stator winding resistance of the AC motor based on the DC signal of at least one of the voltage and current.

Inventors:
; ;
Publication Date:
Research Org.:
Eaton Corporation (Cleveland, OH)
Sponsoring Org.:
USDOE
OSTI Identifier:
1082734
Patent Number(s):
8,384,338
Application Number:
12/363,413
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 Zhang, Pinjia. System and method for determining stator winding resistance in an AC motor using motor drives. United States: N. p., 2013. Web.
Lu, Bin, Habetler, Thomas G, & Zhang, Pinjia. System and method for determining stator winding resistance in an AC motor using motor drives. United States.
Lu, Bin, Habetler, Thomas G, and Zhang, Pinjia. Tue . "System and method for determining stator winding resistance in an AC motor using motor drives". United States. https://www.osti.gov/servlets/purl/1082734.
@article{osti_1082734,
title = {System and method for determining stator winding resistance in an AC motor using motor drives},
author = {Lu, Bin and Habetler, Thomas G and Zhang, Pinjia},
abstractNote = {A system and method for determining the stator winding resistance of AC motors is provided. The system includes an AC motor drive having an input connectable to an AC source and an output connectable to an input terminal of an AC motor, a pulse width modulation (PWM) converter having switches therein to control current flow and terminal voltages in the AC motor, and a control system connected to the PWM converter. The control system generates a command signal to cause the PWM converter to control an output of the AC motor drive corresponding to an input to the AC motor, selectively generates a modified command signal to cause the PWM converter to inject a DC signal into the output of the AC motor drive, and determines a stator winding resistance of the AC motor based on the DC signal of at least one of the voltage and current.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {2}
}

Patent:

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