System and method to determine electric motor efficiency using an equivalent circuit

Lu, Bin; Habetler, Thomas G.

Advanced Search OptionsAdvanced Search queries use a traditional Term Search. For more info, see our FAQ.

All Fields:

Patent Title:

Abstract:

Assignee:

Inventor(s):

Patent Number:

Patent Classification (CPC):

All Classifications
A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
E99 - subject matter not otherwise provided for in this section
F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
G99 - subject matter not otherwise provided for in this section
H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
H04 - electric communication technique
H05 - electric techniques not otherwise provided for
H99 - subject matter not otherwise provided for in this section
Y - new / cross sectional technologies
Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

More Options ...

Title: System and method to determine electric motor efficiency using an equivalent circuit

Abstract

A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.

Inventors:: Lu, Bin; Habetler, Thomas G.

Issue Date:: Tue Oct 27 00:00:00 EDT 2015

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1224437

Patent Number(s):: 9170303

Application Number:: 13/088,846

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

Show more

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

Resource Relation:: Patent File Date: 2011 Apr 18

Country of Publication:: United States

Language:: English

Subject:: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 33 ADVANCED PROPULSION SYSTEMS

Citation Formats


                    Lu, Bin, and Habetler, Thomas G. System and method to determine electric motor efficiency using an equivalent circuit.  United States: N. p., 2015. 
        Web.

Copy to clipboard


                    Lu, Bin, & Habetler, Thomas G. System and method to determine electric motor efficiency using an equivalent circuit.  United States.

Copy to clipboard


                    Lu, Bin, and Habetler, Thomas G. Tue .  
        "System and method to determine electric motor efficiency using an equivalent circuit".  United States.  https://www.osti.gov/servlets/purl/1224437.

Copy to clipboard


                    
@article{osti_1224437,

  title        = {System and method to determine electric motor efficiency using an equivalent circuit},

  author       = {Lu, Bin and Habetler, Thomas G.},

  abstractNote = {A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Oct 27 00:00:00 EDT 2015},

  month        = {Tue Oct 27 00:00:00 EDT 2015}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Torque controller for an AC motor drive and AC motor drive embodying the same
patent, June 1987

Abbondanti, Alberto
US Patent Document 4,672,288
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4672288

Method of determining the efficiency of asynchronous motors and apparatus for carrying out the method
patent, August 1997

Benning, Wilfried
US Patent Document 5,659,232
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5659232

Sensorless estimation of rotor temperature in induction motors
patent, March 2000

Kliman, Gerald Burt; Dymond, James H.
US Patent Document 6,042,265
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6042265

Method of monitoring placement of voltage/current probes on motors
patent, May 2001

Dowling, Martin; Lang, George; Desai, Binish
US Patent Document 6,236,947
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6236947

Motor condition and performance analyzer
patent, October 2001

Dowling, Martin; Lang, George; Desai, Binish
US Patent Document 6,308,140
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6308140

Optimization tool for assembly workcell layout
patent, October 2002

Barral, David
US Patent Document 6,470,301
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6470301

Method and apparatus of detecting internal motor faults in an induction machine
patent, November 2004

Habetler, Thomas G.
US Patent Document 6,822,839
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6822839

Induction motor module and motor incorporating same
patent, March 2005

El-Ibiary, Yehia
US Patent Document 6,862,538
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6862538

System and method for identifying operational parameters of a motor
patent, November 2006

El-Ibiary, Yehia
US Patent Document 7,135,830
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7135830

Motor parameter estimation method and apparatus
patent, February 2007

El-Ibiary, Yehia
US Patent Document 7,184,902
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7184902

Estimation of real-time power system quantities using time-synchronized measurements
patent, March 2009

Scholtz, Ernst; Nuqui, Reynaldo; Finney, John D.
US Patent Document 7,499,816
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7499816

Indirect rotor resistance estimation system and method
patent, July 2009

Arnet, Beat
US Patent Document 7,560,895
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7560895

Variable stiffness support
patent, January 2010

Haynes, David F.; Williams, David L.; Smith, Michael R.
US Patent Document 7,650,819
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7650819

Method and apparatus for estimating induction motor rotor temperature
patent, August 2010

Colby, Roy S.; Gao, Zhi; Turner, Larry A.
US Patent Document 7,769,552
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7769552

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

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

An on-line stator winding resistance estimation technique for temperature monitoring of line-connected induction machines
conference, January 2001

Lee, S. -B.; Habetler, T. G.
2001 IEEE Industry Applications Society 36th Annual Meeting - IAS'01, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248)
https://doi.org/10.1109/IAS.2001.955744

Comparison of induction motor field efficiency evaluation methods
conference, January 1996

Hsu, J. S.; Kueck, J. D.; Olszewski, M.
IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting
https://doi.org/10.1109/IAS.1996.557115

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

Similar Records in DOE Patents and OSTI.GOV collections:

System and method to determine electric motor efficiency using an equivalent circuit

Patent Lu, Bin [Kenosha, WI]; Habetler, Thomas G [Snellville, GA]

A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.
Full Text Available
System and method to determine electric motor efficiency nonintrusively

Patent Lu, Bin [Kenosha, WI]; Habetler, Thomas G [Snellville, GA]; Harley, Ronald G [Lawrenceville, GA]

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 onmore » « less
Full Text Available
System and method for determining stator winding resistance in an AC motor using motor drives

Patent Lu, Bin; Habetler, Thomas G; Zhang, Pinjia

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,more » « less
Full Text Available
System and method for motor speed estimation of an electric motor

Patent Lu, Bin [Kenosha, WI]; Yan, Ting [Brookfield, WI]; Luebke, Charles John [Sussex, WI]; ...

A system and method for a motor management system includes a computer readable storage medium and a processing unit. The processing unit configured to determine a voltage value of a voltage input to an alternating current (AC) motor, determine a frequency value of at least one of a voltage input and a current input to the AC motor, determine a load value from the AC motor, and access a set of motor nameplate data, where the set of motor nameplate data includes a rated power, a rated speed, a rated frequency, and a rated voltage of the AC motor. Themore » « less
Full Text Available
Method and system for early detection of incipient faults in electric motors

Patent Parlos, Alexander G; Kim, Kyusung

A method and system for early detection of incipient faults in an electric motor are disclosed. First, current and voltage values for one or more phases of the electric motor are measured during motor operations. A set of current predictions is then determined via a neural network-based current predictor based on the measured voltage values and an estimate of motor speed values of the electric motor. Next, a set of residuals is generated by combining the set of current predictions with the measured current values. A set of fault indicators is subsequently computed from the set of residuals and themore » « less
Full Text Available

Similar Records

Title: System and method to determine electric motor efficiency using an equivalent circuit

Abstract

Citation Formats

Torque controller for an AC motor drive and AC motor drive embodying the same patent, June 1987

Method of determining the efficiency of asynchronous motors and apparatus for carrying out the method patent, August 1997

Sensorless estimation of rotor temperature in induction motors patent, March 2000

Method of monitoring placement of voltage/current probes on motors patent, May 2001

Motor condition and performance analyzer patent, October 2001

Optimization tool for assembly workcell layout patent, October 2002

Method and apparatus of detecting internal motor faults in an induction machine patent, November 2004

Induction motor module and motor incorporating same patent, March 2005

System and method for identifying operational parameters of a motor patent, November 2006

Motor parameter estimation method and apparatus patent, February 2007

Estimation of real-time power system quantities using time-synchronized measurements patent, March 2009

Indirect rotor resistance estimation system and method patent, July 2009

Variable stiffness support patent, January 2010

Method and apparatus for estimating induction motor rotor temperature patent, August 2010

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

An on-line stator winding resistance estimation technique for temperature monitoring of line-connected induction machines conference, January 2001

Comparison of induction motor field efficiency evaluation methods conference, January 1996

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

Torque controller for an AC motor drive and AC motor drive embodying the same
patent, June 1987

Method of determining the efficiency of asynchronous motors and apparatus for carrying out the method
patent, August 1997

Sensorless estimation of rotor temperature in induction motors
patent, March 2000

Method of monitoring placement of voltage/current probes on motors
patent, May 2001

Motor condition and performance analyzer
patent, October 2001

Optimization tool for assembly workcell layout
patent, October 2002

Method and apparatus of detecting internal motor faults in an induction machine
patent, November 2004

Induction motor module and motor incorporating same
patent, March 2005

System and method for identifying operational parameters of a motor
patent, November 2006

Motor parameter estimation method and apparatus
patent, February 2007

Estimation of real-time power system quantities using time-synchronized measurements
patent, March 2009

Indirect rotor resistance estimation system and method
patent, July 2009

Variable stiffness support
patent, January 2010

Method and apparatus for estimating induction motor rotor temperature
patent, August 2010

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

An on-line stator winding resistance estimation technique for temperature monitoring of line-connected induction machines
conference, January 2001

Comparison of induction motor field efficiency evaluation methods
conference, January 1996

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