Dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine

Qu, Ronghai; Lipo, Thomas A.

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Title: Dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine

Abstract

The present invention provides a novel dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine. The present invention improves electrical machine torque density and efficiency. At least one concentric surface-mounted permanent magnet dual-rotor is located inside and outside of a torus-shaped stator with back-to-back windings, respectively. The machine substantially improves machine efficiency by reducing the end windings and boosts the torque density by at least doubling the air gap and optimizing the machine aspect ratio.

Inventors:: Qu, Ronghai; Lipo, Thomas A.

Issue Date:: 2005-08-02

Research Org.:: Wisconsin Alumni Research Foundation, Madison, WI (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1175450

Patent Number(s):: 6924574

Application Number:: 10/449,338

Assignee:: Wisconsin Alumni Research Foundation

Patent Classifications (CPCs):: H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES

Show more

H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
H02K21/12 - with stationary armatures and rotating magnets
H02K21/14 - with magnets rotating within the armatures
H02K21/16 - having annular armature cores with salient poles
H02K21/22 - with magnets rotating around the armatures, e.g. flywheel magnetos
H02K21/222 - {Flywheel magnetos}

Show less

DOE Contract Number:: AC36-99-GO10337

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Qu, Ronghai, and Lipo, Thomas A. Dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine.  United States: N. p., 2005. 
        Web.

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                    Qu, Ronghai, & Lipo, Thomas A. Dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine.  United States.

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                    Qu, Ronghai, and Lipo, Thomas A. Tue .  
        "Dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine".  United States.  https://www.osti.gov/servlets/purl/1175450.

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@article{osti_1175450,

  title        = {Dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine},

  author       = {Qu, Ronghai and Lipo, Thomas A.},

  abstractNote = {The present invention provides a novel dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine. The present invention improves electrical machine torque density and efficiency. At least one concentric surface-mounted permanent magnet dual-rotor is located inside and outside of a torus-shaped stator with back-to-back windings, respectively. The machine substantially improves machine efficiency by reducing the end windings and boosts the torque density by at least doubling the air gap and optimizing the machine aspect ratio.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2005},

  month        = {8}

}

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Works referenced in this record:

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A brushless DC motor of a new structure with reduced torque fluctuation
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Interior Permanent-Magnet Synchronous Motors for Adjustable-Speed Drives
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Analysis of flux leakage in a brushless permanent-magnet motor with embedded magnets
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A Review of the Integral-Horsepower Switched Reluctance Drive
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Analytical prediction of the cogging torque in radial-field permanent magnet brushless motors
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Zhu, Z. Q.; Howe, D.
IEEE Transactions on Magnetics, Vol. 28, Issue 2
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Low-cost compact permanent magnet machine for adjustable-speed pump application
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Caricchi, F.; Crescimbini, F.; Honorati, O.
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Prediction of cogging torque using the flux-MMF diagram technique
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Deodhar, R. P.; Staton, D. A.; Jahns, T. M.
IEEE Transactions on Industry Applications, Vol. 32, Issue 3
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Recent progress in the development in solid-state AC motor drives
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Lipo, T. A.
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Torque-ripple minimization with indirect position and speed sensing for switched reluctance motors
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Islam, M. S.; Husain, J.
IEEE Transactions on Industrial Electronics, Vol. 47, Issue 5
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Torque Production in Permanent-Magnet Synchronous Motor Drives with Rectangular Current Excitation
journal, July 1984

Jahns, Thomas M.
IEEE Transactions on Industry Applications, Vol. IA-20, Issue 4
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Transducerless position and velocity estimation in induction and salient AC machines
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Jansen, P. L.; Lorenz, R. D.
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Reduction of cogging torque in permanent magnet motors
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Power electronics and motion control-technology status and recent trends
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An analysis of the cogging torque of a dc motor and a new technique of reducing the cogging torque
journal, September 1983

Goto, Makoto; Kobayashi, Kazutsugu
Electrical Engineering in Japan, Vol. 103, Issue 5
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Toroidal Winding Geometry for High Voltage Superconducting Alternators
journal, November 1974

Steeves, M. M.; Kirtley, J. L.
IEEE Transactions on Power Apparatus and Systems, Vol. PAS-93, Issue 6
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Study of Cogging Torque in Permanent Magnet Machines
journal, June 1999

Keyhani, C. B. Studer, T. Sebastian, A.
Electric Machines & Power Systems, Vol. 27, Issue 7
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Design and Performance of a Converter Optimized AC Machine
journal, July 1984

Lipo, Thomas A.; Wang, Feng X.
IEEE Transactions on Industry Applications, Vol. IA-20, Issue 4
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Optimal current control strategies for surface-mounted permanent-magnet synchronous machine drives
journal, January 1999

Chapman, P. L.; Sudhoff, S. D.; Whitcomb, C. A.
IEEE Transactions on Energy Conversion, Vol. 14, Issue 4
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Observer-based direct field orientation: analysis and comparison of alternative methods
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Jansen, P. L.; Lorenz, R. D.; Novotny, D. W.
IEEE Transactions on Industry Applications, Vol. 30, Issue 4
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A simple and robust adaptive controller for detuning correction in field-oriented induction machines
journal, January 1992

Moreira, J. C.; Hung, K. T.; Lipo, T. A.
IEEE Transactions on Industry Applications, Vol. 28, Issue 6
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Motion control with induction motors
journal, January 1994

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A comparison of power density for axial flux machines based on general purpose sizing equations
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Huang, Surong; Luo, Jian; Leonardi, F.
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journal, March 1993

Ishikawa, T.; Slemon, G. R.
IEEE Transactions on Magnetics, Vol. 29, Issue 2
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Converter Volt-Ampere Requirements of the Switched Reluctance Motor Drive
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Similar Records

Title: Dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine

Abstract

Citation Formats

Double-Rotor Induction Motor journal, July 1969

A brushless DC motor of a new structure with reduced torque fluctuation journal, January 1985

Pulsating torque minimization techniques for permanent magnet AC motor drives-a review journal, April 1996

Interior Permanent-Magnet Synchronous Motors for Adjustable-Speed Drives journal, July 1986

Field circuit analysis of permanent magnet synchronous motors journal, July 1994

High-Performance Switched Reluctance Brushless Drives journal, July 1986

Analysis of flux leakage in a brushless permanent-magnet motor with embedded magnets journal, January 1999

A Review of the Integral-Horsepower Switched Reluctance Drive journal, July 1986

Variable-speed switched reluctance motors journal, January 1980

Simulation of a four Phase Switched Reluctance Motor Including the Effects of Mutual Coupling journal, January 1989

Analytical prediction of the cogging torque in radial-field permanent magnet brushless motors journal, March 1992

Low-cost compact permanent magnet machine for adjustable-speed pump application journal, January 1998

Prediction of cogging torque using the flux-MMF diagram technique journal, January 1996

Recent progress in the development in solid-state AC motor drives journal, April 1988

Torque-ripple minimization with indirect position and speed sensing for switched reluctance motors journal, January 2000

Torque Production in Permanent-Magnet Synchronous Motor Drives with Rectangular Current Excitation journal, July 1984

Transducerless position and velocity estimation in induction and salient AC machines journal, January 1995

Reduction of cogging torque in permanent magnet motors journal, January 1988

Power electronics and motion control-technology status and recent trends journal, January 1993

An analysis of the cogging torque of a dc motor and a new technique of reducing the cogging torque journal, September 1983

Toroidal Winding Geometry for High Voltage Superconducting Alternators journal, November 1974

Study of Cogging Torque in Permanent Magnet Machines journal, June 1999

Design and Performance of a Converter Optimized AC Machine journal, July 1984

Optimal current control strategies for surface-mounted permanent-magnet synchronous machine drives journal, January 1999

Observer-based direct field orientation: analysis and comparison of alternative methods journal, January 1994

A simple and robust adaptive controller for detuning correction in field-oriented induction machines journal, January 1992

Motion control with induction motors journal, January 1994

Sizing Equations for Electrical Machinery journal, March 1987

A comparison of power density for axial flux machines based on general purpose sizing equations journal, June 1999

A method of reducing ripple torque in permanent magnet motors without skewing journal, March 1993

Synchronous Reluctance Machines-A Viable Alternative for AC Drives? journal, November 1991

Converter Volt-Ampere Requirements of the Switched Reluctance Motor Drive journal, September 1985

Soft magnetic composite materials - use for electrical machines conference, January 1995

A general approach to sizing and power density equations for comparison of electrical machines journal, January 1998

Design and implementation of an adaptive controller for torque ripple minimization in PM synchronous motors journal, September 2000

Double-Rotor Induction Motor
journal, July 1969

A brushless DC motor of a new structure with reduced torque fluctuation
journal, January 1985

Pulsating torque minimization techniques for permanent magnet AC motor drives-a review
journal, April 1996

Interior Permanent-Magnet Synchronous Motors for Adjustable-Speed Drives
journal, July 1986

Field circuit analysis of permanent magnet synchronous motors
journal, July 1994

High-Performance Switched Reluctance Brushless Drives
journal, July 1986

Analysis of flux leakage in a brushless permanent-magnet motor with embedded magnets
journal, January 1999

A Review of the Integral-Horsepower Switched Reluctance Drive
journal, July 1986

Variable-speed switched reluctance motors
journal, January 1980

Simulation of a four Phase Switched Reluctance Motor Including the Effects of Mutual Coupling
journal, January 1989

Analytical prediction of the cogging torque in radial-field permanent magnet brushless motors
journal, March 1992

Low-cost compact permanent magnet machine for adjustable-speed pump application
journal, January 1998

Prediction of cogging torque using the flux-MMF diagram technique
journal, January 1996

Recent progress in the development in solid-state AC motor drives
journal, April 1988

Torque-ripple minimization with indirect position and speed sensing for switched reluctance motors
journal, January 2000

Torque Production in Permanent-Magnet Synchronous Motor Drives with Rectangular Current Excitation
journal, July 1984

Transducerless position and velocity estimation in induction and salient AC machines
journal, January 1995

Reduction of cogging torque in permanent magnet motors
journal, January 1988

Power electronics and motion control-technology status and recent trends
journal, January 1993

An analysis of the cogging torque of a dc motor and a new technique of reducing the cogging torque
journal, September 1983

Toroidal Winding Geometry for High Voltage Superconducting Alternators
journal, November 1974

Study of Cogging Torque in Permanent Magnet Machines
journal, June 1999

Design and Performance of a Converter Optimized AC Machine
journal, July 1984

Optimal current control strategies for surface-mounted permanent-magnet synchronous machine drives
journal, January 1999

Observer-based direct field orientation: analysis and comparison of alternative methods
journal, January 1994

A simple and robust adaptive controller for detuning correction in field-oriented induction machines
journal, January 1992

Motion control with induction motors
journal, January 1994

Sizing Equations for Electrical Machinery
journal, March 1987

A comparison of power density for axial flux machines based on general purpose sizing equations
journal, June 1999

A method of reducing ripple torque in permanent magnet motors without skewing
journal, March 1993

Synchronous Reluctance Machines-A Viable Alternative for AC Drives?
journal, November 1991

Converter Volt-Ampere Requirements of the Switched Reluctance Motor Drive
journal, September 1985

Soft magnetic composite materials - use for electrical machines
conference, January 1995

A general approach to sizing and power density equations for comparison of electrical machines
journal, January 1998

Design and implementation of an adaptive controller for torque ripple minimization in PM synchronous motors
journal, September 2000