Ronghai Qu from 7 Wind Way, Clifton Park Center, NY 12065, age 55, Phone: 5183836178

Resumes

Professor

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Location:

7 west Wind Way, Clifton Park, NY 12065

Industry:

Research

Work:

GE GRC
Senior Elec. Engineer
Huazhong University of Science and Technology
Professor
GE Global Research 2003 - 2010
Senior Professional Engineer
General Electric Global Research 2003 - 2010
Senior Engineer

Education:

University of Wisconsin-Madison 1998 - 2002
PhD, Electric Engineering Tsinghua University

Us Patents

Dual-Rotor, Radial-Flux, Toroidally-Wound, Permanent-Magnet Machine
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US Patent:

6924574, Aug 2, 2005
Filed:

May 30, 2003
Appl. No.:

10/449338
Inventors:

Ronghai Qu - Clifton Park NY, US
Thomas A. Lipo - Middleton WI, US
Assignee:

Wisconsin Alumni Research Foundation - Madison WI
International Classification:

H02K016/00
US Classification:

310114, 310112, 310 51
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.

Superconducting Rotating Machines With Stationary Field Coils And Axial Airgap Flux
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US Patent:

7049724, May 23, 2006
Filed:

Mar 3, 2004
Appl. No.:

10/792503
Inventors:

Ronghai Qu - Clifton Park NY, US
James William Bray - Schenectady NY, US
Assignee:

General Electric Company - Niskayuna NY
International Classification:

H02K 1/00
H02K 31/00
US Classification:

310180, 310178, 310254, 310268
Abstract:

A machine, such as a motor or generator, includes a rotatable rotor assembly comprising a plurality of salient poles and a stationary stator assembly comprising a superconducting field coil. The superconducting field coil and the salient poles are configured relative to each other such when the rotor assembly is rotated relative to the stator assembly around a predetermined axis, a rotating magnetic field is produced with an airgap flux direction substantially along the predetermined axis.

Electrical Machine With Double-Sided Rotor
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US Patent:

7154191, Dec 26, 2006
Filed:

Jun 30, 2004
Appl. No.:

10/882911
Inventors:

Patrick Lee Jansen - Alplaus NY, US
James Patrick Lyons - Niskayuna NY, US
Ronghai Qu - Clifton Park NY, US
James Michael Fogarty - Schenectady NY, US
Assignee:

General Electric Company - Schenectady NY
International Classification:

F03D 9/00
US Classification:

290 55, 290 44
Abstract:

Machines useful for wind turbine and ship propulsion purposes include a double-sided generator or motor with two concentric air gaps. In one embodiment, the machine includes a double-sided rotor with an inner rotor side and an outer rotor side; and a stator with an inner stator core and an outer stator core, wherein the double-sided rotor is concentrically disposed between the inner stator core and the outer stator core.

Electrical Machine With Double-Sided Lamination Stack
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US Patent:

7154192, Dec 26, 2006
Filed:

Sep 27, 2004
Appl. No.:

10/951329
Inventors:

Patrick Lee Jansen - Alplaus NY, US
James Patrick Lyons - Niskayuna NY, US
Ronghai Qu - Clifton Park NY, US
James Michael Fogarty - Schenectady NY, US
Bharat Sampathkumaran Bagepalli - Niskayuna NY, US
Aniruddha Dattatraya Gadre - Rexford NY, US
Jivtesh Garg - Schenectady NY, US
Fulton Jose Lopez - Clifton Park NY, US
Assignee:

General Electric Company - Schenectady NY
International Classification:

F03D 9/00
US Classification:

290 55
Abstract:

The machine includes a rotor with an inner rotor core and an outer rotor core and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core of the wind turbine generator. The double-sided stator is configured to enable at least a portion of magnetic flux to be shared between the inner stator side and the outer stator side. Examples of particularly useful embodiments for the machine include wind turbine generators and ship propulsion motors.

Electrical Machine With Double-Sided Stator
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US Patent:

7154193, Dec 26, 2006
Filed:

Sep 27, 2004
Appl. No.:

10/951335
Inventors:

Patrick Lee Jansen - Alplaus NY, US
James Patrick Lyons - Niskayuna NY, US
Ronghai Qu - Clifton Park NY, US
James Michael Fogarty - Schenectady NY, US
Assignee:

General Electric Company - Schenectady NY
International Classification:

F03D 9/00
US Classification:

290 55, 290 44
Abstract:

Machines useful for wind turbine and ship propulsion purposes include a wind turbine generator or a ship propulsion motor with two concentric air gaps. In one embodiment, the machine includes a rotor with an inner rotor core and an outer rotor core; and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core.

Method And Apparatus For Wind Turbine Air Gap Control
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US Patent:

7180204, Feb 20, 2007
Filed:

Jan 7, 2005
Appl. No.:

11/031259
Inventors:

James Jonathan Grant - Niskayuna NY, US
Bharat Sampathkumaran Bagepalli - Niskayuna NY, US
Patrick Lee Jansen - Scotia NY, US
Paul Stephen DiMascio - Greer SC, US
Aniruddha Dattatraya Gadre - Rexford NY, US
Ronghai Qu - Clifton Park NY, US
Assignee:

General Electric Company - Schenectady NY
International Classification:

F03D 9/00
US Classification:

290 55
Abstract:

Methods and apparatus for assembling a wind turbine generator are provided. The wind turbine generator includes a core and a plurality of stator windings circumferentially spaced about a generator longitudinal axis, a rotor rotatable about the generator longitudinal axis wherein the rotor includes a plurality of magnetic elements coupled to a radially outer periphery of the rotor such that an airgap is defined between the stator windings and the magnetic elements and the plurality of magnetic elements including a radially inner periphery having a first diameter. The wind turbine generator also includes a bearing including a first member in rotatable engagement with a radially inner second member, the first member including a radially outer periphery, a diameter of the radially outer periphery of the first member being substantially equal to the first diameter, the rotor coupled to the stator through the bearing such that a substantially uniform airgap is maintained.

Superconducting Rotating Machines With Stationary Field Coils
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US Patent:

7315103, Jan 1, 2008
Filed:

Oct 13, 2005
Appl. No.:

11/250013
Inventors:

Ronghai Qu - Clifton Park NY, US
James William Bray - Niskayuna NY, US
Assignee:

General Electric Company - Niskayuna NY
International Classification:

H02K 1/00
H02K 31/00
US Classification:

310180, 310178, 310254, 310268
Abstract:

A machine includes a rotatable rotor assembly having a number of salient poles. The machine further includes a stationary stator assembly having concentric inner and outer stators, at least one stationary superconducting field coil and at least one stator coil. The stationary superconducting field coil is disposed between the inner and outer stators and is mounted on at least one of the inner and outer stators. The stationary superconducting field coil and the salient poles are configured relative to each other, such that when the rotor assembly is rotated relative to the stator assembly around a predetermined axis, a rotating magnetic field is produced with an airgap flux direction substantially along the predetermined axis. The interaction between the stationary superconducting field coil and the rotating poles provides the only source of a time varying magnetic flux supplied to the stator coil.

Superconducting Rotating Machines With Stationary Field Coils
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US Patent:

7489060, Feb 10, 2009
Filed:

Jun 30, 2006
Appl. No.:

11/479700
Inventors:

Ronghai Qu - Clifton Park NY, US
James William Bray - Niskayuna NY, US
Assignee:

General Electric Company - Niskayuna NY
International Classification:

H02K 31/00
US Classification:

310178, 310168, 310268
Abstract:

A machine includes a shaft adapted to rotate about a longitudinal axis and formed of a magnetic material and a rotor assembly rotationally engaged with the shaft The rotor assembly includes a pair of rotor disks comprising a magnetic material, each of the rotor disks having a number of magnetic poles, the magnetic poles being spaced apart circumferentially. The rotor disks are coupled to the shaft for rotation about the shaft and generation of a rotating permeance wave. The machine further includes a stator assembly that includes a magnetic core stator disposed between the rotor disks, a number of armature windings supported on the magnetic core stator, and a stationary superconducting field coil disposed between the magnetic core stator and the shaft. The stationary superconducting field coil is configured as a stationary magneto-motive force (MMF) source for the rotating permeance wave produced by the rotor assembly to produce a rotating magnetic field.