公开(公告)号：US20210098983A1

公开(公告)日：2021-04-01

申请号：US16589272

申请日：2019-10-01

Applicant: General Electric Company

Inventor： Nathaniel Benedict Hawes ,  Yuntao Xu ,  Nidhishri Tapadia ,  David Allan Torrey ,  Anbo Wu

IPC: H02H7/00 ,  H03H7/18 ,  H01P1/18 ,  H02K55/04

Abstract: A wind turbine includes a superconducting generator having an armature and a superconducting field winding set. The armature includes at least one multiphase armature winding set having a plurality of armature windings. The superconducting field winding set is separated by a gap from the armature. The superconducting field winding set includes a plurality of field windings, wherein one of the armature winding set and superconducting field winding set is connectable to rotate with a rotating component of the wind turbine and another of the armature and the superconducting field winding set being non-rotating. The wind turbine also includes a controllable power converter coupled to the at least one multiphase armature winding set and a controller configured to control switching operations of the controllable power converter to effect a phase shift among the plurality of armature windings.

公开(公告)号：US20210013759A1

公开(公告)日：2021-01-14

申请号：US16597633

申请日：2019-10-09

Applicant: General Electric Company

Inventor： David Allan Torrey ,  Anil R. Duggal ,  Bugra Han Ertas ,  William D. Gerstler ,  Jie Jerry Liu ,  Weijun Yin

IPC: H02K3/30 ,  H02K9/22 ,  H02K9/19 ,  H02K3/02 ,  H02K7/00 ,  H02K7/08 ,  H02K15/04

Abstract: A powered system that has an electric power system with a stator having plural poles with each pole having a conductive winding that may surround the corresponding pole and may be configured to generate a magnetic field, and a rotor that may be configured to rotate in response to the magnetic field generated by the stator. The at least one of the conductive windings may be insulated with an insulation material configured to conduct heat from the at least one conductive winding while operating at a temperature above 600° C.

公开(公告)号：US20200350805A1

公开(公告)日：2020-11-05

申请号：US16400253

申请日：2019-05-01

Applicant: General Electric Company

Inventor： David Allan Torrey ,  Nidhishri Tapadia ,  Joseph Zierer ,  Anbo Wu

IPC: H02K11/01 ,  H02K55/04 ,  F03D1/06

Abstract: An annular rotating armature is presented. The annular rotating armature includes an armature winding having a plurality of coils, an armature support structure and a magnetic shield disposed between the armature winding and the armature support structure. The magnetic shield having a first magnetic shield ring, a second magnetic shield ring disposed concentric to the first magnetic shield ring and coupled to the first magnetic shield ring via a magnetic shield bridge link. An air gap is formed between the first magnetic shield ring and the second magnetic shield ring. The magnetic shield bridge link is disposed within the air gap. A superconducting generator including the annular rotating armature and a wind turbine having such superconducting generator are also presented.

公开(公告)号：US10014751B2

公开(公告)日：2018-07-03

申请号：US14716415

申请日：2015-05-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Tsarafidy Raminosoa ,  Karthik Kumar Bodla ,  Ayman Mohamed Fawzi El-Refaie ,  David Allan Torrey

IPC: H02K3/30 ,  H02K9/22 ,  H02K3/34

CPC classification number: H02K9/22 ,  H02K3/30 ,  H02K3/345

Abstract: A stator assembly that includes a graphite sheet-like element that has fold(s) so as to define at least two planar sections. The face of one of the planar section abuts a surface of a heat generating location(s) of the stator assembly and a face of another planar section abuts one the tooth or the slot bottom of the stator assembly. Also, a subassembly that includes an electrical machine stator assembly that includes a sheet-like element of a material having high thermal conductivity, wherein a portion of the element abuts the end winding(s) such that the sheet-like element conducts heat to the magnetic core, the stator housing, and/or a winding heat conduction element.

公开(公告)号：US09634585B2

公开(公告)日：2017-04-25

申请号：US14970670

申请日：2015-12-16

Applicant: GENERAL ELECTRIC COMPANY

Inventor： David Allan Torrey

IPC: H02P6/10 ,  H02P25/098 ,  H02P25/092

CPC classification number: H02P6/10 ,  H02P25/092 ,  H02P25/098

Abstract: A method of controlling torque ripple in an electrical machine that includes a field winding for creating nominally constant field current using DC current and an armature winding for creating a rotating magnetic field using AC current, calls for superimposing a spatially varying current component on to the DC current of the field winding. Other methods are also disclosed that are suitable for electrical machines that have a winding that is excited with nominal DC current including SRMs, FSMs, and wound-field synchronous motors.

公开(公告)号：US11677289B2

公开(公告)日：2023-06-13

申请号：US16597633

申请日：2019-10-09

Applicant: General Electric Company

Inventor： David Allan Torrey ,  Anil R. Duggal ,  Bugra Han Ertas ,  William D. Gerstler ,  Jie Jerry Liu ,  Weijun Yin

IPC: H02K3/30 ,  H02K15/04 ,  H02K7/00 ,  H02K7/08 ,  H02K3/02 ,  H02K9/22 ,  H02K9/20

CPC classification number: H02K3/30 ,  H02K3/02 ,  H02K7/003 ,  H02K7/08 ,  H02K9/20 ,  H02K9/227 ,  H02K15/04

Abstract: A powered system that has an electric power system with a stator having plural poles with each pole having a conductive winding that may surround the corresponding pole and may be configured to generate a magnetic field, and a rotor that may be configured to rotate in response to the magnetic field generated by the stator. The at least one of the conductive windings may be insulated with an insulation material configured to conduct heat from the at least one conductive winding while operating at a temperature above 600° C.

公开(公告)号：US20210131429A1

公开(公告)日：2021-05-06

申请号：US16674614

申请日：2019-11-05

Applicant: General Electric Company

Inventor： David Allan Torrey ,  Douglas C. Hofer ,  Bugra Han Ertas

IPC: F04C11/00 ,  F04C29/04

Abstract: A system may be provided that may include a first working fluid compressor configured to pressurize a working fluid, and a prime mover coupled to the first working fluid compressor and configured to provide a mechanical input into the first working fluid compressor. An exhaust assembly may be coupled to the prime mover and configured to receive exhaust heat from the prime mover, the exhaust assembly including a generator configured to generate electric current based on the exhaust heat received by the exhaust assembly. A second working fluid compressor may include an electric motor electrically and synchronously coupled to the generator and configured to pressurize the working fluid.

公开(公告)号：US20190010946A1

公开(公告)日：2019-01-10

申请号：US16128298

申请日：2018-09-11

Applicant: General Electric Company

Inventor： David Allan Torrey ,  Nathaniel Benedict Hawes, JR. ,  Ayman Mohamed Fawzi EL-Refaie ,  Muhammad Hassan Chishti

IPC: F04D13/08 ,  B01D45/12 ,  B01D21/26 ,  B01D19/00 ,  B01D17/02 ,  H02P6/15 ,  H02P5/74 ,  E21B43/12 ,  H02P6/16 ,  F04D13/10

Abstract: A fluid extraction system is presented. The fluid extraction system includes a direct current (DC) bus and a plurality of fluid extraction sub-systems configured to be electrically coupled to the DC-bus. At least one fluid extraction sub-system includes an electric machine configured to aid in the extraction of a fluid from a well. The electric machine includes a plurality of phase windings and a rotor. The at least one fluid extraction sub-system further includes a control sub-system to control a rotational speed of the rotor by selectively controlling a supply of a phase current to the plurality of phase windings such that the rotational speed of the rotor of the electric machine is different from rotational speed of a rotor of another electric machine in at least one of other fluid extraction sub-systems. Related method for controlling rotational speeds of electric machines is also presented.

公开(公告)号：US20180375456A1

公开(公告)日：2018-12-27

申请号：US15634723

申请日：2017-06-27

Applicant: General Electric Company

Inventor： Kum Kang Huh ,  Di Pan ,  David Allan Torrey ,  Nathaniel Benedict Hawes ,  Tomas Sadilek

IPC: H02P23/14 ,  H02P27/06 ,  E21B43/12

Abstract: A method includes controlling a first power output to an electric machine during a transient event. Controlling the first power output includes measuring values of the first power output provided to the electric machine during the transient event, receiving an estimated speed input of the electric machine, determining adjustment commands to compensate the first power output for the transient event of the electric machine, generating switch commands for gate drives of a variable frequency drive (VFD) based at least in part on the adjustment commands, and modifying the first power output during the transient event based on the switch commands.

公开(公告)号：US10100835B2

公开(公告)日：2018-10-16

申请号：US14939335

申请日：2015-11-12

Applicant: General Electric Company

Inventor： David Allan Torrey ,  Nathaniel Benedict Hawes

IPC: E21B43/12 ,  F04D13/08 ,  B01D19/00 ,  B01D21/26 ,  B01D17/02 ,  B01D45/12 ,  F04D13/10 ,  H02P6/15

Abstract: A fluid extraction system is presented. The fluid extraction system includes a direct current (DC) bus and a plurality of fluid extraction sub-systems configured to be electrically coupled to the DC-bus. At least one fluid extraction sub-system includes an electric machine configured to aid in the extraction of a fluid from a well. The electric machine includes a plurality of phase windings and a rotor. The at least one fluid extraction sub-system further includes a control sub-system to control a rotational speed of the rotor by selectively controlling a supply of a phase current to the plurality of phase windings such that the rotational speed of the rotor of the electric machine is different from rotational speed of a rotor of another electric machine in at least one of other fluid extraction sub-systems. Related method for controlling rotational speeds of electric machines is also presented.