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公开(公告)号：US20180097466A1
公开(公告)日：2018-04-05
申请号：US15282399
申请日：2016-09-30
Applicant: General Electric Company
Inventor： Kum Kang Huh , David Allan Torrey , Di Pan , Nathaniel Benedict Hawes , Tomas Sadilek
CPC classification number: H02P29/028 , E21B43/128 , F04D13/086 , F04D13/10 , F04D15/0088 , F04D29/22 , F04D29/426 , H02K5/132 , H02K11/26
Abstract: A method of controlling an electric motor assembly includes detecting a backspin event of an electric motor, and managing a response to the detected backspin event of the electric motor. The backspin event of the electric motor is detected based at least in part on feedback from a sensor configured to measure a current or a voltage on a cable coupled to the electric motor. The response includes communicating an alert to personnel, controlling the voltage on the cable to be less than a voltage threshold, or any combination thereof.
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公开(公告)号：US20180094512A1
公开(公告)日：2018-04-05
申请号：US15282321
申请日：2016-09-30
Applicant: General Electric Company
Inventor： Tomas Sadilek , Nathaniel Benedict Hawes , David Allan Torrey , Di Pan , Kum Kang Huh
IPC: E21B43/12 , E21B47/00 , H02P9/14 , H02P25/022 , H02P27/06
CPC classification number: E21B43/128 , E21B47/0007 , H02P9/14 , H02P21/20 , H02P25/024 , H02P27/04 , H02P27/06
Abstract: A system including a control system is provided. The control system includes a main drive that receives power from a power source and outputs a variable frequency and a variable amplitude AC voltage. The control system also includes a controller to interface with the main drive and an electric machine. The controller receives one or more electrical signals associated with an operating condition of the electric machine from one or more sensors disposed between the electric machine and the main drive. The controller determines correction information based on the received electrical signals and based on a desired operating condition of the electric machine. The controller transmits the correction information to the main drive. The correction information corresponds to a rotor position of the electric machine or operating commands configured to implement the desired operating condition of the electric machine.
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公开(公告)号：US20170282137A1
公开(公告)日：2017-10-05
申请号：US15087656
申请日：2016-03-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ashraf Said Atalla , Klaus Gebauer , Richard Lee Damren , David Allan Torrey , Sima Didari
CPC classification number: B01F13/0827 , C12M27/02 , H02K5/1282 , H02K21/24
Abstract: The system and method of the invention pertains to use of a back iron on one or both ends of the impeller to increase the magnetic field density, and thus strengthen the magnetic coupling. In addition, pie-shaped (i.e. wedge) magnets, or variations thereof, increase the utilization volume and hence provide higher torque to allow the use of less expensive material (e.g. ferrites). In another embodiment, the rotor side is constructed with a Halbach array which increases the torque without the need to add a back iron piece. In another embodiment, an axial flux stator is implemented to replace the drive-end magnets and the drive motor.
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公开(公告)号：US20160276970A1
公开(公告)日：2016-09-22
申请号：US14663691
申请日：2015-03-20
Applicant: General Electric Company
Inventor： Nathaniel Benedict Hawes , David Allan Torrey
Abstract: A controller is provided which can interface with a variable frequency drive and a motor, the controller having (a) one or more voltage and current sensors which can interface with a power line linking the variable frequency drive and the motor; and (b) a signal interface module which can receive electrical signals associated with an operating condition of the motor from the one or more voltage and current sensors. The signal interface module can correlate the received electrical signals with a rotor position of the motor, and transmit signals corresponding to rotor position, to the variable frequency drive. The data provided by the controller if conveyed as a rotor position, may cause the variable frequency drive to change one or more of its operating parameters to maintain proper synchronization of the rotor and its associated stator currents. Alternatively, the controller may directly control variable frequency drive operating parameters.
Abstract translation: 提供一种可与变频驱动器和电动机接口的控制器，所述控制器具有（a）一个或多个电压和电流传感器，其可与连接变频驱动器和电动机的电力线接口; 和（b）信号接口模块，其可以从一个或多个电压和电流传感器接收与电动机的工作状态相关联的电信号。 信号接口模块可以将接收到的电信号与电机的转子位置相关联，并将与转子位置相对应的信号传输到变频驱动器。 由控制器提供的数据作为转子位置传送可能导致变频驱动器改变其一个或多个操作参数，以保持转子及其相关定子电流的适当同步。 或者，控制器可以直接控制变频驱动器操作参数。
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公开(公告)号：US20160105135A1
公开(公告)日：2016-04-14
申请号：US14970670
申请日：2015-12-16
Applicant: GENERAL ELECTRIC COMPANY
Inventor： David Allan Torrey
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.
Abstract translation: 一种在电机中控制转矩波动的方法，其包括使用直流电流产生标称恒定电场电流的励磁绕组和用于利用交流电流产生旋转磁场的电枢绕组，要求将空间变化的电流分量叠加到直流电 电流的励磁绕组。 还公开了适用于具有被包括SRM，FSM和绕线场同步电动机的标称DC电流激励的绕组的电机的其它方法。
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Patent Agency Ranking
公开(公告)号：US11804746B2
公开(公告)日：2023-10-31
申请号：US17007003
申请日：2020-08-31
Applicant: General Electric Company
Inventor： Karthik K. Bodla , Naveenan Thiagarajan , Mohamed Osama , John Russell Yagielski , David Allan Torrey , Vandana Prabhakar Rallabandi
Abstract: An electric machine can include a stator core having a plurality of core teeth that define a plurality of core slots in a surface thereof. A winding can be housed at least partially in the core slots. The winding can include a tube defining a channel through at least a portion thereof and one or more wires disposed along a surface of the tube that is opposite the channel. A cooling system can be operably coupled with the channel and configured to move a cooling fluid through the channel.
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公开(公告)号：US11598327B2
公开(公告)日：2023-03-07
申请号：US16674614
申请日：2019-11-05
Applicant: General Electric Company
Inventor： David Allan Torrey , Douglas C. Hofer , Bugra Han Ertas
Abstract: A system includes 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 is coupled to the prime mover and is 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 includes an electric motor electrically and synchronously coupled to the generator and configured to pressurize the working fluid.
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公开(公告)号：US20220320990A1
公开(公告)日：2022-10-06
申请号：US17625123
申请日：2019-07-09
Applicant: General Electric Company
Inventor： Alexander Kagan , David Allan Torrey , Michael Parizh , Tiziana Bertoncelli , Minfeng Xu
Abstract: A superconducting generator including an armature configured to be rotated via a shaft and a stationary field disposed concentric to and radially outward from the armature. The stationary field including a superconducting field winding and a vacuum vessel having an inner wall of one of a non-magnetic material or a paramagnetic material facing the armature, an opposed outer wall of a ferromagnetic material and a plurality of sidewalls coupling the inner wall and the opposed outer wall. The superconducting field winding is disposed in the vacuum vessel. A wind turbine and method are additionally disclosed. The wind turbine includes a rotor having a plurality of blades. The wind turbine further includes a shaft coupled to the rotor. Moreover, the wind turbine includes the superconducting generator coupled to the rotor via the shaft.
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公开(公告)号：US11128231B2
公开(公告)日：2021-09-21
申请号：US16529118
申请日：2019-08-01
Applicant: General Electric Company
Inventor： Yuntao Xu , David Allan Torrey
Abstract: An energy conversion system includes a low-impedance generator having at least one armature winding set. The armature winding set includes a plurality of single-phase coils. The system also includes a current source converter assembly electrically coupled to an armature of the generator. The current source converter assembly includes at least one current source converter that includes a current source rectifier coupled to a current source inverter via a DC link and at least one capacitor across the plurality of single-phase armature coils. The capacitor(s) of the current source converter(s) is configured to absorb high frequency components of current pulses generated by the current source converter so as to minimize current ripple in a current applied to the plurality of single-phase coils.
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公开(公告)号：US11081917B2
公开(公告)日：2021-08-03
申请号：US16203621
申请日：2018-11-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： David Allan Torrey , Mohamed Osama , Joseph John Zierer , Lijun He , Andrew Thomas Cross
Abstract: An electric machine includes at least one rotor module. A rotor module includes a rotor hub having a hub body, and a plurality of first protrusions and a plurality of second protrusions. One or more first protrusions include an elongated portion and a head portion. One or more second protrusions include a wedge-shaped profile. The rotor module further includes a magnetic core having a plurality of core members disposed on the rotor hub. A core member of the plurality of core members is disposed such that the head portion of the first protrusion located between the adjacent second protrusions engages with the core member, and each of the one or more second protrusions extends at least partially in a space between adjacent core members of the plurality of core members. Moreover, the rotor module includes a permanent magnet disposed in a space between the adjacent core members.
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