公开(公告)号：US10263561B2

公开(公告)日：2019-04-16

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

IPC: H02K5/132 ,  H02K11/26 ,  H02P29/028 ,  F04D29/42 ,  F04D13/08 ,  F04D13/10 ,  F04D15/00 ,  F04D29/22 ,  E21B43/12

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.

公开(公告)号：US10256762B2

公开(公告)日：2019-04-09

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: H02K19/12 ,  H02P23/14 ,  H02P27/06 ,  E21B43/12 ,  F04D13/08 ,  F04D15/00

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：US20170305283A1

公开(公告)日：2017-10-26

申请号：US15137679

申请日：2016-04-25

Applicant: General Electric Company

Inventor： Kum Kang Huh ,  Di Pan

IPC: B60L11/18 ,  B60K6/26 ,  H02P27/08

Abstract: According to some embodiments, a traction system is disclosed. The traction system includes a DC bus, an energy storage device coupled to the DC bus, and a voltage converter assembly coupled to the energy storage device. The voltage converter assembly includes a plurality of phase legs. The traction system further includes an electromechanical device including a plurality of windings coupled to the voltage converter assembly. The traction system also includes a switch coupled to the DC bus between the voltage converter assembly and the energy storage device. The traction system includes a controller configured to control the switch and the voltage converter assembly such that a phase leg and a winding of the electromechanical device form a DC/DC converter.

公开(公告)号：US20240248522A1

公开(公告)日：2024-07-25

申请号：US18307375

申请日：2023-04-26

Applicant: General Electric Company

Inventor： Kum Kang Huh ,  Hridya Ittamveettil ,  Luis J. Garces ,  Rajib Datta ,  Di Pan ,  Yukai Wang

IPC: G06F1/30 ,  B64D41/00 ,  H02M1/00 ,  H02M7/797

CPC classification number: G06F1/30 ,  B64D41/00 ,  H02M1/0043 ,  H02M7/797

Abstract: A multilevel power converter includes a plurality of switches, a first DC link capacitor, a second DC link capacitor, and one or more processors configured to: generate, for a duty cycle of the multilevel power converter, a pulse width modulated pulse pattern in accordance with a reduced common mode voltage scheme; modify the pulse width modulated pulse pattern to render a modified pulse pattern; and cause the plurality of switches to implement the duty cycle based at least in part on the modified pulse pattern to render a common mode voltage pulse to balance voltages at the first DC link capacitor and the second DC link capacitor.

公开(公告)号：US20230396147A1

公开(公告)日：2023-12-07

申请号：US18453629

申请日：2023-08-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Di Pan ,  Yichao Zhang ,  Yuntao Xu ,  Yukai Wang

IPC: H02M1/08 ,  H02M7/487 ,  H02M7/5395

CPC classification number: H02M1/08 ,  H02M7/487 ,  H02M7/5395

Abstract: A power converter apparatus comprises a set of switching elements communicatively coupled with a set of gate drive circuits. Each gate drive circuit is configured to provide a respective drive signal to a corresponding switching element, each switching element being switchably responsive to the respective drive signal. The apparatus includes a controller module configured to control an output state of the power converter, and selectively change one of a respective gate resistance and a respective gate current of a corresponding subset of the gate drive circuits based on the output state of the power converter.

公开(公告)号：US20230223752A1

公开(公告)日：2023-07-13

申请号：US17571691

申请日：2022-01-10

Applicant: General Electric Company

Inventor： Honggang Wang ,  Di Pan ,  Kum Kang Huh

IPC: H02J1/10 ,  F01D15/10

CPC classification number: H02J1/106 ,  F01D15/10 ,  B64D2041/005 ,  H02J2310/44

Abstract: An aircraft electrical system including: a first DC power bus and a fuel cell assembly including a first fuel cell group, wherein the first fuel cell group is electrically coupled directly to the first DC power bus without a voltage converter to provide a first power output to the first DC power bus.

公开(公告)号：US11670942B2

公开(公告)日：2023-06-06

申请号：US17483308

申请日：2021-09-23

Applicant: General Electric Company

Inventor： Di Pan ,  Kum Kang Huh

IPC: H02J3/00 ,  B64D27/24 ,  B64D31/00 ,  H02P27/06 ,  B64D27/02

CPC classification number: H02J3/00 ,  B64D27/24 ,  B64D31/00 ,  H02P27/06 ,  B64D2027/026 ,  B64D2221/00

Abstract: A system includes a starter generator configured to provide power to a first bus and a first inverter, a second inverter coupled to the first inverter, a first switch configured to selectively couple the second inverter to the first bus and to a second bus, a second switch configured to selectively couple a first motor to the first bus and to the second bus, and a controller. The controller sets the first switch to a second position and the second switch to a second position, causes the second inverter to convert the power from the first inverter to a starting power for starting the first motor, causes the second inverter to increase the starting power to match the power provided to the first bus from the starter generator, and switches the second switch to the first position, when the starting power matches the power from the starter generator.

公开(公告)号：US20230058067A1

公开(公告)日：2023-02-23

申请号：US17401402

申请日：2021-08-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Di Pan ,  Yichao Zhang ,  Yuntao Xu ,  Yukai Wang

IPC: H02M1/08 ,  H02M7/5395 ,  H02M7/487

Abstract: A power converter apparatus comprises a set of switching elements communicatively coupled with a set of gate drive circuits. Each gate drive circuit is configured to provide a respective drive signal to a corresponding switching element, each switching element being switchably responsive to the respective drive signal. The apparatus includes a controller module configured to control an output state of the power converter, and selectively change one of a respective gate resistance and a respective gate current of a corresponding subset of the gate drive circuits based on the output state of the power converter.

公开(公告)号：US20210147092A1

公开(公告)日：2021-05-20

申请号：US16688108

申请日：2019-11-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Thomas William Brown ,  Paul Robert Gemin ,  Di Pan ,  Dominic Barone

IPC: B64D31/06 ,  B64D27/24 ,  H02P29/032

Abstract: Aspects of the disclosure generally relate to an aircraft propulsion system for an aircraft. The aircraft propulsion system can include at least an electric power source, an electric machine, a voltage regulator, and at least one propeller. The voltage regulator regulates the electrical power provided to the electric machine from the electrical power source. The electric power source is capable of providing an AC or DC electrical output and can include a combustion engine with a generator or an electrical storage device.

公开(公告)号：US10550816B2

公开(公告)日：2020-02-04

申请号：US15045754

申请日：2016-02-17

Applicant: General Electric Company

Inventor： Kum Kang Huh ,  Di Pan

IPC: F02N11/08 ,  B60K6/26 ,  F02N11/04

Abstract: According to some embodiments, a start-stop system for a vehicle is disclosed. The start-stop system includes a first energy storage device coupled to a starter motor. The start-stop system also includes a first DC-to-AC inverter coupled to the first energy storage device, a starter/alternator coupled to the first DC-to-AC inverter, and a second DC-to-AC inverter coupled to the starter/alternator. The start-stop system further includes a second energy storage device coupled to the second DC-to-AC inverter. The start-stop system finally includes a controller configured to control the two DC-to-AC inverters such that either the starter motor or starter/alternator starts the vehicle based on the state of charge of the second energy storage device.