-
21.发明授权公开(公告)号：US09948224B1
公开(公告)日：2018-04-17
申请号：US15295830
申请日：2016-10-17
Applicant: General Electric Company
Inventor： Kum-Kang Huh , Di Pan
Abstract: A system and method for position sensorless control of an AC electric machine is disclosed. A drive system for driving an AC electric machine provides a primary current excitation to drive the AC electric machine, the primary current excitation comprising a current vector having a magnitude and angle. The drive system injects a carrier signal to the AC electric machine that is superimposed onto the current vector, with the carrier signal being selected to generate a carrier response signal that has sensitivity to magnetic alignment information of the AC electric machine at its operating point. The drive system measures at least one magnetic alignment signature of the AC electric machine from the generated carrier response signal and controls an orientation of the current vector using the measured at least one magnetic alignment signature, so as to achieve a desired magnetic operation of the AC electric machine.
-
公开(公告)号：US20170234285A1
公开(公告)日：2017-08-17
申请号：US15045754
申请日：2016-02-17
Applicant: General Electric Company
Inventor： Kum Kang Huh , Di Pan
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.
-
公开(公告)号：US20170057363A1
公开(公告)日：2017-03-02
申请号：US14838485
申请日：2015-08-28
Applicant: General Electric Company
Inventor： Kum-Kang Huh , Di Pan
CPC classification number: B60L11/18 , B60L11/005 , B60L2210/10 , H02M3/04 , H02M7/44 , Y02T10/7022 , Y02T10/7216
Abstract: A hybrid energy system for providing power to a load and for providing a fast variation of DC link voltage to improve system efficiency is disclosed. The system includes a load, a direct current (DC) link electrically coupled to the load, an energy storage system having a first energy storage device and a second energy storage device arranged in series, and a bi-directional DC-DC converter electrically coupled to the DC link and to the energy storage system, the bi-directional DC-DC converter being connected to a node located between the first energy storage device and the second energy storage device and to a node connecting the second energy storage device to the DC link.
Abstract translation: 公开了一种用于向负载提供电力并提供DC链路电压的快速变化以提高系统效率的混合能量系统。 该系统包括负载，电耦合到负载的直流（DC）链路，具有串联布置的第一能量存储装置和第二能量存储装置的能量存储系统，以及电耦合的双向DC-DC转换器 所述双向DC-DC转换器连接到位于所述第一能量存储装置和所述第二能量存储装置之间的节点，并且连接到将所述第二能量存储装置连接到所述DC的节点 链接。
-
公开(公告)号：US12009742B1
公开(公告)日：2024-06-11
申请号：US18349245
申请日：2023-07-10
Inventor： Hridya Ittamveettil , Kum Kang Huh , Vandana Prabhakar Rallabandi , Di Pan , Rajib Datta , Mohamed Osama
CPC classification number: H02M1/325 , B64D27/24 , H02J2310/44
Abstract: An electric power conversion system comprising: an alternating current (AC) source comprising a plurality of AC terminals for conducting AC power; a voltage source electrically coupled to the AC terminals; and a controller operably coupled to the voltage source, the controller being configured to: operate the voltage source to apply a fault reducing voltage at the AC terminals that reduces an AC line-to-line fault current (If).
-
公开(公告)号：US20230389241A1
公开(公告)日：2023-11-30
申请号：US18081770
申请日：2022-12-15
Applicant: General Electric Company
Inventor： Sanjay Vijayaraghavan , Libing Wang , Han Xiong , Kum Kang Huh , Di Pan , Mark Edward Dame , Rajib Datta , Alankrita Singh
CPC classification number: H05K7/20927 , H05K5/0217
Abstract: A power converter assembly includes a housing, a cold plate in the housing, and a set of power converter components on the cold plate. The cold plate is configured to receive a coolant. A first medium in the housing surrounds the cold plate and components. An expandable heat transfer structure is attached to one of the cold plate and the housing.
-
Patent Agency Ranking
公开(公告)号：US20220205424A1
公开(公告)日：2022-06-30
申请号：US17139329
申请日：2020-12-31
Applicant: General Electric Company
Inventor： Hanchao Liu , Maozhong Gong , Di Pan , Yichao Zhang
Abstract: A method for operating an asynchronous doubly-fed wind turbine generator connected to a power grid in a grid-forming mode to emulate a virtual synchronous machine. The doubly-fed wind turbine generator includes a line-side converter coupled to a rotor-side converter via a direct current (DC) link. The method includes receiving, via a controller, at least one reference command from an external controller. The method also includes controlling rotor flux of the doubly-fed wind turbine generator using the at least one reference command. Further, the method includes providing power droop control for the doubly-fed wind turbine generator through at least one of rotor-side reference frame rotation and d-axis flux control.
-
公开(公告)号：US11095246B1
公开(公告)日：2021-08-17
申请号：US16789640
申请日：2020-02-13
Applicant: General Electric Company
Inventor： Antonio Caiafa , Di Pan
IPC: H02P29/028 , H02P29/50 , H02P27/08 , H02P25/22
Abstract: A system may be provided that may include an integrated motor drive configured to couple to a motor. The integrated motor drive may include a first converter that may be configured to electrically couple with a winding assembly of the motor. The first converter may include at least first conversion circuitry configured to form a first electrical excitation waveform and second conversion circuitry coupled in parallel to the second conversion circuitry and configured to form a second electrical excitation waveform. The first converter may also include a first transformer configured to form a first summation electrical excitation waveform from the first electrical excitation waveform and the second electrical excitation waveform that drives the motor.
-
公开(公告)号：US10978934B2
公开(公告)日：2021-04-13
申请号：US16113401
申请日：2018-08-27
Applicant: General Electric Company
Inventor： Robert Charles Hon , Di Pan , Pablo Gabriel Piazza Galarza , Paul Robert Gemin
Abstract: A method for operating a permanent magnet electric machine of an engine includes determining a fault condition of the permanent magnet electric machine; and reducing a magnetism of one or more permanent magnets of the permanent magnet electric machine by increasing a temperature of the one or more permanent magnets in response to determining the fault condition of the permanent magnet electric machine.
-
公开(公告)号：US20200070643A1
公开(公告)日：2020-03-05
申请号：US16675703
申请日：2019-11-06
Applicant: General Electric Company
Inventor： Kum Kang Huh , Di Pan
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：US10547251B1
公开(公告)日：2020-01-28
申请号：US16192668
申请日：2018-11-15
Applicant: General Electric Company
Inventor： Di Pan , Mark Edward Dame , Di Zhang , Jiangbiao He
Abstract: A method for shutting down a phase-leg of a three-level active neutral point clamped converter is provided. The method includes the following steps. A determining step determines if a switch fault has occurred, and if a switch fault has occurred then each switch of the plurality of switches are turned off. If a switch fault has not occurred and a shutdown is requested, then an operating step operates the plurality of switches to turn off a first switch and a fourth switch. A waiting step waits for a first predetermined time period. An operating step operates the plurality of switches to turn on a second switch and a third switch. A waiting step is repeated. An operating step operates the plurality of switches to turn off a fifth switch and a sixth switch. A waiting step is repeated. An operating step turns off the second switch and the third switch.
-
-
-
-
-
-
-
-
-
Search Results
50
records
(took 0.02 seconds)
