-
公开(公告)号：US10507716B2
公开(公告)日：2019-12-17
申请号：US15137679
申请日：2016-04-25
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：US09960687B2
公开(公告)日：2018-05-01
申请号：US15174042
申请日：2016-06-06
Applicant: General Electric Company
Inventor： Ahmed Elasser , Mohammed Agamy , Kum Kang Huh
CPC classification number: H02M3/33507 , H02M1/08 , H02M3/33561 , H02M3/33584 , H02M3/337 , H02M7/4807 , H02M2001/0058 , H02M2001/0093 , H02M2007/4815 , Y02B70/1441 , Y02B70/1491
Abstract: According to some embodiments, an electronic drive circuit is disclosed. The electronic drive circuit includes an energy storage device and a first bridge circuit coupled to the energy storage device. The first bridge circuit includes at least one leg having two switches. The electronic drive circuit also includes a transformer. The transformer includes a first winding coupled to the first bridge circuit and a second winding coupled to the energy storage device through a center tap. The electronic drive circuit further includes a second bridge circuit coupled to the second winding of the transformer. The second bridge circuit includes a pair of switches operable to conduct in both directions and block voltage in both directions. The electronic drive circuit additionally includes a DC bus coupled to the second bridge circuit and a controller, which is configured to buck or boost a DC voltage from the energy storage device to supply to the DC bus as well as buck or boost a DC voltage from the DC bus to supply to the energy storage device.
-
公开(公告)号：US20160065112A1
公开(公告)日：2016-03-03
申请号：US14473216
申请日：2014-08-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Patel Bhageerath Reddy , Ayman Mohamed Fawzi El-Refaie , Kum Kang Huh
IPC: H02P29/00
CPC classification number: H02P29/62 , H02P29/662 , H02P2207/05
Abstract: A magnet management method of controlling a ferrite-type permanent magnet electrical machine includes receiving and/or estimating the temperature permanent magnets; determining if that temperature is below a predetermined temperature; and if so, then: selectively heating the magnets in order to prevent demagnetization and/or derating the machine. A similar method provides for controlling magnetization level by analyzing flux or magnetization level. Controllers that employ various methods are disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.
Abstract translation: 铁氧体永磁电机的磁控管理方法包括接收和/或估计温度永磁体; 确定该温度是否低于预定温度; 如果是这样，则：选择性地加热磁铁，以防止机器的退磁和/或降额。 类似的方法通过分析通量或磁化水平来提供控制磁化水平。 公开了采用各种方法的控制器。 已经根据具体实施例描述了本发明，并且认识到除了明确说明的那些之外的等同物，替代方案和修改是可能的并且在所附权利要求的范围内。
-
公开(公告)号：US20140116286A1
公开(公告)日：2014-05-01
申请号：US13666283
申请日：2012-11-01
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Kum Kang Huh , Patel Reddy , Ayman Mohamed Fawzi El-Refaie , Patrick Lee Jansen , Roy David Schultz , Lembit Salasoo
Abstract: An electric machine that includes a rotor core made of magnetic steel; a stator configured with stationary windings therein; openings disposed within or on the rotor core; and a rotor circuit that is configured to introduce saliency based on an orientation of part of the rotor circuit in relationship to a pole location of the electric machine, where the rotor circuit is made of a conductive, non-magnetic material. A rotor component and various embodiments of electric machines are also disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.
Abstract translation: 一种电动机，包括由磁钢制成的转子芯; 定子，其中具有固定绕组; 设置在转子芯体内或转子芯上的开口; 以及转子电路，其被配置为基于与所述电机的极位置关联的所述转子电路的一部分的取向来引入突出，其中所述转子电路由导电非磁性材料制成。 还公开了转子部件和电机的各种实施例。 已经根据具体实施例描述了本发明，并且认识到除了明确说明的那些之外的等同物，替代方案和修改是可能的并且在所附权利要求的范围内。
-
公开(公告)号：US20250100699A1
公开(公告)日：2025-03-27
申请号：US18786817
申请日：2024-07-29
Applicant: General Electric Company
Inventor： Hang Dai , Cong Li , Kum Kang Huh , Ren Xie
IPC: B64D27/359 , B64D27/34
Abstract: A power system is provided. The power system includes: an electric machine comprising a first multiphase winding and a second multiphase winding, the first multiphase winding and the second multiphase winding being electrically opposite in phase with respect to one another; and a power converter system having: first switching elements in electric connection with the first multiphase winding and having a DC side and an AC side; second switching elements in electric connection with the second multiphase winding and having a DC side and an AC side; a plurality of capacitors coupled to the first switching elements on the DC side of the first switching elements and to the second switching elements on the DC side of the second switching elements; and a means for reducing common mode currents on the AC side of the first switching elements and on the AC side of the second switching elements.
-
Patent Agency Ranking
26.发明公开公开(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
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：US11970282B2
公开(公告)日：2024-04-30
申请号：US17568892
申请日：2022-01-05
Applicant: General Electric Company
Inventor： Honggang Wang , Kum Kang Huh , Michael Anthony Benjamin , Koji Asari
CPC classification number: B64D31/12 , B64D27/10 , B64D27/24 , B64D2027/026 , B64D2041/005 , B64D2221/00
Abstract: Systems and methods of aircraft thrust management are provided. For example, a propulsion system for an aircraft comprises a fuel cell assembly comprising a fuel cell, a turbomachine, and a controller comprising memory and one or more processors. The memory stores instructions that, when executed by the one or more processors, cause the propulsion system to perform operations including receiving data indicative of a propulsion system thrust discrepancy and modifying an output of the fuel cell in response to receiving data indicative of the propulsion system thrust discrepancy. Modifying the fuel cell output may include modifying output products, an electrical power output, or both of the fuel cell to balance the thrust provided by the propulsion system.
-
公开(公告)号：US20230412094A1
公开(公告)日：2023-12-21
申请号：US18459643
申请日：2023-09-01
Applicant: General Electric Company
Inventor： Kum Kang Huh , Rajib Datta , Vandana Prabhakar Rallabandi , John Russell Yagielski , Mohamed Osama
IPC: H02M7/5395 , B64D27/12 , H02M1/44 , H02P25/22 , H02P27/08
CPC classification number: H02M7/5395 , B64D27/12 , H02M1/44 , H02P25/22 , H02P27/085 , B64D2027/026
Abstract: A power system including a power converter system and an electric machine is provided. In one aspect, the power converter system has first and second switching elements. The electric machine includes a first multiphase winding electrically coupled with the first switching elements and a second multiphase winding electrically coupled with the second switching elements. The first and second multiphase windings are arranged and configured to operate electrically opposite in phase with respect to one another. One or more processors control the first switching elements to generate first pulse width modulated (PWM) signals based on received voltage commands to render a first common mode signal and also control the second switching elements to generate second PWM signals based on received voltage commands to render a second common mode signal. The rendered first and second common mode signals have the same or similar waveform with opposite polarity with respect to one another.
-
公开(公告)号：US11845388B2
公开(公告)日：2023-12-19
申请号：US17325404
申请日：2021-05-20
Inventor： Kum Kang Huh , Mohamed Osama
IPC: B60R16/03 , B60L50/13 , B64D27/18 , F01D15/10 , F02C7/275 , H02J1/10 , H02K11/042 , H02P101/30
CPC classification number: B60R16/0307 , B60L50/13 , B64D27/18 , F01D15/10 , F02C7/275 , H02J1/102 , H02K11/042 , B60L2200/10 , H02P2101/30
Abstract: An AC electrical system for a vehicle and methods of operating the same are provided. In one aspect, an AC electrical system includes a first electric machine mechanically coupled with a first spool of a gas turbine engine and a second electric machine mechanically coupled with a second spool of the gas turbine engine. The system also includes a first AC bus and a second AC bus. A first electrical channel electrically couples the first electric machine to the first AC bus and a second electrical channel electrically couples the second electric machine to the second AC bus. The system also includes one or more connection links and one or more power converters for selectively electrically coupling the first and second electrical channels so that electrical power generated by one electric machine can be converted and shared with the other electric machine and electrical loads of the other channel.
-
公开(公告)号：US11824380B2
公开(公告)日：2023-11-21
申请号：US16475464
申请日：2017-01-05
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Fei Xu , Ahmed Elasser , Silvio Colombi , Kum Kang Huh
CPC classification number: H02J7/0013 , B60L53/11 , H02J3/322 , H02J7/02 , H02M3/158 , H02M3/1582 , H02M3/33571 , H02M3/33573 , H02J2207/20 , H02J2310/48
Abstract: A DC charging circuit for an electric vehicle includes a neutral-point clamped (NPC) rectifier and a DC/DC buck converter. The NPC rectifier is configured to convert three-phase AC power to a first DC voltage at a rectifier output stage. The DC/DC buck converter includes a first DC stage coupled to the rectifier output stage, and a second DC stage configured to be coupled to the electric vehicle. The DC/DC buck converter is configured to convert the first DC voltage to a second DC voltage to be supplied to the electric vehicle.
-
-
-
-
-
-
-
-
-
Search Results
51
records
(took 0.05 seconds)
