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公开(公告)号：US20190343019A1
公开(公告)日：2019-11-07
申请号：US15968284
申请日：2018-05-01
Applicant: General Electric Company
Inventor： Maja Harfman Todorovic , Philip Michael Cioffi , Xu She , Gary Dwayne Mandrusiak , Rajib Datta , Michael Joseph Schutten
Abstract: A device for cooling an electronic component includes a substrate having a component mounting surface and a fluid flow surface recessed relative to the component mounting surface. The device also includes an inlet orifice positioned proximate a first end of the fluid flow surface and an outlet orifice positioned proximate a second end of the fluid flow surface. A pattern of surface features is arranged on the fluid flow surface. The pattern of surface features is configured to entrain a coolant flowing across the fluid flow surface and redirect the coolant upward and away from the fluid flow surface.
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公开(公告)号：US10103534B2
公开(公告)日：2018-10-16
申请号：US15336453
申请日：2016-10-27
Applicant: General Electric Company
Inventor： Xu She , Rajib Datta , Ravisekhar Nadimpalli Raju , Maja Harfman-Todorovic , Philip Michael Cioffi
Abstract: An electrical system includes a power electronics system and a bus bar coupled to the power electronic system. The power electronics system includes a switching device configured to selectively connect and disconnect. The bus bar includes a first conductive layer and a second conductive layer. The first conductive layer is disposed directly adjacent a first insulation layer, wherein the first conductive layer is configured to conduct a first polarity of electrical power to, from, or both the power electronics system. The second conductive layer is disposed directly adjacent the first insulation layer, and is configured to conduct a second polarity of electrical power opposite the first polarity to, from, or both the power electronics system. The first conductive layer comprises a first thickness half a second thickness of the second conductive layer.
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公开(公告)号：US20180191280A1
公开(公告)日：2018-07-05
申请号：US15399049
申请日：2017-01-05
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Rajni Kant Burra , Ravisekhar Nadimpalli Raju , Rui Zhou , Rajib Datta , John Leo Bollenbecker
CPC classification number: H02P9/007 , F03D9/25 , F03D9/255 , H02M3/335 , H02M3/33576 , H02M3/337 , H02M5/4585 , H02M2001/0077 , Y02E10/725
Abstract: Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a wind driven doubly fed induction generator having a stator and a rotor. The stator is configured to provide a medium voltage alternating current power on a stator bus of the wind turbine system. The wind turbine system includes a power converter configured to convert a low voltage alternating current power provided by the rotor to a medium voltage multiphase alternating current output power suitable for provision to an electrical grid. The power converter includes a plurality conversion modules. Each conversion module includes a plurality of bridge circuits. Each bridge circuit includes a plurality of silicon carbide switching devices coupled in series. Each conversion module is configured to provide a single phase of the medium voltage multiphase alternating current output power on a line bus of the wind turbine system.
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14.发明申请MULTI-LEVEL DC-DC CONVERTER WITH GALVANIC ISOLATION AND ADAPTIVE CONVERSION RATIO 审中-公开多级DC-DC转换器，具有隔离隔离和自适应转换比公开(公告)号：US20170070154A1
公开(公告)日：2017-03-09
申请号：US15352759
申请日：2016-11-16
Applicant: General Electric Company
Inventor： Ravisekhar Nadimpalli Raju , Rajib Datta , Xu She
IPC: H02M3/335
CPC classification number: H02M3/33569 , H02M3/285 , H02M2001/0074 , Y02B70/1433
Abstract: A multi-level DC-DC converter includes an input side to receive a DC power having an input voltage and current, an output side to provide power to a load at a desired output voltage and current, and a plurality of transformer-isolated DC-DC converters connected between the input and output sides, with the transformer-isolated DC-DC converters being connected in series on one side and connected in parallel on another side. Each of the transformer isolated DC-DC converters further includes a power transformer having a primary winding and a secondary winding, and a plurality of switching devices each selectively operable in one of an On state and an Off state. Operating the switching devices in a complementary On state and Off state alternately at a controlled switching frequency provides for engaging the transformer isolated DC-DC converter and operating the switching devices in a simultaneously On state bypasses the transformer isolated DC-DC converter.
Abstract translation: 多级DC-DC转换器包括：输入侧，用于接收具有输入电压和电流的DC电力;输出侧，以期望的输出电压和电流向负载提供电力;以及多个变压器隔离DC- DC转换器连接在输入和输出侧之间，变压器隔离的DC-DC转换器一端串联连接，另一侧并联。 每个变压器隔离DC-DC转换器还包括具有初级绕组和次级绕组的电力变压器，以及多个开关装置，每个开关装置可选择性地可操作地处于导通状态和断开状态之一。 以受控的开关频率交替地将开关器件以互补的导通状态和关断状态运行，提供了使变压器隔离的DC-DC转换器并且同时操作开关器件的接通状态绕过变压器隔离的DC-DC转换器。
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15.发明授权Multi-level DC-DC converter with galvanic isolation and adaptive conversion ratio 有权具有电流隔离和自适应转换比的多级DC-DC转换器公开(公告)号：US09520798B2
公开(公告)日：2016-12-13
申请号：US14469002
申请日：2014-08-26
Applicant: General Electric Company
Inventor： Ravisekhar Nadimpalli Raju , Rajib Datta , Xu She
CPC classification number: H02M3/33569 , H02M3/285 , H02M2001/0074 , Y02B70/1433
Abstract: A multi-level DC-DC converter includes an input side to receive a DC power having an input voltage and current, an output side to provide power to a load at a desired output voltage and current, and a plurality of tranformer-isolated DC-DC converters connected between the input and output sides, with the tranformer-isolated DC-DC converters being connected in series on one side and connected in parallel on another side. Each of the tranformer isolated DC-DC converters further includes a power transformer having a primary winding and a secondary winding, and a plurality of switching devices each selectively operable in one of an On state and an Off state. Operating the switching devices in a complementary On state and Off state alternately at a controlled switching frequency provides for engaging the tranformer isolated DC-DC converter and operating the switching devices in a simultaneously On state bypasses the transformer isolated DC-DC converter.
Abstract translation: 多级DC-DC转换器包括：输入侧，用于接收具有输入电压和电流的DC电力;输出侧，以期望的输出电压和电流向负载提供电力;以及多个转换器隔离DC- DC转换器连接在输入和输出侧之间，变压器隔离式DC-DC转换器在一侧串联连接，另一侧并联连接。 每个变压器隔离DC-DC转换器还包括具有初级绕组和次级绕组的电力变压器，以及多个开关装置，每个开关装置可以选择性地在“开”状态和“关”状态之一工作。 以受控的开关频率交替地将开关器件工作在互补的导通状态和关断状态，提供了与变压器隔离的DC-DC转换器并且同时操作开关器件的接通状态绕过变压器隔离的DC-DC转换器。
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Patent Agency Ranking
公开(公告)号：US20240235452A1
公开(公告)日：2024-07-11
申请号：US18151010
申请日：2023-01-06
Applicant: General Electric Company
Inventor： Hang Dai , Kum Kang Huh , Rajib Datta , Cong Li , Vandana Prabhakar Rallabandi , Thomas Jahns , Bulent Sarlioglu
CPC classification number: H02P27/08 , B60L50/00 , B64D27/24 , H02M1/44 , B60L2200/10 , B60L2210/40 , B64D2221/00
Abstract: A power converter is provided. In one aspect, the power converter has a first inverter and a second inverter electrically coupled with one another and with a power bus. First switches of the first inverter are arranged symmetrically with second switches of the second inverter so that, when switched in a pulse width modulated switching scheme, the first switches generate a first common mode signal and the second switches generate a second common mode signal that is one hundred eighty degrees out of phase with the first common mode signal. In another aspect, the power converter includes a buck stage having one or more pairs of symmetrically arranged buck switches that can be controlled to reduce or eliminate common mode electromagnetic interference in the buck stage. The power converter can also include one or more pairs of symmetrically arranged inductors.
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公开(公告)号：US20220258867A1
公开(公告)日：2022-08-18
申请号：US17738165
申请日：2022-05-06
Applicant: General Electric Company
Inventor： Rajib Datta , Vishnu Mahadeva Iyer , Mohamed Osama , Kum Kang Huh , Vandana Prabhakar Rallabandi
Abstract: An electric power system for a vehicle includes at least one electric machine, one or more power rectifiers, and a plurality of DC channels. The at least one electric machine includes a plurality of tooth-wound multi-phase windings that are substantially magnetically decoupled, and the at least one electric machine is mechanically balanced even if one of the plurality of windings is de-energized. The one or more power rectifiers are configured to produce rectified power from the power generated by the at least one electric machine. The plurality of DC channels are formed after the at least one power rectifier and are configured to provide DC power to one or more loads within a vehicle.
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公开(公告)号：US20190343020A1
公开(公告)日：2019-11-07
申请号：US15968370
申请日：2018-05-01
Applicant: General Electric Company
Inventor： Maja Harfman Todorovic , Philip Michael Cioffi , Xu She , Gary Dwayne Mandrusiak , Rajib Datta , Michael Joseph Schutten
Abstract: A heat sink for cooling an electronic component includes a substrate comprising an electrically non-conductive material and an inlet port and an outlet port extending outward from the substrate. The inlet and outlet ports are fluidically coupled to a fluid flow surface of the heat sink by passages that extend through a portion of the substrate. The heat sink also includes a shield comprising an electrically conductive material. The shield is disposed atop or within the substrate and is configured to suppress electromagnetic interference generated by an electronic component coupled to the heat sink.
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19.发明申请MULTI-LEVEL DC-DC CONVERTER WITH GALVANIC ISOLATION AND ADAPTIVE CONVERSION RATIO 有权多级DC-DC转换器，具有隔离隔离和自适应转换比公开(公告)号：US20160065081A1
公开(公告)日：2016-03-03
申请号：US14469002
申请日：2014-08-26
Applicant: General Electric Company
Inventor： Ravisekhar Nadimpalli Raju , Rajib Datta , Xu She
IPC: H02M3/335
CPC classification number: H02M3/33569 , H02M3/285 , H02M2001/0074 , Y02B70/1433
Abstract: A multi-level DC-DC converter includes an input side to receive a DC power having an input voltage and current, an output side to provide power to a load at a desired output voltage and current, and a plurality of tranformer-isolated DC-DC converters connected between the input and output sides, with the tranformer-isolated DC-DC converters being connected in series on one side and connected in parallel on another side. Each of the tranformer isolated DC-DC converters further includes a power transformer having a primary winding and a secondary winding, and a plurality of switching devices each selectively operable in one of an On state and an Off state. Operating the switching devices in a complementary On state and Off state alternately at a controlled switching frequency provides for engaging the tranformer isolated DC-DC converter and operating the switching devices in a simultaneously On state bypasses the transformer isolated DC-DC converter.
Abstract translation: 多级DC-DC转换器包括：输入侧，用于接收具有输入电压和电流的DC电力;输出侧，以期望的输出电压和电流向负载提供电力;以及多个转换器隔离DC- DC转换器连接在输入和输出侧之间，变压器隔离式DC-DC转换器在一侧串联连接，另一侧并联连接。 每个变压器隔离DC-DC转换器还包括具有初级绕组和次级绕组的电力变压器，以及多个开关装置，每个开关装置可以选择性地在“开”状态和“关”状态之一工作。 以受控的开关频率交替地将开关器件工作在互补的导通状态和关断状态，提供了与变压器隔离的DC-DC转换器并且同时操作开关器件的接通状态绕过变压器隔离的DC-DC转换器。
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20.发明授权High voltage direct current (HVDC) converter system and method of operating the same 有权高压直流（HVDC）转换器系统及其运行方法公开(公告)号：US09099936B2
公开(公告)日：2015-08-04
申请号：US13826583
申请日：2013-03-14
Applicant: General Electric Company
Inventor： Ranjan Kumar Gupta , Nilanjan Ray Chaudhuri , Luis Jose Garces , Rajib Datta
CPC classification number: H02M5/44 , H02M1/126 , H02M1/15 , H02M7/7575 , H02M2001/0077 , Y02E60/60
Abstract: A high voltage direct current (HVDC) converter system includes a line commutated converter (LCC) configured to convert a plurality of AC voltages and currents to a regulated DC voltage of one of positive and negative polarity and a DC current transmitted in only one direction. The HVDC converter system also includes a buck converter configured to convert a plurality of AC voltages and currents to a regulated DC voltage of one of positive and negative polarity and a DC current transmitted in one of two directions. The LCC and the buck converter are coupled in parallel to an AC conduit and are coupled in series to a DC conduit. The HVDC converter system further includes a filtering device coupled in parallel to the buck converter through the AC conduit. The filtering device is configured to inject AC current having at least one harmonic frequency into the AC conduit.
Abstract translation: 高压直流（HVDC）转换器系统包括线路整流转换器（LCC），其被配置为将多个AC电压和电流转换成正极性和负极性之一的稳压DC电压以及仅在一个方向上传输的DC电流。 HVDC转换器系统还包括降压转换器，其被配置为将多个AC电压和电流转换成正极性和负极性之一的稳压DC电压以及沿两个方向之一传输的DC电流。 LCC和降压转换器并联耦合到AC导管并且串联耦合到DC导管。 HVDC转换器系统还包括通过AC导管并联耦合到降压转换器的滤波装置。 滤波装置被配置为将具有至少一个谐波频率的AC电流注入到AC导管中。
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