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公开(公告)号：US10968529B2
公开(公告)日：2021-04-06
申请号：US16402929
申请日：2019-05-03
Applicant: General Electric Company
Inventor： Weijun Yin , Anil Raj Duggal , Ravisekhar Nadimpalli Raju
Abstract: This present disclosure generally relates to systems and methods of electrophoretic deposition (EPD) techniques for use in insulation systems at least partially encapsulating a semiconductor device, a conductive component and a substrate, such as insulation systems of semiconductor devices, busbars, or the like. Insulation systems formed using EPD processes may be designed to have a dielectric constant that decreases in a direction away from a substrate of the insulation system. This may improve insulation technologies since depositing coatings with sequentially arranged dielectric constants may improve resistance of the insulation system to high temperature, high electric fields, or the like.
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公开(公告)号：US20200235557A1
公开(公告)日：2020-07-23
申请号：US16843265
申请日：2020-04-08
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：US10439533B2
公开(公告)日：2019-10-08
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
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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公开(公告)号：US10027240B1
公开(公告)日：2018-07-17
申请号：US15399817
申请日：2017-01-06
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Ravisekhar Nadimpalli Raju , Harold Robert Schnetzka
Abstract: Systems and methods for grounding power generation units with silicon carbide MOSFET power converters are provided. A power generation unit can include a power generator configured to generate multiphase alternating current power at a first voltage. The power generation unit can also include a power converter configured to convert the multiphase alternating current power from the power generator at the first voltage to multiphase alternating current power at a second voltage. The power converter can include one or more silicon carbide MOSFETs and at least one heatsink configured to remove heat from the power converter. The at least one heatsink of the power converter can be electrically connected to a local ground formed by one or more components of the power generation unit.
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公开(公告)号：US20180197676A1
公开(公告)日：2018-07-12
申请号：US15402980
申请日：2017-01-10
Applicant: General Electric Company
Inventor： Philip Michael Cioffi , Qin Chen , Wei Zhang , Ravisekhar Nadimpalli Raju
CPC classification number: H01F41/0206 , H01F27/29 , H01F27/323 , H01F41/04 , H01F41/122
Abstract: An electrical component includes a magnetic core, an insulator, and a first winding. The insulator includes a first aperture disposed about a first portion of the core and a first insulator passage extending through the insulator, encircling the first aperture. The first winding extends through the first insulator passage and conducts an electrical current.
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Patent Agency Ranking
公开(公告)号：US20170317604A1
公开(公告)日：2017-11-02
申请号：US15247135
申请日：2016-08-25
Applicant: General Electric Company
IPC: H02M7/00 , H01F27/28 , H01F38/14 , H05K1/02 , H05K3/30 , H01F27/10 , H05K1/03 , H05K1/18 , H05K7/20
CPC classification number: H02M7/003 , H01F27/10 , H01F27/2847 , H01F38/14 , H01F2027/2861 , H01L23/3735 , H05K1/0204 , H05K1/0306 , H05K1/18 , H05K3/30 , H05K7/1432 , H05K7/2089 , H05K2201/1003 , H05K2201/10053 , H05K2201/10174
Abstract: A power converter for a power system includes an input ceramic layer, an output ceramic layer, an input stage coupled to the input ceramic layer, an output stage coupled to the output ceramic layer, and a planar transformer coupled between said input stage and said output stage. The input receives a power input and the output stage generates a power output at least partially as a function of the power input. The planar transformer includes an input winding coupled to the input stage and an output winding coupled to the output stage. The input winding has a plurality of input turns and the output winding has a plurality of output turns. The input turns interleave the output turns.
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公开(公告)号：US20170279361A1
公开(公告)日：2017-09-28
申请号：US15081339
申请日：2016-03-25
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ravisekhar Nadimpalli Raju
IPC: H02M3/335
CPC classification number: H02M3/33507 , H02M1/12 , H02M3/3376 , H02M2001/0058 , H02M2007/4811 , H02M2007/4818 , Y02B70/1433 , Y02B70/1491
Abstract: A direct current (DC) to DC power converter includes a first converter for converting a first DC bus voltage into a first high frequency AC voltage and a second converter for converting a second high frequency alternating current (AC) voltage into a second DC bus voltage. The DC to DC converter also includes a resonant circuit for coupling the first bus converter and the second bus converter and a controller for providing switching signals to the first converter and the second converter to operate the power converter in a soft switching mode. The resonant circuit includes a high frequency transformer coupled between the first converter and the second converter and an auxiliary converter coupled in series with a first resonant inductor and the high frequency transformer. The resonant circuit further includes second inductor coupled across a first winding of the high frequency transformer. An auxiliary voltage generated by auxiliary converter is added in series with an output voltage of the first converter.
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公开(公告)号：US20160181947A1
公开(公告)日：2016-06-23
申请号：US14581466
申请日：2014-12-23
Applicant: General Electric Company
Inventor： Ravisekhar Nadimpalli Raju , Manoj Ramprasad Shah
CPC classification number: H02M7/003 , H02M7/5387
Abstract: A method for use in reducing an inductance of a circuit including a commutation loop defined at least in part by a source conductor and a return conductor between a first component and a second component is described. The method includes disposing a conductive inductance reducer within the commutation loop. The conductive inductance reducer includes an electrically conductive material and an insulator.
Abstract translation: 描述了一种用于减少包括至少部分地由第一部件和第二部件之间的源极导体和返回导体限定的换向回路的电路的电感的方法。 该方法包括在换向回路内布置导电电感减速器。 导电电感减少器包括导电材料和绝缘体。
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29.发明授权公开(公告)号：US09306391B2
公开(公告)日：2016-04-05
申请号：US13842844
申请日：2013-03-15
Applicant: General Electric Company
CPC classification number: H02J1/00 , H02J3/36 , H02J3/386 , H02J13/0086 , Y02E10/763 , Y02E40/72 , Y02E60/60 , Y04S10/123 , Y10T307/549
Abstract: A direct current (DC) transmission and distribution (T&D) system includes a plurality of DC-to-DC converter devices defining a plurality of isolatable portions of the DC T&D system. The DC T&D system also includes a DC T&D control system coupled to the DC-to-DC converter devices. The DC T&D control system includes a plurality of current sensors. At least one of the current sensors is positioned at one of the DC-to-DC converter devices. The current sensor is configured to transmit signals representative of a value of DC electric current transmission through the DC-to-DC converter device. The DC T&D control system also includes a plurality of processors. At least one processor is coupled to the current sensor and the DC-to-DC converter device. The processor is configured to regulate DC current transmission through the DC-to-DC converter device as a function of the value of DC current transmission through the DC-to-DC converter device.
Abstract translation: 直流（DC）传输和分配（T＆D）系统包括限定DC T＆D系统的多个可隔离部分的多个DC-DC转换器装置。 DC T＆D系统还包括耦合到DC-DC转换器设备的DC T＆D控制系统。 DC T＆D控制系统包括多个电流传感器。 至少一个电流传感器位于DC-DC转换器装置之一处。 电流传感器被配置为传送表示通过DC-DC转换器装置的DC电流传输的值的信号。 DC T＆D控制系统还包括多个处理器。 至少一个处理器耦合到电流传感器和DC-DC转换器装置。 处理器被配置为根据通过DC-DC转换器装置的DC电流传输的值来调节通过DC-DC转换器装置的DC电流传输。
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公开(公告)号：US20140092661A1
公开(公告)日：2014-04-03
申请号：US13629882
申请日：2012-09-28
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Di Zhang , Luis Jose Garces , Rajib Datta , Ravisekhar Nadimpalli Raju
CPC classification number: H02M7/5152 , H02M3/3376 , H02M7/487 , H02M7/537 , H02M7/53871 , H02M7/7575 , H02M2007/4835 , Y02E60/60
Abstract: A power converter is presented. The power converter includes at least one leg, the at least one leg includes a first string, where the first string includes a plurality of controllable semiconductor switches, a first connecting node, and a second connecting node, and where the first string is operatively coupled across a first bus and a second bus. Furthermore, the at least one leg includes a second string operatively coupled to the first string via the first connecting node and the second connecting node, where the second string includes a plurality of switching units. A method for power conversion is also presented.
Abstract translation: 介绍了一种电源转换器。 所述功率转换器包括至少一个支路，所述至少一个支路包括第一串，其中所述第一串包括多个可控半导体开关，第一连接节点和第二连接节点，并且其中所述第一串可操作地耦合 穿过第一班巴士和第二班车。 此外，所述至少一个支腿包括经由第一连接节点和第二连接节点可操作地耦合到第一串的第二串，其中第二串包括多个开关单元。 还提出了一种电源转换方法。
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