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公开(公告)号：US20180373020A1
公开(公告)日：2018-12-27
申请号：US15632002
申请日：2017-06-23
Applicant: General Electric Company
Inventor： Ruxi Wang , Douglas Link , Melissa Freeman , Fengfeng Tao , Juan Antonio Sabate , Eladio Clemente Delgado
Abstract: The present disclosure presents techniques to facilitate improving operation of an electrical system, which includes a bus structure that cascades multiple electrical devices. The bus structure includes a first outer conductive layer implemented as a positive layer; a second outer conductive layer implemented as a negative layer; a first intermediate conductive layer neighboring the first outer conductive layer; a second intermediate conductive layer neighboring the second outer conductive layer; and a third intermediate conductive layer neighboring the second intermediate conductive layer, in which the third intermediate conductive layer is implemented as an inter-device layer that facilitates electrically coupling at least two of the electrical devices in series. The first intermediate conductive layer is implemented as a negative layer and the second intermediate conductive layer is implemented as a positive layer to facilitate reducing stray inductance and/or increasing stray capacitance introduced in the electrical system during operation.
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公开(公告)号：US10135401B2
公开(公告)日：2018-11-20
申请号：US15510392
申请日：2015-09-10
Applicant: General Electric Company
Inventor： Ying Mei , Pengcheng Zhu , Juan Antonio Sabate , Song Chi , Ruxi Wang , Jianguo Xiao
IPC: H03F3/217 , H03F1/26 , H03F1/30 , G01R33/385
Abstract: A switching amplifier includes a plurality of cascade elements, each bridge circuit includes an inductive load coupled between a first leg terminal of one of the at least two leg circuits and a second leg terminal of another one of the at least two leg circuits. A first leg voltage of the first leg terminal have a phase shift relative to a second leg voltage of the second leg terminal, the phase shift is used for causing the inductive load to store electric energy and generating a minimum circulating current−I min or I min sufficient to effect conducting of a corresponding diode; each of the switches is configured to be turned on if the corresponding diode conducts current to effect zero voltage switching of the corresponding switch. The minimum circulating current−I min or I min is equal to a constant value.
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公开(公告)号：US09742185B2
公开(公告)日：2017-08-22
申请号：US14698576
申请日：2015-04-28
Applicant: General Electric Company
Inventor： Ruxi Wang , Satish Prabhakaran
CPC classification number: H02H9/02 , H02H3/087 , H02H7/222 , H03K17/165 , H03K17/6874
Abstract: A direct current circuit breaker includes main circuit for carrying a main-path current, and a transient circuit for carrying a transient-path current. The main circuit includes a first solid state switch and a main contactor. The first solid state switch is coupled in series with the main contactor. The transient circuit is coupled in parallel with the main circuit. The transient circuit includes an auxiliary contactor coupled in series with a second solid state switch. The second solid state switch closes when the main-path current exceeds a first threshold. The first solid state switch then opens. The main contactor opens when the main-path current falls below a second threshold. Then the second solid state switch opens. The auxiliary contactor opens when the transient-path current falls below the second threshold and after the second solid state switch opens.
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公开(公告)号：US20160105018A1
公开(公告)日：2016-04-14
申请号：US14510575
申请日：2014-10-09
Applicant: General Electric Company
Inventor： Ruxi Wang , William James Premerlani , Antonio Caiafa , Yan Pan
IPC: H02H9/02
CPC classification number: H03K17/92 , H01H9/541 , H01H9/542 , H01H2009/543
Abstract: A circuit breaking system includes a first branch including at least one solid-state snubber; a second branch coupled in parallel to the first branch and including a superconductor and a cryogenic contactor coupled in series; and a controller operatively coupled to the at least one solid-state snubber and the cryogenic contactor and programmed to, when a fault occurs in the load circuit, activate the at least one solid-state snubber for migrating flow of the electrical current from the second branch to the first branch, and, when the fault is cleared in the load circuit, activate the cryogenic contactor for migrating the flow of the electrical current from the first branch to the second branch.
Abstract translation: 断路系统包括包括至少一个固态缓冲器的第一分支; 第二分支并联耦合到第一分支并且包括串联耦合的超导体和低温接触器; 以及控制器，其可操作地耦合到所述至少一个固态缓冲器和所述低温接触器，并且被编程为当所述负载电路中发生故障时，激活所述至少一个固态缓冲器，用于使所述电流从所述第二 分支到第一分支，并且当故障在负载电路中被清除时，激活用于将电流从第一分支移动到第二分支的低温接触器。
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公开(公告)号：US11605957B2
公开(公告)日：2023-03-14
申请号：US16929904
申请日：2020-07-15
Applicant: General Electric Company
Inventor： Ruxi Wang , Tomas Sadilek
Abstract: A power supply system includes a set of power supply units, each power supply unit arranged electrically in series and defining a common power supply, each power supply unit having a power module and a selective bypass for selectively bypassing the respective power module. The power supply system can meet a power demand.
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Patent Agency Ranking
公开(公告)号：US10608565B2
公开(公告)日：2020-03-31
申请号：US15834059
申请日：2017-12-07
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Yash Veer Singh , Ruxi Wang , Satish Prabhakaran , Cong Li
Abstract: An electrical power unit is disclosed. The electrical power unit includes a controller configured to generate a first control signal based on a first operational state of an engine, a multiphase electrical machine including a plurality of three-phase windings; and an electrical power conditioning subunit operatively coupled to the controller, where the electrical power conditioning subunit comprises a plurality of converters, where at least one converter is electrically coupled to a corresponding three-phase winding of the plurality of three-phase windings based on the first control signal, and where the electrical power conditioning subunit is configured to transmit a first electrical power from the at least one converter to the corresponding three-phase winding, where the multiphase electrical machine is configured to generate a mechanical power based on the first electrical power and rotate a crankshaft operatively coupled to the engine based on the generated mechanical power to start the engine.
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公开(公告)号：US20190235035A1
公开(公告)日：2019-08-01
申请号：US15882835
申请日：2018-01-29
Applicant: General Electric Company
Inventor： Ruxi Wang , Krishna Mainali , Juan Antonio Sabate , Xiaohu Liu , Fengfeng Tao
Abstract: A gate driver circuit is provided. The gate driver circuit includes an isolated gate driver power supply circuit. The isolated gate driver power supply circuit includes a coreless transformer and a resonance converter coupled to the coreless transformer. A method of manufacturing an isolated gate driver power supply circuit for a gate driver circuit is also provided.
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公开(公告)号：US20190181786A1
公开(公告)日：2019-06-13
申请号：US15834059
申请日：2017-12-07
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Yash Veer Singh , Ruxi Wang , Satish Prabhakaran , Cong Li
Abstract: An electrical power unit is disclosed. The electrical power unit includes a controller configured to generate a first control signal based on a first operational state of an engine, a multiphase electrical machine including a plurality of three-phase windings; and an electrical power conditioning subunit operatively coupled to the controller, where the electrical power conditioning subunit comprises a plurality of converters, where at least one converter is electrically coupled to a corresponding three-phase winding of the plurality of three-phase windings based on the first control signal, and where the electrical power conditioning subunit is configured to transmit a first electrical power from the at least one converter to the corresponding three-phase winding, where the multiphase electrical machine is configured to generate a mechanical power based on the first electrical power and rotate a crankshaft operatively coupled to the engine based on the generated mechanical power to start the engine.
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公开(公告)号：US10302718B2
公开(公告)日：2019-05-28
申请号：US15523162
申请日：2015-10-27
Applicant: General Electric Company
Inventor： Ruxi Wang , Juan Sabate , Song Chi , Ying Mei
IPC: G01R33/54 , H03F3/217 , G01R33/385
Abstract: A method is used for operating a switching amplifier, the switching amplifier includes a plurality of cascade elements. The method includes: coupling the cascade elements in series between two terminals of a load; providing two leg circuits each comprised of switches in each of the cascade elements; and controlling all of the switches comprised in the switching amplifier using space vector modulation (SVM), such that a change of a common mode (CM) voltage generated by the switching amplifier is in a predetermined range.
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公开(公告)号：US20180212520A1
公开(公告)日：2018-07-26
申请号：US15414300
申请日：2017-01-24
Applicant: General Electric Company
Inventor： Di Zhang , Ruxi Wang , Satish Prabhakaran
CPC classification number: H02M3/158 , H02M1/12 , H02M1/126 , H02M1/40 , H02M3/1584 , H02M3/33569 , H02M7/5387 , H02M2001/0064 , H02M2003/1586
Abstract: Systems and methods related to controlling flux through an inductor of a power converter are described. For example, a control system is configured to control a multi-level converter having a first leg, a second leg, and at least one inductor. The control system includes a processor operatively coupled to a memory. The processor receives a reference signal. The processor determine flux through at least one inductor of a converter. The processor controls a temporal distribution of the flux through the at least one inductor based on the flux through the at least one inductor according to the reference signal.
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