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公开(公告)号：US20220158540A1
公开(公告)日：2022-05-19
申请号：US17439157
申请日：2019-03-15
Applicant: General Electric Company
Inventor： Zheyu Zhang , Ramanujam Ramabhadran , Douglas Carl Hofer , Ahmed Elasser
Abstract: A customizable power conversion system (1000) is configured to operate with multiple alternating current (AC) and direct current (DC) power sources (1001,1003) and supplies multiple AC and DC loads (1018,1020,1022,1024). The customizable power conversion system is also configured to be assembled from a plurality of customizable power converters (1004,1006,1008,1010,1012), each of which is configured to function as a building block of the customizable power conversion system. More particularly, each customizable power converter may be configured as any DC/DC, DC/AC, AC/DC, or AC/AC converter, such as any of i) an inverter, ii) a DC/DC converter for use with a photovoltaic (PV) array (or string of PV arrays), and iii) a DC/DC converter for use with an energy storage element (e.g., a battery or battery string).
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2.发明申请公开(公告)号：US20200176360A1
公开(公告)日：2020-06-04
申请号：US16203777
申请日：2018-11-29
Applicant: General Electric Company
Inventor： Christopher James Kapusta , Ramanujam Ramabhadran , Kum-Kang Huh , Brian Lynn Rowden , Glenn Scott Claydon , Ahmed Elasser
IPC: H01L23/498 , H01L23/64 , H01L23/538 , H01L21/56 , H01L23/00 , H01L29/20
Abstract: A modular electronics package is disclosed that includes a first and second electronics packages, with each of the first and second electronics packages including a metallized insulating substrate and a solid-state switching device positioned on the metallized insulating substrate, the solid-state switching device comprising a plurality of contact pads electrically coupled to the first conductor layer of the metallized insulating substrate. A conductive joining material is positioned between the first electronics package and the second electronics package to electrically connect them together. The first electronics package and the second electronics package are stacked with one another to form a half-bridge unit cell, with the half-bridge unit cell having a current path through the solid-state switching device in the first electronics package and a close coupled return current path through the solid-state switching device in the second electronics package in opposite flow directions.
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公开(公告)号：US10431978B2
公开(公告)日：2019-10-01
申请号：US15673520
申请日：2017-08-10
Applicant: General Electric Company
Inventor： Fengfeng Tao , Ahmed Elasser , Song Chi , Maja Harfman Todorovic
Abstract: A system and method for conditioning DC power received from hybrid DC power sources is disclosed. A power conversion circuit is coupled to a respective DC power source to selectively condition the output power generated thereby to a DC bus voltage. The power conversion circuit includes a switch arrangement and capacitors arranged to provide a charge balancing in the power conversion circuit. A controller in operable communication with the switch arrangement receives inputs on a DC bus voltage and at least one parameter related to operation of the DC power source, and determines an adjustable voltage to be output from the conversion circuit to the DC bus based on the received inputs. The controller then selectively controls operation of the switch arrangement in order to generate the determined adjustable voltage.
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公开(公告)号：US11538614B2
公开(公告)日：2022-12-27
申请号：US16689438
申请日：2019-11-20
Applicant: General Electric Company
Inventor： Ibrahima Ndiaye , Omar Mendez-Zamora , Enrique Betancourt-Ramirez , Ahmed Elasser , Jovan Z. Bebic , Yazhou Jiang , Jesus Avila-Montes
Abstract: A system includes conductive windings extending around a magnetic core and impedance-varying windings extending around the magnetic core. The impedance-varying windings include positive windings and negative windings. The conductive windings and the impedance-varying windings conduct electric current around the magnetic core. The system includes a first impedance tap changer that is electrically coupled with the positive windings of the impedance-varying windings and a second impedance tap changer electrically coupled with the negative windings of the impedance-varying windings. A controller controls the first impedance tap changer and the second impedance tap changer to change an impedance of the system by changing which portion of the positive windings and which portion of the negative windings are conductively coupled with the conductive windings, and which portion of the positive windings and which portion of the negative windings are disconnected from the conductive windings.
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公开(公告)号：US10168372B2
公开(公告)日：2019-01-01
申请号：US15379126
申请日：2016-12-14
Applicant: General Electric Company
Inventor： William James Premerlani , Ibrahima Ndiaye , Kum-Kang Huh , Ahmed Elasser
Abstract: A system and method for leakage current detection and fault location identification in a DC power circuit is disclosed. The system includes a plurality of DC leakage current detectors positioned throughout the DC power circuit, the DC leakage current detectors configured to sense and locate a leakage current fault in the DC power circuit. Each of the DC leakage current detectors is configured to generate a net voltage at an output thereof indicative of whether a leakage current fault is present at a location at which the respective DC leakage current detector is positioned. A logic device in operable communication with the DC leakage current detectors receives output signals from each DC leakage current detector comprising the net voltage output and locates the leakage current fault in the DC power circuit based on the output signals received from the plurality of DC leakage current detectors.
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Patent Agency Ranking
公开(公告)号：US10110013B2
公开(公告)日：2018-10-23
申请号：US14808783
申请日：2015-07-24
Applicant: General Electric Company
Inventor： Dong Dong , Antonio Caiafa , Mohammed Agamy , Ahmed Elasser , Philip Michael Cioffi
Abstract: A switch assembly includes one or more solid state semiconductor switches configured to be disposed within a downhole pipe assembly. The one or more switches are configured to operate in a closed state to conduct electric current supplied by a power source disposed above a surface to pumps disposed beneath the surface to cause the pumps to extract a resource from beneath the surface via the pipe assembly. The one or more switches also are configured to operate in an open state to stop conducting the electric current from the power source to the pumps.
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公开(公告)号：US09899838B2
公开(公告)日：2018-02-20
申请号：US14337782
申请日：2014-07-22
Applicant: General Electric Company
Inventor： Ahmed Elasser , Jeremy Daniel Van Dam , David Allan Torrey
CPC classification number: H02J3/26 , E21B43/128 , H02M5/2573 , Y02E40/50
Abstract: Power delivery systems and methods described herein conductively couple several input lines with a cable that conducts a multi-phase electric current. The input lines separately conduct different phases of the electric current. Output lines are conductively coupled with plural machines, and separately conduct the different phases of the electric current. Plural switching devices are conductively coupled with the input lines and with the output lines, and are used to control the switching devices in order to conduct the different phases of the electric current to the machines. A first set of the switching devices is closed to separately conduct the different phases of the electric current to a first machine of the machines. A different, second set of the switching devices is separately closed to separately conduct the different phases of the electric current to a different, second machine of the machines.
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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.
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公开(公告)号：US11784600B2
公开(公告)日：2023-10-10
申请号：US15834304
申请日：2017-12-07
Applicant: General Electric Company
Inventor： Fei Xu , Kum-Kang Huh , Ahmed Elasser , Mohammed Agamy
CPC classification number: H02P27/06 , H02M3/158 , H02M3/1582 , H02M1/0058 , H02P2201/09 , H02P2201/11 , Y02B70/10
Abstract: Systems and methods are provided for a soft switching topology for a direct current (DC)-DC converter. The systems and methods determine an operational status of an electric motor, and activate at least one of an upper or lower first or second semiconductor switches based on an operation of the electric motor. The first and second switching circuits are conductively coupled to a power inverter circuit. The systems and methods include deliver an adjusted voltage to one of the power inverter circuit or a power circuit based on the operational status of the electric motor.
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公开(公告)号：US20210151235A1
公开(公告)日：2021-05-20
申请号：US16689438
申请日：2019-11-20
Applicant: General Electric Company
Inventor： Ibrahima Ndiaye , Omar Mendez-Zamora , Enrique Betancourt-Ramirez , Ahmed Elasser , Jovan Z. Bebic , Yazhou Jiang , Jesus Avila-Montes
Abstract: A system includes conductive windings extending around a magnetic core and impedance-varying windings extending around the magnetic core. The impedance-varying windings include positive windings and negative windings. The conductive windings and the impedance-varying windings conduct electric current around the magnetic core. The system includes a first impedance tap changer that is electrically coupled with the positive windings of the impedance-varying windings and a second impedance tap changer electrically coupled with the negative windings of the impedance-varying windings. A controller controls the first impedance tap changer and the second impedance tap changer to change an impedance of the system by changing which portion of the positive windings and which portion of the negative windings are conductively coupled with the conductive windings, and which portion of the positive windings and which portion of the negative windings are disconnected from the conductive windings.
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