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公开(公告)号：US11846665B2
公开(公告)日：2023-12-19
申请号：US17412343
申请日：2021-08-26
Applicant: General Electric Company
Inventor： Lili Zhang , Karim Younsi , Christopher Michael Calebrese , John Russell Yagielski , Han Xiong
CPC classification number: G01R31/1227 , G01R31/008 , G01R31/343
Abstract: Aspects of the present disclosure are directed to systems and methods for detecting Partial Discharge (PD) associated with wide bandgap semiconductor-based electrical drive systems in real time. In one aspect, signals, including noise associated with drive switching and other background noises are detected using a sensing device. The signals are received by a real-time spectrum analyzer. The spectrum analyzer transforms the signals into the frequency domain and determines or registers the frequency domain profiles of the signals. The spectrum analyzer performs signal discrimination between at least one other signal included within the signals and switching noise based on their frequency domain profiles. Based on the discrimination analysis, the presence of a partial discharge signal may be detected. A physics-based signal discrimination approach can also be used for signal discrimination, for example utilizing pressure-dependency of characteristics of a PD signal.
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公开(公告)号：US20230336045A1
公开(公告)日：2023-10-19
申请号：US17659097
申请日：2022-04-13
Applicant: General Electric Company
Inventor： Matthew Robert Martin , Karim Younsi , Nolan Gregg Curwen , Wei Zhang , John Russell Yagielski
Abstract: An electric component for an electric machine includes a body having slots defined therein, and a conductive winding extending out of axial end(s) of the slot(s). The electric component may include any electric machine component having conductive windings, e.g., a stator for a generator. The electric component includes a resin dam around the conductive winding at axial end(s) of the slot(s). The resin dam blocks liquid communication through at least a space between the conductive winding and an inner surface of the slot(s), during manufacture. The electric component also includes a (solidified) insulating resin in the slot(s) and against the resin dam(s) at the axial end(s) of the slot(s). Any number of the conductive windings and slots may include a resin dam, e.g., one, some or all. The resin dams ensure complete filling of the slots and encapsulation of the conductive windings.
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公开(公告)号：US20230046156A1
公开(公告)日：2023-02-16
申请号：US17883809
申请日：2022-08-09
Applicant: General Electric Company
Inventor： Weijun Yin , Karim Younsi , Ibrahima Ndiaye
IPC: B64D27/24 , H02K5/08 , H01M50/249 , H01M50/588 , H01M50/298 , H01M50/59 , H01M8/02
Abstract: An electric component for an electric system that includes a working component, a housing that encloses the working component, and an electrical insulator that is disposed between the housing and the working component.
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公开(公告)号：US20230011028A1
公开(公告)日：2023-01-12
申请号：US17783356
申请日：2019-12-17
Applicant: General Electric Company
Inventor： Lijun He , Mohammad Attia , Biao Fang , Liwei Hao , Karim Younsi , Honggang Wang
Abstract: A method for monitoring at least one rotor blade of a wind turbine includes implementing, via a controller, a control scheme for monitoring blade damage of the at least one rotor blade. The control scheme includes monitoring at least one electrical condition of a pitch system of the wind turbine. The method also includes converting the electrical condition(s) of the pitch system into a frequency domain. Further, the method includes determining one or more peaks of the frequency domain around a frequency component related to a natural frequency of the rotor blade. Moreover, the method includes determining a frequency deviation between the one or more peaks of the frequency domain and the frequency component related to the natural frequency of the rotor blade. As such, a frequency deviation outside of a predetermined frequency range is indicative of a rotor blade anomaly. Thus, the method includes implementing a control action when the frequency deviation is outside of the predetermined frequency range.
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公开(公告)号：US20220065915A1
公开(公告)日：2022-03-03
申请号：US17412343
申请日：2021-08-26
Applicant: General Electric Company
Inventor： Lili Zhang , Karim Younsi , Christopher Michael Calebrese , John Russell Yagielski , Han Xiong
Abstract: Aspects of the present disclosure are directed to systems and methods for detecting Partial Discharge (PD) associated with wide bandgap semiconductor-based electrical drive systems in real time. In one aspect, signals, including noise associated with drive switching and other background noises are detected using a sensing device. The signals are received by a real-time spectrum analyzer. The spectrum analyzer transforms the signals into the frequency domain and determines or registers the frequency domain profiles of the signals. The spectrum analyzer performs signal discrimination between at least one other signal included within the signals and switching noise based on their frequency domain profiles. Based on the discrimination analysis, the presence of a partial discharge signal may be detected. A physics-based signal discrimination approach can also be used for signal discrimination, for example utilizing pressure-dependency of characteristics of a PD signal.
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Patent Agency Ranking
公开(公告)号：US11099531B2
公开(公告)日：2021-08-24
申请号：US15941064
申请日：2018-03-30
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Prabhakar Neti , Karim Younsi , Deepak Aravind , Xu Han
Abstract: A method of controlling an operation of a mechanical transmission system includes receiving motor-load data corresponding to the mechanical transmission system. The method further includes receiving, by a digital motor unit, one or more motor input parameters and generating motor parameter estimates of one or more of the plurality of motor parameters. The method also includes receiving, by a digital load unit, one or more motor parameter estimates from the digital motor unit and generating load parameter estimates corresponding to one or more load parameters. The digital motor unit and the digital load unit is a real-time operational model of the motor unit and the load unit respectively. The method also includes controlling the operation of the mechanical transmission system based on one or more of the motor-load data, motor parameter estimates and load parameter estimates.
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公开(公告)号：US11087920B2
公开(公告)日：2021-08-10
申请号：US15941070
申请日：2018-03-30
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Prabhakar Neti , Karim Younsi , Deepak Aravind
Abstract: A method for controlling operation of transformer system includes receiving, by a controller unit, transformer data corresponding to a transformer. The transformer data includes a plurality of transformer input parameters and a plurality of transformer output parameters. The method further includes receiving, by a digital transformer unit, the plurality of transformer input parameters from the controller unit. The digital transformer unit is a real-time operational model of the transformer. The method also includes generating, by the digital transformer unit, a plurality of transformer output parameter estimates corresponding to the plurality of transformer output parameters. The method further includes controlling operation of the transformer, by the controller unit, based on at least one of the transformer data and the plurality of transformer output parameter estimates.
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公开(公告)号：US10345419B2
公开(公告)日：2019-07-09
申请号：US14977103
申请日：2015-12-21
Applicant: General Electric Company
Inventor： Prabhakar Neti , Karim Younsi , Dan Tho Lu
Abstract: Systems and methods are disclosed for calibration and compensation of on-line current transformers. In certain embodiments, a method to calibrate a single current transformer by use of an AC injected current is provided. In other embodiments, a method to calibrate and compensate multiple current transformers using a single AC injected current is provided. In further embodiments, a system for calibration and compensation of multiple current transformers is provided. The adequate frequency of the injected current as well as other characteristics for adequate use in some embodiments is provided.
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公开(公告)号：US20190063329A1
公开(公告)日：2019-02-28
申请号：US15684546
申请日：2017-08-23
Applicant: General Electric Company
Inventor： Badri Narayan Ramamurthi , Svetlana Selezneva , Mohamed Rahmane , Andrey Meshkov , Karim Younsi , Mark Wayne McWaters , Philip Nose Alberti
IPC: F02C7/266
Abstract: An igniter assembly for a gas turbine combustor includes a first electrode, a second electrode, and an insulator. The first electrode, the second electrode, and the insulator form a cavity, the second electrode forms an outlet passage extending from the cavity, a maximum cross-sectional area of the cavity is greater than a cross-sectional area of the outlet passage, and the cross-sectional area of the outlet passage is substantially constant along a longitudinal extent of the outlet passage. In addition, the first electrode and the second electrode are configured to ionize gas within the cavity in response to an electrical current applied to the first electrode or to the second electrode.
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公开(公告)号：US20190013651A1
公开(公告)日：2019-01-10
申请号：US16130669
申请日：2018-09-13
Applicant: General Electric Company
Inventor： Joseph Darryl Michael , Timothy John Sommerer , Jason Fredrick Trotter , Mohamed Rahmane , Karim Younsi
Abstract: Embodiments of the present disclosure relate to a spark gap device that includes a first electrode having a first surface and a second electrode having a second surface offset from and facing the first surface. The spark gap device also includes a light source configured to emit light toward at least the first surface such that photons emitted by the light source when the spark gap is operated are incident on the first surface and cause electron emission from the first surface. The light source includes a discharge probe having a third electrode sealed in a tube filled with an inert gas. The spark gap device may not include a radioactive component.
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