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11.发明授权High sensitivity differential current transformer for insulation health monitoring 有权高灵敏度差动电流互感器，用于绝缘健康监测公开(公告)号：US08773139B2
公开(公告)日：2014-07-08
申请号：US13852500
申请日：2013-03-28
Applicant: General Electric Company
Inventor： Karim Younsi , Manoj Ramprasad Shah , Yingneng Zhou , Charles David Whitefield, II , Prabhakar Neti
CPC classification number: G01R31/025 , G01R15/185 , G01R31/1227 , G01R31/343 , G01R31/346 , H01F38/30
Abstract: A current transformer is provided. The current transformer comprises an inner magnetic core having a central opening, an outer sense core circumscribing the inner magnetic core, at least one pair of conductors extending through the central opening and positioned symmetrically with respect to a center point of the inner magnetic core, and one or more coils disposed on the inner magnetic core, the outer sense core, or both, in a magnetically balanced configuration relative to a magnetic neutral axis of the inner magnetic core.
Abstract translation: 提供电流互感器。 电流互感器包括具有中心开口的内部磁芯，围绕内部磁芯的外部感知芯，至少一对延伸穿过中心开口并且相对于内部磁芯的中心点对称定位的导体，以及 设置在内磁芯上的一个或多个线圈，外感测芯或两者，相对于内磁芯的磁中性轴以磁平衡构型。
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12.发明申请HIGH SENSITIVITY DIFFERENTIAL CURRENT TRANSFORMER FOR INSULATION HEALTH MONITORING 有权用于绝缘健康监测的高灵敏度差分电流互感器公开(公告)号：US20130234722A1
公开(公告)日：2013-09-12
申请号：US13852500
申请日：2013-03-28
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Karim Younsi , Manoj Ramprasad Shah , Yingneng Zhou , Charles David Whitefield, II , Prabhakar Neti
IPC: G01R31/02
CPC classification number: G01R31/025 , G01R15/185 , G01R31/1227 , G01R31/343 , G01R31/346 , H01F38/30
Abstract: A current transformer is provided. The current transformer comprises an inner magnetic core having a central opening, an outer sense core circumscribing the inner magnetic core, at least one pair of conductors extending through the central opening and positioned symmetrically with respect to a center point of the inner magnetic core, and one or more coils disposed on the inner magnetic core, the outer sense core, or both, in a magnetically balanced configuration relative to a magnetic neutral axis of the inner magnetic core
Abstract translation: 提供电流互感器。 电流互感器包括具有中心开口的内部磁芯，围绕内部磁芯的外部感知芯，至少一对延伸穿过中心开口并且相对于内部磁芯的中心点对称定位的导体，以及 一个或多个线圈设置在内磁芯，外感测芯或两者上，磁性平衡构型相对于内磁芯的磁中性轴线
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公开(公告)号：US11119454B2
公开(公告)日：2021-09-14
申请号：US15941067
申请日：2018-03-30
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Prabhakar Neti , Karim Younsi , Deepak Aravind
Abstract: A method for controlling operation of an electric power generation system includes receiving power generator data corresponding to the electric power generation system. The method further includes receiving, using a digital prime mover unit, a set-point parameter corresponding to a prime mover unit and generating one or more prime mover parameter estimates corresponding to the plurality of prime mover parameters. Further, the method includes receiving, using a digital generator unit, one or more prime mover parameter estimates and generating one or more generator parameter estimates corresponding to the plurality of generator parameters. The digital prime mover unit and the digital generator unit are real-time operational models of the prime mover unit and the generator unit. The method also includes controlling the operation of the electric power generation system based on at least one or more of the power generator data, the prime mover parameter estimates, and the generator parameter estimates.
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公开(公告)号：US10778124B2
公开(公告)日：2020-09-15
申请号：US15442068
申请日：2017-02-24
Applicant: General Electric Company
Inventor： Nathaniel Benedict Hawes , Stefan Grubic , Prabhakar Neti
IPC: H02K5/132 , H02P6/15 , G01R31/34 , H02P27/04 , H02P29/024
Abstract: A method of controlling an electric motor assembly includes receiving sensor feedback that is based at least in part on electrical properties of a variable frequency power signal provided to the electric motor assembly. The method also includes adjusting the phase angle of the variable frequency power signal provided to the electric motor assembly based at least in part on the sensor feedback. The method also includes determining an operational status of the electric motor assembly that receives the variable frequency power signal based at least in part on the sensor feedback.
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15.发明申请公开(公告)号：US20190229672A1
公开(公告)日：2019-07-25
申请号：US15875761
申请日：2018-01-19
Applicant: General Electric Company
Inventor： Uwe Wiedmann , Xu Han , Nidhishri Tapadia , Jayakrishnan Unnikrishnan , Prabhakar Neti
Abstract: A system may include a motor that has a rotor and a stator. The system may include one or more sensors that measure a voltage signal of a winding of the stator. The system may include a processor that executes computer-executable instructions which, when executed, cause the processor to receive, from the one or more sensors, the voltage signal that includes an induced voltage signal associated with the winding of the stator, to determine a time constant associated with the induced voltage signal based on a decay pattern of the induced voltage signal, to determine a temperature of a rotor based on the time constant, and to adjust one or more operations of the motor based on the temperature.
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Patent Agency Ranking
公开(公告)号：US20170087990A1
公开(公告)日：2017-03-30
申请号：US14869478
申请日：2015-09-29
Applicant: General Electric Company
Inventor： Prabhakar Neti , Kevin Michael Jones , Anthony Paul Fama , Corey Jackson
IPC: B60L3/00
CPC classification number: B60L3/0061
Abstract: A system and method for monitoring a motor of a vehicle system monitor operating conditions of the vehicle system and determine whether the operating conditions of the vehicle system match designated operating conditions. Responsive to determining that the operating conditions of the vehicle system that are monitored match the designated operating conditions, an electrical signature representative of an electric current supplied to the motor of the vehicle system is examined and damage to one or more of the motor of the vehicle system or a mechanical coupling of the motor to one or more of a wheel or axle of the vehicle system is identified based on the electrical signature that is examined.
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公开(公告)号：US20140084937A1
公开(公告)日：2014-03-27
申请号：US13629206
申请日：2012-09-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Prabhakar Neti , Karim Younsi , Yingneng Zhou , Manoj Ramprasad Shah , Pinjia Zhang , Charles David Whitefield, II
IPC: G01R31/34
CPC classification number: G01R31/343 , G01R31/1272 , G01R31/346
Abstract: Systems and methods are disclosed for on-line monitoring of the condition of the stator insulation of an AC motor or an electric generator. In certain embodiments, the system includes a transformer surrounding each pair of input and output cables associated with a given phase of power provided to the AC motor or generated by the electric generator. In another embodiment, a transformer surrounds the three input cables (for an AC motor) or the three output cables (for an electric generator) that correspond to phases of the AC motor or electric generator. In both embodiments, the transformers generate voltages that may be used to monitor leakage currents associated with the cables. A microcontroller monitors the voltages generated by the transformers and determines the condition of the stator insulation of the AC motor or the electric generator based on the voltages.
Abstract translation: 公开了用于在线监测交流电动机或发电机的定子绝缘的状态的系统和方法。 在某些实施例中，系统包括围绕与提供给AC电动机或由发电机产生的给定相电源相关联的每对输入和输出电缆的变压器。 在另一个实施例中，变压器围绕对应于AC电动机或发电机的相位的三个输入电缆（用于AC电动机）或三个输出电缆（用于发电机）。 在两个实施例中，变压器产生可用于监测与电缆相关联的泄漏电流的电压。 微控制器监视变压器产生的电压，并基于电压确定交流电动机或发电机的定子绝缘的状况。
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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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