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公开(公告)号：US09654102B2
公开(公告)日：2017-05-16
申请号：US14510575
申请日：2014-10-09
Applicant: General Electric Company
Inventor： Ruxi Wang , William James Premerlani , Antonio Caiafa , Yan Pan
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.
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12.发明申请SYSTEMS AND METHODS FOR SWING ANGLE ESTIMATION IN AN ELECTRICAL POWER SYSTEM 审中-公开用于在电力系统中摆动角度估计的系统和方法公开(公告)号：US20150051852A1
公开(公告)日：2015-02-19
申请号：US14519526
申请日：2014-10-21
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Yan Pan , William James Premerlani
IPC: G01R21/133 , G01R25/00
CPC classification number: G01R21/133 , G01R25/00 , H02J3/24
Abstract: A method includes obtaining a voltage phasor, a current phasor and a mechanical rotor angle of a source end generator. A receiving end generator impedance and a line impedance between the source end generator and a receiving end generator is also estimated. Furthermore, a swing angle between an internal voltage of the source end generator and an internal voltage of the receiving end generator as a function of obtained voltage phasor, current phasor, mechanical rotor angle and the impedances is estimated. A power swing condition is then determined based on the estimated swing angle.
Abstract translation: 一种方法包括获得源端发生器的电压相量，电流相量和机械转子角度。 还估计了源端发生器和接收端发生器之间的接收端发生器阻抗和线路阻抗。 此外，估计源端发生器的内部电压与接收端发生器的内部电压之间的摆动角度作为获得的电压相量，电流相量，机械转子角度和阻抗的函数。 然后基于估计的摆动角度确定功率摆动条件。
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公开(公告)号：US08942108B2
公开(公告)日：2015-01-27
申请号：US13714952
申请日：2012-12-14
Applicant: General Electric Company
Inventor： Yan Pan , William James Premerlani
CPC classification number: H04L41/0668 , H02H1/0061 , H02H3/305 , H02J13/00 , H02J13/0079 , H04J3/0638 , H04J3/0641 , H04L12/40 , H04L12/4035 , H04L41/0686 , H04L41/12
Abstract: A differential protection system is provided. The differential protection system includes a local terminal configured to be communicatively coupled directly or indirectly with at least two remote terminals via at least three communication links to form a ring topology or a mesh topology. The differential protection system further includes a controller comprising a communication link decision unit and a clock unit associated with the local terminal. The communication link decision unit is configured to determine some of the at least three communication links as virtually disconnected such that the ring topology or the mesh topology is configured to be converted to a daisy chain topology. The clock unit is configured to time synchronize the local terminal with at least one of the at least two remote terminals when the local terminal and the at least two remote terminals are configured in the daisy chain topology.
Abstract translation: 提供差动保护系统。 差分保护系统包括被配置为经由至少三个通信链路直接或间接地与至少两个远程终端通信地耦合以形成环形拓扑或网格拓扑的本地终端。 差分保护系统还包括控制器，其包括通信链路决定单元和与本地终端相关联的时钟单元。 通信链路决定单元被配置为将所述至少三个通信链路中的一些确定为虚拟断开，使得环形拓扑或网状拓扑被配置为被转换为菊花链拓扑。 时钟单元被配置为当本地终端和至少两个远程终端被配置在菊花链拓扑中时，使本地终端与至少两个远程终端中的至少一个进行时间同步。
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公开(公告)号：US10211747B2
公开(公告)日：2019-02-19
申请号：US16061717
申请日：2016-01-15
Applicant: General Electric Company
Inventor： Mohammed Agamy , Dong Dong , Yan Pan , Luis Jose Garces
Abstract: A direct current (DC) to DC power converter includes a first bus converter for converting a first DC bus voltage into a first high frequency AC voltage and a second bus 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 bus converter and the second bus converter to operate the power converter in a soft switching mode. The controller includes a switching frequency controller for determining a switching frequency signal for the power converter based on a reference output current and a phase shift controller for determining a phase shift signal for the power converter. When the reference output current is lower than the a first load current value the switching frequency signal is maintained at a first switching frequency and the phase shift is determined according to the reference output current. Further, when the reference output current is above a second load current value the switching frequency signal is maintained at a second switching frequency and the phase shift is determined according to the reference output current. When the reference output current is between the first load current value and the second load current value, the switching frequency signal is adjusted according to a value of the reference output current and the phase shift is determined based on the switching frequency, the reference output current and perturbations in the output current.
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公开(公告)号：US10191101B2
公开(公告)日：2019-01-29
申请号：US14556744
申请日：2014-12-01
Applicant: General Electric Company
Abstract: A ground fault detection system for locating a ground fault in a direct current (DC) power transfer system is provided. The system includes a ground fault detection component and a current sensor. The ground fault detection component includes a first switch and a first resistive element electrically coupled to each other in a series configuration. The ground fault detection component also includes a second switch and a second resistive element electrically coupled to each other in a series configuration. Furthermore, the current sensor is operatively coupled to a load and is configured to measure a fault current at the load upon switching at least one of the first switch or the second switch to a conducting state.
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Patent Agency Ranking
公开(公告)号：US20180024900A1
公开(公告)日：2018-01-25
申请号：US15218822
申请日：2016-07-25
Applicant: General Electric Company
Inventor： William James Premerlani , Chaitanya Ashok Baone , Yan Pan
CPC classification number: G06F11/2221 , G05B23/0227 , G06F11/2215 , G06F11/327 , G06F11/3672 , G06F21/554 , H04L63/1416 , H04L63/1425 , H04L63/1466 , H04L67/12 , Y04S40/18 , Y04S40/24
Abstract: A system for detecting false data injection attacks includes one or more sensors configured to each monitor a component and generate signals representing measurement data associated with the component. The system also includes a fault detection computer device configured to: receive the signals representing measurement data from the one or more sensors, receive a fault indication of a fault associated with the component, generate a profile for the component based on the measurement data, and determine an accuracy of the fault indication based upon the generated profile.
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公开(公告)号：US09829880B2
公开(公告)日：2017-11-28
申请号：US14548699
申请日：2014-11-20
Applicant: General Electric Company
Inventor： Chaitanya Ashok Baone , William James Premerlani , Yan Pan , Jing Dai , Santosh Sambamoorthy Veda , Zhenyu Tan
IPC: G06F19/00 , G05B19/406 , G01R19/25 , H02J3/00
CPC classification number: G05B19/406 , G01R19/2513 , G05B2219/32021 , H02J3/008 , H02J2003/007 , Y02E60/728 , Y02E60/76 , Y04S10/265 , Y04S40/22 , Y04S50/10
Abstract: A method for modelling load in a power grid is provided. The method includes obtaining measurement data from a measurement device in the power grid, identifying one or more voltage adjustment events in the power grid from the measurement data, and generating a load model based on one or more voltage factors computed using the one or more voltage adjustment events.
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公开(公告)号：US20170133858A1
公开(公告)日：2017-05-11
申请号：US14935725
申请日：2015-11-09
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Yan Pan , Martin Samuel Butcher , Dong Dong , Martin Richard Ingles , Christof Martin Sihler , Ara Panosyan
CPC classification number: H02J3/386 , H02J3/36 , H02J5/00 , H02J11/00 , H02M3/04 , H02M7/04 , Y02E60/60
Abstract: A power system for offshore application includes a plurality of power circuits. Each of the power circuit includes an alternating current (AC) bus which supplies power to an auxiliary load and is connected to a generator. The power circuit further includes a first direct current (DC) bus having a first DC voltage supplying power to a first load and a second DC bus having a second DC voltage supplying power to a second load. The power circuit also includes a first DC to DC converter coupled between the first DC bus and the second DC bus, wherein the first DC to DC converter is configured for bidirectional power flow and an AC to DC converter coupled between the AC bus and the first DC bus. The first DC bus of at least one power circuit is coupled to the second DC bus of at least another power circuit with a second DC to DC converter. The system also includes a controller configured to control the operation of the first DC to DC converter, second DC to DC converter and the AC to DC converter for regulating the first and second DC voltages. The controller is further configured to provide power to the second DC bus from the at least one AC to DC converter during a first operating state and from the first DC to DC converter during a second operating state.
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公开(公告)号：US20160154046A1
公开(公告)日：2016-06-02
申请号：US14556744
申请日：2014-12-01
Applicant: General Electric Company
CPC classification number: G01R31/025 , G01R31/008 , G01R31/08
Abstract: A ground fault detection system for locating a ground fault in a direct current (DC) power transfer system is provided. The system includes a ground fault detection component and a current sensor. The ground fault detection component includes a first switch and a first resistive element electrically coupled to each other in a series configuration. The ground fault detection component also includes a second switch and a second resistive element electrically coupled to each other in a series configuration. Furthermore, the current sensor is operatively coupled to a load and is configured to measure a fault current at the load upon switching at least one of the first switch or the second switch to a conducting state.
Abstract translation: 提供了用于定位直流（DC）电力传输系统中的接地故障的接地故障检测系统。 该系统包括接地故障检测部件和电流传感器。 接地故障检测部件包括以串联结构彼此电耦合的第一开关和第一电阻元件。 接地故障检测部件还包括以串联配置彼此电耦合的第二开关和第二电阻元件。 此外，电流传感器可操作地耦合到负载，并且被配置为在将第一开关或第二开关中的至少一个切换到导通状态时测量负载处的故障电流。
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公开(公告)号：US20140169157A1
公开(公告)日：2014-06-19
申请号：US13714952
申请日：2012-12-14
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Yan Pan , William James Premerlani
IPC: H04L12/24
CPC classification number: H04L41/0668 , H02H1/0061 , H02H3/305 , H02J13/00 , H02J13/0079 , H04J3/0638 , H04J3/0641 , H04L12/40 , H04L12/4035 , H04L41/0686 , H04L41/12
Abstract: A differential protection system is provided. The differential protection system includes a local terminal configured to be communicatively coupled directly or indirectly with at least two remote terminals via at least three communication links to form a ring topology or a mesh topology. The differential protection system further includes a controller comprising a communication link decision unit and a clock unit associated with the local terminal. The communication link decision unit is configured to determine some of the at least three communication links as virtually disconnected such that the ring topology or the mesh topology is configured to be converted to a daisy chain topology. The clock unit is configured to time synchronize the local terminal with at least one of the at least two remote terminals when the local terminal and the at least two remote terminals are configured in the daisy chain topology.
Abstract translation: 提供差动保护系统。 差分保护系统包括被配置为经由至少三个通信链路直接或间接地与至少两个远程终端通信地耦合以形成环形拓扑或网格拓扑的本地终端。 差分保护系统还包括控制器，其包括通信链路决定单元和与本地终端相关联的时钟单元。 通信链路决定单元被配置为将所述至少三个通信链路中的一些确定为虚拟断开，使得环形拓扑或网状拓扑被配置为被转换为菊花链拓扑。 时钟单元被配置为当本地终端和至少两个远程终端被配置在菊花链拓扑中时，使本地终端与至少两个远程终端中的至少一个进行时间同步。
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