公开(公告)号：US10372569B2

公开(公告)日：2019-08-06

申请号：US15218822

申请日：2016-07-25

Applicant: General Electric Company

Inventor： William James Premerlani ,  Chaitanya Ashok Baone ,  Yan Pan

IPC: G06F11/22 ,  G06F11/32 ,  G06F11/36 ,  G06F21/55 ,  H04L29/06 ,  H04L29/08 ,  G05B23/02

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.

公开(公告)号：US20190033801A1

公开(公告)日：2019-01-31

申请号：US15660315

申请日：2017-07-26

Applicant: General Electric Company

Inventor： Chaitanya Ashok Baone ,  Khaled Yehia Bahei-Eldin ,  Yan Pan ,  Reza Ghaemi ,  Xing Wang ,  Naresh Acharya

IPC: G05B15/02 ,  G01R23/175 ,  G06Q50/06 ,  H02J3/18 ,  H02J3/14 ,  G05F1/66 ,  H02J3/24 ,  G06Q10/08

Abstract: An optimization-based method and system is disclosed to enable heterogeneous loads and distributed energy resources (DERs) to participate in grid ancillary services, such as spinning and non-spinning reserves, and ramping reserves. The method includes receiving inputs for decision parameters for optimizing an objective for obtaining flexible reserve power, solving the objective for obtaining flexible reserve power, determining a reserve power schedule for a prediction horizon for providing flexible reserve power based on the objective, generating a service bid based on the reserve power schedule for the power grid; and when the service bid is accepted, providing flexible reserve power to the power grid based on the service bid.

公开(公告)号：US08963558B2

公开(公告)日：2015-02-24

申请号：US13665479

申请日：2012-10-31

Applicant: General Electric Company

Inventor： Yan Pan ,  William James Premerlani

IPC: G01R31/08 ,  H02H3/30 ,  H02H7/26 ,  H02H1/00

CPC classification number: G01R31/08 ,  H02H1/0061 ,  H02H3/305 ,  H02H7/263

Abstract: A current differential protection system for a multi-terminal power line includes a current sensor for sensing a current at a local terminal, a controller for time synchronizing the local terminal and remote terminals, and a fault detection module to detect a fault in the multi-terminal power line if a differential current exceeds a threshold value. The controller includes a time measurement exchange module for exchanging time stamp data with remote terminals, an upper range clock for exchanging time stamp data with remote terminals and a lower range clock for indexing the current at the local terminal. A first time period of the upper range clock is N times a second time period of the lower range clock where N is a number of multi-terminals. The controller includes a clock offset calculation module for determining an average time offset based on time stamp data from remote terminals and the local terminal.

Abstract translation: 一种用于多终端电力线路的电流差动保护系统，包括用于感测本地终端电流的电流传感器，用于使本地终端和远端终端同步的控制器，以及用于检测多终端电力线路故障的故障检测模块， 如果差分电流超过阈值，则终端电力线。 控制器包括用于与远程终端交换时间戳数据的时间测量交换模块，用于与远程终端交换时间戳数据的较高范围时钟和用于对本地终端的电流进行索引的较低范围时钟。 上限范围时钟的第一时间段是下限时钟的第二时间段的N倍，其中N是多个终端的数量。 控制器包括时钟偏移计算模块，用于基于来自远程终端和本地终端的时间戳数据来确定平均时间偏移。

公开(公告)号：US20150051850A1

公开(公告)日：2015-02-19

申请号：US13968684

申请日：2013-08-16

Applicant: General Electric Company

Inventor： Yan Pan ,  William James Premerlani

IPC: G01R31/34 ,  G01R19/25

CPC classification number: G01R31/343 ,  G01R19/2513 ,  H02H3/382 ,  H02J3/24

Abstract: In accordance with one embodiment, a method for detection of power swing for at least a first range of swing angles between an internal voltage (ES) of a source-end generator and an internal voltage (ER) of a receiving-end generator is provided. The method includes obtaining a voltage magnitude (VS) of the source-end generator, and a current magnitude (IS) of the source-end generator. The method further includes estimating a total reactance (X) between the source-end generator and the receiving-end generator, and estimating a first swing angle (θ) between the ES and the ER as a function of the obtained VS, the obtained IS and the estimated X. The method further includes detecting a power swing condition based on the estimated θ.

Abstract translation: 根据一个实施例，提供一种用于在源端发生器的内部电压（ES）和接收端发生器的内部电压（ER）之间的至少第一旋转角度范围内检测功率摆动的方法， 。 该方法包括获得源端发生器的电压幅度（VS）和源端发生器的电流幅度（IS）。 该方法还包括估计源端发生器和接收端发生器之间的总电抗（X），并且估计ES和ER之间的第一摆角（＆amp; t）作为获得的VS的函数，所获得的 IS和估计的X.该方法还包括基于估计的功率来检测功率摆动条件。

公开(公告)号：US10008856B2

公开(公告)日：2018-06-26

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

IPC: H02J5/00 ,  H02J3/38 ,  H02M3/04 ,  H02M7/04 ,  H02J3/36

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.

公开(公告)号：US09667157B1

公开(公告)日：2017-05-30

申请号：US15140103

申请日：2016-04-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Dong Dong ,  Luis Jose Garces ,  Mohammed Agamy ,  Ravisekhar Nadimpalli Raju ,  Yan Pan

IPC: H02M3/335

CPC classification number: G01R19/175 ,  H02M1/083 ,  H02M3/33523 ,  H02M3/33576 ,  H02M3/33584 ,  H02M7/4826 ,  H02M2001/0058 ,  H02M2007/4815 ,  H03K5/1536 ,  H03K17/166 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: A power converter includes a first bus converter for converting a first direct current (DC) bus voltage into a first high frequency alternating current (AC) voltage and a second bus converter for converting a second high frequency AC voltage into a second DC bus voltage. A resonant circuit couples the first bus converter and the second bus converter. Further, a controller provides 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 voltage detection circuit connected across at least one switching device of the power converter to detect a device voltage across the at least one switching device and a counter to count a number of hard switching detection pulses of the hard switching pulse signal detector. The controller also includes a calculation module to update the number of hard switching detection pulses of the hard switching instances and to generate a new number of hard switching detection pulses and a comparator to compare the new number of hard switching detection pulses with a threshold value and to provide a control signal if the new number exceeds the threshold value.

公开(公告)号：US09639643B2

公开(公告)日：2017-05-02

申请号：US14297748

申请日：2014-06-06

Applicant: General Electric Company

Inventor： Yan Pan ,  Sumit Bose ,  Wei Ren

IPC: G06F17/50 ,  G01D4/00 ,  G06Q10/04 ,  G06Q50/06

CPC classification number: G06F17/5036 ,  G01D4/002 ,  G06F2217/78 ,  G06Q10/04 ,  G06Q50/06 ,  Y02B90/241 ,  Y02B90/248 ,  Y04S20/32 ,  Y04S20/38 ,  Y04S20/52

Abstract: A method for generating electric load models that includes receiving a plurality of measurements representative of input provided by a power source to electric loads is provided. The method includes generating a plurality of combination of model loads and assigning a contribution factor to each model load in each combination. The method further includes computing a match index for each combination for each measurement. The match index is computed by comparing a predicted output of each combination with an actual output generated by the electric loads for each input represented by each measurement. Furthermore, the method includes computing a first likelihood index for each combination based on the match index for each combination for the plurality of measurements. The method also includes computing a second likelihood index for each contribution factor in each combination based on the match index for each combination.

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。

公开(公告)号：US20150356213A1

公开(公告)日：2015-12-10

申请号：US14297748

申请日：2014-06-06

Applicant: General Electric Company

Inventor： Yan Pan ,  Sumit Bose ,  Wei Ren

IPC: G06F17/50 ,  G06F17/18

CPC classification number: G06F17/5036 ,  G01D4/002 ,  G06F2217/78 ,  G06Q10/04 ,  G06Q50/06 ,  Y02B90/241 ,  Y02B90/248 ,  Y04S20/32 ,  Y04S20/38 ,  Y04S20/52

Abstract: A method for generating electric load models that includes receiving a plurality of measurements representative of input provided by a power source to electric loads is provided. The method includes generating a plurality of combination of model loads and assigning a contribution factor to each model load in each combination. The method further includes computing a match index for each combination for each measurement. The match index is computed by comparing a predicted output of each combination with an actual output generated by the electric loads for each input represented by each measurement. Furthermore, the method includes computing a first likelihood index for each combination based on the match index for each combination for the plurality of measurements. The method also includes computing a second likelihood index for each contribution factor in each combination based on the match index for each combination.

Abstract translation: 提供了一种用于产生电负载模型的方法，其包括将代表由电源提供的输入的多个测量值代表电力负载。 该方法包括产生模型负载的多个组合并且在每个组合中为每个模型负载分配贡献因子。 该方法还包括为每个测量计算每个组合的匹配指数。 通过将每个组合的预测输出与由每个测量表示的每个输入的电负载产生的实际输出进行比较来计算匹配指数。 此外，该方法包括基于针对多个测量的每个组合的匹配索引来计算每个组合的第一似然度指数。 该方法还包括基于每个组合的匹配指数来计算每个组合中每个贡献因子的第二似然度指数。

公开(公告)号：US10700523B2

公开(公告)日：2020-06-30

申请号：US15688370

申请日：2017-08-28

Applicant: General Electric Company

Inventor： Yan Pan ,  William James Premerlani

IPC: G06Q50/06 ,  H02J3/28 ,  H02J3/00

Abstract: A method for short term load forecasting in a power grid includes obtaining historical data comprising power data, load data and weather data corresponding to time index data recorded from a location in a power distribution network of the power grid. The method further includes receiving power grid data comprising a plurality of power values, and a plurality of weather parameter values corresponding to a plurality of recent time instant values. The method also includes generating modified historical data using statistical techniques to rectify error conditions. The method further includes estimating one or more power values at a future time instant based on the modified historical data and the power grid data. The method also includes balancing load of the power distribution network based on the estimated one or more power values.