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    Determining Severity of a Geomagnetic Disturbance on a Power Grid Using Similarity Measures
    1.
    发明申请
    Determining Severity of a Geomagnetic Disturbance on a Power Grid Using Similarity Measures 有权
    使用相似度测量确定电网地磁干扰的严重性

    公开(公告)号：US20170061208A1

    公开(公告)日：2017-03-02

    申请号：US14836191

    申请日：2015-08-26

    申请人： International Business Machines Corporation ,  Hydro-Quebec

    发明人： Chumki Basu ,  Jean Beland ,  Sebastien Guillon ,  Innocent Kamwa

    IPC分类号： G06K9/00

    CPC分类号： G06K9/00536 ,  G06K9/00523 ,  G06K9/6215 ,  G06K2209/27 ,  H02J3/00 ,  H02J2003/007 ,  Y02E60/728 ,  Y02E60/74 ,  Y04S10/265 ,  Y04S10/30

    摘要： Methods, systems, and computer program products for determining severity of a geomagnetic disturbance on a power grid using similarity measures are provided herein. A method includes extracting multiple features of activity associated with geomagnetically induced currents from multiple heterogeneous data streams; comparing the extracted features to historical data related to geomagnetically induced currents to determine a level of similarity between each of the extracted features and the historical data; assigning a level of severity to one or more of the extracted features having a level of similarity with the historical data above a given threshold; and generating a notification comprising (i) a prediction of activity associated with geomagnetically induced currents based on the extracted features having a level of similarity with the historical data above the given threshold, and (ii) the level of severity assigned thereto.

    摘要翻译： 本文提供了使用相似性度量来确定电网的地磁干扰严重性的方法，系统和计算机程序产品。 一种方法包括从多个异构数据流中提取与地磁感应电流相关联的活动的多个特征; 将提取的特征与与地磁感应电流相关的历史数据进行比较，以确定提取的每个特征与历史数据之间的相似性水平; 将一级或多级提取的特征赋予与具有高于给定阈值的历史数据相似程度的级别; 以及生成通知，所述通知包括（i）基于所提取的特征与与所述给定阈值之上的历史数据具有相似程度的级别的与地磁感应电流相关联的活动的预测，以及（ii）分配给其的严重程度。

    GEOMAGNETIC STORM WARNING
    5.
    发明申请
    GEOMAGNETIC STORM WARNING 审中-公开

    公开(公告)号：US20180231686A1

    公开(公告)日：2018-08-16

    申请号：US15433407

    申请日：2017-02-15

    申请人： International Business Machines Corporation ,  HYDRO-QUÉBEC

    发明人： Chumki Basu ,  Luc Cauchon ,  Sébastien Guillon ,  Innocent Kamwa ,  Manikandan Padmanaban

    IPC分类号： G01W1/10

    CPC分类号： G01W1/10

    摘要： A method of receiving a substorm activity data log from one or more remote sensors, where substorm activity is due to solar activity. The method also includes receiving a harmonic distortion data stream from one or more remote observatories monitoring disturbances on a power grid, where the distortion is due to geomagnetically induced currents. The method also includes applying a mathematical model to the harmonic distortion data stream to create a derived harmonic distortion data log, and comparing phase-to-phase similarity of the three phases from the derived harmonic distortion data log. The method also includes predicting future adverse events due to geomagnetically-induced currents on the power grid based at least in part on the comparison and the substorm activity data log, and creating a warning based on the prediction.

    MONITORING OPERATING CONDITIONS OF A TRANSFORMER DURING MAJOR ELECTROMAGNETIC DISTURBANCES
    6.
    发明申请
    MONITORING OPERATING CONDITIONS OF A TRANSFORMER DURING MAJOR ELECTROMAGNETIC DISTURBANCES 审中-公开
    监测主要电磁干扰下变压器的运行条件

    公开(公告)号：US20170003329A1

    公开(公告)日：2017-01-05

    申请号：US14755562

    申请日：2015-06-30

    申请人： International Business Machines Corporation

    发明人： Chumki Basu ,  Manikandan Padmanaban

    IPC分类号： G01R19/28 ,  G01R31/02 ,  G01R19/00

    CPC分类号： G01R19/28 ,  G01R21/1331 ,  G01R31/027

    摘要： Methods and arrangements for computing disruptive current in a transformer. Transformer current is measured, and disruptive current is predicted. Based on the active transformer current and predicted disruptive current, a predicted reactive power and predicted neutral current are determined. At least one corrective action, to be taken with respect to the transformer, is thereupon identified. Other variants and embodiments are broadly contemplated herein.

    摘要翻译： 在变压器中计算破坏电流的方法和布置。 测量变压器电流，并预测破坏电流。 基于有源变压器电流和预测的中断电流，确定预测的无功功率和预测的中性点电流。 因此，确定了对变压器采取的至少一个纠正措施。 本文中广泛考虑了其他变型和实施例。

    SYSTEM AND METHOD FOR COGNITIVE ALARM MANAGEMENT FOR THE POWER GRID
    8.
    发明申请
    SYSTEM AND METHOD FOR COGNITIVE ALARM MANAGEMENT FOR THE POWER GRID 审中-公开
    用于电力网络的认知报警管理系统和方法

    公开(公告)号：US20150066435A1

    公开(公告)日：2015-03-05

    申请号：US14015426

    申请日：2013-08-30

    申请人： International Business Machines Corporation

    发明人： Chumki Basu ,  Kaushik Das ,  Jagabondhu Hazra ,  Devasenapathi P. Seetharamakrishnan

    IPC分类号： G08C19/02 ,  G01R31/08 ,  G01R31/40 ,  G01R21/06

    CPC分类号： G01R31/40 ,  G01R19/2513 ,  G01R31/086 ,  H02H1/0092 ,  H04Q9/00 ,  H04Q2209/60 ,  H04Q2209/823 ,  Y04S10/522

    摘要： Systems and methods for cognitive alarm management in a power grid are described. In one embodiment, sensor measurements are transformed to determine the state of a power grid. Given current state information relating to the power grid, various analyses of the alarms may be conducted to produce various rankings of the alarms (e.g., by severity, graph analyses, etc.). In an embodiment, using power flow analysis, an optimal ranking is identified from the rankings in which a causal alarm is prioritized for resolution. Given the resolution of the causal alarm, remaining alarms (either all or a sub-set) may be resolved without further action. Thus, an embodiment provides an appropriate ranking of alarm conditions in a power grid such that the optimal resolution of alarms may be achieved. Other variants and embodiments are broadly contemplated herein.

    摘要翻译： 描述了电网认知报警管理的系统和方法。 在一个实施例中，传感器测量被变换以确定电网的状态。 给定与电网相关的当前状态信息，可以进行警报的各种分析以产生警报的各种排序（例如，通过严重性，图形分析等）。 在一个实施例中，使用功率流分析，从其中将因果报警优先于分辨率的等级识别出最佳排名。 考虑到因果报警的解决，剩下的报警（全部或一个子集）可能会被解决，无需进一步的操作。 因此，实施例提供了电网中警报状况的适当排序，使得可以实现警报的最佳分辨率。 本文中广泛考虑了其他变型和实施例。

    Geomagnetic storm warning
    9.
    发明授权
    Geomagnetic storm warning 有权

    公开(公告)号：US10371862B2

    公开(公告)日：2019-08-06

    申请号：US15433407

    申请日：2017-02-15

    申请人： International Business Machines Corporation ,  HYDRO-QUÉBEC

    发明人： Chumki Basu ,  Luc Cauchon ,  Sébastien Guillon ,  Innocent Kamwa ,  Manikandan Padmanaban

    IPC分类号： G01W1/10

    摘要： A method of receiving a substorm activity data log from one or more remote sensors, where substorm activity is due to solar activity. The method also includes receiving a harmonic distortion data stream from one or more remote observatories monitoring disturbances on a power grid, where the distortion is due to geomagnetically induced currents. The method also includes applying a mathematical model to the harmonic distortion data stream to create a derived harmonic distortion data log, and comparing phase-to-phase similarity of the three phases from the derived harmonic distortion data log. The method also includes predicting future adverse events due to geomagnetically-induced currents on the power grid based at least in part on the comparison and the substorm activity data log, and creating a warning based on the prediction.

    On-demand detection of electromagnetic disturbances using mobile devices
    10.
    发明授权
    On-demand detection of electromagnetic disturbances using mobile devices 有权

    公开(公告)号：US10261118B2

    公开(公告)日：2019-04-16

    申请号：US15895776

    申请日：2018-02-13

    申请人： International Business Machines Corporation

    发明人： Chumki Basu ,  Younghun Kim ,  Lloyd A. Treinish

    IPC分类号： G01R29/08 ,  H04W4/02 ,  H04W4/70 ,  G08B21/18 ,  G08B29/18

    摘要： A subset of mobile devices is selected from a set of mobile devices located in a local area. From a mobile device in the subset, a magnetic measurement value obtained by performing a magnetic measurement is received. The magnetic measurement value comprises a change in a magnetic property of an immediate surrounding ambient environment of the mobile device. When the magnetic measurement corresponds to a deviation in a network condition in a portion of a network, the portion being located in the local area, a conclusion is output that the deviation is caused by an electromagnetic disturbance (EMD), where an effect of the EMD causes the magnetic measurement value. A notification including an indication of the EMD and an identification of the local area is generated.