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    Method and control system for handling a reclosing operation in a power system
    3.
    发明授权
    Method and control system for handling a reclosing operation in a power system 有权

    公开(公告)号：US09742181B2

    公开(公告)日：2017-08-22

    申请号：US15300563

    申请日：2015-04-21

    Applicant: ABB Schweiz AG

    Inventor： Kari Saarinen ,  Mirrasoul Mousavi

    IPC: H02H3/06 ,  H02H3/16

    CPC classification number: H02H3/06 ,  H02H3/165

    Abstract: A method of handling a reclosing operation of a recloser in a power system subject to a fault. The method includes a) determining a fault current for each electrical phase, the fault current being determined by a difference between measured current values and a sinusoidal model of a current prior to the fault, bI) calculating a respective sinusoidal model of the fault current for each electrical phase using samples taken before the fault, bII) selecting two sinusoidal models with the largest amplitude to represent faulted electrical phases, bIII) calculating a plurality of sub-features based on the two models, and bIV) determining a main feature value based on the plurality of sub-features, bV) determining, based on the main feature value, whether a temporary fault is present, and c) providing control instructions that the recloser is to reclose in the event that the fault is a temporary fault.

    Method And Control System For Handling A Reclosing Operation In A Power System
    6.
    发明申请
    Method And Control System For Handling A Reclosing Operation In A Power System 有权

    公开(公告)号：US20170110872A1

    公开(公告)日：2017-04-20

    申请号：US15300563

    申请日：2015-04-21

    Applicant: ABB SCHWEIZ AG

    Inventor： Kari Saarinen ,  Mirrasoul Mousavi

    IPC: H02H3/06 ,  H02H3/16

    CPC classification number: H02H3/06 ,  H02H3/165

    Abstract: A method of handling a reclosing operation of a recloser in a power system subject to a fault. The method includes a) determining a fault current for each electrical phase, the fault current being determined by a difference between measured current values and a sinusoidal model of a current prior to the fault, bI) calculating a respective sinusoidal model of the fault current for each electrical phase using samples taken before the fault, bII) selecting two sinusoidal models with the largest amplitude to represent faulted electrical phases, bIII) calculating a plurality of sub-features based on the two models, and bIV) determining a main feature value based on the plurality of sub-features, bV) determining, based on the main feature value, whether a temporary fault is present, and c) providing control instructions that the recloser is to reclose in the event that the fault is a temporary fault.

    TRANSFORMER PARAMETER ESTIMATION USING TERMINAL MEASUREMENTS
    8.
    发明申请
    TRANSFORMER PARAMETER ESTIMATION USING TERMINAL MEASUREMENTS 审中-公开
    使用终端测量的变压器参数估计

    公开(公告)号：US20170030958A1

    公开(公告)日：2017-02-02

    申请号：US15294238

    申请日：2016-10-14

    Applicant: ABB Schweiz AG

    Inventor： Ziang Zhang ,  Ning Kang ,  Mirrasoul Mousavi

    IPC: G01R31/02 ,  G01R31/06

    CPC classification number: G01R31/027 ,  G01R31/06 ,  H02H7/045

    Abstract: According to an embodiment of a power network device, the device includes a computer configured to estimate a plurality of parameters internal to a transformer, including estimating a turns ratio of the transformer. The computer performs the parameter estimation based on an equivalent circuit model of the transformer and current and voltage samples which correspond to current and voltage measurements taken at primary side and secondary side terminals of the transformer. The computer indicates when one or more of the estimated parameters deviates from a nominal value by more than a predetermined amount. The computer can be part of an intelligent electronic device configured to acquire analog or digital signals representing the primary side and secondary side current and voltage measurements, or located remotely from the intelligent electronic device e.g. in the control room or substation controller.

    Abstract translation: 根据电力网络设备的实施例，该设备包括被配置为估计变压器内部的多个参数的计算机，包括估计变压器的匝数比。 计算机基于变压器的等效电路模型和电流和电压采样进行参数估计，这些样本对应于在变压器的初级侧和次级侧端子进行的电流和电压测量。 计算机指示估计参数中的一个或多个偏离标称值大于预定量的时间。 计算机可以是智能电子设备的一部分，其被配置为获取表示初级侧和次级侧电流和电压测量的或者位于远离智能电子设备的模拟或数字信号，例如。 在控制室或变电站控制器。

    CYBER-ATTACK DETECTION FOR NETWORKED ELECTRICAL POWER SYSTEM DEVICES
    9.
    发明申请
    CYBER-ATTACK DETECTION FOR NETWORKED ELECTRICAL POWER SYSTEM DEVICES 有权

    公开(公告)号：US20210051173A1

    公开(公告)日：2021-02-18

    申请号：US16542494

    申请日：2019-08-16

    Applicant: ABB Schweiz AG

    Inventor： Mithun P. Acharya ,  Mirrasoul Mousavi ,  Karen J. Smiley ,  Hang Xu ,  Frank Mueller

    IPC: H04L29/06 ,  G06N3/04

    Abstract: Apparatuses, methods, systems, and techniques for detecting and effecting countermeasures against cyber-attacks on networked electrical power system (NEPS) devices include a trusted cyber-attack detection (TCAD) component including pre-trained cyber-attack detection logic which receives a first input indicating a physical parameter of a NEPS device and a second input indicating a computational state of a computer system of the NEPS device, determines an attack metric in response to the plurality of inputs. The attack metric can indicate whether the NEPS device is in the process of being attacked or whether the NEPS device has been successfully attacked and has been compromised.

    SYSTEM AND METHOD FOR LOCATING FAULTS AND COMMUNICATING NETWORK OPERATIONAL STATUS TO A UTLITY CREW USING AN INTELLIGENT FUSE
    10.
    发明申请
    SYSTEM AND METHOD FOR LOCATING FAULTS AND COMMUNICATING NETWORK OPERATIONAL STATUS TO A UTLITY CREW USING AN INTELLIGENT FUSE 有权
    用于定位故障的系统和方法，并将网络运行状态与使用智能熔丝的UTLITY CREW进行通信

    公开(公告)号：US20160308345A1

    公开(公告)日：2016-10-20

    申请号：US15195628

    申请日：2016-06-28

    Applicant: ABB Schweiz AG

    Inventor： James D. Stoupis ,  Bernhard Deck ,  Mirrasoul Mousavi ,  Dmitry Ishchenko

    IPC: H02H3/04 ,  G01R31/08 ,  H01H85/20 ,  H01H85/46 ,  H02H1/00 ,  H02H7/26

    Abstract: An intelligent fuse provides the operational status of the power network upon which the fuse is installed to a mobile device of a remote user. A fuse electronic circuit embedded in the fuse holder of the fuse captures the characteristic values of the power network and transmits the data to the mobile device. The mobile device has an application installed thereon to calculate the distance to fault location from the recording fuse using the fuse electronic circuit-captured data. The fuse electronic circuit-captured data is further used to visualize the data collected at the measurement points of the electrical system upon which the fuse is installed.

    Abstract translation: 智能保险丝将保险丝安装到电力网络的操作状态提供给远程用户的移动设备。 保险丝电路内嵌在熔丝保险丝座的熔丝中捕获电力网络的特征值，并将数据传输到移动设备。 移动设备具有安装在其上的应用，以使用熔丝电子电路捕获的数据从记录熔丝计算与故障位置的距离。 保险丝电子电路捕获数据进一步用于可视化在安装有保险丝的电气系统的测量点收集的数据。

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