System for electric distribution system protection and control and method of assembling the same
    1.
    发明授权
    System for electric distribution system protection and control and method of assembling the same 有权
    配电系统保护和控制系统及其组装方法

    公开(公告)号:US08908343B2

    公开(公告)日:2014-12-09

    申请号:US13285886

    申请日:2011-10-31

    CPC分类号: H02H3/305

    摘要: An electric distribution system includes at least one feeder and a protection and control system. The feeder includes at least one segment including a first end and an opposing second end. The protection and control system includes a protective device and an electric current measuring device coupled to the segment proximate each end. The system further includes at least one processor coupled in communication with the electric current measuring devices. The at least one processor is programmed to determine a difference between a synchronized first electric current measured proximate the first end and a synchronized second electric current measured proximate the opposing second end and determine a switching condition of the protective devices as a function of the difference between the synchronized first and second electric currents.

    摘要翻译: 配电系统包括至少一个进料器和保护和控制系统。 馈送器包括至少一个包括第一端和相对的第二端的段。 保护和控制系统包括一个保护装置和一个电流测量装置,该装置与靠近每一端的部分相连。 该系统还包括与电流测量装置通信的至少一个处理器。 所述至少一个处理器被编程以确定在第一端附近测量的同步的第一电流与在相对的第二端附近测量的同步的第二电流之间的差异,并且确定保护装置的开关状态作为 同步的第一和第二电流。

    SYSTEM FOR ELECTRIC DISTRIBUTION SYSTEM PROTECTION AND CONTROL AND METHOD OF ASSEMBLING THE SAME
    2.
    发明申请
    SYSTEM FOR ELECTRIC DISTRIBUTION SYSTEM PROTECTION AND CONTROL AND METHOD OF ASSEMBLING THE SAME 有权
    用于电力分配系统保护和控制的系统及其组装方法

    公开(公告)号:US20130107407A1

    公开(公告)日:2013-05-02

    申请号:US13285886

    申请日:2011-10-31

    IPC分类号: H02H3/00

    CPC分类号: H02H3/305

    摘要: An electric distribution system includes at least one feeder and a protection and control system. The feeder includes at least one segment including a first end and an opposing second end. The protection and control system includes a protective device and an electric current measuring device coupled to the segment proximate each end. The system further includes at least one processor coupled in communication with the electric current measuring devices. The at least one processor is programmed to determine a difference between a synchronized first electric current measured proximate the first end and a synchronized second electric current measured proximate the opposing second end and determine a switching condition of the protective devices as a function of the difference between the synchronized first and second electric currents.

    摘要翻译: 配电系统包括至少一个进料器和保护和控制系统。 馈送器包括至少一个包括第一端和相对的第二端的段。 保护和控制系统包括一个保护装置和一个电流测量装置,该装置与靠近每一端的部分相连。 该系统还包括与电流测量装置通信的至少一个处理器。 所述至少一个处理器被编程以确定在第一端附近测量的同步的第一电流与在相对的第二端附近测量的同步的第二电流之间的差异,并且确定保护装置的开关状态作为 同步的第一和第二电流。

    ELECTRIC DISTRIBUTION SYSTEM PROTECTION
    3.
    发明申请
    ELECTRIC DISTRIBUTION SYSTEM PROTECTION 有权
    电力分配系统保护

    公开(公告)号:US20130138366A1

    公开(公告)日:2013-05-30

    申请号:US13307740

    申请日:2011-11-30

    IPC分类号: G01R19/00 G01R31/00

    摘要: A system for distributing electrical current to a plurality of loads includes a first sensor coupled to an input of a protection zone for measuring a first current entering the protection zone, wherein the protection zone includes at least a portion of an electrical distribution feeder. The system also includes a second sensor coupled to an output of the protection zone for measuring a second current exiting the protection zone, and a processor coupled to the first sensor and to the second sensor. The processor is programmed to receive measurements representative of the first current and the second current, and calculate a reactive current differential of the protection zone based on the first current and the second current. The processor is also programmed to compare the reactive current differential with a fault threshold, and generate an error notification if the reactive current differential is greater than the fault threshold.

    摘要翻译: 用于将电流分配到多个负载的系统包括耦合到保护区的输入的第一传感器,用于测量进入保护区的第一电流,其中保护区包括配电馈线的至少一部分。 该系统还包括耦合到保护区的输出的第二传感器,用于测量离开保护区的第二电流,以及耦合到第一传感器和第二传感器的处理器。 处理器被编程为接收表示第一电流和第二电流的测量值,并且基于第一电流和第二电流来计算保护区的无功电流差。 处理器也被编程为将无功电流差异与故障阈值进行比较,如果无功电流差大于故障阈值,则产生错误通知。

    Electric distribution system protection
    4.
    发明授权
    Electric distribution system protection 有权
    配电系统保护

    公开(公告)号:US09178350B2

    公开(公告)日:2015-11-03

    申请号:US13307740

    申请日:2011-11-30

    摘要: A system for distributing electrical current to a plurality of loads includes a first sensor coupled to an input of a protection zone for measuring a first current entering the protection zone, wherein the protection zone includes at least a portion of an electrical distribution feeder. The system also includes a second sensor coupled to an output of the protection zone for measuring a second current exiting the protection zone, and a processor coupled to the first sensor and to the second sensor. The processor is programmed to receive measurements representative of the first current and the second current, and calculate a reactive current differential of the protection zone based on the first current and the second current. The processor is also programmed to compare the reactive current differential with a fault threshold, and generate an error notification if the reactive current differential is greater than the fault threshold.

    摘要翻译: 用于将电流分配到多个负载的系统包括耦合到保护区的输入的第一传感器,用于测量进入保护区的第一电流,其中保护区包括配电馈线的至少一部分。 该系统还包括耦合到保护区的输出的第二传感器,用于测量离开保护区的第二电流,以及耦合到第一传感器和第二传感器的处理器。 处理器被编程为接收表示第一电流和第二电流的测量值,并且基于第一电流和第二电流来计算保护区的无功电流差。 处理器也被编程为将无功电流差异与故障阈值进行比较,如果无功电流差大于故障阈值,则产生错误通知。

    Power system stabilization
    5.
    发明授权
    Power system stabilization 有权
    电力系统稳定

    公开(公告)号:US09043040B2

    公开(公告)日:2015-05-26

    申请号:US13362235

    申请日:2012-01-31

    IPC分类号: G05D11/00 H02J3/24

    CPC分类号: H02J3/24

    摘要: A method of damping power system oscillations include obtaining a time synchronized damping control signal from a remote location and determining a communication time delay in receiving the time synchronized damping control signal from the remote location. The time synchronized damping control signal is then modified based on a phase compensation factor and an amplitude compensation factor determined from the time delay. Finally, a damping signal is generated based on the modified time synchronized damping control signal.

    摘要翻译: 一种阻尼电力系统振荡的方法包括从远程位置获得时间同步阻尼控制信号,并确定从远程位置接收时间同步阻尼控制信号的通信时间延迟。 然后,基于从时间延迟确定的相位补偿因子和幅度补偿因子来修改时间同步衰减控制信号。 最后,基于改进的时间同步阻尼控制信号产生阻尼信号。

    POWER SYSTEM STABILIZATION
    6.
    发明申请
    POWER SYSTEM STABILIZATION 有权
    电力系统稳定

    公开(公告)号:US20130099582A1

    公开(公告)日:2013-04-25

    申请号:US13278824

    申请日:2011-10-21

    IPC分类号: H02J3/24

    CPC分类号: H02J3/24

    摘要: A method of damping power system oscillations includes obtaining an AC measurement signal from a power system location and determining oscillation frequency values in the AC measurement signal. A plurality of single signal components are extracted from the AC measurement signal by subtracting a plurality of processed measurement signals from the AC measurement signal and a damping signal is generated based on the plurality of single signal components. Each of the plurality of processed measurement signals are generated by time delaying the AC measurement signal with a time delay associated with each of the oscillation frequency values other than the oscillation frequency value of the single signal component to be extracted.

    摘要翻译: 一种阻尼电力系统振荡的方法包括从电力系统位置获得AC测量信号并确定AC测量信号中的振荡频率值。 通过从AC测量信号中减去多个处理的测量信号,从AC测量信号中提取多个单个信号分量,并且基于多个单个信号分量产生阻尼信号。 多个处理的测量信号中的每一个是通过与除了要提取的单个信号分量的振荡频率值之外的每个振荡频率值相关联的时间延迟来延迟AC测量信号而产生的。

    Power system stabilization
    7.
    发明授权
    Power system stabilization 有权
    电力系统稳定

    公开(公告)号:US09006933B2

    公开(公告)日:2015-04-14

    申请号:US13278824

    申请日:2011-10-21

    CPC分类号: H02J3/24

    摘要: A method of damping power system oscillations includes obtaining an AC measurement signal from a power system location and determining oscillation frequency values in the AC measurement signal. A plurality of single signal components are extracted from the AC measurement signal by subtracting a plurality of processed measurement signals from the AC measurement signal and a damping signal is generated based on the plurality of single signal components. Each of the plurality of processed measurement signals are generated by time delaying the AC measurement signal with a time delay associated with each of the oscillation frequency values other than the oscillation frequency value of the single signal component to be extracted.

    摘要翻译: 一种阻尼电力系统振荡的方法包括从电力系统位置获得AC测量信号并确定AC测量信号中的振荡频率值。 通过从AC测量信号中减去多个处理的测量信号,从AC测量信号中提取多个单个信号分量,并且基于多个单个信号分量产生阻尼信号。 多个处理的测量信号中的每一个是通过与除了要提取的单个信号分量的振荡频率值之外的每个振荡频率值相关联的时间延迟来延迟AC测量信号而产生的。

    POWER SYSTEM STABILIZATION
    8.
    发明申请
    POWER SYSTEM STABILIZATION 有权
    电力系统稳定

    公开(公告)号:US20130197705A1

    公开(公告)日:2013-08-01

    申请号:US13362235

    申请日:2012-01-31

    IPC分类号: G05F5/00

    CPC分类号: H02J3/24

    摘要: A method of damping power system oscillations include obtaining a time synchronized damping control signal from a remote location and determining a communication time delay in receiving the time synchronized damping control signal from the remote location. The time synchronized damping control signal is then modified based on a phase compensation factor and an amplitude compensation factor determined from the time delay. Finally, a damping signal is generated based on the modified time synchronized damping control signal.

    摘要翻译: 一种阻尼电力系统振荡的方法包括从远程位置获得时间同步阻尼控制信号,并确定从远程位置接收时间同步阻尼控制信号的通信时间延迟。 然后,基于从时间延迟确定的相位补偿因子和幅度补偿因子来修改时间同步衰减控制信号。 最后,基于改进的时间同步阻尼控制信号产生阻尼信号。

    PHASE IDENTIFICATION SYSTEM AND METHOD
    10.
    发明申请
    PHASE IDENTIFICATION SYSTEM AND METHOD 失效
    相位识别系统和方法

    公开(公告)号:US20110130991A1

    公开(公告)日:2011-06-02

    申请号:US12629128

    申请日:2009-12-02

    IPC分类号: G06F19/00

    CPC分类号: G01R19/2506 G01R19/2513

    摘要: A method to identify phase is presented. The method includes obtaining electrical parameters at a node and a substation of an electrical grid, processing the electrical parameters of the node and the substation into processed electrical parameters comprising at least one of a voltage harmonic amplitude, a current harmonic amplitude, a geometric harmonic modulated signal, and a noise pattern. The method further includes comparing the processed electrical parameters from the node and the substation and identifying phase information of the node with respect to the substation.

    摘要翻译: 提出了一种识别相位的方法。 该方法包括在电网的节点和变电站处获得电参数,将节点和变电站的电参数处理成经处理的电参数,该电参数包括电压谐波幅度,电流谐波幅度,几何谐波调制 信号和噪声模式。 该方法还包括比较来自节点和变电站的已处理电参数,并且相对于变电站识别节点的相位信息。