利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.014 秒)

    POWER LINE PARAMETER ADJUSTMENT AND FAULT LOCATION USING TRAVELING WAVES
    1.
    发明公开
    POWER LINE PARAMETER ADJUSTMENT AND FAULT LOCATION USING TRAVELING WAVES 审中-公开
    富兰克林德国民主主义人民共和国

    公开(公告)号：EP3047416A1

    公开(公告)日：2016-07-27

    申请号：EP14844348.4

    申请日：2014-09-16

    申请人： Schweitzer Engineering Laboratories, Inc.

    发明人： SCHWEITZER, Edmund O. III ,  MYNAM, Mangapathirao Venkata ,  GUZMAN-CASILLAS, Armando ,  SKENDZIC, Veselin ,  KASZTENNY, Bogdan Z. ,  WHITEHEAD, David E.

    IPC分类号： G06F19/00

    CPC分类号： G01R31/088 ,  G01R31/11

    摘要： Fault location using traveling waves in an electric power delivery system according to the embodiments herein uses line parameters that are adjusted using traveling wave reflections from known discontinuities in the electric power delivery system. The arrival times of a traveling wave and a reflection of the traveling wave from a known discontinuity may be used to adjust parameters of the electric power delivery system such as, for example, line length. The adjusted parameter can then be used to more accurately calculate the location of the fault using the traveling waves.

    摘要翻译： 根据本文实施例的在电力输送系统中使用行波的故障定位使用使用来自电力输送系统中的已知不连续性的行波反射来调整的线路参数。 可以使用行波的到达时间和来自已知不连续性的行波的反射来调整电力输送系统的参数，例如线路长度。 然后可以使用经调整的参数来更精确地计算使用行波的故障位置。

    TRANSMISSION LINE PROTECTION USING TRAVELING WAVES IN OPTICAL GROUND WIRE FIBER
    4.
    发明公开
    TRANSMISSION LINE PROTECTION USING TRAVELING WAVES IN OPTICAL GROUND WIRE FIBER 审中-公开
    利用光导纤维中的行波传输线路保护

    公开(公告)号：EP3256826A1

    公开(公告)日：2017-12-20

    申请号：EP16749984.7

    申请日：2016-02-12

    申请人： Schweitzer Engineering Laboratories, Inc.

    发明人： KASZTENNY, Bogdan Z. ,  TAYLOR, Douglas I.

    IPC分类号： G01K11/32 ,  G01B11/16 ,  G01R31/08

    CPC分类号： H04B10/032 ,  H02H7/265 ,  H04B10/0791

    摘要： Disclosed herein are systems for detecting a location of a fault on an electric power transmission line using a state-of-polarization traveling wave in an optical ground wire Various embodiments may also detect a traveling wave on a conductor of the transmission system. The arrival times of the state-of-polarization traveling wave and the electrical traveling wave may be compared. Using the difference in times and the known propagation velocities of the traveling waves, a distance to the fault may be calculated. Arrival time of the state-of-polarization traveling wave may be calculated using electrical signals from photodetectors in an optical channel with polarizing filters at different orientations or reference frames.

    FAULT DETECTION IN ELECTRIC POWER DELIVERY SYSTEMS USING UNDERREACH, DIRECTIONAL, AND TRAVELING WAVE ELEMENTS
    9.
    发明公开
    FAULT DETECTION IN ELECTRIC POWER DELIVERY SYSTEMS USING UNDERREACH, DIRECTIONAL, AND TRAVELING WAVE ELEMENTS 审中-公开
    使用无故障，方向和行波元件的电力输送系统的故障检测

    公开(公告)号：EP3194987A1

    公开(公告)日：2017-07-26

    申请号：EP15841966.3

    申请日：2015-09-16

    申请人： Schweitzer Engineering Laboratories, Inc.

    发明人： SCHWEITZER, Edmund O. III ,  MYNAM, Mangapathirao Venkata ,  GUZMAN-CASILLAS, Armando ,  SKENDZIC, Veselin ,  KASZTENNY, Bogdan Z. ,  LEE, Tony J. ,  WHITEHEAD, David E.

    IPC分类号： G01R19/25 ,  G06F19/24 ,  G01R31/08 ,  H02H3/42 ,  H02H3/50

    CPC分类号： H02H7/20 ,  G01R31/08 ,  G01R31/085 ,  G01R31/088 ,  G01R31/2836 ,  G01R31/40 ,  G05B9/02 ,  H02H3/042 ,  H02H7/265

    摘要： The present disclosure pertains to systems and methods for detecting faults in an electric power delivery system. In one embodiment, a system may include a data acquisition subsystem configured to receive a plurality of representations of electrical conditions. The system may also include a traveling wave differential subsystem configured to determine an operating quantity based on the plurality of representations of electrical conditions. The traveling wave differential subsystem may also determine a restraint quantity based on the plurality of representations of electrical conditions. The traveling wave differential subsystem may detect a traveling wave generated by the fault based on the plurality of representations. A fault detector subsystem may be configured to declare a fault based on a comparison of the operating quantity and the restraint quantity. A protective action subsystem may implement a protective action based on the declaration of the fault.

    摘要翻译： 本公开涉及用于检测电力输送系统中的故障的系统和方法。 在一个实施例中，系统可以包括数据采集子系统，该数据采集子系统被配置为接收电气状况的多个表示。 该系统还可以包括行波微分子系统，其被配置为基于电条件的多个表示来确定操作量。 行波差分子系统还可以基于电条件的多个表示来确定约束量。 行波差分子系统可以基于多个表示来检测由故障产生的行波。 故障检测器子系统可以被配置为基于操作量和约束量的比较来声明故障。 保护措施子系统可以基于故障声明实施保护措施。