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44 条记录 (耗时 0.018 秒)

    Using the transfer switch of a hybrid circuit breaker as selector switch
    9.
    发明授权
    Using the transfer switch of a hybrid circuit breaker as selector switch 有权
    使用混合断路器的转换开关作为选择开关

    公开(公告)号：US09000623B2

    公开(公告)日：2015-04-07

    申请号：US14357310

    申请日：2011-11-11

    申请人： Bertil Berggren ,  Lars-Erik Juhlin

    发明人： Bertil Berggren ,  Lars-Erik Juhlin

    IPC分类号： H01H19/64 ,  H01H31/10 ,  H01H33/52 ,  H01H33/59 ,  H01H47/00 ,  H01H85/46 ,  H02B1/00 ,  H02H7/26 ,  H02J3/36

    CPC分类号： H02B1/00 ,  H02H7/268 ,  H02J3/36 ,  Y02E60/60 ,  Y10T307/747

    摘要： A high voltage direct current (HVDC) switchyard is provided. The switchyard is arranged for interconnecting three or more sections of an HVDC power network, such as transmission lines, converters, or any other type of HVDC equipment. The switchyard comprises at least one main circuit breaker and at least four transfer switches. The at least one main circuit breaker and the at least four transfer switches are arranged so as to enable to individually disconnect any one of the at least three sections of the HVDC power distribution network. In an embodiment of the invention, the transfer switches which usually are comprised in direct current (DC) hybrid circuit breakers are used as selector switches, thereby reducing the number of main breakers in the switchyard.

    摘要翻译： 提供高压直流（HVDC）开关场所。 开关站设置用于互连HVDC电力网络的三个或更多个部分，例如传输线，转换器或任何其他类型的HVDC设备。 开关机构包括至少一个主断路器和至少四个转换开关。 所述至少一个主断路器和所述至少四个转换开关被布置成能够独立地断开所述HVDC配电网络中的所述至少三个部分中的任何一个。 在本发明的一个实施例中，通常包括在直流（DC）混合断路器中的转换开关用作选择器开关，从而减少了开关站中的主断路器的数量。

    Power or voltage oscillation damping in a power transmission system
    10.
    发明授权
    Power or voltage oscillation damping in a power transmission system 失效
    电力传输系统中的功率或电压振荡阻尼

    公开(公告)号：US08710700B2

    公开(公告)日：2014-04-29

    申请号：US13367085

    申请日：2012-02-06

    申请人： Bertil Berggren ,  Rajat Majumder ,  Swakshar Ray ,  Balarko Chaudhuri ,  Nilanjan Ray Chaudhuri

    发明人： Bertil Berggren ,  Rajat Majumder ,  Swakshar Ray ,  Balarko Chaudhuri ,  Nilanjan Ray Chaudhuri

    IPC分类号： H02J3/24

    CPC分类号： H02J3/24 ,  Y02E60/728 ,  Y04S10/265

    摘要： A method, device and computer program product for providing improved control of power or voltage oscillation damping in a power transmission system. The device includes a magnitude obtaining element configured to obtain an instantaneous magnitude of a signal representing a deviating oscillation in at least one element of the power transmission system, a slope investigating element configured to determine the rate of change of the signal, and a first processing block including an integrating element configured to integrate the instantaneous magnitudes with an integrating factor that is based on the determined rate of change. The first processing block is further configured to form a phase compensation angle based on the integrated instantaneous magnitude for use in a damping control signal generating unit in order to provide power or voltage oscillation damping of the system.

    摘要翻译： 一种用于在电力传输系统中提供对功率或电压振荡阻尼的改进的控制的方法，装置和计算机程序产品。 该装置包括幅度获得元件，其被配置为获得表示电力传输系统的至少一个元件中的偏离振荡的信号的瞬时幅度，配置成确定信号变化率的斜率调查元件，以及第一处理 块包括集成元件，其被配置为将瞬时幅度与基于确定的变化率的积分因子进行积分。 第一处理块还被配置为基于用于阻尼控制信号生成单元的积分瞬时幅度形成相位补偿角，以便提供系统的功率或电压振荡阻尼。