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    RELAY DEVICE AND CORRESPONDING METHOD
    1.
    发明申请
    RELAY DEVICE AND CORRESPONDING METHOD 有权
    继电器和相关方法

    公开(公告)号：US20080158750A1

    公开(公告)日：2008-07-03

    申请号：US11618175

    申请日：2006-12-29

    申请人： William Premerlani ,  Marcelo Valdes ,  Thomas Frederick Papallo ,  Radoslaw Narel ,  Gregory P. Lavoie

    发明人： William Premerlani ,  Marcelo Valdes ,  Thomas Frederick Papallo ,  Radoslaw Narel ,  Gregory P. Lavoie

    IPC分类号： H02H3/00 ,  G01R31/08

    CPC分类号： H02H7/30 ,  H02H3/081

    摘要： A method of operating a relay device, the method comprising the steps of: providing main circuit-breakers and a bus-tie-breaker connecting the main-circuit-breakers; defining a partial-differential-zone comprising a main circuit breaker and the bus-tie breaker; assigning a first value to the direction of the fault current flowing into the partial differential zone; -assigning a second value to the direction of the fault currents flowing out of the partial-differential-zone, wherein the first value is not equal to the second value; -comparing the values assigned to the fault currents; determining if the fault currents are flowing into the partial differential zone; and determining if at least two of the fault-currents is flowing in a different direction with respect to the partial-differential-zone wherein one of the fault currents is flowing into the partial-differential-zone and one of the fault currents is flowing out of the partial differential zone.

    摘要翻译： 一种操作中继装置的方法，所述方法包括以下步骤：提供主断路器和连接所述主断路器的总线断路器; 限定包括主断路器和母线断路器的部分差分区; 向流入所述偏差区的故障电流的方向分配第一值; - 将第二值分配给从所述部分差分区流出的故障电流的方向，其中所述第一值不等于所述第二值; - 比较分配给故障电流的值; 确定故障电流是否流入偏差区; 以及确定至少两个故障电流是否相对于其中一个故障电流流入部分差分区并且其中一个故障电流流出的部分差分区在不同的方向上流动 的偏差区。

    Methods and systems for measuring a rate of change of frequency
    5.
    发明授权
    Methods and systems for measuring a rate of change of frequency 有权
    用于测量频率变化率的方法和系统

    公开(公告)号：US07328114B2

    公开(公告)日：2008-02-05

    申请号：US11298964

    申请日：2005-12-09

    申请人： William Premerlani ,  Rui Zhou

    发明人： William Premerlani ,  Rui Zhou

    IPC分类号： G01R23/16

    CPC分类号： G01R29/18 ,  G01R23/00

    摘要： A method for measuring a rate of change of frequency includes estimating at least one phasor value, estimating a frequency based on the estimated at least one phasor value, compensating the estimated at least one phasor value based on the estimated frequency, calculating a frequency based on the compensated at least one phasor value, and calculating a rate of change of the calculated frequency based on the calculated frequency.

    摘要翻译： 用于测量频率变化率的方法包括估计至少一个相量值，基于估计的至少一个相量估计频率，基于估计的频率补偿估计的至少一个相量值，基于估计的频率计算频率 补偿的至少一个相量值，以及基于计算出的频率计算计算出的频率的变化率。

    Methods and systems for measuring a rate of change of requency
    7.
    发明申请
    Methods and systems for measuring a rate of change of requency 有权
    测量需求变化率的方法和系统

    公开(公告)号：US20070136013A1

    公开(公告)日：2007-06-14

    申请号：US11298964

    申请日：2005-12-09

    申请人： William Premerlani ,  Rui Zhou

    发明人： William Premerlani ,  Rui Zhou

    IPC分类号： G01R23/00

    CPC分类号： G01R29/18 ,  G01R23/00

    摘要： A method for measuring a rate of change of frequency includes estimating at least one phasor value, estimating a frequency based on the estimated at least one phasor value, compensating the estimated at least one phasor value based on the estimated frequency, calculating a frequency based on the compensated at least one phasor value, and calculating a rate of change of the calculated frequency based on the calculated frequency.

    摘要翻译： 用于测量频率变化率的方法包括估计至少一个相量值，基于估计的至少一个相量估计频率，基于估计的频率补偿估计的至少一个相量值，基于估计的频率计算频率 补偿的至少一个相量值，以及基于计算出的频率计算计算出的频率的变化率。

    Relay device and corresponding method
    9.
    发明授权
    Relay device and corresponding method 有权
    继电器及相应的方法

    公开(公告)号：US07599161B2

    公开(公告)日：2009-10-06

    申请号：US11618192

    申请日：2006-12-29

    申请人： William Premerlani ,  Marcelo Valdes ,  Thomas Frederick Papallo, Jr. ,  Gregory P. Lavoie ,  Radoslaw Narel

    发明人： William Premerlani ,  Marcelo Valdes ,  Thomas Frederick Papallo, Jr. ,  Gregory P. Lavoie ,  Radoslaw Narel

    IPC分类号： H02H7/00

    CPC分类号： H02H7/30 ,  H02H3/28 ,  H02H3/387

    摘要： A method of operating a relay device, in an electrical circuit comprising first and second main circuit breakers, and a bus tie circuit breaker connecting the first and second main circuit breakers, the method comprising computing a first positive sequence current phasor for the first main circuit breaker and a second positive sequence current phasor for the second main circuit breaker computing a first positive sequence voltage phasor for the first main circuit breaker and a second positive sequence voltage phasor for the second main circuit breaker; computing a correction of the first positive sequence voltage and second positive sequence voltage to a line-to-neutral phase angle reference if there is any rotation in a potential transformer connection; determining a fault has occurred when a magnitude of a current through at least one of the first main circuit breaker or the second main circuit breaker exceeds a predetermined threshold; determining a phase angle difference by comparing the phase angle of the positive sequence current phasor with the phase angle of the positive sequence voltage phasor for both the first main circuit breaker or the second main circuit breaker having the magnitude of current determined to have exceeded the predetermined level; and determining the fault is located upstream or downstream of the first main circuit breaker or the second main circuit breaker having the magnitude of current determined to have exceeded the predetermined level, if the phase angle difference is determined to be above a predetermined amount.

    摘要翻译： 一种在包括第一和第二主断路器的电路中的中继装置的操作方法和连接第一和第二主断路器的总线连接断路器，该方法包括：计算第一主电路的第一正序电流相量 断路器和用于第二主断路器的第二正序电流相量计算第一主断路器的第一正序电压相量和用于第二主断路器的第二正序电压相量; 如果在电压互感器连接中存在任何旋转，则将第一正序电压和第二正序电压的校正计算为线到中性相角参考; 当通过第一主断路器或第二主断路器中的至少一个的电流的大小超过预定阈值时，发生故障; 通过将正序电流相量的相位角与正序电压相量的相位角进行比较来确定相位角差，第一主断路器或具有确定超过预定值的电流大小的第二主断路器 水平; 并且如果相位角差被确定为高于预定量，则确定故障位于具有被确定为已经超过预定水平的电流大小的第一主断路器或第二主断路器的上游或下游。

    Relay device and corresponding method
    10.
    发明授权
    Relay device and corresponding method 有权
    继电器及相应的方法

    公开(公告)号：US07542256B2

    公开(公告)日：2009-06-02

    申请号：US11618175

    申请日：2006-12-29

    申请人： William Premerlani ,  Marcelo Valdes ,  Thomas Frederick Papallo, Jr. ,  Radoslaw Narel ,  Gregory P. Lavoie

    发明人： William Premerlani ,  Marcelo Valdes ,  Thomas Frederick Papallo, Jr. ,  Radoslaw Narel ,  Gregory P. Lavoie

    IPC分类号： H02H7/00

    CPC分类号： H02H7/30 ,  H02H3/081

    摘要： A method of operating a relay device, the method comprising the steps of: providing main circuit-breakers and a bus-tie-breaker connecting the main-circuit-breakers; defining a partial-differential-zone comprising a main circuit breaker and the bus-tie breaker; assigning a first value to the direction of the fault current flowing into the partial differential zone;—assigning a second value to the direction of the fault currents flowing out of the partial-differential-zone, wherein the first value is not equal to the second value;—comparing the values assigned to the fault currents; determining if the fault currents are flowing into the partial differential zone; and determining if at least two of the fault-currents is flowing in a different direction with respect to the partial-differential-zone wherein one of the fault currents is flowing into the partial-differential-zone and one of the fault currents is flowing out of the partial differential zone.

    摘要翻译： 一种操作中继装置的方法，所述方法包括以下步骤：提供主断路器和连接所述主断路器的总线断路器; 限定包括主断路器和母线断路器的部分差分区; 向流入所述部分差分区域的故障电流的方向分配第一值; - 将第二值分配到从所述部分差分区域流出的故障电流的方向，其中所述第一值不等于所述第二值 值; - 比较分配给故障电流的值; 确定故障电流是否流入偏差区; 以及确定至少两个故障电流是否相对于其中一个故障电流流入部分差分区并且其中一个故障电流流出的部分差分区在不同的方向上流动 的偏差区。