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    Vector electricity meters and associated vector electricity metering methods
    2.
    发明公开
    Vector electricity meters and associated vector electricity metering methods 失效
    Vektorelektrizitätsmeterund -verfahren

    公开(公告)号：EP0777125A2

    公开(公告)日：1997-06-04

    申请号：EP96308666.5

    申请日：1996-11-29

    申请人： GENERAL ELECTRIC COMPANY

    发明人： Hoffman, Mark E. ,  Lavoie, Gregory Paul ,  Provost, Roland J. ,  Plis, Mark Joseph ,  Maehl, Thomas ,  Elmore, David Bean ,  Germer, Warren Ralph ,  Putcha, Sivarama Seshu ,  Mammen, Jeffrey W. ,  Staver, Daniel Arthur ,  Bullock, Donald Frank ,  Burt, Arthur Charles ,  Crittenden, Curtis Whitmore ,  Edge, Ellen D.

    IPC分类号： G01R21/133

    CPC分类号： G01R21/1331

    摘要： Line voltage and line current signals are sensed (110,120) on a power line having at least one conducting path (220 A-C). The sensed line voltages and line currents are converted (320) into a digital signal. A phase-to-neutral voltage signal and phase current signal are computed (330) from the digital signal to thereby define a phase of the power line. An interval of orthogonality is determined from the sensed voltage and current signals, coinciding with passage of an integral number of cycles of a fundamental frequency reference signal which is computed from the computed phase-to-neutral voltage signal. A vector metering quantity is computed for the determined interval of orthogonality from the computed phase-to-neutral voltage signal and the computed phase current signal. The vector metering quantities to be computed may be identified and computed based upon an associated detent. The vector metering quantity is also computed based on an identified circuit topology.

    摘要翻译： 在具有至少一个导电路径（220A-C）的电力线上感测线路电压和线路电流信号（110,120）。 感测到的线路电压和线路电流被转换（320）成数字信号。 从数字信号计算（330）相 - 中性电压信号和相电流信号，从而限定电力线的相位。 从感测的电压和电流信号确定正交性的间隔，与从计算出的相电压信号计算的基频信号的整数倍的周期相一致。 根据计算的相电压信号和计算出的相电流信号，计算确定的正交间隔的向量计量量。 可以基于相关联的制动器来识别和计算要计算的矢量计量量。 矢量测量量也基于识别的电路拓扑来计算。