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    Methods and apparatus for defining meter data calculations in an electronic electricity meter
    4.
    发明授权
    Methods and apparatus for defining meter data calculations in an electronic electricity meter 有权
    用于在电子电表中定义仪表数据计算的方法和装置

    公开(公告)号：US06564159B1

    公开(公告)日：2003-05-13

    申请号：US09606270

    申请日：2000-06-29

    申请人： Gregory P. Lavoie ,  Robert E. Lee, Jr. ,  David D. Elmore ,  Maurice J. Ouellette

    发明人： Gregory P. Lavoie ,  Robert E. Lee, Jr. ,  David D. Elmore ,  Maurice J. Ouellette

    IPC分类号： G01R2100

    CPC分类号： G01R22/00 ,  G01R21/133

    摘要： The present invention, in one embodiment, is a method for defining meter data calculations in an electronic electric meter. The method includes steps of: storing a set of predefined data calculation instructions in a non-volatile memory of the meter; storing a first set of vectors in a memory of the meter, the vectors pointing to data calculations of the set of predefined data calculation instructions; metering a plurality of electrical quantities of a power source; and controlling calculations performed on the metered electrical quantities in accordance with the data calculation instructions pointed to by the first stored set of vectors.

    摘要翻译： 本发明在一个实施例中是用于在电子电表中定义仪表数据计算的方法。 该方法包括以下步骤：将一组预定义的数据计算指令存储在仪表的非易失性存储器中; 将第一组矢量存储在所述仪表的存储器中，所述矢量指向所述一组预定义数据计算指令的数据计算; 计量多个电量的电源; 以及根据由第一组存储的矢量指向的数据计算指令来控制对计量的电量执行的计算。

    Wide range single-phase/polyphase switching power supply
    5.
    发明授权
    Wide range single-phase/polyphase switching power supply 失效
    宽范围单相/多相开关电源

    公开(公告)号：US5668705A

    公开(公告)日：1997-09-16

    申请号：US563408

    申请日：1995-11-30

    申请人： Richard A. Balch ,  Raymond B. Ridley ,  David D. Elmore ,  Warren R. Germer

    发明人： Richard A. Balch ,  Raymond B. Ridley ,  David D. Elmore ,  Warren R. Germer

    IPC分类号： H02M3/335 ,  H02M7/217

    CPC分类号： H02M7/2176 ,  H02M3/33569 ,  H02M2001/007

    摘要： A wide range single-phase/polyphase switching power supply is presented. The power supply comprises first and second full wave bridge circuits. The rectified outputs of the bridge circuits are connected to a preregulator circuit, i.e., a FET circuit, where the primary input voltage from bridge circuits is limited. The output of the preregulator circuit is presented to a filter circuit. A current mode controller circuit operates at a fixed frequency with a variable duty cycle. An output of the current mode controller circuit drives the gate of a switching FET, at the fixed frequency and variable duty cycle. The aforementioned filtered voltage signal and the drain of the switching FET are connected across a first winding on the primary side of a flyback transformer. A second winding on the primary side of the flyback transformer is connected across Vcc, the supply voltage of the current mode controller circuit. The winding on the secondary side of the flyback transformer is connected to a voltage and filter circuit. Feedback is provided by an opto-isolator from the output voltage back to the compensation input of the current mode controller circuit. A voltage reference V.sub.REF is used in the feedback by an error correction amplifier to provide the feedback signal. The power supply of the present invention is particularly well suited for use with electronic electricity meters as such allows a common voltage reference for the power supply and the meter to be used. In a preferred embodiment, the second full wave bridge circuit is carried on a separate circuit board. The attachment of the second bridge circuit board on the main power supply circuit board converts the power supply from a single phase power supply to a polyphase power supply.

    摘要翻译： 提出了广泛的单相/多相开关电源。 电源包括第一和第二全波桥电路。 桥式电路的整流输出连接到预调节器电路，即FET电路，其中来自桥接电路的主要输入电压受到限制。 预调节器电路的输出呈现给滤波电路。 电流模式控制器电路以可变占空比在固定频率下工作。 电流模式控制器电路的输出以固定频率和可变占空比驱动开关FET的栅极。 上述滤波电压信号和开关FET的漏极跨越回扫变压器初级侧的第一绕组连接。 回扫变压器的初级侧的第二绕组跨过电流模式控制器电路的电压Vcc连接。 回扫变压器次级侧的绕组连接到电压和滤波电路。 反馈由光隔离器从输出电压提供回电流模式控制器电路的补偿输入。 在反馈中使用电压基准VREF由纠错放大器提供反馈信号。 本发明的电源特别适用于电子电表，因此允许使用用于电源和仪表的公共参考电压。 在优选实施例中，第二全波桥电路承载在单独的电路板上。 主电源电路板上的第二桥接电路板的连接将来自单相电源的电源转换为多相电源。

    Electronic electricity meter configured to correct for transformer inaccuracies
    6.
    发明授权
    Electronic electricity meter configured to correct for transformer inaccuracies 有权
    电子电表配置为纠正变压器不准确

    公开(公告)号：US06636028B2

    公开(公告)日：2003-10-21

    申请号：US09681764

    申请日：2001-06-01

    申请人： Gregory P. Lavoie ,  David D. Elmore ,  Larry A. Schmidt ,  Robert Edward Lee, Jr.

    发明人： Gregory P. Lavoie ,  David D. Elmore ,  Larry A. Schmidt ,  Robert Edward Lee, Jr.

    IPC分类号： G01R1132

    CPC分类号： G01R21/133

    摘要： An electronic electricity meter includes voltage sensors configured to generate measurements of voltage at voltage elements, current sensors configured to generate measurements of current through current elements, a microcomputer coupled to the current and voltage sensors and configured to control operation of the meter, and a memory coupled to the microcomputer including calibration constants to compensate for instrument transformer ratio and phase angle errors. The microcomputer is configured to use the calibration constants, when so instructed, to correct for measurement errors that occur based upon instrument transformer ratios and phase angles and to correct metering quantities calculated by the microcomputer.

    摘要翻译： 电子电表包括电压传感器，其被配置为产生电压元件的电压测量值，电流传感器被配置为产生通过电流元件的电流的测量值;耦合到电流和电压传感器的微型计算机，并且被配置为控制仪表的操作;以及存储器 耦合到微计算机，包括校准常数，以补偿仪器变压器比和相位角误差。 微型计算机被配置为当如此指示时使用校准常数来校正基于仪器变压器比和相位角发生的测量误差，并且校正由微计算机计算的计量量。

    Electronic electricity meter configurable to operate in a plurality of meter forms and ratings
    7.
    发明授权
    Electronic electricity meter configurable to operate in a plurality of meter forms and ratings 失效
    电子电表可配置为以多种仪表形式和额定值工作

    公开(公告)号：US06611772B1

    公开(公告)日：2003-08-26

    申请号：US08857322

    申请日：1997-05-16

    申请人： Gregory P. Lavoie ,  David D. Elmore ,  Larry A. Schmidt ,  Donald F. Bullock ,  Leslie Rosenau

    发明人： Gregory P. Lavoie ,  David D. Elmore ,  Larry A. Schmidt ,  Donald F. Bullock ,  Leslie Rosenau

    IPC分类号： G06F1900

    CPC分类号： G01R21/133

    摘要： An electricity meter which, in one embodiment, includes a digital signal processor configurable for generating energy measurements for a plurality of meter form types and connections is described. In the one embodiment, the meter includes voltage and current sensor for generating signals representative of current and voltage at a load, and the digital signal processor (DSP) is coupled to the voltage and current sensors. The DSP includes a memory, and a plurality of selectable instruction sets corresponding to respective meter form types are stored in the DSP memory. The form types includes meter ANSI form 9 and meter ANSI form 16 type forms, and the instruction sets include processing steps to be executed to determine line voltages and line currents for respective meter form types. The meter also includes a microcomputer coupled to the DSP for receiving data generated by the DSP. The microcomputer is operable transmit a selection command to the DSP to control selection of one of the instruction sets stored in the DSP memory. An optical port may be electrically coupled to the microcomputer, and the microcomputer is configured to receive a control command from the optical port. The microcomputer uses the control command to generate the selection command.

    摘要翻译： 在一个实施例中，电表包括可配置用于为多个仪表形式类型和连接产生能量测量的数字信号处理器。 在一个实施例中，仪表包括电压和电流传感器，用于产生表示负载时的电流和电压的信号，并且数字信号处理器（DSP）耦合到电压和电流传感器。 DSP包括存储器，并且与DSP相关的多个可选指令集存储在DSP存储器中。 表格类型包括仪表ANSI表格9和仪表ANSI表格16型表格，指令集包括要执行的处理步骤，以确定相应表格类型的线路电压和线路电流。 该仪表还包括耦合到DSP的微型计算机，用于接收由DSP产生的数据。 微型计算机可操作地向DSP发送选择命令以控制对存储在DSP存储器中的指令集之一的选择。 光端口可以电耦合到微型计算机，微型计算机被配置为从光端口接收控制命令。 微机使用控制命令生成选择命令。

    Vector electricity meters and associated vector electricity metering methods
    8.
    发明授权
    Vector electricity meters and associated vector electricity metering methods 失效
    矢量电表和相关矢量电计量方法

    公开(公告)号：US5854995A

    公开(公告)日：1998-12-29

    申请号：US872033

    申请日：1997-06-10

    申请人： Mark J. Plis ,  David D. Elmore

    发明人： Mark J. Plis ,  David D. Elmore

    IPC分类号： G01R21/133 ,  G01R25/00

    CPC分类号： G01R21/1331

    摘要： Line voltage and line current signals are sensed on a power line having at least one conducting path. The sensed line voltages and line currents are converted into a digital signal. A phase-to-neutral voltage signal and phase current signal are computed 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的电力线上检测线电压和线电流信号。 感测到的线路电压和线路电流被转换为数字信号。 从数字信号计算出相电压中性点电压信号和相电流信号，从而定义电力线的相位。 从感测的电压和电流信号确定正交性的间隔，其与从计算出的相电压信号计算的基频信号的整数倍的循环相一致。 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。 也可以基于所识别的电路拓扑来计算矢量测量量。

    Apparatus and method for measuring electrical energy and quadergy and for performing line frequency compensation
    9.
    发明授权
    Apparatus and method for measuring electrical energy and quadergy and for performing line frequency compensation 失效
    用于测量电能和能量以及进行线路频率补偿的装置和方法

    公开(公告)号：US5336991A

    公开(公告)日：1994-08-09

    申请号：US49039

    申请日：1993-04-16

    申请人： Kenneth W. Atherton ,  Gerard Chevalier ,  Jokin Galletero ,  Donald F. Bullock ,  Curtis W. Crittenden ,  David D. Elmore ,  Warren R. Germer

    发明人： Kenneth W. Atherton ,  Gerard Chevalier ,  Jokin Galletero ,  Donald F. Bullock ,  Curtis W. Crittenden ,  David D. Elmore ,  Warren R. Germer

    IPC分类号： G01R21/133 ,  G01K1/04

    CPC分类号： G01R21/1331

    摘要： An apparatus and method for measuring electrical energy and quadergy and for performing line frequency compensation includes a compensation integrated circuit for adjusting the determined reactive load quadergy, based on variations between the actual line frequency and the rated line frequency of the meter. Reactive load quadergy is determined by phase-shifting the line voltage by a fixed time interval, based on the rated line frequency of the meter. The determined reactive load quadergy is adjusted to compensate for variations in line frequency. Because the determined reactive load quadergy is output by an electric meter as a continuous pulse train, adjustment to the determined reactive load quadergy is performed by adding or subtracting state changes from the pulse train and then registering the adjusted reactive load quadergy.

    摘要翻译： 用于测量电能和能量以及用于执行线路频率补偿的装置和方法包括用于根据实际线路频率和仪表的额定线路频率之间的变化来调整所确定的无功负载能量的补偿集成电路。 无功负载能力通过基于仪表的额定线路频率将线路电压相移固定的时间间隔来确定。 调整确定的无功负载能力以补偿线路频率的变化。 由于所确定的无功负载能量由电表作为连续脉冲串输出，因此通过从脉冲串中增加或减去状态变化然后记录调整的无功负载能量来执行对确定的无功负载能量的调整。

    Temperature compensation for an electronic electricity meter
    10.
    发明授权
    Temperature compensation for an electronic electricity meter 失效
    电子电表的温度补偿

    公开(公告)号：US06559631B1

    公开(公告)日：2003-05-06

    申请号：US09058543

    申请日：1998-04-10

    申请人： Richard A. Balch ,  David D. Elmore

    发明人： Richard A. Balch ,  David D. Elmore

    IPC分类号： G01R2106

    CPC分类号： G01R21/06 ,  G01R21/14

    摘要： An electricity meter which, in one embodiment, includes a temperature sensing unit for determining a signal representative of the temperature within the meter is described. In the one embodiment, the meter includes a current sensor, a voltage sensor and a processing unit. The current sensor generates an signal representative of a line current and the voltage sensor generates a signal representative of a line voltage. The current and voltage sensor and temperature sensing unit outputs are coupled to the processing unit. The processing unit includes an analog to digital (A/D) converter, a digital signal processor (DSP) and a microcomputer. The digital outputs of the A/D converter are connected to the DSP. The outputs of the DSP are connected to the microcomputer. Temperature characteristics of the meter are stored within the DSP. In operation, the output signals from the current sensor and the voltage sensor are sampled by the A/D converter to generate digital output signals representative of the line current and the line voltage. The output of the sensing unit is sampled by the A/D converter to generate a digital output signal representative of the temperature within the meter. The A/D converter digital output signals are transmitted to the DSP. The DSP determines if the output signal representative of the temperature within the meter is within a valid range. If the temperature signal is within the valid range, the DSP adjusts the line current and line voltage by the temperature characteristics of the meter based on the temperature representative signal. An adjusted energy consumption value is then determined by the DSP using the adjusted line current and the adjusted line voltage.

    摘要翻译： 在一个实施例中，电表包括用于确定表示仪表内的温度的信号的温度感测单元。 在一个实施例中，仪表包括电流传感器，电压传感器和处理单元。 电流传感器产生表示线路电流的信号，并且电压传感器产生表示线路电压的信号。 电流和电压传感器和温度感测单元输出耦合到处理单元。 处理单元包括模数（A / D）转换器，数字信号处理器（DSP）和微计算机。 A / D转换器的数字输出端连接到DSP。 DSP的输出端连接到微型计算机。 仪表的温度特性存储在DSP内。 在运行中，来自电流传感器和电压传感器的输出信号由A / D转换器进行采样，以生成表示线路电流和线路电压的数字输出信号。 感测单元的输出由A / D转换器采样，以产生代表仪表内温度的数字输出信号。 A / D转换器的数字输出信号传输到DSP。 DSP确定表示仪表内温度的输出信号是否在有效范围内。 如果温度信号在有效范围内，DSP将根据温度代表信号，根据仪表的温度特性调整线路电流和线路电压。 然后由DSP使用调整后的线路电流和调整后的线路电压来确定调整后的能量消耗值。