基于ADE7169ASTZF16的光电式高压电能表设计

从系统设计角度,介绍了电能计量集成电路芯片ADE7169ASTZF16的功能.同时,详细地分析了该芯片实现高精度数据采样、高准确度电能计量、方便高效系统控制等功能的具体过程;通过分析指出,该芯片利用过采样和积分滤波实现高分辨率采样,利用RC低通滤波器抗频谱混叠,利用内置DSP实现高准确度电能计量,利用内置8052内核实现方便高效系统控制.并且得出结论,将该芯片与光电式互感器技术相结合,可以有效克服光电式高压电能表设计过程中遇到的技术难点,有利于光电式高压电能表的实用化.

Design of optoelectronic kilowatt-hour meter of high voltage based on ADE7169ASTZF16

From the viewpoint of system design,the function of ADE7169ASTZF16,an energy metering IC,is introduced;and what's more,this paper particularly analyzes how ADE7169ASTZF16 achieves the aims of high-precision simultaneous data acquisition,high-precision energy metering and system control which is convenient and high-efficiency.ADE7169ASTZF16 makes use of oversampling and analog modulator to achieve high resolution,analog low-pass RC filter to prevent aliasing,fixed function DSP to achieve high-precision energy metering,and 8052 MCU core to achieve convenient and high-efficiency system control.Finally,it gives the conclusion that the combination of ADE7169ASTZF16 and optoelectronic current transformer can on the one hand conquer the technology difficulties which are met in the design of kilowatt-hour meter in high-voltage,and on the other hand benefit its practical use.