摘要
电子式安装式电能表的核心计量原理有多种,随着近年来市场要求最低价格的选择,相对于可以用傅里叶变换展开的谐波电量,非线性电能量涵盖的范围更广泛,逐渐变成∑—Δ原理的A/D采样软件乘法器占据了绝对的数量;而在高端市场和复杂工况,采用有功电能计量技术时分割乘法器原理电能表展示出了技术优势。针对非线性电量是否会造成漏计电量以及如何选择正确的计量技术对非线性电量进行公平、公正、精确的计量等问题进行分析,并就这两类电能表在非线性现场工况以及实验室参比工况条件下的计量展开研究。
There are many kinds of core metering principle for electronic installation-type electric energy meter. Due to its lower price, nonlinear electric energy covers wider scale than harmonic energy expanded by Fourier- transform. Thus, Σ-Δ theory based A/D sampling soft＇ware multiplier covers absolute quantity, while in the high-end market and under complicated conditions, the energy meter based on aotve energy metering technology time division multiplier shows more advantages. This paper analyzes the problems such as whether the non-linear electricity will cause missed out electricity metering and how to choose correct measurement technology for fair and accurate measurement of the non-linear electricity. Besides, the two types of electric energy meter are studied under nonlinear field conditions and laboratory-referred operating conditons.
出处
《山西电力》
2016年第6期44-47,共4页
Shanxi Electric Power
关键词
非线性电量
模数转换器
有功电能计量技术时分割乘法器
nonlinear electric energy
analog-to-digital converter
actve energy metering technology time division multiplier
