谐波对电能计量影响的分析及对策研究

Analysis and Countermeasure Research of the Influence of Harmonic on Electric Power Measurement

本文介绍了谐波产生的原因及其对感应式电能表和电子式电能表的影响 ,从感应式电能表和电子式电能表频率响应曲线入手 ,分析了由于谐波的存在而引起的电能计量仪表误差的变化情况 。

The generation reason of harmonic and the influence of the input waveform distortions caused by harmon ics on the metering error of induction energy meter and electronic energy meter are analyzed. Some methods areproposed to improve the measurement precision.