电网谐波信号的FFT分析和数据处理

THE HARMONIC SIGNAL FFT ANALYSING AND DATA PROCESSING IN POWER NETWORKS

本文阐述电网谐波信号的分析方法,FFT原理和微机数据处理,设计了硬件和软件,经用多种信号实测,结果表明,其稳定性和精确度满足测量要求。

This paper presents an analying method of harmonic signal in power networks, the principle of FFT and microcomputer data processing. And we designed this hardware and software. By detecting various signals, its experimental nesults show this microcomputer detecting and analysing harmonic component in power networks has high stability and accuracy.