阈值曲线法在PD在线监测中的应用

Application of a New Digital Filtering Method in PD On--line Measurement

在局部放电在线监测中抑制载波通讯干扰研究中，引入竞争学习网络的“自激励，邻抑制”作用，提出了一种基于ＦＦＴ和ＡＮＮ的新数字滤波方法。仿真实验和现场数据的分析结果表明：该方法快速有效，能很好地满足局部放电在线监测的需要。

The on center off surround effect of competitionnetwork is introduced for the purpose of eliminating communication interference in partial discharge on-line measurement. A new digital filtering method which is based on FFTand ANN are proposed.Results from both simulation experiments and analysis on site signals show that the proposed method is a quick, and effective one which can satisfythe demand of PD on-line measurement.