ZHANG Yang, LIU Yan-li. Series fault arc identification method based on BP neural network optimized by PSO[J]. 2016, 35(7): 22-25. DOI: 10.13873/J.1000-9787(2016)07-0022-04.
PSO优化BP神经网络的串联故障电弧识别方法
摘要
运用db5小波对故障电弧信号进行4层分解
提取故障频段能量谱作为特征量
建立BP神经网络。用粒子群优化(PSO)算法优化BP神经网络
从而快速准确地对故障电弧特征量进行拟合
用训练后的神经网络对故障电弧进行预测
达到了较好的预测识别效果
验证了该串联型故障电弧识别方法的有效性。
Abstract
By means of db5 wavelet
fault arc signal is decomposed into four layers
energy spectrum fault frequency band is extracted as characteristic quantity
establish BP neural network. Optimize BP neural network by particle swarm optimization( PSO) algorithm
so as to fastly and accurately fit fault arc characteristic quantity
fault arc is predicted by trained neural network
achieve good recognition effect
verify effectiveness of fault arc recognition method.