电测与仪表Issue(12)：122-128,7.
基于S变换和规则基的复合电能质量扰动识别
Multiple power quality disturbances recognition using S-transform and rule based classification technique
陈华丰 1杨志刚 2曾涛2
作者信息
- 1. 山东电力集团公司临沂供电公司，山东临沂276000
- 2. 国网浙江余姚市供电公司，浙江余姚315400
- 折叠
摘要
Abstract
A new approach to recognize multiple power quality disturbances is proposed.In order to avoid characteris-tics aliasing or failures because of interferences between the single disturbances, six features in power quality disturb-ance signals are extracted using Fast Fourier Transform ( FFT) combined with dynamic measure method and five kinds of features in power quality disturbance signals are extracted based on S-transform.Disturbance signals are character-ized by these features from the baseband, intermediate frequency, high-frequency, standard deviation of the funda-mental frequency and extreme point symmetry.Then a classifier is designed with eight rules in the form of “IF-THEN”, finally the extracted features were input into the classifier for disturbances recognition.Simulation results show that this method can effectively recognize 26 kinds of power quality disturbances under certain signal to noise ra-tio including eight single disturbances and eighteen double disturbances.关键词
电能质量/扰动识别/动态测度法/S变换/规则基Key words
power quality/disturbance identification/S-transform/dynamic measure method/rule-based分类
信息技术与安全科学引用本文复制引用
陈华丰,杨志刚,曾涛..基于S变换和规则基的复合电能质量扰动识别[J].电测与仪表,2015,(12):122-128,7.
