测控技术2017，Vol.36Issue(9)：11-17,7.
基于GST的煤矿电能质量扰动特性分析
Characteristics Analysis of Power Quality Disturbance for Coal Mine Based on GST
摘要
Abstract
According to the present situation of the development of modernization coal mine,the causes and characteristics of the main four types of transient disturbance signals in coal mine are described.Combined with the superiorities of GST in analyzing the voltage amplitude,duration and frequency,the useful characteristics of time-frequency domain are extracted from module time-frequency matrixes(MTFMs).Four kinds of transient disturbance signals i.e.voltage sag,voltage rise,voltage fluctuation,and harmonic,are simulated by Matlab.The results of Matlab simulation show that this method can detect amplitude mutation,duration and frequency changes of the distarbance effectively,and has good ability of high frequency detection.These different characteristics can be used for further power quality disturbance recognition and comprehensive treatment.关键词
电能质量扰动/广义S变换/特性分析/煤矿Key words
power quality disturbance/generalized S-transformation(GST)/characteristic analysis/coal mine分类
信息技术与安全科学引用本文复制引用
王新环,武雪峥,付子义,刘志超..基于GST的煤矿电能质量扰动特性分析[J].测控技术,2017,36(9):11-17,7.基金项目
河南省高等学校重点科研项目(13150045) （13150045）
