电测与仪表2017，Vol.54Issue(10)：74-79,6.
基于复小波变换和有效值算法的电压暂降检测方法
Voltage sag detection method based on complex wavelet transform and RMS algorithm
摘要
Abstract
The accurate detection of duration time,amplitude and phase jump of voltage sag is the primary problem for voltage sag compensation.A voltage sag detection method based on complex wavelet transform and RMS algorithm is proposed in this paper.The principle of wavelet singularity detection and its application in the starting and ending times for voltage sag detection are studied in detail.The begin-end time,phase jump and amplitude of voltage sag is detected by using the fourth derivative of a complex Gaussian wavelet (Cgau4) and RMS algorithm.The performance of the algorithm is validated and confirmed through simulation studies about voltage sag problem with distortion or not using the Matlab/Simulink analysis program.The experimental results show that the method can accurately detect the three kinds of characteristics of the voltage sag.关键词
电压暂降/复小波变换/有效值算法Key words
voltage sag/complex wavelet transform/RMS algorithm分类
信息技术与安全科学引用本文复制引用
张艳,殷礼胜,马瑞卿,刘冬梅,杨重良..基于复小波变换和有效值算法的电压暂降检测方法[J].电测与仪表,2017,54(10):74-79,6.基金项目
国家自然科学基金资助项目(51577046,11105037) （51577046,11105037）
安徽省科技计划重点项目(1301022036) （1301022036）
