周贤姣,张建文,仲金龙,陈建宇.基于SVD的电压跌落持续时间检测新方法[J].电测与仪表,2015,52(12):. ZHOU Xian-jiao,ZHANG Jian-wen,ZHONG Jin-long,CHEN Jian-yu.A New detection method of voltage sag duration based onSVD[J].Electrical Measurement & Instrumentation,2015,52(12):.
基于SVD的电压跌落持续时间检测新方法
A New detection method of voltage sag duration based onSVD
In view of the duration of voltage sag detection problem, which put forward a new method of using the Hankel matrix singular value decomposition (SVD) theory to detect the voltage sag begin-end time , and applicability simulated analysis the different drop amplitude, harmonic and noise under three kinds of jamming, and propose to contain the noise voltage drop choosing appropriate SVD components for signal reconstruction, evaluate the SVD in the reconstructed signal voltage dro-p begin-end time. By Matlab7.0 platform simulation validation of the proposed method, the results show that the detection method principle is simple, testing precision and strong applicability.
