DocumentCode
1459900
Title
Generalized Likelihood Ratio Test for Voltage Dip Detection
Author
Moschitta, Antonio ; Carbone, Paolo ; Muscas, Carlo
Author_Institution
Dept. of Electron. & Inf. Eng., Univ. of Perugia, Perugia, Italy
Volume
60
Issue
5
fYear
2011
fDate
5/1/2011 12:00:00 AM
Firstpage
1644
Lastpage
1653
Abstract
An alternative detection algorithm, based on the generalized likelihood ratio test (GLRT), is proposed for the detection of voltage dips in power systems. The proposed method is compared to the classical approaches based on the voltage root mean square. It is shown that the GLRT may provide competitive performance in terms of capability of correctly detecting the dip starting instant. A DSP-based experimental setup for the implementation of the method is also presented.
Keywords
least mean squares methods; power supply quality; power system faults; DSP; GLRT; generalized likelihood ratio test; power systems; voltage dip detection; voltage root mean square; Detectors; Estimation; Harmonic analysis; Noise; Threshold voltage; Voltage fluctuations; Wavelet analysis; Detection; IEC 61000-4-30; generalized likelihood ratio test (GLRT); power quality (PQ); voltage dips;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/TIM.2011.2113110
Filename
5720522
Link To Document