Title :
Statistical properties of voltage dip detectors
Author :
Guerrieri, G. ; Moschitta, A. ; Carbone, P. ; Muscas, C.
Author_Institution :
Dept. of Electron. & Inf. Eng., Univ. of Perugia, Perugia, Italy
Abstract :
In this paper, some statistical properties of procedures defined to detect voltage dips in electric power systems are discussed. First, a theoretical modeling of the root -mean-square based test proposed in the IEC 61000-4-30 is provided and validated. Then, an alternative detection algorithm, based on the Generalized Likelihood Ratio Test (GLRT), is proposed, and compared to the 61000-4-30 test. It is shown that the GLRT may provide competitive performance, in terms of Receiver Operating Characteristic (ROC), if compared to the standardized procedure.
Keywords :
AWGN channels; power supply quality; sensitivity analysis; statistical analysis; electric power systems; generalized likelihood ratio test; power quality; receiver operating characteristic; statistical properties; voltage dip detectors; Detectors; IEC standards; Monitoring; Power engineering and energy; Power generation; Power measurement; Power quality; Testing; Threshold voltage; Voltage fluctuations; Generalized Likelihood Ratio Test; IEC 61000-4-30; Power Quality; root-mean-square; voltage dips;
Conference_Titel :
Advanced Methods for Uncertainty Estimation in Measurement, 2009. AMUEM 2009. IEEE International Workshop on
Conference_Location :
Bucharest
Print_ISBN :
978-1-4244-3593-7
Electronic_ISBN :
978-1-4244-3593-7
DOI :
10.1109/AMUEM.2009.5207598
