Statistical Properties of Voltage Dip Detectors

Author

Guerrieri, Gianluca ; Moschitta, Antonio ; Carbone, Paolo ; Muscas, Carlo

Author_Institution

Dept. of Electron. & Inf. Eng., Univ. of Perugia, Perugia, Italy

Volume

59

Issue

11

fYear

2010

Firstpage

2800

Lastpage

2807

Abstract

In this paper, some statistical properties of procedures defined to detect voltage dips in electric power systems are discussed. First, a theoretical model 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

power supply quality; statistical analysis; IEC 61000-4-30; electric power systems; generalized likelihood ratio test; power quality; receiver operating characteristic; root-mean-square based test; statistical properties; voltage dip detectors; Detectors; Harmonic analysis; IEC standards; Monte Carlo methods; Signal to noise ratio; Threshold voltage; Voltage fluctuations; Generalized Likelihood Ratio Test (GLRT); IEC 61000-4-30; Power Quality (PQ); root-mean-square (rms); voltage dips;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2010.2060770

Filename

5557808