<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Voltage sags can cause interruptions of industrial processes, which could result as a malfunction of equipment and considerable economic losses. Thus, it is very useful to see certain rules of voltage sags occurrence due to duration and depth.</p><p>This paper presents statistical analyses of voltage sags in several domestic and industrial transformer stations. Voltage sag probability functions are calculated from actual measurement data, by means of a hill climbing algorithm. Lognormal and Weibull frequency distribution functions are used to describe distribution of measured voltage dips.</p></abstract>

Voltage sags can cause interruptions of industrial processes, which could result as a malfunction of equipment and considerable economic losses. Thus, it is very useful to see certain rules of voltage sags occurrence due to duration and depth.This paper presents statistical analyses of voltage sags in several domestic and industrial transformer stations. Voltage sag probability functions are calculated from actual measurement data, by means of a hill climbing algorithm. Lognormal and Weibull frequency distribution functions are used to describe distribution of measured voltage dips.

Probability Density Functions of Voltage Sags Measured Indices

The Faculty of Electrical Engineering, J. J. Strossmayer University of Osijek, Kneza Trpimira 2b, 31 000 Osijek, Croatia

Journal of Electrical Engineering

{"article-title":"Probability Density Functions of Voltage Sags Measured Indices"}

Voltage sags can cause interruptions of industrial processes, which could result as a malfunction of equipment and considerable economic losses. Thus, it is...

Probability Density Functions of Voltage Sags Measured Indices

Published Online: Dec 21, 2011

Page range: 335 - 341

DOI: https://doi.org/10.2478/v10187-011-0053-8

Keywords
power quality, voltage sag, probability functions, chi squared criterion, hill climbing algorithm

This content is open access.

Probability Density Functions of Voltage Sags Measured Indices

Published Online: Dec 21, 2011

Page range: 335 - 341

DOI: https://doi.org/10.2478/v10187-011-0053-8

Keywordspower quality, voltage sag, probability functions, chi squared criterion, hill climbing algorithm

This content is open access.

Keywords
power quality, voltage sag, probability functions, chi squared criterion, hill climbing algorithm