A Novel Methodology to Estimate Probability Density Function of Voltage Sag Duration and Failure Rates on Power Distribution Systems

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dc.contributor.authorCebrian, Juan C. [UNESP]
dc.contributor.authorGiacomini, Jairo [UNESP]
dc.contributor.authorCarneiro, Carlos A. [UNESP]
dc.contributor.authorSilva, Gabriela B. [UNESP]
dc.contributor.authorMorales-Paredes, Helmo K. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-07-29T16:06:05Z
dc.date.available2023-07-29T16:06:05Z
dc.date.issued2023-01-01
dc.description.abstractVoltage sags and power interruptions are important power quality problems that affect sensitive customers, mainly because they cause annual massive economical losses to the industrial sector as a result of unexpected production process disruptions. In this sense, to propose corrective and preventive measures and improve the power quality of the distribution systems, stochastic methodologies have been proposed in the literature to estimate annual voltage sags and power interruptions. However, these methodologies, generally, use typical cumulative distribution functions of voltage sag duration (PSgD), which may not reflect the real estate of the network under study. To solve this constraint, this paper proposes a novel methodology to estimate a proper PSgD considering information of the distribution network (i.e., topology and coordination schemes of the protection system) and the stochastic behaviors of short-circuits that can affect the distribution system. Moreover, the proposed methodology allows estimating permanent failure rates and average repair time considering known or expected values of reliability indicators. The results show that this proposed methodology is capable to adapt from an initial PSgD curve to another one with fidelity, in order to achieve real values of expected annual power interruptions.en
dc.description.affiliationSão Paulo State University (UNESP) Institute of Science and Engineering, São Paulo
dc.description.affiliationSão Paulo State University (UNESP) Institute of Science and Technology, São Paulo
dc.description.affiliationUnespSão Paulo State University (UNESP) Institute of Science and Engineering, São Paulo
dc.description.affiliationUnespSão Paulo State University (UNESP) Institute of Science and Technology, São Paulo
dc.format.extent16863-16874
dc.identifierhttp://dx.doi.org/10.1109/ACCESS.2023.3243552
dc.identifier.citationIEEE Access, v. 11, p. 16863-16874.
dc.identifier.doi10.1109/ACCESS.2023.3243552
dc.identifier.issn2169-3536
dc.identifier.scopus2-s2.0-85148430955
dc.identifier.urihttp://hdl.handle.net/11449/249672
dc.language.isoeng
dc.relation.ispartofIEEE Access
dc.sourceScopus
dc.subjectDistribution networks
dc.subjectpower interruption
dc.subjectprobability distribution function
dc.subjectreliability indicators
dc.subjectvoltage sag
dc.titleA Novel Methodology to Estimate Probability Density Function of Voltage Sag Duration and Failure Rates on Power Distribution Systemsen
dc.typeArtigo
unesp.author.orcid0000-0001-8507-3791[1]
unesp.author.orcid0000-0003-1911-3948[2]
unesp.author.orcid0000-0002-0551-1243[4]
unesp.author.orcid0000-0001-8664-3573[5]

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