A modified implementation of the Folded Line Equivalent transmission line model in the Alternative Transient Program

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dc.contributor.authorColqui, Jaimis S.L.
dc.contributor.authorTimaná, Luis Carlos
dc.contributor.authorCaballero, Pablo Torrez
dc.contributor.authorKurokawa, Sérgio [UNESP]
dc.contributor.authorFilho, José Pissolato
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionCatholic University of Colombia
dc.contributor.institutionResearch and Development Center in Telecommunications - CPQD
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-03-02T06:29:44Z
dc.date.available2023-03-02T06:29:44Z
dc.date.issued2022-10-01
dc.description.abstractThis paper proposes a modified implementation of the Folded Line Equivalent transmission line model to represent three-phase transmission lines. The Folded line equivalent decomposes a line into its open circuit and short circuit contributions. We propose an alternative orthogonal matrix to transform single-phase transmission line parameters, voltages, and currents to the Folded Line Equivalent domain. Because the proposed matrix is orthogonal, it can directly represent bidirectional transformations using circuit components in simulation software, such as the ATP-EMTP. First, the circuit implementation of Clarke's matrix decouples a three-phase transmission line into its modes. Then, the circuit implementation of the proposed matrix decouples each mode into its open circuit and short circuit contributions. This paper proves that the proposed approach outputs similar results as those obtained by the Universal Line Model and the JMarti model in the simulation of transmission lines under open-circuit, energization, and fault conditions. However, because the proposed model does not derive from the method of characteristics, it can run with simulation times greater than the propagation delay of the transmission line. It is shown that the proposed approach outputs accurate results for time steps that are 10%, 100%, 200%, and 400% of the propagation delay of the transmission line. Thus, one major advantage of the proposed approach is that it can be used to reduce runtimes in the representation of short transmission lines in large complex networks by increasing time steps without compromising accuracy.en
dc.description.affiliationSchool of Electrical and Computer Engineering State University of Campinas - UNICAMP, Av. Albert Einstein 400
dc.description.affiliationDepartment of Electronic and Telecommunications Engineering Catholic University of Colombia, Av. Caracas 46 -13
dc.description.affiliationResearch and Development Center in Telecommunications - CPQD, R. Dr. Ricardo Benetton Martins 1.000
dc.description.affiliationDepartment of Electrical Engineering São Paulo State University - UNESP, Av. Brasil 56
dc.description.affiliationUnespDepartment of Electrical Engineering São Paulo State University - UNESP, Av. Brasil 56
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCAPES: 001
dc.description.sponsorshipIdFAPESP: 2021/06157-5
dc.identifierhttp://dx.doi.org/10.1016/j.epsr.2022.108185
dc.identifier.citationElectric Power Systems Research, v. 211.
dc.identifier.doi10.1016/j.epsr.2022.108185
dc.identifier.issn0378-7796
dc.identifier.scopus2-s2.0-85133354559
dc.identifier.urihttp://hdl.handle.net/11449/242004
dc.language.isoeng
dc.relation.ispartofElectric Power Systems Research
dc.sourceScopus
dc.subjectElectromagnetic transients
dc.subjectEMT-type programs
dc.subjectFolded Line Equivalent
dc.subjectTransmission line modeling
dc.titleA modified implementation of the Folded Line Equivalent transmission line model in the Alternative Transient Programen
dc.typeArtigo
unesp.author.orcid0000-0001-5095-7298[1]
unesp.author.orcid0000-0003-4854-1036 0000-0003-4854-1036[3]
unesp.departmentEngenharia Elétrica - FEISpt

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Ilha Solteira - FEIS - Faculdade de Engenharia