Lumped-parameter-based electromagnetic transients simulation of non-uniform single-phase lines using state variable method

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dc.authoridMAMIS, MEHMET SALIH/0000-0002-6562-0839
dc.contributor.authorMamis, Mehmet Salih
dc.date.accessioned2024-08-04T20:49:04Z
dc.date.available2024-08-04T20:49:04Z
dc.date.issued2020
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThe characteristic impedance of a transmission line, a wire or a conductor changes in a non-uniform manner if the distance to the ground at all points longitudinally is not the same. Vertical conductors, transmission towers and sagging overhead lines are examples for the non-uniform lines. In this study, lumped-parameter-based state variable representation of the single-phase non-uniform line is described. From the lumped-parameter non-uniform line model a linear set of first-order differential equations is obtained in the form of state equations and this analytical expression is solved in closed form using MATLAB to obtain the transient response directly in the time domain. The closed-form solution has the advantage of obtaining the response of the system at an instant without the need for data in the previous states except for the initial conditions. The method also allows attaining the voltage and current profile of the system for any instant. In the illustrative cases presented, the systems with different surge impedance variations are considered and the surge response of a vertical conductor, an exponential line, and a horizontal cone and a vertical cone with constant and also varying propagation velocity are computed. The results are verified by those obtained using s-domain simulations of distributed-parameter transmission line and inverse Laplace transform.en_US
dc.identifier.doi10.1049/iet-gtd.2020.0454
dc.identifier.endpage5633en_US
dc.identifier.issn1751-8687
dc.identifier.issn1751-8695
dc.identifier.issue23en_US
dc.identifier.scopus2-s2.0-85095728626en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage5626en_US
dc.identifier.urihttps://doi.org/10.1049/iet-gtd.2020.0454
dc.identifier.urihttps://hdl.handle.net/11616/99617
dc.identifier.volume14en_US
dc.identifier.wosWOS:000588422300029en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherInst Engineering Technology-Ieten_US
dc.relation.ispartofIet Generation Transmission & Distributionen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjecttime-domain analysisen_US
dc.subjectLaplace transformsen_US
dc.subjectpoles and towersen_US
dc.subjectpower overhead linesen_US
dc.subjectdifferential equationsen_US
dc.subjecttransient responseen_US
dc.subjectpower transmission linesen_US
dc.subjectlumped parameter networksen_US
dc.subjectEMTPen_US
dc.subjectexponential lineen_US
dc.subjectdistributed-parameter transmission lineen_US
dc.subjectelectromagnetic transients simulationen_US
dc.subjectnonuniform single-phase linesen_US
dc.subjectstate variable methoden_US
dc.subjectcharacteristic impedanceen_US
dc.subjectvertical conductoren_US
dc.subjecttransmission towersen_US
dc.subjectsagging overhead linesen_US
dc.subjectstate variable representationen_US
dc.subjectsingle-phase nonuniform lineen_US
dc.subjectlumped-parameter nonuniform line modelen_US
dc.subjectfirst-order differential equationsen_US
dc.subjectstate equationsen_US
dc.subjecttransient responseen_US
dc.subjectclosed-form solutionen_US
dc.subjectsurge impedance variationsen_US
dc.subjectpropagation velocityen_US
dc.subjectMatlaben_US
dc.subjectinverse Laplace transformen_US
dc.subjects-domain simulationsen_US
dc.subjectvertical coneen_US
dc.subjecthorizontal coneen_US
dc.titleLumped-parameter-based electromagnetic transients simulation of non-uniform single-phase lines using state variable methoden_US
dc.typeArticleen_US

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