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Enhanced Delay-Rational Green's Method for Cable Time Domain Analysis
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.ORCID iD: 0000-0003-0015-0431
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.ORCID iD: 0000-0003-4160-214X
Department of Electrical Engineering, University of L’Aquila.
University of L’Aquila.
2015 (English)In: 2015 International Conference on Electromagnetics in Advanced Applications (ICEAA): Turin, 7-11 Sept. 2015, Piscataway, NJ: IEEE Communications Society, 2015, p. 1228-1231Conference paper, Published paper (Refereed)
Abstract [en]

State-space models of multiconductor transmissionlines can be generated by means of the Green’s function basedmethod which allows to write the open-end impedance in arational form as an infinite sum of “modal impedances”. Itcan be then embedded in a circuit simulation environment forefficient time domain analysis. The previous rational approachhas been improved through a proper mathematical formulation,that makes use of explicit delay extraction and pole/residueasymptotic behavior. Nevertheless, the computation of the polesbecomes computationally expensive when the number of conductorsincreases, since the zeros of high order polynomials haveto be evaluated. A rational fitting over the “modal impedances”is proposed, which allows a fast identification of the poles that,together with the delays, model the high frequency behavior ofthe cable in terms of standard hyperbolic functions. The lowfrequencybehavior is captured by a reduced size state-spacemodel, via rational fitting. Numerical results confirm the accuracyof the proposed modeling approach for electrically long cables,with a large number of conductors.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2015. p. 1228-1231
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
URN: urn:nbn:se:ltu:diva-34794DOI: 10.1109/ICEAA.2015.7297314Scopus ID: 2-s2.0-84955472717Local ID: 916affa3-6bd1-41a5-83cf-97797b2dc9e5OAI: oai:DiVA.org:ltu-34794DiVA, id: diva2:1008045
Conference
International Conference on Electromagnetics in Advanced Applications : 07/09/2015 - 11/09/2015
Projects
Frekvensomriktares funktion i beredskapskritiska system
Note

Validerad; 2016; Nivå 1; 20150409 (jekman)

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved

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De Lauretis, MariaEkman, Jonas

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