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A Monovoltage Equivalent Model of Bi-Voltage Autotransformer-Based Electrical Systems in Railways
KTH, Skolan för elektro- och systemteknik (EES), Elektriska energisystem.ORCID-id: 0000-0003-2109-060X
2012 (engelsk)Inngår i: IEEE Transactions on Power Delivery, ISSN 0885-8977, E-ISSN 1937-4208, Vol. 27, nr 2, s. 699-708Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper presents an equivalent model that allows representing bi-voltage autotransformer- based systems (such as 2 x 25 kV ac, 2 x 15 kV ac) as if they were monovoltage systems. This model can be used for symmetrical (such as 2 x25-kV 50-Hz systems) and unsymmetrical (such as 12/24-kV 25-Hz systems) configurations. It is based on two simplifying hypotheses that establish relationships between currents and voltages in the positive and negative phases. These hypotheses are discussed and the accuracy of the model is evaluated by comparing the results with a detailed conventional model of power-supply systems.

sted, utgiver, år, opplag, sider
2012. Vol. 27, nr 2, s. 699-708
Emneord [en]
Power system modeling, rail transportation power system
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-95114DOI: 10.1109/TPWRD.2011.2179814ISI: 000302503900031Scopus ID: 2-s2.0-84859759310OAI: oai:DiVA.org:kth-95114DiVA, id: diva2:526839
Merknad
QC 20120515Tilgjengelig fra: 2012-05-15 Laget: 2012-05-14 Sist oppdatert: 2017-12-07bibliografisk kontrollert

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