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Dual mode locomotives systems study of new freight locomotives for Sweden
KTH, School of Electrical Engineering (EES), Electrical Machines and Power Electronics (closed 20110930).ORCID iD: 0000-0001-7330-146X
2008 (English)Conference paper (Refereed)
Abstract [en]

A conceptual study for a Swedish dual-mode locomotive is presented. The primary energy sources are AC electricity from an overhead catenary system or a diesel-electric generator system. The study focuses on analysing how freight operations and locomotive utilisation can be improved and how it can affect environmental aspects of freight operations. Based on project experiences and operative demands, a system proposal has been presented. The rated power output is considerably higher in electric mode compared to diesel mode. The reason for this being higher power demand on electrified main lines compared to branch lines and yards lacking overhead catenary where the power need is lower. The starting tractive effort will however be the same regardless of electric mode or diesel mode, making it possible to haul the same train weight in both propulsion modes. The study has shown that dual-mode locomotives for Swedish freight operations are most interesting in order to improve operations, degree of utilisation and environmental performance.

Place, publisher, year, edition, pages
2008. 263-268 p.
, Proceedings of the ASME/IEEE/ASCE Joint Rail Conference, JRC 2008
Keyword [en]
Dual-mode locomotives, Freight operations, Locomotive utilisation, Branch-line, Conceptual study, Dual modes, Environmental aspects, Environmental performance, Overhead catenary system, Power demands, Power needs, Power out put, Primary energy source, Project experiences, Tractive effort, Electric generators, Electric machinery, Engines, Locomotives
National Category
Transport Systems and Logistics Civil Engineering
URN: urn:nbn:se:kth:diva-154097ISI: 000256552000028ScopusID: 2-s2.0-69949181961ISBN: 0791848124ISBN: 9780791848128OAI: diva2:759779
ASME/IEEE/ASCE Joint Rail Conference, JRC 2008; Wilmington, DE; United States; 22 April 2008 through 24 April 2008

QC 20141031

Available from: 2014-10-31 Created: 2014-10-14 Last updated: 2014-10-31Bibliographically approved

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Östlund, Stefan
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Electrical Machines and Power Electronics (closed 20110930)
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