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Dual mode locomotives - System studies of new freight locomotives for Sweden
TFK - Transport Research Institute.
TFK - Transport Research Institute.
KTH, School of Engineering Sciences (SCI), Centres, The KTH Railway Group. KTH, School of Electrical Engineering (EES), Electrical Machines and Power Electronics (closed 20110930). (Elektriska maskiner och effektelektronik)ORCID iD: 0000-0001-7330-146X
2008 (English)In: Proceedings of IEEE/ASME Joint Railroad Conference, 2008, 263-268 p.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.
Keyword [en]
Dual-mode locomotives, Freight operations, Locomotive utilisation
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Järnvägsgruppen - Effektiva tågsystem för godstrafik
URN: urn:nbn:se:kth:diva-26507DOI: 10.1115/JRC2008-63057ISBN: 978-079184812-8OAI: diva2:372488
ASME/IEEE/ASCE Joint Rail Conference, JRC 2008; Wilmington, DE; 22 April 2008 through 24 April 2008

QC 20110127

Available from: 2010-11-25 Created: 2010-11-25 Last updated: 2016-06-20Bibliographically approved

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Skoglund, MattiasÖstlund, Stefan
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