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Optimizing train trajectories for energy consumption using a traction- and speed-dependent engine efficiency

Wießner, Evamarie (2017) Optimizing train trajectories for energy consumption using a traction- and speed-dependent engine efficiency. Eress Forum 2017, 31.Mai 2017, Paris, Frankreich.

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Abstract

Speed profile optimizations of trains constitute an effective method for the reduction of the overall energy consumption within a railway system. The study aims to determine energy efficient driving strategies by taking the power losses of the propulsion system as well as time constraints and physical limitations imposed by the train and its operational environment into account. Due to the complexity of the underlying problem an analytical approach can only be applied in a limited way. Instead, the paper proposes a novel solution based on dynamic programming. Considering the propulsion system's efficiency as either constant or variable, this enables a thorough comparison of different energy-efficient trajectories. Based on characteristic scenarios the potential for energy savings is identified and suitable driving strategies are derived. The study concludes with a discussion of the practical applicability of the suggested solution and its results.

Item URL in elib:https://elib.dlr.de/112588/
Document Type:Conference or Workshop Item (Speech)
Title:Optimizing train trajectories for energy consumption using a traction- and speed-dependent engine efficiency
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wießner, Evamarieevamarie.wiessner (at) dlr.deUNSPECIFIED
Date:31 May 2017
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:energy-efficient driving, optimizing train trajectories
Event Title:Eress Forum 2017
Event Location:Paris, Frankreich
Event Type:international Conference
Event Dates:31.Mai 2017
Organizer:Eress
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Verkehrsentwicklung und Umwelt II (old)
Location: Braunschweig
Institutes and Institutions:Institute of Transportation Systems
Deposited By: Wießner, Evamarie
Deposited On:20 Jun 2017 07:38
Last Modified:31 Jul 2019 20:09

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