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Optimizing energy consumption of regional trains through speed adjustment : a seasonal and regional perspective

Torkiharchegani, Amir LU orcid ; Scharmach, Marcel ; Alaküla, Mats LU orcid ; Persson, Rickard ; Lochman, Libor ; Ahrling, Christoffer LU orcid and Tunér, Martin LU (2025) rev2025 p.213-228
Abstract (Swedish)
Efficient energy management is a key challenge for regional train services,
especially when considering the seasonal variation in auxiliary energy demands such as heating, ventilation, and air conditioning (HVAC). This study
explores how adjusting the maximum operational speed of regional trains can
optimize energy consumption without exceeding design limits or necessitating larger battery sizes. By achieving a balance between train speed, available
travel time, and seasonal auxiliary energy needs, the study proposes an approach to enhance sustainability and reduce operational costs. The research
begins by modelling HVAC energy demands under different climatic conditions and train capacities. Using this model, energy... (More)
Efficient energy management is a key challenge for regional train services,
especially when considering the seasonal variation in auxiliary energy demands such as heating, ventilation, and air conditioning (HVAC). This study
explores how adjusting the maximum operational speed of regional trains can
optimize energy consumption without exceeding design limits or necessitating larger battery sizes. By achieving a balance between train speed, available
travel time, and seasonal auxiliary energy needs, the study proposes an approach to enhance sustainability and reduce operational costs. The research
begins by modelling HVAC energy demands under different climatic conditions and train capacities. Using this model, energy consumption for a batterypowered regional train is simulated on two distinct routes: each with unique
drive profile and timetables. The simulations are conducted using MATLAB,
considering the impact of speed adjustments on both traction energy and auxiliary energy requirements. Results demonstrate the significant potential of
speed adjustments to reduce total energy consumption. This approach ensures
that battery sizes remain manageable while maintaining performance standards across different routes and timetables. Furthermore, the findings
highlight the broader implications of speed adjustment on battery lifecycle,
and CO₂ emissions. This research underscores the importance of precise
speed adjustments in achieving optimal performance, cost-effectiveness, and
sustainability in regional rail services. (Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
rev2025 – 2nd Resource Efficient Vehicles Conference : Conference Proceedings - Conference Proceedings
pages
16 pages
publisher
Graz University Library Publishing
conference name
rev2025
conference location
Graz, Austria
conference dates
2025-09-23 - 2025-09-25
ISBN
9783903374485
9783903374485
project
EURail FP6 Future
language
Swedish
LU publication?
yes
id
50fa3fc9-4453-491f-92a6-3863bdd85566
alternative location
https://library.oapen.org/handle/20.500.12657/111756
date added to LUP
2026-09-15 16:58:12
date last changed
2026-09-17 16:23:14
@inproceedings{50fa3fc9-4453-491f-92a6-3863bdd85566,
  abstract     = {{Efficient energy management is a key challenge for regional train services,<br/>especially when considering the seasonal variation in auxiliary energy demands such as heating, ventilation, and air conditioning (HVAC). This study<br/>explores how adjusting the maximum operational speed of regional trains can<br/>optimize energy consumption without exceeding design limits or necessitating larger battery sizes. By achieving a balance between train speed, available<br/>travel time, and seasonal auxiliary energy needs, the study proposes an approach to enhance sustainability and reduce operational costs. The research<br/>begins by modelling HVAC energy demands under different climatic conditions and train capacities. Using this model, energy consumption for a batterypowered regional train is simulated on two distinct routes: each with unique<br/>drive profile and timetables. The simulations are conducted using MATLAB,<br/>considering the impact of speed adjustments on both traction energy and auxiliary energy requirements. Results demonstrate the significant potential of<br/>speed adjustments to reduce total energy consumption. This approach ensures<br/>that battery sizes remain manageable while maintaining performance standards across different routes and timetables. Furthermore, the findings<br/>highlight the broader implications of speed adjustment on battery lifecycle,<br/>and CO₂ emissions. This research underscores the importance of precise<br/>speed adjustments in achieving optimal performance, cost-effectiveness, and<br/>sustainability in regional rail services.}},
  author       = {{Torkiharchegani, Amir and Scharmach, Marcel and Alaküla, Mats and Persson, Rickard and Lochman, Libor and Ahrling, Christoffer and Tunér, Martin}},
  booktitle    = {{rev2025 – 2nd Resource Efficient Vehicles Conference : Conference Proceedings}},
  isbn         = {{9783903374485}},
  language     = {{swe}},
  pages        = {{213--228}},
  publisher    = {{Graz University Library Publishing}},
  title        = {{Optimizing energy consumption of regional trains through speed adjustment : a seasonal and regional perspective}},
  url          = {{https://library.oapen.org/handle/20.500.12657/111756}},
  year         = {{2025}},
}