A Simulation Approach for Optimising Energy-Efficient Driving Speed Profiles in Metro Lines

We propose a model for optimising driving speed profiles on metro lines to reduce traction energy consumption. The model optimises the cruising speed to be maintained on each section between two stations; the functions that link the cruising speed to the travel time on the section and the correspond...

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Bibliographic Details
Published inEnergies (Basel) Vol. 13; no. 22; p. 6038
Main Authors Gallo, Mariano, Botte, Marilisa, Ruggiero, Antonio, D’Acierno, Luca
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.11.2020
Subjects
Algorithms
Automation
Case studies
Cost control
Driving ability
driving speed profiles
Emission standards
Emissions
Energy conservation
Energy consumption
Energy efficiency
energy-saving
metro lines
railway sector
Railway stations
Simulation
Stochasticity
Travel time
Europe
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Summary:We propose a model for optimising driving speed profiles on metro lines to reduce traction energy consumption. The model optimises the cruising speed to be maintained on each section between two stations; the functions that link the cruising speed to the travel time on the section and the corresponding energy consumption are built using microscopic railway simulation software. In addition to formulating an optimisation model and its resolution through a gradient algorithm, the problem is also solved by using a simulation model and the corresponding optimisation module, with which stochastic factors may be included in the problem. The results are promising and show that traction energy savings of over 25% compared to non-optimised operations may be achieved.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13226038