Speed profile optimization of catenary-free electric trains with lithium-ion batteries


== Abstract ==

 Catenary-free operated electric trains, as one of the recent technologies in railway transportation, has opened a new field of research: speed profile optimization and energy optimal operation of catenary-free operated electric trains. A well-formulated solution for this problem should consider the characteristics of the energy storage device using validated models and methods. This paper discusses the consideration of the lithium-ion battery behavior in the problem of speed profile optimization of catenary-free operated electric trains. We combine the single mass point train model with an electrical battery model and apply a dynamic programming approach to minimize the charge taken from the battery during the catenary-free operation. The models and the method are validated and evaluated against experimental data gathered from the test runs of an actual battery-driven train tested in Essex, UK. The results show a significant potential in energy saving. Moreover, we show that the optimum speed profiles generated using our approach consume less charge from the battery compared to the previous approaches.

Document type: Article

== Full document ==
<pdf>Media:Draft_Content_898000735-beopen1239-3075-document.pdf</pdf>


== Original document ==

The different versions of the original document can be found in:

* [http://dx.doi.org/10.1007/s40534-018-0181-y http://dx.doi.org/10.1007/s40534-018-0181-y] under the license https://creativecommons.org/licenses/by

* [https://link.springer.com/content/pdf/10.1007%2Fs40534-018-0181-y.pdf https://link.springer.com/content/pdf/10.1007%2Fs40534-018-0181-y.pdf] under the license https://creativecommons.org/licenses/by/4.0

* [http://link.springer.com/article/10.1007/s40534-018-0181-y http://link.springer.com/article/10.1007/s40534-018-0181-y],
: [https://doaj.org/toc/2095-087X https://doaj.org/toc/2095-087X],
: [https://doaj.org/toc/2196-0577 https://doaj.org/toc/2196-0577] under the license cc-by

* [http://link.springer.com/content/pdf/10.1007/s40534-018-0181-y.pdf http://link.springer.com/content/pdf/10.1007/s40534-018-0181-y.pdf],
: [http://link.springer.com/article/10.1007/s40534-018-0181-y/fulltext.html http://link.springer.com/article/10.1007/s40534-018-0181-y/fulltext.html],
: [http://dx.doi.org/10.1007/s40534-018-0181-y http://dx.doi.org/10.1007/s40534-018-0181-y]

* [https://link.springer.com/content/pdf/10.1007%2Fs40534-018-0181-y.pdf https://link.springer.com/content/pdf/10.1007%2Fs40534-018-0181-y.pdf],
: [https://link.springer.com/article/10.1007/s40534-018-0181-y https://link.springer.com/article/10.1007/s40534-018-0181-y],
: [http://www.diva-portal.org/smash/record.jsf?pid=diva2:1253456 http://www.diva-portal.org/smash/record.jsf?pid=diva2:1253456],
: [https://paperity.org/p/185504421/speed-profile-optimization-of-catenary-free-electric-trains-with-lithium-ion-batteries https://paperity.org/p/185504421/speed-profile-optimization-of-catenary-free-electric-trains-with-lithium-ion-batteries],
: [https://rd.springer.com/article/10.1007/s40534-018-0181-y https://rd.springer.com/article/10.1007/s40534-018-0181-y],
: [https://academic.microsoft.com/#/detail/2909136609 https://academic.microsoft.com/#/detail/2909136609] under the license https://creativecommons.org/licenses/by/4.0