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- Title
Optimal running time supplement for the energy‐efficient train control considering the section running time constraint.
- Authors
Rao, Yu; Sun, Pengfei; Wang, Qingyuan; Bai, Baoxue; Feng, Xiaoyun
- Abstract
The energy consumption and operation efficiency of congested rail networks is a primary concern of railway operators. Although achieving the optimal running time supplement helps to reduce the energy consumption of trains, the section running time is usually limited to improve the operation efficiency, which will influence the optimal running time supplement. Here, based on the Lagrange analysis and the Pontryagin's maximum principle, the optimal structure of an energy‐efficient driving strategy is found for a train journey on non‐level track subject to section running time constraints. The existence and uniqueness of the optimal solution for this constrained energy‐efficiency train control problem is proved by the perturbation analysis method, and based on which an algorithm for solving this problem is proposed. Finally, the results are illustrated by finding optimal control sequences and associated speed profile for the freight train in some elementary but realistic examples.
- Subjects
PONTRYAGIN'S minimum principle; TRAIN schedules
- Publication
IET Intelligent Transport Systems (Wiley-Blackwell), 2022, Vol 16, Issue 5, p661
- ISSN
1751-956X
- Publication type
Article
- DOI
10.1049/itr2.12164