Operation and energy evaluation of diesel and hybrid trains with smart switching controls

Din, Tajud, Tian, Zhongbei ORCID: 0000-0001-7295-3327, Li, Kang, Hillmansen, Stuart and Roberts, Clive
(2021) Operation and energy evaluation of diesel and hybrid trains with smart switching controls. Control Engineering Practice, 116. p. 104935.

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Energy and environmental sustainability in urban rail transport have attracted substantial attention in the last decade. In the UK, about 29% of the current train fleets are run solely on diesel fuel, and the UK Government has pledged to remove all diesel-only trains by 2040. One option to achieve this ambitious goal is replacing diesel trains with hybrid trains. However, little has been done to evaluate the operational performance of replacing diesel trains with hybrid trains on the same track. This paper develops a novel Hybrid Train Simulator which can analyse the driving performance and energy flow among multiple energy sources (diesel, hydrogen and battery). Several practical case studies are presented based on typical mainline railways in the UK. Operation performance using diesel trains and hybrid trains is compared. This paper also proposes automatic smart switching control between multiple power sources according to the altitude of the route for hybrid trains. The case studies indicate that hybrid trains increase the journey time due to their low power capacity but improve energy efficiency significantly. Besides, implementing auto-switching on hybrid trains can reduce energy consumption by 6% compared with benchmark hybrid trains.

Item Type: Article
Uncontrolled Keywords: Benchmark, Diesel train, Hybrid train, Simulation
Divisions: Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Depositing User: Symplectic Admin
Date Deposited: 20 Sep 2021 07:53
Last Modified: 18 Jan 2023 21:28
DOI: 10.1016/j.conengprac.2021.104935
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3137626