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Electronics
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Railway Traction Power Supply, 2nd Edition
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Railway Traction Power Supply, 2nd Edition

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: closed (30 December 2024) | Viewed by 4213

Special Issue Editor

Prof. Dr. Philippe Ladoux

E-Mail Website
Guest Editor
Laboratory of Plasma and Energy Conversion (LAPLACE), University of Toulouse, Toulouse, France
Interests: new topologies of power converters for medium and high voltage power systems; characterisation and implementation of new semiconductor devices in high power converters
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nowadays, electrified railway networks are considered one of the most environmentally friendly transportation systems. In the context of the need for increased rail transportation, both for freight and passenger services, the efficiency of the electric traction system, from the power supply to the rolling stock, is of central concern. This Special Issue will focus on advances in the domain of railway traction power supply at different levels: modelling, technologies, converters, and systems. All electrification systems, both direct current and alternating current, are addressed.

Papers on the following topics are welcome:

  • New solutions for interconnection to public grids (reversible substations, voltage balancers, frequency changers, etc.);
  • New solutions for power supply (FACTs, three-wire DC power supply, MVDC power systems, the integration of renewable energy sources, energy storage systems, etc.);
  • Interactions between rolling stock and power supplies (low-frequency stability, harmonic interactions, etc.).

The objective of this Special Issue is to gather papers from industries and academia in order to compare their experiences, visions, and research in the field of railway electrification systems.

Prof. Dr. Philippe Ladoux
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • rail transportation
  • traction power supplies
  • power converters
  • renewable energy sources
  • energy storage systems
  • power quality

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Related Special Issue

Published Papers (4 papers)

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Research

20 pages, 14942 KiB  
Article
Hybrid Energy Storage System for Regenerative Braking Utilization and Peak Power Decrease in 3 kV DC Railway Electrification System
by Adam Szeląg, Włodzimierz Jefimowski, Tadeusz Maciołek, Anatolii Nikitenko, Maciej Wieczorek and Mirosław Lewandowski
Electronics 2025, 14(9), 1752; https://doi.org/10.3390/electronics14091752 - 25 Apr 2025
Viewed by 156
Abstract
This paper proposes the sizing optimization method and energy management strategy for a stationary hybrid energy storage system dedicated to a DC traction power supply system. The hybrid energy storage system consists of two modules—a supercapacitor, mainly dedicated to regenerative energy utilization, and [...] Read more.
This paper proposes the sizing optimization method and energy management strategy for a stationary hybrid energy storage system dedicated to a DC traction power supply system. The hybrid energy storage system consists of two modules—a supercapacitor, mainly dedicated to regenerative energy utilization, and a Li-ion battery, aimed to peak power reduction. The sizing method and energy management strategy proposed in this paper aim to reduce the aging effect of lithium-ion batteries. It is shown that the parameters of both modules could be sized independently. The supercapacitor module parameters are sized based on the results of a simulation determining the regenerative power, resulting in limited catenary receptivity. The simulation model of the DC electrification system is validated by comparing the results of the simulation with the measurements of 15 min average power in a 24 h cycle as average values of one year. The battery module is sized based on the statistical data of 15 min substation power value occurrences. The battery energy capacity, its maximum discharge C-rate, and the conditions determining its operation are optimized to achieve the maximum ratio of annual income resulting from peak power reduction to annual operating cost resulting from the battery aging process and total life cycle. The case study prepared for a typical 3 kV DC substation with mixed railway traffic shows that peak power could be reduced by ~1 MW, giving a ~10-year payback period for battery module installation, while the energy consumption could be decreased by 1.9 MWh/24 h, giving a ~7.5-year payback period for supercapacitor module installation. The payback period of the whole energy storage system (ESS) is ~8.4 years. Full article
(This article belongs to the Special Issue Railway Traction Power Supply, 2nd Edition)
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26 pages, 6966 KiB  
Article
Applying Collaborative Co-Simulation to Railway Traction Energy Consumption
by David Golightly, Anirban Bhattacharyya, Ken Pierce, Zhongbei Tian, Zhiyuan Lin, Ronghui Liu, Xinnan Lyu, Kangrui Jiang and Xiao Liu
Electronics 2025, 14(7), 1467; https://doi.org/10.3390/electronics14071467 - 5 Apr 2025
Viewed by 227
Abstract
Simulation is a vital tool for understanding rail traction energy consumption. Simulating such energy consumption requires an understanding of the interactions between timetable, infrastructure, and driver behavior to be encapsulated within a multi-train system model. This is critical to simulating systemic interactions that [...] Read more.
Simulation is a vital tool for understanding rail traction energy consumption. Simulating such energy consumption requires an understanding of the interactions between timetable, infrastructure, and driver behavior to be encapsulated within a multi-train system model. This is critical to simulating systemic interactions that affect energy consumption on a rail network. However, building and executing such a system simulation is challenging because of diverse models, stakeholders, and knowledge, as well as a lack of tools to support flexible and scalable simulation. This paper presents a demonstration of co-simulation—an approach originating in the automotive industry and now being used in other sectors—that enables a system model to be assessed for different configurations of timetable, rolling stock, infrastructure, and driver behavior. This paper describes the co-simulation approach before outlining the development process that allowed three research institutes, each with diverse models, to collaborate and deliver an integrated, holistic modeling approach. The results of this work are presented and discussed, both in terms of the quantified outputs and findings for energy consumption, and the lessons learned through collaborative co-simulation. Future avenues to build on this work are identified. Full article
(This article belongs to the Special Issue Railway Traction Power Supply, 2nd Edition)
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17 pages, 9415 KiB  
Article
Integration of Rooftop Solar PV on Trains: Comparative Analysis of MPPT Methods for Auxiliary Power Supply of Locomotives in Milan
by Yasaman Darvishpour, Sayed Mohammad Mousavi Gazafrudi, Hamed Jafari Kaleybar and Morris Brenna
Electronics 2024, 13(17), 3537; https://doi.org/10.3390/electronics13173537 - 6 Sep 2024
Cited by 2 | Viewed by 1683
Abstract
As electricity demand increases, especially in transportation, renewable sources such as solar energy become more important. The direct integration of solar energy in rail transportation mostly involves utilizing station roofs and track side spaces. This paper proposes a novel approach by proposing the [...] Read more.
As electricity demand increases, especially in transportation, renewable sources such as solar energy become more important. The direct integration of solar energy in rail transportation mostly involves utilizing station roofs and track side spaces. This paper proposes a novel approach by proposing the integration of photovoltaic systems directly on the roofs of trains to generate clean electricity and reduce dependence on the main grid. Installing solar photovoltaic (PV) systems on train rooftops can reduce energy costs and emissions and develop a more sustainable and ecological rail transport system. This research focuses on the Milan Cadorna-Saronno railway line, examining the feasibility of installing PV panels onto train rooftops to generate power for the train’s internal consumption, including lighting and air conditioning. In addition, it is a solution to reduce the power absorbed by the train from the main supply. Simulations conducted using PVSOL software 2023 (R7) indicate that equipping a train roof with PV panels could supply up to almost 10% of the train’s auxiliary power needs, equating to over 600 MWh annually. Implementing the suggested system may also result in a decrease of more than 27 tons of CO2 emissions per year for one train. To optimize the performance of PV systems and maximize power output, the gravitational search algorithm (GSA) as an evolutionary-based method is proposed alongside a DC/DC boost converter and its performance is compared with two other main maximum power point tracking (MPPT) methods of perturb and observe (PO), and incremental conductance (INC). The accuracy of the suggested algorithm was confirmed utilizing MATLAB SIMULINK R2023b, and the results were compared with those of the PO and INC algorithms. The findings indicate that the GSA performs better in terms of accuracy, while the PO and INC algorithms demonstrate greater robustness and dynamic response. Full article
(This article belongs to the Special Issue Railway Traction Power Supply, 2nd Edition)
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18 pages, 10156 KiB  
Article
Reinforcement of DC Electrified Railways by a Modular Battery Energy Storage System
by Erick Matheus da Silveira Brito, Philippe Ladoux, Joseph Fabre and Benoit Sonier
Electronics 2024, 13(10), 1933; https://doi.org/10.3390/electronics13101933 - 15 May 2024
Viewed by 1442
Abstract
DC railway electrification was deployed at the beginning of the 20th century in several countries in Europe. Today, this power system is no longer adapted to the demands of increased rail traffic. Due to the relatively low voltage level, the current consumed by [...] Read more.
DC railway electrification was deployed at the beginning of the 20th century in several countries in Europe. Today, this power system is no longer adapted to the demands of increased rail traffic. Due to the relatively low voltage level, the current consumed by the trains reaches several kAs. So, in the worst case, the locomotives cannot operate at their rated power due to the voltage drop along the contact line. Conventional solutions to reduce the voltage drop consist of increasing the cross-section of overhead lines or reducing the length of sectors by installing additional substations. Nevertheless, these solutions are expensive and not always feasible. The implementation of a Modular Battery Energy Storage System (MBESS) can be an alternative solution to reinforce the railway power supply. This paper first presents an MBESS based on elementary blocks associating Full-SiC Isolated DC-DC converter and battery racks. The electrical models of a railway sector and an elementary block are described, and simulations are performed considering real railroad traffic on two sectors of the French National Rail Network, electrified at 1.5 kV. The results show that the installation of an MBESS in the railway sector boosts the locomotive’s voltage while also increasing overall system efficiency. Full article
(This article belongs to the Special Issue Railway Traction Power Supply, 2nd Edition)
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