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Energies
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Smart Grids for Charging Electric Vehicles
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Smart Grids for Charging Electric Vehicles

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "E: Electric Vehicles".

Deadline for manuscript submissions: closed (10 April 2022) | Viewed by 7103

Special Issue Editor

Dr. Mikołaj Bartłomiejczyk

E-Mail Website
Guest Editor
Department of Transport Electrical Engineering, Faculty of Electrical and Control Engineering, Gdańsk University of Technology, 80-233 Gdańsk, Poland
Interests: electric vehicles; renewable energy technologies; energy conversion; power converters; power systems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

There is no doubt that at present, all of us, in one way or another, are experiencing an increasing number of issues when it comes to transportation in everyday life. This presents engineers with the need to introduce new techniques to facilitate the movement of passengers and goods. The progress of science in the field of transport engineering is focused on modern electric traction, broadly understood electromobility, and the energy efficiency of electrified transport.

The development of electromobility requires the development of infrastructure, and above all the construction of a dense network of vehicle charging stations. However, charging stations are consumers of electricity of a variable nature, which has a significant impact on the operation of the energy system. On the other hand, modern control technologies allow the vehicle charging power to be controlled and adjusted to the current state of the energy system. Vehicle-to-grid systems are also becoming more and more popular. Therefore, they require the use of smart grid technology, which is applicable in the commercial power industry. Thanks to smart grid solutions, electric transportation systems cease to be only an energy receiver and become a dynamic link of the energy system, increasing the possibility of energy flow in the supply system. An important area of infrastructure development will be the integration of various electric traction systems and local sources of electric power.

The purpose of this Special Issue is to address the advances in research related to the application of smart grid technologies for transportation electrification. We invite original manuscripts presenting recent advances in this area.

Dr. Mikołaj Bartłomiejczyk
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. Energies 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 2600 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

  • smart grids
  • electric vehicles
  • charging stations
  • electromobility
  • in-motion charging
  • dynamic charging
  • electric buses
  • energy storage system
  • electric traction

Published Papers (3 papers)

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Research

15 pages, 6748 KiB  
Article
Compensation of Voltage Drops in Trolleybus Supply System Using Battery-Based Buffer Station
by Mikołaj Bartłomiejczyk, Leszek Jarzebowicz and Jiří Kohout
Energies 2022, 15(5), 1629; https://doi.org/10.3390/en15051629 - 22 Feb 2022
Cited by 6 | Viewed by 1587
Abstract
This paper analyzes the results of a trial operation of a battery-based buffer station supporting a selected section of trolleybus power supply systems in Pilsen, Czech Republic. The buffer station aims to prevent the catenary from excessive voltage drops in a part of [...] Read more.
This paper analyzes the results of a trial operation of a battery-based buffer station supporting a selected section of trolleybus power supply systems in Pilsen, Czech Republic. The buffer station aims to prevent the catenary from excessive voltage drops in a part of the route that is most remote from the traction substation. Compensation of voltage drops is carried out by continuously measuring the catenary voltage and injecting the current into the catenary if the voltage decreases below a preset value. The effectiveness of such a solution was evaluated by the analysis of numerous experimental recordings, both from the buffer station itself and from trolleybuses in operation. Further on, based on the recordings, a utilized battery capacity was estimated and a control method for decreasing the required capacity was proposed. The optimal capacity analysis, supplemented with an evaluation of required output current rating, was used to define the best storage technology for the considered application. Full article
(This article belongs to the Special Issue Smart Grids for Charging Electric Vehicles)
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13 pages, 42316 KiB  
Article
Application of Traction Supply System for Charging Electric Cars
by Mikołaj Bartłomiejczyk, Leszek Jarzebowicz and Roman Hrbáč
Energies 2022, 15(4), 1448; https://doi.org/10.3390/en15041448 - 16 Feb 2022
Cited by 9 | Viewed by 2937
Abstract
The development of electromobility involves the development of electric cars charging infrastructure. The increase of the number of chargers poses new demands for the AC power grid, especially in regard to its capacity of delivering high peak power. As an alternative for the [...] Read more.
The development of electromobility involves the development of electric cars charging infrastructure. The increase of the number of chargers poses new demands for the AC power grid, especially in regard to its capacity of delivering high peak power. As an alternative for the public AC power grid, urban electrified transportation systems (trams, trolleybuses, and metro) can be used for supplying electric cars chargers. The article discusses four options of integrating electric cars chargers with a traction power supply system. The option of connecting the charger to the traction overhead supply line has been selected due to the spatial availability of the power source and possibility to use regenerative braking energy for charging. A set of criteria has been developed for analysing the capability of the traction supply system to feed electric cars chargers. An exemplary feasibility analysis was carried out for trolleybus traction supply system in Gdynia, Poland. The impact of installing the charging station on specific traction supply parameters has been predicted using present-state recordings of electrical parameters and assumed charging station power. The study shows that every supply section of the considered trolleybus traction system has the capability of installing a fast-charging station, which provides opportunities of expanding the charging stations network in Gdynia. Full article
(This article belongs to the Special Issue Smart Grids for Charging Electric Vehicles)
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20 pages, 4532 KiB  
Article
Modeling of Electrified Transportation Systems Featuring Multiple Vehicles and Complex Power Supply Layout
by Aleksander Jakubowski, Leszek Jarzebowicz, Mikołaj Bartłomiejczyk, Jacek Skibicki, Slawomir Judek, Andrzej Wilk and Mateusz Płonka
Energies 2021, 14(24), 8196; https://doi.org/10.3390/en14248196 - 7 Dec 2021
Cited by 7 | Viewed by 1881
Abstract
The paper proposes a novel approach to modeling electrified transportation systems. The proposed solution reflects the mechanical dynamics of vehicles as well as the distribution and losses of electric supply. Moreover, energy conversion losses between the mechanical and electrical subsystems and their bilateral [...] Read more.
The paper proposes a novel approach to modeling electrified transportation systems. The proposed solution reflects the mechanical dynamics of vehicles as well as the distribution and losses of electric supply. Moreover, energy conversion losses between the mechanical and electrical subsystems and their bilateral influences are included. Such a complete model makes it possible to replicate, e.g., the impact of voltage drops on vehicle acceleration or the necessity of partial disposal of regenerative braking energy due to temporary lack of power transmission capability. The modeling methodology uses a flexible twin data-bus structure, which poses no limitation on the number of vehicles and enables modeling complex traction power supply structures. The proposed solution is suitable for various electrified transportation systems including suburban and urban systems. The modeling methodology is applicable i.a. to Matlab/Simulink, which makes it broadly available and customizable, and provides short computation time. The applicability and accuracy of the method were verified by comparing simulation and measurement results on an exemplary trolleybus system operating in Pilsen, Czech Republic. Simulation of daily operation of an area including four supply sections and maximal simultaneous number of nine vehicles showed a good conformance with the measured data, with the difference in the total consumed energy not exceeding 5%. Full article
(This article belongs to the Special Issue Smart Grids for Charging Electric Vehicles)
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