Application of Traction Supply System for Charging Electric Cars

Mikołaj Bartłomiejczyk, Leszek Jarzebowicz and Roman Hrbáč
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Mikołaj Bartłomiejczyk: Faculty of Electrical and Control Engineering, Gdansk University of Technology, Narutowicza st. 11/12, 80-233 Gdansk, Poland
Leszek Jarzebowicz: Faculty of Electrical and Control Engineering, Gdansk University of Technology, Narutowicza st. 11/12, 80-233 Gdansk, Poland
Roman Hrbáč: Department of Electrical Engineering (420), Faculty of Electrical Engineering and Computer Science, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava-Poruba, Czech Republic

Energies, 2022, vol. 15, issue 4, 1-13

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 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.

Keywords: electric cars; EV charging; electromobility; trolleybuses; traction power supply (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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