Simulation of Electric Vehicle Charging Points Based on Efficient Use of Chargers and Using Recuperated Braking Energy from Trains

Lukáš Dvořáček, Martin Horák and Jaroslav Knápek
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Lukáš Dvořáček: Department of Economics, Management and Humanities, Faculty of Electrical Engineering, Czech Technical University in Prague, 16627 Prague, Czech Republic
Martin Horák: Department of Economics, Management and Humanities, Faculty of Electrical Engineering, Czech Technical University in Prague, 16627 Prague, Czech Republic
Jaroslav Knápek: Department of Economics, Management and Humanities, Faculty of Electrical Engineering, Czech Technical University in Prague, 16627 Prague, Czech Republic

Energies, 2022, vol. 15, issue 2, 1-28

Abstract: Electric vehicles represent an innovation in mobility that can help significantly reduce greenhouse emissions and mitigate climate change. However, replacing internal combustion with electric vehicles is not enough. This replacement needs to be complemented with a change in the energy mix of individual countries towards renewable energy sources and efficient use of electricity generated as a secondary product. Recuperative braking energy from trains can serve as one source of such secondary energy. Following an analysis of recuperative energy generated and analysis of charging requirements of individual electric vehicles, the paper proposes a model of a charging site near train stations. Using this energy to charge electric vehicles helps to reduce energy consumption from the electricity grid and thus reduce carbon emissions. Compared to other articles, the proposed model ensures the efficient use of recuperative braking energy from trains by using the variable charging power function; thereby, the installation of additional battery storage is eliminated. Our model results show that the benefits of a car park with a reservation system near train stations increase the car park efficiency, provide a sufficient number of private charging points, contribute to efficient use of recovered energy, and reduce carbon emissions.

Keywords: recuperative braking energy; train power system; varying the charger charging power; sharing economy; car park; low-power chargers; electric vehicle (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
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