Research Article
Battery Charging Station for Electric Vehicles Based on Bipolar DC Power Grid with Grid-to-Vehicle, Vehicle-to-Grid and Vehicle-to-Vehicle Operation Modes
@INPROCEEDINGS{10.1007/978-3-030-73585-2_12, author={Tiago J. C. Sousa and V\^{\i}tor Monteiro and S\^{e}rgio Coelho and Lu\^{\i}s Machado and Delfim Pedrosa and Jo\"{a}o L. Afonso}, title={Battery Charging Station for Electric Vehicles Based on Bipolar DC Power Grid with Grid-to-Vehicle, Vehicle-to-Grid and Vehicle-to-Vehicle Operation Modes}, proceedings={Sustainable Energy for Smart Cities. Second EAI International Conference, SESC 2020, Viana do Castelo, Portugal, December 4, 2020, Proceedings}, proceedings_a={SESC}, year={2021}, month={4}, keywords={Electric vehicle Battery charging station Bipolar dc Power Grid Three-Level dc-dc Converter}, doi={10.1007/978-3-030-73585-2_12} }- Tiago J. C. Sousa
Vítor Monteiro
Sérgio Coelho
Luís Machado
Delfim Pedrosa
João L. Afonso
Year: 2021
Battery Charging Station for Electric Vehicles Based on Bipolar DC Power Grid with Grid-to-Vehicle, Vehicle-to-Grid and Vehicle-to-Vehicle Operation Modes
SESC
Springer
DOI: 10.1007/978-3-030-73585-2_12
Abstract
This paper proposes an electric vehicle (EV) battery charging station (EV-BCS) based on a bipolar dc power grid with the capabilities of returning energy back to the power grid (vehicle-to-grid – V2G mode), as well as to perform power transfer between different EVs connected to the EV-BCS without drawing power from the power grid (vehicle-to-vehicle – V2V mode), besides the traditional battery charging operation (grid-to-vehicle – G2V mode). The proposed EV-BCS is modular, using three-level bidirectional dc-dc converters. In this paper, for simplicity reasons, only two converters, and hence two EVs, are considered in order to validate the previously referred operation modes. Furthermore, unbalanced operation from the EVs side is also considered for all the operation modes, aiming to consider a real scenario of operation. Simulation results verify the correct operation of the EV-BCS in all cases, with balanced and unbalanced current consumption from the EVs resulting always in balanced currents from the bipolar dc power grid side.
