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    Battery-assisted electric vehicle charging: data driven performance analysis

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    ali2020ISGT_cameraready.pdf
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    Authors
    Ali, Junade
    Dyo, Vladimir
    Zhang, Sijing
    Issue Date
    2020-11-10
    Subjects
    energy
    electric vehicles
    
    Metadata
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    Abstract
    As the number of electric vehicles rapidly increases, their peak demand on the grid becomes one of the major challenges. A battery-assisted charging concept has emerged recently, which allows to accumulate energy during off-peak hours and in-between charging sessions to boost-charge the vehicle at a higher rate than available from the grid. While prior research focused on the design and implementation aspects of battery- assisted charging, its impact at large geographical scales remains largely unexplored. In this paper we analyse to which extent the battery-assisted charging can replace high-speed chargers using a dataset of over 3 million EV charging sessions in both domestic and public setting in the UK. We first develop a discrete-event EV charge model that takes into account battery capacity, grid supply capacity and power output among other parameters. We then run simulations to evaluate the battery-assisted charging performance in terms of delivered energy, charging time and parity with conventional high-speed chargers. The results indicate that in domestic settings battery-assisted charging provides 98% performance parity of high-speed chargers from a standard 3 kW grid connection with a single battery pack. For non-domestic settings, the battery-assisted chargers can provide 92% and 99% performance parity of high-speed chargers with 10 battery packs using 3kW and 7kW grid supply respectively.
    Citation
    Ali J, Dyo V (2020) 'Battery-assisted electric vehicle charging: data driven performance analysis', 2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe) - Hague, .
    URI
    http://hdl.handle.net/10547/624135
    DOI
    10.1109/ISGT-Europe47291.2020.9248941
    Additional Links
    https://ieeexplore.ieee.org/document/9248941
    Type
    Conference papers, meetings and proceedings
    Language
    en
    ae974a485f413a2113503eed53cd6c53
    10.1109/ISGT-Europe47291.2020.9248941
    Scopus Count
    Collections
    Computing

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