Impacts of electric vehicle charging under cold weather on power networks

Bayram, I Safak; (2021) Impacts of electric vehicle charging under cold weather on power networks. In: 2021 56th International Universities Power Engineering Conference (UPEC). IEEE, GBR. ISBN 9781665443890 (https://doi.org/10.1109/UPEC50034.2021.9548276)

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Abstract

Deep decarbonisation of the transportation requires widespread adoption of electric vehicles (EVs). Currently, the dominant energy storage technology for EVs is lithium based batteries which are designed to work under mild ambient temperatures (e.g. 21 Celsius). However, most cities with high EV penetration experience cold winter months when the performance of EVs is significantly degraded. In this paper, we present an impact assessment of cold weather EV charging on the power networks by reviewing existing literature on empirical studies related to battery performance, EV driving range, and charger characteristics. Two potential issues are identified. First, charging EVs at low temperatures significantly increases distribution network harmonics, hence limits the number of EVs that can be charged at the same time. Second, more frequent charging of EVs increases demand from the grid. To quantify this, a Monte Carlo based simulation is developed for the case of UK and results show that nearly 450 MW of extra generation is needed to cushion impacts of cold weather charging of 11 million vehicles. The problems pertinent to temperature effects on EV charging require greater attention as EVs are becoming the main mode of transport in the next decade.

  • Item type:Book Section
    ID code:79154
    Dates:
    Date
    Event
    3 September 2021
    Published
    10 July 2021
    Accepted
    Notes:© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:14 Jan 2022 15:38
    Last modified:15 Apr 2024 00:07
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/79154
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