Harry Humfrey
Dynamic Charging of Electric Vehicles Integrating Renewable Energy: A Multi-Objective Optimisation Problem
Humfrey, Harry; Sun, Hongjian; Jiang, Jing
Abstract
Dynamically charging electric vehicles (EVs) have the potential to significantly reduce range anxiety and decrease the size of battery required for acceptable range. However, with the main driver for progressing EV technology being the reduction of carbon emissions, consideration of how a dynamic charging system would impact these emissions is required. This study presents a demand-side management method for allocating resources to charge EVs dynamically considering the integration of local renewable generation. A multi-objective optimisation problem is formulated to consider individual users, an energy retailer and a regulator as players with conflicting interests. A 19% reduction in the energy drawn from the power grid is observed over the course of a 24 h period when compared with a first-come-first-served allocation method. This results in a greater reduction in CO 2 emissions of 22% by considering the power grid's make-up at each time interval. Furthermore, a 42% reduction in CO 2 emissions is achieved compared to a system without local renewable energy integration. By varying the weights assigned to the players’ goals, the method can reduce overall demand at peak times and produce a smoother demand profile. System fairness is shown to improve with an average Gini coefficient reduction of 4.32%.
Citation
Humfrey, H., Sun, H., & Jiang, J. (2019). Dynamic Charging of Electric Vehicles Integrating Renewable Energy: A Multi-Objective Optimisation Problem. IET Smart Grid, 2(2), 250-259. https://doi.org/10.1049/iet-stg.2018.0066
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 21, 2019 |
Online Publication Date | Feb 21, 2019 |
Publication Date | Jun 30, 2019 |
Deposit Date | Feb 21, 2019 |
Publicly Available Date | Feb 21, 2019 |
Journal | IET Smart Grid |
Print ISSN | 2515-2947 |
Electronic ISSN | 2515-2947 |
Publisher | Institution of Engineering and Technology (IET) |
Peer Reviewed | Peer Reviewed |
Volume | 2 |
Issue | 2 |
Pages | 250-259 |
DOI | https://doi.org/10.1049/iet-stg.2018.0066 |
Public URL | https://durham-repository.worktribe.com/output/1307534 |
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Copyright Statement
This is an open access article published by the IET under the Creative Commons Attribution -NonCommercial License (http://creativecommons.org/licenses/by-nc/3.0/)
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