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Energies 2016, 9(5), 385; doi:10.3390/en9050385

A Study on Price-Based Charging Strategy for Electric Vehicles on Expressways

School of Electrical Engineering, Southeast University, No. 2 Sipailou, Nanjing 210096, China
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Academic Editor: Michael Gerard Pecht
Received: 28 March 2016 / Revised: 29 April 2016 / Accepted: 5 May 2016 / Published: 19 May 2016
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Abstract

With the large-scale adoption of electric vehicles (EVs) on expressways, the exploration of a guiding-based charging method to effectively adjust interactions between EVs and the fast charging stations (CSs) is urgently needed. This paper proposes a status-of-use (SOU) price-based charging strategy that can motivate users to charge in advance. A queuing model for a CS cluster was established to verify the effectiveness of the strategy, and then a simulation of traveling and charging conditions of 12,000 pure EVs on the road network from 0:00 to 24:00 was performed according to the related data and using the Monte Carlo method, the Floyd-Warshall algorithm, and the queuing algorithm proposed in this paper. Compared to unordered charging (UC), SOU price-based charging can not only reduce the charging cost and waiting time for users, but also increase the utilization ratio of charging facilities in a CS cluster and thus lower their influence on the power grid and expressway traffic. SOU price-based charging can effectively adjust interactions between EVs and CSs. View Full-Text
Keywords: expressway; electric vehicles (EVs); price-based charging; queueing algorithm expressway; electric vehicles (EVs); price-based charging; queueing algorithm
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Chen, L.; Chen, Z.; Huang, X.; Jin, L. A Study on Price-Based Charging Strategy for Electric Vehicles on Expressways. Energies 2016, 9, 385.

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