Development of reservation recommendation algorithms for charging electric vehicles in smart-grid cities

Electric vehicles (EVs) have become one of the most important means of transportation recently. So far, the research related to EVs has mainly focused on battery charging technique and battery management. Since the infrastructure for EV services in Jeju is in the inchoate stage, more various kinds of research works related to EV charging services should be performed. In this paper, we propose new reservation recommendation algorithms for charging EVs while traveling, especially in Jeju-do, to prepare for EV charging reservation systems in the near future. In our proposed algorithms, we select charging stations based on distance and route. When we recommend alternative charging stations, we provide 3 possible stations such as (i) the desired amount of battery without waiting time, (ii) the desired amount of battery with waiting time, and (iii) the limited amount of battery with waiting time. We also describe how to manage the time slots for scheduling the EVs which want to reserve charging. © 2014 SERSC.