急速充電所における混雑の実態と充電器増設の効果

—高速道路サービスエリアの利用履歴を用いた検討—

抄録

There were 18 electric vehicles, EV, in average, per quick charger, QC, in Japan as of 2012, and this value may increase by a factor of several dozen by 2020. It is therefore necessary to model and analyze QC service, identify the causes of wait time and provide countermeasures to avoid significant QC congestion and to encourage the spread of QC stations. This research analyzed usage data of a QC installed at an existing service area on expressway, and showed the characteristics of QC demand as distribution functions. QC service was modeled as a queuing problem, and simulations were carried out using derived distribution functions. The results showed that the QC station needs additional charger in the case of daily charging times over 10 times.