エネルギー・資源学会論文誌
Online ISSN : 2433-0531
ISSN-L : 2433-0531
研究論文
日走行距離分布と電気自動車の電池容量を考慮した急速充電頻度の評価
山田 哲 秋澤 淳
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ジャーナル フリー

2022 年 43 巻 3 号 p. 113-119

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Electric vehicle (EV) is expected to be one of the means to reduce the CO2 emission in transport sector. Due to the extension of the cruising distance of EVs, the battery capacity of EVs is increasing year by year. However, it is necessary to maintain the charging facility on the route to the destination for the spread of EVs. A high-power (e.g.50kW) of DC type, which is called a quick charger (QC) is generally used for the charging on the route. The objective of this study is to evaluate the frequency of the quick charging considering the distribution of the daily travel distance and the battery capacity of EVs. This study investigates how the charging frequency is influenced by the battery capacity and other factors. A model was developed to observe the charging behavior of various EVs thought out a year with a given interval of QCs. The results show that the frequency of the quick charging does not change a lot when the battery capacity is more than a certain level. The monthly charging frequency is once or less when the initial State of Charge(SoC) is enough high with the battery capacity of 30 kWh or larger.

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