電気自動車の搭載電池の大容量化と急速充電器の高出力化によるピーク負荷への影響

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2023/02/01

タイトル(英語): Impact of Larger Capacity of EV Batteries and Higher Output of Quick Chargers on Charging Peak Load

著者名: 高木　雅昭（（一財）電力中央研究所 グリッドイノベーション研究本部），池谷　知彦（（一財）電力中央研究所）

著者名(英語): Masaaki Takagi (Grid Innovation Research Laboratory, Central Research Institute of Electric Power Industry), Tomohiko Ikeya (Central Research Institute of Electric Power Industry)

キーワード: 電気自動車，蓄電池，急速充電器，ピーク負荷，交通シミュレータ　　electric vehicle，battery，quick charger，peak load，traffic simulator

要約(英語): Large-scale introduction of electric vehicles puts an electric load to the power system. Recently, the capacities of on-board batteries and the outputs of quick chargers have been increasing. Increase in battery capacity allows EV owners to charge more freely; however, the charging may concentrate at a certain time such as on Friday afternoon before a weekend, because EVs travel relatively long distance on weekend. Therefore, we evaluate the impact on the peak load, under large capacity batteries, high power quick chargers, and simultaneous charging. Charging threshold is defined as follows: when a state of charge (SOC) of an EV falls below the charging threshold, the EV goes to a quick charging station to charge. We set up cases that the charging thresholds are raised on Friday afternoon to prepare for EV use on a weekend.Through the analysis targeting Osaka Prefecture, we obtained following findings: (1) the differences in battery capacity and charger output have a small impact on the peak loads; (2) as for the charging threshold, the value itself has a small impact on the peak load, but if the charging threshold changes at a specific time, the impact is large; (3) the larger the charge threshold is raised on Friday afternoon, the larger the peak load.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.143 No.2 （2023） 特集：令和4年電力・エネルギー部門大会

本誌掲載ページ: 58-66 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/143/2/143_58/_article/-char/ja/