リチウムイオンバッテリ向け交流加熱インバータを統合した電動車両用Dual Active Bridgeコンバータ

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2021/06/01

タイトル(英語): Experimental Verification of Dual Active Bridge Converter to Integrate AC Heating Inverter for Lithium-Ion Batteries in Electric Vehicles

著者名: 笹間　裕太（茨城大学工学部），鵜野　将年（茨城大学工学部），五十嵐　龍一（茨城大学工学部）

著者名(英語): Yuta Sasama (College of Engineering, Ibaraki University), Masatoshi Uno (College of Engineering, Ibaraki University), Ryuichi Igarashi (College of Engineering, Ibaraki University)

キーワード: dual active bridge（DAB）コンバータ，交流加熱，リチウムイオンバッテリ，低温環境，内部抵抗　　dual active bridge (DAB) converter，ac heating，lithium-ion battery，low temperature，internal resistance

要約(英語): Lithium-ion batteries in electric vehicles must be adequately heated at low temperatures to prevent the decrease in discharge capacity. Therefore, ac heating techniques that use the Joule heat generated by the internal resistance of batteries have been proposed. Although these techniques achieve higher heating efficiency and uniform heating, they require an ac heating inverter to produce ac current, resulting in increased system complexity and cost. In this study, a dual active bridge converter that integrates an inverter for ac heating in electric vehicles is proposed. The proposed converter is derived by sharing two legs of both converters, thus achieving a simplified system and low cost. This converter operates either in the ac heating or power transfer mode. These modes operate at different switching frequencies and are independent of each other. Experimental results of a prototype for a 12-cell battery demonstrated that in addition to the bidirectional power flow, the proposed converter can heat up the 12-cell battery from -11℃ to 0℃ within 10min.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.141 No.6 （2021）

本誌掲載ページ: 453-460 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/ieejias/141/6/141_453/_article/-char/ja/