EV搭載バッテリの台形波交流加熱を実現する3レベルフライングキャパシタインバータ

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: 2024/05/01

タイトル(英語): 3-Level Flying Capacitor Inverter with Trapezoidal Wave AC Heating Capability for Automotive Batteries

著者名: 平沼　標雅（茨城大学工学部），鵜野　将年（茨城大学工学部），笹間　裕太（茨城大学工学部）

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

キーワード: 電気自動車，フライングキャパシタ，交流内部加熱，リチウムイオンバッテリ，台形波電流　　electric vehicles，flying capacitor，internal ac heating，lithium-ion batteries，trapezoidal wave current

要約(英語): Lithium-ion batteries (LIBs) in electric vehicles at low temperatures must be properly heated to avoid a decrease in their discharge capability. Internal ac heating techniques utilizing Joule heat generated by ac current flowing through an internal resistance of LIB have been proposed as an efficient and fast heating method. However, traditional internal ac heating techniques that use triangular and sinusoidal waves are not ideal due to their relatively low rms value at a given peak current, which results in a long heating time. This paper proposes a 3-level flying capacitor inverter for reducing heating time. The proposed PWM technique generates trapezoidal wave with a high rms value at a given peak current. Experimental results of a prototype for a 12-cell LIB demonstrated that the proposed trapezoidal wave heating reduced heating time to approximately one-third compared with traditional sinusoidal-wave heating.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.144 No.5 （2024） 特集：2023年産業応用部門大会

本誌掲載ページ: 427-433 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/144/5/144_427/_article/-char/ja/