複数バッテリを有する電動車両に適した部分絶縁マルチポートコンバータ

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: 2021/11/01

タイトル(英語): Multiport Converter Integrating Automatic Current Balancing Interleaved PWM Converter and DAB Converter with Improved Transformer Utilization for Electric Vehicles

著者名: 佐藤　元基（茨城大学工学部），鵜野　将年（茨城大学工学部），多田　喜耶（茨城大学工学部）

著者名(英語): Motoki Sato (College of Engineering, Ibaraki University), Masatoshi Uno (College of Engineering, Ibaraki University), Yoshiya Tada (College of Engineering, Ibaraki University)

キーワード: インタリーブPWMコンバータ，マルチポートコンバータ，フライングキャパシタ，DABコンバータ　　interleaved PWM converter，multiport converter，flying capacitor，DAB converter

要約(英語): Multiport converters (MPCs) that integrate multiple converters into a single unit have been proposed to reduce the converter count in electric vehicle power systems where multiple batteries are employed. However, conventional MPCs comprising a dual active bridge (DAB) converter and an interleaved PWM converter require feedback control loops and current sensors to balance the inductor currents. Furthermore, the transformer utilization decreases as the duty cycle of the interleaved PWM converter drifts away from 0.5. This paper proposes a novel MPC that integrates a DAB converter and an interleaved PWM converter with an automatic current balancing capability and improved transformer utilization. A 1-kW prototype with a half-bridge or full-bridge circuit on the high-voltage side was built for the experimental verification, and loss analysis was performed. The results demonstrated the automatic current balancing capability, improved transformer utilization, and flexible power exchange among three ports.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.141 No.11 （2021）

本誌掲載ページ: 903-911 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/141/11/141_903/_article/-char/ja/