単相フルブリッジインバータにおける各相に分割配置したDCキャパシタの相間共振電流

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: 2017/06/01

タイトル(英語): Circulating Resonant Current Between Phase-leg DC-link Capacitors for Single-phase Full-Bridge Inverter

著者名: 平尾　高志（首都大学東京），和田　圭二（首都大学東京），清水　敏久（首都大学東京）

著者名(英語): Takashi Hirao (Tokyo Metropolitan University), Keiji Wada (Tokyo Metropolitan University), Toshihisa Shimizu (Tokyo Metropolitan University)

キーワード: DCキャパシタ，寄生インダクタンス，共振電流，スイッチング周波数　　DC-link capacitor，stray inductance，resonant frequency，switching frequency

要約(英語): A design for an inverter circuit configuration of integrated half-bridge modules with focus on the circulating resonant current is clarified in this paper. Although this configuration has the advantages of a small DC-side stray inductance, an analysis of the equivalent circuit suggests that the DC-link capacitor current increases depending on the relationship between the resonant and switching frequencies. This leads to an increase in the capacitor volume. The capacitor current was experimentally investigated under PWM operation at switching frequencies up to 100kHz using SiC-MOSFETs. The experimental results demonstrate that the resonant current is remarkable when the resonant frequency was close to either the fundamental or the third harmonics of the switching frequency. Using the proposed design considering the quality factor and the resonant frequency, the increase in the capacitor current based on the resonant phenomenon can be avoided.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.137 No.6 （2017）

本誌掲載ページ: 501-508 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/137/6/137_501/_article/-char/ja/