Selection Criteria of Capacitors for Flying Capacitor Converters

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2015/03/01

タイトル(英語): Selection Criteria of Capacitors for Flying Capacitor Converters

著者名: Hidemine Obara (Chiba University), Yukihiko Sato (Chiba University)

著者名(英語): Hidemine Obara (Chiba University), Yukihiko Sato (Chiba University)

キーワード: capacitor，flying capacitor converter，multilevel converter，equivalent series resistance (ESR)，power density

要約(英語): Multilevel converters have a number of capacitors as sources of multilevel voltages. The volume of the capacitors should be minimized to realize a high-power-density converter. In this paper, the selection criteria of the capacitors in a flying capacitor converter are investigated. In this type of converter, the required capacitance, consequently, volume of the capacitors are decreased when the PWM carrier frequency is higher. However, there is a limitation on the reduction in the volume due to the temperature increase caused by the power losses in the capacitors when the volume becomes small during high-PWM-frequency operation. On the basis of an investigation including the temperature increase, it is clarified that a capacitor with a high capacitance density is not necessarily the best for the flying capacitor depending on the operating conditions.

本誌: IEEJ Journal of Industry Applications Vol.4 No.2 （2015）

本誌掲載ページ: 105-106 p

原稿種別: 研究開発レター／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/4/2/4_105/_article/-char/ja/