電力変換回路向け高誘電率系セラミックコンデンサの損失評価

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: 2021/01/01

タイトル(英語): Loss Evaluation of High-Dielectric-Constant-Type Ceramic Capacitors Used in Power Converters

著者名: 武田　友美佳（東京都立大学 大学院 システムデザイン研究科 電子情報システム工学域），清水　敏久（東京都立大学 大学院 システムデザイン研究科 電子情報システム工学域）

著者名(英語): Yumika Takeda (Tokyo Metropolitan University), Toshihisa Shimizu (Tokyo Metropolitan University)

キーワード: B-Hアナライザ，コンデンサ，損失評価，受動素子　　B-H analyzer，capacitor，loss evaluation，passive element

要約(英語): To increase the power density of power converters, it is crucial to not only utilize SiC and GaN power devices but also to reduce loss and volume of the passive components. High-dielectric-constant-type ceramic capacitors having high current capacity with small volume are good candidates to be used in high-frequency and high-power-density converters. In terms of a practical designing process, accurate evaluation of the loss characteristics of passive components is critical. However, accurate loss evaluation of ceramic capacitors under practical operating conditions, such as nonsinusoidal high-current conditions, has not been reported. In this study, the loss characteristics of a high-dielectric-constant-type ceramic capacitor are measured by a custom-developed capacitor loss analyzer. As a result of extracting the characteristics of loss from the measurement results, it is suggested that the loss of the sample is dominated by dielectric loss. A new loss calculation method is also studied.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.141 No.1 （2021）

本誌掲載ページ: 78-85 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/141/1/141_78/_article/-char/ja/