Comparative Evaluation of Electrical and Calorimetric Methods to Estimate Core Loss in Powder Cores

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: 2019/05/01

タイトル(英語): Comparative Evaluation of Electrical and Calorimetric Methods to Estimate Core Loss in Powder Cores

著者名: Yuki Ishikura (Murata Manufacturing Co., Ltd./Nagoya University), Jun Imaoka (Nagoya University), Mostafa Noah (Nagoya University), Masayoshi Yamamoto (Nagoya University)

著者名(英語): Yuki Ishikura (Murata Manufacturing Co., Ltd./Nagoya University), Jun Imaoka (Nagoya University), Mostafa Noah (Nagoya University), Masayoshi Yamamoto (Nagoya University)

キーワード: powder core，core loss，electrical methods，calorimetric methods，relative permeability

要約(英語): The utilization of powder cores for many power electronic applications has drawn a significant amount of attention owing to their attractive magnetic properties. However, because of their low relative permeability characteristics, a precise measurement of the core loss is very difficult to obtain. Imprecise estimation of the core loss may lead to an inaccurate thermal design of power converters. Measuring and calculating the accurate value of the core loss allows the circuit designer to design a more efficient system. This paper discusses the revalidation of electrical measurement by comparing the electrical method with the calorimetric method in powder cores. The calorimetric method is one of the most promising methods to accurately measure the core loss; however, it is time consuming. A difference less than 10% has been reported for the core loss measurement error while comparing the electrical method and the calorimetric method in various conditions. These results indicate that the electrical method using the B-H analyzer is effective for measuring the core losses in some conditions for powder cores. Along with the theoretical discussion, simulation and experimental tests are also conducted.

本誌: IEEJ Journal of Industry Applications Vol.8 No.3 （2019） Special Issue on “IPEC-Niigata 2018”

本誌掲載ページ: 386-393 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/8/3/8_386/_article/-char/ja/