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: 2021/11/01タイトル(英語): Magnetic Characterization of 4μm-thick Steel Made by Continuous Rolling Process for Power Electronic Applications in High Frequency著者名: Nguyen Gia Minh Thao (Toyota Technological Institute), Keisuke Fujisaki (Toyota Technological Institute), Hiroaki Mamiya (National Institute for Materials Science), Syuji Kuroda (National Institute for Materials Science), Yoko Yamabe-Mitarai (National Ins著者名(英語): Nguyen Gia Minh Thao (Toyota Technological Institute), Keisuke Fujisaki (Toyota Technological Institute), Hiroaki Mamiya (National Institute for Materials Science), Syuji Kuroda (National Institute for Materials Science), Yoko Yamabe-Mitarai (National Institute for Materials Science), Norie Motohashi (National Institute for Materials Science)キーワード: 4μm-thick steel，continuous rolling process，high frequency，magnetic characterization，measurement method，ring core要約(英語): This is the first study to experimentally perform the magnetic characterization of 4μm-thick electrical steel sheet based on the sinusoidal excitation technique at high frequencies of up to 1MHz. The steel is made of pure iron, fabricated using a high-precision continuous rolling process, which is a suitable and effective method for mass production. One ring core in which the steel part is appropriately fixed on a plastic cylindrical chassis is fabricated for measurements, whereas another ring core without the steel part is fabricated to serve as a reference. In addition, a method for effectively estimating the magnetic flux density and relative permeability of the steel part in the first ring core from the measured data of the two ring cores is presented as a key contribution of this study. This method can also be applied in the magnetic characterization of other thin steels at high frequencies. The magnetic flux density-field intensity (B-H) curve, relative permeability, and iron loss per weight of the examined 4μm-thick steel are measured and evaluated through experiments. The measured results and Steinmetz approximation indicate that the eddy current loss in the investigated steel is relatively considerable at high frequencies of 500kHz and above.本誌: IEEJ Journal of Industry Applications Vol.10 No.6 （2021） Special Issue on “ICEMS 2020-Hamamatsu”本誌掲載ページ: 731-739 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/10/6/10_21001213/_article/-char/ja/
