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Feasible Power Control Method with a Low Sampling Frequency for Bidirectional Wireless Power Transfer in Battery-Powered Railway Vehicle Systems

Feasible Power Control Method with a Low Sampling Frequency for Bidirectional Wireless Power Transfer in Battery-Powered Railway Vehicle Systems

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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: 2023/11/01

タイトル(英語): Feasible Power Control Method with a Low Sampling Frequency for Bidirectional Wireless Power Transfer in Battery-Powered Railway Vehicle Systems

著者名: Eita Sato (Graduate of Advanced Science Engineering, Waseda University), Keiichiro Kondo (Graduate of Advanced Science Engineering, Waseda University)

著者名(英語): Eita Sato (Graduate of Advanced Science Engineering, Waseda University), Keiichiro Kondo (Graduate of Advanced Science Engineering, Waseda University)

キーワード: wireless power transfer,single-phase power fluctuation,averaging power,railway vehicle,sampling frequency

要約(英語): Wireless power transfer requires a high operating frequency to ensure an electromotive force owing to the low coupling coefficient caused by a large air gap between coils. Traction inverters and inverters for auxiliary power units in battery-powered railway vehicles, have a switching frequency of 1-5kHz owing to a high-power range. The sampling frequency of the microcontroller is selected based on its switching frequency. As the sampling frequency of a microcontroller is considered feasible if it is several tens of times the switching frequency, this paper proposes a feasible power control method with a low sampling frequency. The proposed control method is a feedback control of the average DC power per operating cycle, which eliminates the influence of single-phase power fluctuations. The controller gain is designed using a Bode diagram. 100-W-class experiments verified its inductance independence and high responsiveness, and full-scale 300-kW-class simulations demonstrated the effectiveness of the proposed power control.

本誌: IEEJ Journal of Industry Applications Vol.12 No.6 (2023)

本誌掲載ページ: 1078-1087 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/12/6/12_23001645/_article/-char/ja/

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