General Analytical Model of Inductance Variation by EMF-canceling Coil for Inductive Power Transfer System

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: 2019/07/01

タイトル(英語): General Analytical Model of Inductance Variation by EMF-canceling Coil for Inductive Power Transfer System

著者名: Keita Furukawa (Nagaoka University of Technology), Keisuke Kusaka (Nagaoka University of Technology), Jun-ichi Itoh (Nagaoka University of Technology)

著者名(英語): Keita Furukawa (Nagaoka University of Technology), Keisuke Kusaka (Nagaoka University of Technology), Jun-ichi Itoh (Nagaoka University of Technology)

キーワード: active shielding，electromagnetic field，inductive power transfer，multiple magnetic coupling

要約(英語): This paper presents an analytical model and a design criteria for additional windings to reduce electromagnetic field (EMF) generated from inductive power transfer (IPT) systems. In particular, the canceling windings are connected to the main windings with common-mode connection, differential-mode connection, or short-circuited connection. Parameter variation, which may degrade the system efficiency, occurs in the IPT system owing to the unwanted coupling between the main windings and the canceling windings. Therefore, the theoretical analysis of the IPT system considering the canceling windings is conducted to evaluate the effects of the EMF shielding methods on system parameter variation. The calculation results of the system parameters agree with the measurement results in the prototype of the four-winding IPT coils, the error is lower than 5%. The simulation results with a 1-kW prototype IPT system indicate that the magnetic flux density at the distance of 50cm from the bottom of the receiving coils decreases by at most 41% with the differential-mode connection.

本誌: IEEJ Journal of Industry Applications Vol.8 No.4 （2019） Special Issue Ⅰ on “JIASC 2018”　Special Issue Ⅱ on “IPEC-Niigata 2018”

本誌掲載ページ: 660-668 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/8/4/8_660/_article/-char/ja/