２方式による３段階段状磁場非接触給電特性の等価性実証と等価結合係数汎用式の導出

カテゴリ: 研究会(論文単位)

論文No: MAG20076

グループ名: 【A】基礎・材料・共通部門 マグネティックス研究会

発行日: 2020/11/19

タイトル(英語): Equivalence Verification of Three-step Stepped Magnetic Field Wireless Power Transfer Characteristics by Two Methods and Derivation of General Formula for Equivalent Coupling Factor

著者名: 安倍 秀明(*)

著者名(英語): Hideaki Abe(*)

キーワード: 非接触給電|階段状磁場|不均一磁場|多重磁気結合|等価結合係数|磁気回路|wireless power transfer|stairs-like magnetic field|non-uniform magnetic field|multiple magnetic coupling coil|equivalent coupling factor|magnetic circuit

要約(日本語): この論文では、 1つのインバータ回路で駆動され、長方形の面に3段階段状磁場を形成したワイヤレス電力伝送について報告する。_x000D_ 磁気結合の基礎に基づき、送電コイルの数、巻数、面積、接続法を変えて仮定した、同じ特性の3段階段状を形成できる２つの方法のしくみを説明する。_x000D_ 階段状磁場特性を評価する基礎指標として、等価結合係数を導出する。試作と実験により等価結合係数分布と、受電電圧分布の等価性が確認できた。２方式共に、同じ等価結合係数の分布を確認した。 受電電圧は、階段の各ステップで明確な電圧差を持ち、ステップ上で

要約(英語): This paper describes wireless power transfer (WPT), which is driven by a single inverter circuit and forms a three-step magnetic field on a rectangular surface. Based on the basics of magnetic coupling, explain two mechanisms that can form a three-step shape with the same characteristics, assuming the number of coils, number of turns, area, and connection method of the power transmission coil. The equivalent coupling factor is derived as a basic index for evaluating the stepwise magnetic field characteristics. As a result, the equivalence between the equivalent coupling factor distribution of the prototype coil and the receiving voltage distribution was confirmed. The distribution of the same equivalent coupling factor was confirmed for all two methods. The received voltage had a clear voltage difference at each step of the stairs, and it was confirmed that a substantially uniform voltage was maintained on the steps, suggesting practicality. Furthermore, the relationship between the equivalent coupling factor and each coupling factor was derived by mathematical formulas. It was confirmed that this general-purpose equation can well estimate the equivalent coupling factor with respect to the number of turns of each coil and the polarity of connection._x000D_ _x000D_

原稿種別: 日本語

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