ワイヤレス給電の位置効率分布を代用する等価誘起電圧|Ea|数式分析と中継コイル式2連送電コイル上の受電コイル位置効率分布実証

カテゴリ: 研究会(論文単位)

論文No: EMC25010,SPC25129

グループ名: 【A】基礎・材料・共通部門 電磁環境/【D】産業応用部門 半導体電力変換合同研究会

発行日: 2025/05/27

タイトル(英語): Mathematical Analysis of Induced Voltage |Ea| as Substitute for Positional Efficiency Distribution of Wireless Power Transfer and Demonstration of Positional Efficiency Distribution of Receiving Coil on Repeater Coil Type Two-series Transfer Coil

著者名: 安倍 秀明(エフ3rd mc wptラボ)

著者名(英語): Hideaki Abe(F3rd mc wptLab)

キーワード: ワイヤレス給電|受電コイル位置効率分布|中継コイルアレイ式給電|２次換算等価回路|２次誘起電圧|効率分布等価結合係数|wireless power transfer|secondary coil position efficiency distribution|relay type coil array|secondary converted equivalent circuit|secondary induced voltage|efficiency distribution equivalent coupling factor

要約(日本語): 中継コイルアレイ式での位置効率分布η－ⅹ特性の形状は，設計条件により形を変える。２次換算等価回路の２次誘起電圧|Ea|の数式に，このkが変数項として入ることに着目。限定の共振条件下において多連コイルアレイ式のEaに含まれる効率等価結合係数|kη|－ⅹ特性が，受電コイル位置効率η－ⅹ特性に高い相関を持つことを計算上で既に実証済。今回，中継コイルを持つ２連コイルアレイでの|Ea|の詳細な数式分析を行い，|Ea|－ⅹ特性が，η－ⅹ特性に高い相関を持つことを計算と実験で検証した。_x000D_

要約(英語): Author focus the receiving coil positional efficiency distribution on the transmitting coil of a pair of coils depends on the size of k, and the k is included as a variable term in the formula for the secondary induced voltage Ea at secondary equivalent circuit. Therefore, hypothesized the Ea characteristic has a high correlation with the efficiency characteristic at the receiving coil position x even in the case of a multi-coil array type. This time, analyzed |Ea| in detail using a two-coil array system equipped with a relay coil, and clarified how the distribution shape of positional efficiency changes dynamically depending on the drive frequency f. Based on this, determined the |Ea|-x characteristics at five different frequencies and compared them with the η-x experimental characteristics when the secondary side has series resonance and parallel resonance. As a result, demonstrated the distribution shape of the |Ea|-x characteristic has a high correlation with the η-x characteristic._x000D_

本誌: 2025年5月30日電磁環境/半導体電力変換合同研究会

本誌掲載ページ: 19-24 p

原稿種別: 日本語

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