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Study on wireless power transmission considering polarization and position

Research Project

Project/Area Number 17K06329
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Power engineering/Power conversion/Electric machinery
Research InstitutionNational Institute of Technology, Toyota College

Principal Investigator

Andoh Hiroya  豊田工業高等専門学校, 情報工学科, 教授 (30212674)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywordsワイヤレス電力伝送 / 偏波 / 電界結合 / 磁界結合 / S行列 / 位相 / kQ積 / 最大電力伝送効率 / 最大伝送効率 / Sパラメータ / インピーダンス整合 / 共鳴方式 / 誘導性結合型共振回路 / 容量性結合型共鳴方式 / マイクロ波 / 指向性アンテナ / 移相器 / 0dBカプラ / ミリ波 / 無線給電 / 偏波面 / GPS / 電力伝送
Outline of Final Research Achievements

In order to obtain high efficiency for wireless power system, it is important to consider the coupling of the electromagnetic fields on the transmitter and the receiver, match the planes of polarization, and improve the transfer efficiency. The S-matrix of a pair of series resonant circuits coupled via a magnetic field and the S-matrix of a pair of parallel resonant circuits coupled via an electric field are essentially the same, including three essential parameters. These important circuit parameters have also been shown to provide matching conditions on the transmitter, matching conditions on the receiver, and conditions for maximizing transmission efficiency. We also clarified how to obtain matching conditions and maximum power transfer efficiency from kQ-products by drawing a diagram with a ruler and compass.

Academic Significance and Societal Importance of the Research Achievements

磁界結合型直列共振回路のS行列が「kQ積」と「送電側でのポートインピーダンスと共振回路内の抵抗の比」と「受電側でのポートインピーダンスと共振回路内の抵抗の比」で構成され,電界結合型並列共振回路のS行列が「kQ積」と「送電側でのポートアドミタンスと共振回路内のコンダクタンスの比」と「受電側でのポートアドミタンスと共振回路内のコンダクタンスの比」で構成され,送電側での整合条件,受電側での整合条件,電力伝送効率を最大化させるための条件がこれらの量を用いて求められるという知見を得た。また,定規とコンパスを用いて,作図により,kQ積から整合条件や最大電力伝送効率を求められることを明らかにした。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (10 results)

All 2021 2020 2019 2018 2017

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Noise Floor Reduction in Frequency Delta-Sigma Modulation Microphone Sensors2021

    • Author(s)
      Koichi Maezawa, Masayuki Mori, and Hiroya Andoh
    • Journal Title

      Sensors, MDPI

      Volume: 21 Pages: 3470-3470

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Study on impedance matching and maximum wireless power transfer efficiency of circuits with resonant coupling based on simplified <i>S</i>-matrix2019

    • Author(s)
      Andoh Hiroya, Tsuzuki Keita, Oikawa Dai, Sugiura Toko, Tsukamoto Takehiko, Maezawa Koichi
    • Journal Title

      IEICE Electronics Express

      Volume: 16 Issue: 11 Pages: 20190156-20190156

    • DOI

      10.1587/elex.16.20190156

    • NAID

      130007661786

    • ISSN
      1349-2543
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] T-Type Equivalent Circuit of On-Chip Microstrip Line With Magnetic Film-Type Noise Suppressor2018

    • Author(s)
      Muroga Sho、Endo Yasushi、Takamatsu Masanari、Andoh Hiroya
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 54 Issue: 6 Pages: 8001204-8001204

    • DOI

      10.1109/tmag.2018.2818119

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Impedance matching based on simplified S-matrix for maximizing wireless power transfer efficiency2020

    • Author(s)
      H.Andoh, K.Tsuzuki, D.Oikawa, T.Sugiura, T.Tsukamoto, K.Maezawa
    • Organizer
      International Conference on Engineering and Industrial Technology 2020, P86-T4A
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 磁界結合共鳴方式電力伝送系のSパラメータと最大伝送効率2019

    • Author(s)
      安藤浩哉、都築啓太、及川大、杉浦藤虎、塚本武彦、前澤宏一
    • Organizer
      2019年電子情報通信学会総合大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 磁性膜を配置したMSLの回路定数の計測と特性解析2018

    • Author(s)
      室賀翔, 遠藤恭, 安藤浩哉, 田中元志
    • Organizer
      電気学会全国大会講演論文集
    • Related Report
      2017 Research-status Report
  • [Presentation] 災害救助用ロボット実現に向けたマイクロ波無線電力伝送マルチコプタ中継システムの損失に関する評価2018

    • Author(s)
      安原裕登, 河合祐弥, 大島正彦, 井上真澄, 安藤浩哉
    • Organizer
      電子情報通信学会大会講演論文集
    • Related Report
      2017 Research-status Report
  • [Presentation] 分布結合方式を用いた移相器の開発2018

    • Author(s)
      伊藤健吾, 安藤浩哉
    • Organizer
      高等専門学校第3ブロック専攻科研究フォーラム
    • Related Report
      2017 Research-status Report
  • [Presentation] THz帯域を目指した新構造可変位相シフタ2017

    • Author(s)
      前澤宏一, 中野大輔, 森雅之, 石井仁, 安藤浩哉
    • Organizer
      電子情報通信学会技術研究報告
    • Related Report
      2017 Research-status Report
  • [Presentation] T-Type Equivalent Circuit Analysis of On-Chip Lines with Magnetic Film-type Noise Suppressor2017

    • Author(s)
      Sho Muroga, Yasushi Endo, Masanari Takamatsu, Hiroya Andoh
    • Organizer
      The 4th International Symposium on Advanced Magnetic Materials and Applications
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2022-01-27  

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