Determination of Limits on Air Gap and Efficiency for Wireless Power Transfer via Magnetic Resonant Coupling by Using Equivalent Circuit

• Imura Takehiro

  Graduate School of Frontier Sciences, The University of Tokyo

• Hori Yoichi

  Graduate School of Frontier Sciences, The University of Tokyo

Bibliographic Information

Other Title

• 等価回路から見た磁界共振結合におけるワイヤレス電力伝送距離と効率の限界値に関する研究
• トウカ カイロ カラ ミタ ジカイ キョウシン ケツゴウ ニ オケル ワイヤレス デンリョク デンソウ キョリ ト コウリツ ノ ゲンカイチ ニ カンスル ケンキュウ

Abstract

Recently, there has been considerable progress in wireless power transfer technology. The use of magnetic resonant coupling has resulted in a large air gap and high efficiency. So far, this technology has been studied by considering an equivalent circuit. However, the limits on the air gap and efficiency are not specified by the equivalent circuit. This paper proposes equations that specify the limits on the air gap and efficiency for wireless power transfer via magnetic resonant coupling. Moreover, circuit conditions that are required to achieve a large air gap and high efficiency are proposed.

Journal

• IEEJ Transactions on Industry Applications

  IEEJ Transactions on Industry Applications 130 (10), 1169-1174, 2010

  The Institute of Electrical Engineers of Japan

Keywords

• wireless
• power transfer
• resonance
• magnetic coupling
• air gap

Details

• CRID: 1390282679634752640
• NII Article ID: 10026694463
• NII Book ID: AN10012320
• DOI: 10.1541/ieejias.130.1169
• BIBCODE: 2010IJTIA.130.1169I
• ISSN: 13488163
• ISSN: 09136339
• NDL BIB ID: 10832979
• Web Site: http://id.ndl.go.jp/bib/10832979
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10832979
• Web Site: http://www.jstage.jst.go.jp/article/ieejias/130/10/130_10_1169/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed