Loss Reduction in Antenna for Wireless Power Transfer by Magnetic Resonant Coupling: Relation between Inter-wire Capacitance and the Antenna Loss
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20117264
- Paper/Info type
- Other International Conferences
No.2011-39-7264
- Pages
- 1-5(Total 5 p)
- Date of publication
- May 2011
- Publisher
- Others, Unknown
- Language
- English
- Event
- EVTeC'11
Detailed Information
| Category(E) | Wireless Power Transmission |
|---|---|
| Author(E) | 1) Masaki Kato, 2) Takehiro Imura, 3) Toshiyuki Uchida, 4) Yoichi Hori |
| Affiliation(E) | 1) The University of Tokyo, 2) The University of Tokyo, 3) The University of Tokyo, 4) The University of Tokyo |
| Abstract(J) | 電気自動車のワイヤレス給電においては，アンテナ部と給電部のコイルの効率を向上させる事が重要である．本研究では計算と実験を行う事によりアンテナの損失が電気抵抗だけでなく，アンテナ内部の容量によっても引き起こされる事が明らかになった． Translation |
| Abstract(E) | The wireless charging system of electric vehicles will be of high power. Due to environmental problems and the heat emission design of the machines, it is not easy to improve the efficiency of the power transmitting system. While improving the efficiency of the overall system is important, it is especially significant to improve the efficiency of the transmitting and receiving antennas. Improving the antennas is necessary as it accounts for a large part of the overall efficiency and it has strong relation to the transfer characteristics. In this paper, the importance of reducing the antenna loss for high power implementation is discussed. We showed that the antenna losses not only affecting the transfer efficiency but also the maximum power consumed by the load (the available power) by deriving an equation. Through mathematical equations and experiments, we also proved that the antenna loss is caused by both the resistance of the antenna wires and the inter-wire capacitance of the antenna. |
