Presentation 2015-06-12
Real-time Coupling Coefficient Estimation and Maximum Efficiency Control on Dynamic Wireless Power Transfer Using Secondary DC-DC Converter
Daita Kobayashi, Takehiro Imura, Yoichi Hori,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Maximum efficiency control by changing the secondary voltage of using a DC-DC converter was introduced. However, the control method has not been used for dynamic wireless power transfer system where coupling coefficient changes drastically. The considerations about dynamics of the transmitting circuit and coupling coefficient are necessary in dynamic wireless power transfer system. In this paper, a simple method of coupling coefficient estimation with RLS (Recursive least squares) filter and maximum efficiency control are proposed. The experimental results of dynamic maximum efficiency control are provided and they indicate the effectiveness of the proposed control in a real dynamic wireless power transfer system for EVs.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Dynamic Wireless Power Transfer / Magnetic Resonance Coupling / Coupling Coefficient Estimation / DC-DC converter
Paper # WPT2015-23
Date of Issue 2015-06-05 (WPT)

Conference Information
Committee WPT
Conference Date 2015/6/12(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Univ. of Tokyo
Topics (in Japanese) (See Japanese page)
Topics (in English) Wireless Power Transfer, Electric Vehicle Technology, etc
Chair Naoki Shinohara(Kyoto Univ.)
Vice Chair
Secretary (Kagoshima Univ.)
Assistant Takashi Hikagae(Hokkaido Univ.) / Tsunayuki Yamamoto(Yamaguchi Univ.)

Paper Information
Registration To Technical Committee on Wireless Power Transfer
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Real-time Coupling Coefficient Estimation and Maximum Efficiency Control on Dynamic Wireless Power Transfer Using Secondary DC-DC Converter
Sub Title (in English)
Keyword(1) Dynamic Wireless Power Transfer
Keyword(2) Magnetic Resonance Coupling
Keyword(3) Coupling Coefficient Estimation
Keyword(4) DC-DC converter
1st Author's Name Daita Kobayashi
1st Author's Affiliation The University of Tokyo(Univ. of Tokyo)
2nd Author's Name Takehiro Imura
2nd Author's Affiliation The University of Tokyo(Univ. of Tokyo)
3rd Author's Name Yoichi Hori
3rd Author's Affiliation The University of Tokyo(Univ. of Tokyo)
Date 2015-06-12
Paper # WPT2015-23
Volume (vol) vol.115
Number (no) WPT-82
Page pp.pp.13-18(WPT),
#Pages 6
Date of Issue 2015-06-05 (WPT)