Presentation 2020-12-08
Communication-Less Receiver-Side Resonant Frequency Tuning for Wireless Power Transfer Using Magnetic Resonant Coupling
Kentaro Matsuura, Daisuke Kobuchi, Yoshiaki Narusue, Hiroyuki Morikawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The performance of the wireless power transfer (WPT) system using magnetic resonant coupling (MRC) is degraded by resonant frequency shift. In this paper, we propose a communication-less receiver-side resonant frequency tuning method using a variable reactor based on a Class-D power inverter. The proposed method can compensate for the residual reactance in the receiver without any communication between the transmitter and receiver. The effectiveness of the proposed method is evaluated through circuit simulations assuming a kHz band WPT system for mobile device charging. It is confirmed that the resonant frequency tuning can be achieved by controlling the variable reactor to maximize the received power at the load.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Wireless power transfer / magnetic resonant coupling / resonant frequency tuning / reactance compensation
Paper # WPT2020-26
Date of Issue 2020-12-01 (WPT)

Conference Information
Committee WPT
Conference Date 2020/12/8(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Communication Systems, etc.
Chair Toshio Ishizaki(Ryukoku Univ.)
Vice Chair
Secretary (Nagasaki Univ.)
Assistant Osamu Kagaya(AGC) / Yoshiaki Narusue(Univ. of Tokyo)

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) Communication-Less Receiver-Side Resonant Frequency Tuning for Wireless Power Transfer Using Magnetic Resonant Coupling
Sub Title (in English)
Keyword(1) Wireless power transfer
Keyword(2) magnetic resonant coupling
Keyword(3) resonant frequency tuning
Keyword(4) reactance compensation
1st Author's Name Kentaro Matsuura
1st Author's Affiliation The University of Tokyo(UTokyo)
2nd Author's Name Daisuke Kobuchi
2nd Author's Affiliation The University of Tokyo(UTokyo)
3rd Author's Name Yoshiaki Narusue
3rd Author's Affiliation The University of Tokyo(UTokyo)
4th Author's Name Hiroyuki Morikawa
4th Author's Affiliation The University of Tokyo(UTokyo)
Date 2020-12-08
Paper # WPT2020-26
Volume (vol) vol.120
Number (no) WPT-278
Page pp.pp.1-6(WPT),
#Pages 6
Date of Issue 2020-12-01 (WPT)