Presentation 2022-04-15
Design of a Magnetic Field Leakage Canceller based on Magnetic Dipole Moments for Inductive Power Transfer Systems
Hirofumi Ohzeki, Daisuke Kobuchi, Yoshiaki Narusue, Hiroyuki Morikawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) With the development of wireless power transmission systems and their increasing transferred power, magnetic field leakage cancellation mechanisms have become indispensable from the viewpoints of human protection and electromagnetic compatibility. In this paper, we propose a magnetic field leakage canceller which consists only of a loop coil and a capacitor for inductive power transfer systems by modeling the magnetic field leakage generated by the transmitter and receiver based on the magnetic dipole moment. The main advantage of the proposed canceller is that it is independent of the structure of the transmitter and receiver. Electromagnetic field simulations and measurements were carried out to validate the proposed magnetic field leakage canceler. It was confirmed that the magnetic field leakage can be reduced up to 24.8 dB in the simulations and up to 12.64 dB in measurements.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Wireless power transfer / magnetic field leakage / electromagnetic compatibility
Paper # WPT2022-4,MW2022-4
Date of Issue 2022-04-08 (WPT, MW)

Conference Information
Committee MW / WPT
Conference Date 2022/4/15(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English) Wireless Power Transfer, Microwave
Chair Noriharu Suematsu(Tohoku Univ.) / Toshio Ishizaki(Ryukoku Univ.)
Vice Chair Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Hideyuki Nakamizo(Mitsubishi Electric)
Secretary Tadashi Kawai(Saitama Univ.) / Kensuke Okubo(Toshiba) / Hideyuki Nakamizo(Okayama Univ.) / (Tokyo Univ. of Science)
Assistant Naoki Hasegawa(Softbank) / Kosuke Katayama(Waseda Univ.) / Yoshiaki Narusue(Univ. of Tokyo) / Yuki Tanaka(Panasonic)

Paper Information
Registration To Technical Committee on Microwaves / Technical Committee on Wireless Power Transfer
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Design of a Magnetic Field Leakage Canceller based on Magnetic Dipole Moments for Inductive Power Transfer Systems
Sub Title (in English)
Keyword(1) Wireless power transfer
Keyword(2) magnetic field leakage
Keyword(3) electromagnetic compatibility
1st Author's Name Hirofumi Ohzeki
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 2022-04-15
Paper # WPT2022-4,MW2022-4
Volume (vol) vol.122
Number (no) WPT-1,MW-2
Page pp.pp.14-17(WPT), pp.14-17(MW),
#Pages 4
Date of Issue 2022-04-08 (WPT, MW)