Presentation 2019-07-19
Radiated and Conducted Emissions Reduction for High Power WPT Systems Using Spread Spectrum
Koji Ogura, Tetsu Shijo, Masatoshi Suzuki, Yasuhiro Kanekiyo, Kazuhiro Inoue, Shuichi Obayashi, Masaaki Ishida,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) EMI increases with high power over 100 kW WPT systems. Therefore, the reduction of EMI is very important. In this report, the EMI reduction effect is evaluated experimentally by using the opposite phase cancellation and spread spectrum in combination. The effects of opposite phase cancellation and spread spectrum do not decrease even when they are combined, and an added effect is obtained. The effect of spread spectrum is obtained around -8 to -10 dB, and we have prospects that radiation and conducted emissions will meet regulatory specification values.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Wireless Power Transfer / WPT / EMI Reduction / Opposite Phase Cancellation / Spread Spectrum
Paper # EMCJ2019-34,EMD2019-15
Date of Issue 2019-07-12 (EMCJ, EMD)

Conference Information
Committee EMCJ / EMD / WPT
Conference Date 2019/7/19(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kensei Oh(Nagoya Inst. of Tech.) / Shinichi Wada(TMC System) / Masaharu Takahashi(Chiba Univ.)
Vice Chair Atsuhiro Nishikata(Tokyo Inst. of Tech.) / Yoshiki Kayano(Univ. of Electro-Comm.)
Secretary Atsuhiro Nishikata(Tokyo Inst. of Tech.) / Yoshiki Kayano(Denso) / (Fuji Electric)
Assistant Nami Sasaki(Seiwa Electric MFG) / Hiroyoshi Shida(Tokin) / Sho Muroga(Akita Univ.) / Yuichi Hayashi(NAIST) / Nozomi Haga(Gunma Univ.) / Osamu Kagaya(AGC)

Paper Information
Registration To Technical Committee on Electromagnetic Compatibility / Technical Committee on Electromechanical Devices / Technical Committee on Wireless Power Transfer
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Radiated and Conducted Emissions Reduction for High Power WPT Systems Using Spread Spectrum
Sub Title (in English)
Keyword(1) Wireless Power Transfer
Keyword(2) WPT
Keyword(3) EMI Reduction
Keyword(4) Opposite Phase Cancellation
Keyword(5) Spread Spectrum
Keyword(6)
1st Author's Name Koji Ogura
1st Author's Affiliation Toshiba Corporation(Toshiba Corp.)
2nd Author's Name Tetsu Shijo
2nd Author's Affiliation Toshiba Corporation(Toshiba Corp.)
3rd Author's Name Masatoshi Suzuki
3rd Author's Affiliation Toshiba Corporation(Toshiba Corp.)
4th Author's Name Yasuhiro Kanekiyo
4th Author's Affiliation Toshiba Corporation(Toshiba Corp.)
5th Author's Name Kazuhiro Inoue
5th Author's Affiliation Toshiba Corporation(Toshiba Corp.)
6th Author's Name Shuichi Obayashi
6th Author's Affiliation Toshiba Corporation(Toshiba Corp.)
7th Author's Name Masaaki Ishida
7th Author's Affiliation Toshiba Corporation(Toshiba Corp.)
Date 2019-07-19
Paper # EMCJ2019-34,EMD2019-15
Volume (vol) vol.119
Number (no) EMCJ-133,EMD-134
Page pp.pp.25-30(EMCJ), pp.25-30(EMD),
#Pages 6
Date of Issue 2019-07-12 (EMCJ, EMD)