| Presentation | 2019-03-07 Efficiency Improvement of Bi-directional Inductive Power Transfer System by Adjusting The Length of Dead Time Ryosuke Ota, Nobukazu Hoshi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | There is a case that snubber capacitors are connected in parallel to switching devices for applying soft switching technique to inductive power transfer (IPT) systems. In this case, loss is caused by the wasteful freewheeling current during the dead-time when the dead-time length is not set to the appropriate value at the operating condition and to the capacitance of snubber capacitors. However, in most of the conventional systems, the dead-time length is constant. The reason is that the relationship between the dead-time length required for switching and the IPT systems has not been clarified. Therefore, in this paper, this relationship is clarified. In addition, the adjustment method for the dead-time length is proposed and the efficiency of the system is improved. As a result, by applying the proposed method, the efficiency of the system was improved by 0.7 pt in the experiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Bi-directional / Wireless power transfer / Efficiency improvement / Dead-time / Gate driver / Soft switching |
| Paper # | EE2018-60 |
| Date of Issue | 2019-02-28 (EE) |
| Conference Information | |
| Committee | EE / IEE-SPC |
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| Conference Date | 2019/3/7(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tadatoshi Babasaki(NTT Facilities) / 船渡 寛人(宇都宮大学) |
| Vice Chair | Keiichi Hirose(NTT Facilities) / Tadashi Suetsugu(Fukuoka Univ.) / 藤井 幹介(富士電機) |
| Secretary | Keiichi Hirose(Sojo Univ.) / Tadashi Suetsugu(Nagasaki Inst. of Applied Science) / 藤井 幹介(長岡技術科学大学) |
| Assistant | Takashi Matsushita(NTT-F) / Tetsuya Oshikata(ShinDengen) / Yuu Yonezawa(Fujitsu Lab.) / 図子 祐輔(日産自動車) / 高見 弘(芝浦工業大学) |
| Paper Information | |
| Registration To | Technical Committee on Energy Engineering in Electronics and Communications / Technical Meeting on Semiconductor Power Converter |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Efficiency Improvement of Bi-directional Inductive Power Transfer System by Adjusting The Length of Dead Time |
| Sub Title (in English) | |
| Keyword(1) | Bi-directional |
| Keyword(2) | Wireless power transfer |
| Keyword(3) | Efficiency improvement |
| Keyword(4) | Dead-time |
| Keyword(5) | Gate driver |
| Keyword(6) | Soft switching |
| 1st Author's Name | Ryosuke Ota |
| 1st Author's Affiliation | Tokyo University of Science(TUS) |
| 2nd Author's Name | Nobukazu Hoshi |
| 2nd Author's Affiliation | Tokyo University of Science(TUS) |
| Date | 2019-03-07 |
| Paper # | EE2018-60 |
| Volume (vol) | vol.118 |
| Number (no) | EE-482 |
| Page | pp.pp.13-18(EE), |
| #Pages | 6 |
| Date of Issue | 2019-02-28 (EE) |