| Presentation | 2023-01-19 Current Balancing Three-Phase Interleaved Resonant Converter with 1.5x Step-Up Conversion Ratio for High-Voltage EV Batteries Yuto Fujii, Masatoshi Uno, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Voltages of batteries of electric vehicles (EVs) are increasing to 600?800 V. Resonant converters with fixed 1.5x step-up ratio have been proposed as on-board converters to utilize existing 500 V chargers. Meanwhile, multi-phase interleaved converters are known to enhance input/output current capacities for large current during quick charging. However, additional current sensors and feedback control loops are necessary to actively balance multiple phase currents, resulting in increased system cost. This paper proposes a passive current balancing three-phase interleaved resonant converter with 1.5x step-up ratio. Phase currents in the proposed converter are passively balanced thanks to the charge conservation of capacitors. Furthermore, zero-voltage switching (ZVS) achieves high efficiency. The experimental verification using a prototype demonstrated the passive current balancing capability. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | EV on-board charger / High voltage battery / Resonant converter / Current balance / Interleaved converter |
| Paper # | EE2022-32 |
| Date of Issue | 2023-01-12 (EE) |
| Conference Information | |
| Committee | EE |
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| Conference Date | 2023/1/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyushu Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yoshiyasu Nakashima(NXTEC) |
| Vice Chair | Hiroo Sekiya(Chiba Univ.) / Hiroaki Kusawake(JAXA) |
| Secretary | Hiroo Sekiya(Aichi Inst. of Tech.) / Hiroaki Kusawake(Nagasaki Inst. of Applied Science) |
| Assistant | Yuu Yonezawa(Nagoya Univ.) / Yudai Furukawa(Fukuoka Univ.) / Kazufumi Yuasa(NTT Facilities) |
| Paper Information | |
| Registration To | Technical Committee on Energy Engineering in Electronics and Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Current Balancing Three-Phase Interleaved Resonant Converter with 1.5x Step-Up Conversion Ratio for High-Voltage EV Batteries |
| Sub Title (in English) | |
| Keyword(1) | EV on-board charger |
| Keyword(2) | High voltage battery |
| Keyword(3) | Resonant converter |
| Keyword(4) | Current balance |
| Keyword(5) | Interleaved converter |
| 1st Author's Name | Yuto Fujii |
| 1st Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| 2nd Author's Name | Masatoshi Uno |
| 2nd Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| Date | 2023-01-19 |
| Paper # | EE2022-32 |
| Volume (vol) | vol.122 |
| Number (no) | EE-343 |
| Page | pp.pp.12-16(EE), |
| #Pages | 5 |
| Date of Issue | 2023-01-12 (EE) |