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Paper Abstract and Keywords
Presentation 2023-01-19 10:25
Current Balancing Three-Phase Interleaved Resonant Converter with 1.5x Step-Up Conversion Ratio for High-Voltage EV Batteries
Yuto Fujii, Masatoshi Uno (Ibaraki Univ.) EE2022-32
Abstract (in Japanese) (See Japanese page) 
(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) 
(in English) EV on-board charger / High voltage battery / Resonant converter / Current balance / Interleaved converter / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 343, EE2022-32, pp. 12-16, Jan. 2023.
Paper # EE2022-32 
Date of Issue 2023-01-12 (EE) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EE2022-32

Conference Information
Committee EE  
Conference Date 2023-01-19 - 2023-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EE 
Conference Code 2023-01-EE 
Language Japanese 
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  
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Keyword(7)  
Keyword(8)  
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.)
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Speaker Author-1 
Date Time 2023-01-19 10:25:00 
Presentation Time 25 minutes 
Registration for EE 
Paper # EE2022-32 
Volume (vol) vol.122 
Number (no) no.343 
Page pp.12-16 
#Pages 5 
Date of Issue 2023-01-12 (EE) 

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