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Paper Abstract and Keywords
Presentation 2025-01-24 09:25
Investigation of a Seamless Switching Control Method for High Power Efficiency Operation of Dual-Active-Bridge DC-DC Converter Across Wide Load Ranges
Takuma Endo (Nagasaki Univ.), Toshiro Hirose (Nishimu), Yuichi Ishihama (MicrNagasaki Univ.ochip), Yoichi Ishizuka (Nagasaki Univ.) EE2024-25
Abstract (in Japanese) (See Japanese page) 
(in English) Dual Active Bridge (DAB) DC-DC converters, one of the bidirectional power converters, have a problem of deteriorating power efficiency at light loads. To solve this problem, triangular current control has been proposed. However, it has a problem that the maximum output power becomes smaller than the conventional control, and it is necessary to switch to the conventional control. During the switching of that control, the shape of the voltage applied to the transformer changes significantly, which may cause transient phenomena. The proposed control method switches between triangular current control at light loads, single-sided PWM control at medium loads, and phase control at heavy loads, thereby achieving high power efficiency in all load ranges and enabling seamless switching during control switching. In the actual device verification, operation checks and power efficiency comparisons were conducted at light, medium, and heavy loads.
Keyword (in Japanese) (See Japanese page) 
(in English) Dual-Active-Bridge (DAB) DC-DC converters / Power Efficiency / Triangular Current Control / single-sided PWM control / phase shift control / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 345, EE2024-25, pp. 36-41, Jan. 2025.
Paper # EE2024-25 
Date of Issue 2025-01-16 (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 EE2024-25

Conference Information
Committee EE  
Conference Date 2025-01-23 - 2025-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EE 
Conference Code 2025-01-EE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigation of a Seamless Switching Control Method for High Power Efficiency Operation of Dual-Active-Bridge DC-DC Converter Across Wide Load Ranges 
Sub Title (in English)  
Keyword(1) Dual-Active-Bridge (DAB) DC-DC converters  
Keyword(2) Power Efficiency  
Keyword(3) Triangular Current Control  
Keyword(4) single-sided PWM control  
Keyword(5) phase shift control  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Takuma Endo  
1st Author's Affiliation Nagasaki University (Nagasaki Univ.)
2nd Author's Name Toshiro Hirose  
2nd Author's Affiliation Nishimu Electronics Industries Co.Ltd (Nishimu)
3rd Author's Name Yuichi Ishihama  
3rd Author's Affiliation Nagasaki University (MicrNagasaki Univ.ochip)
4th Author's Name Yoichi Ishizuka  
4th Author's Affiliation Nagasaki University (Nagasaki Univ.)
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Speaker Author-1 
Date Time 2025-01-24 09:25:00 
Presentation Time 25 minutes 
Registration for EE 
Paper # EE2024-25 
Volume (vol) vol.124 
Number (no) no.345 
Page pp.36-41 
#Pages 6 
Date of Issue 2025-01-16 (EE) 

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