Open AccessEfficiency optimisation of ZVS isolated bidirectional DAB converters
Author(s) -
Dung Nguyen Anh,
Chiu HuangJen,
Lin JingYuan,
Hsieh YaoChing,
Liu YuChen
Publication year - 2018
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2017.0723
Subject(s) - converters , dual (grammatical number) , duty cycle , computer science , voltage , scheme (mathematics) , control (management) , half bridge , electronic engineering , control theory (sociology) , engineering , electrical engineering , capacitor , mathematics , art , mathematical analysis , literature , artificial intelligence
This study presents a control method for isolated bidirectional dual‐active‐bridge converters to optimise the efficiency by achieving the zero‐voltage switching (ZVS) in high‐voltage applications, which the switching losses are the major issues. At light‐load condition, the duty control algorithm is proposed to achieve the ZVS for all switches while the triple phase shift with ZVS condition is realised at heavy load condition. The operating principles and the design considerations of the proposed control scheme are analysed in detail. A 2 kW prototype converter is built up and tested to verify the feasibility of the proposed control strategy.