Open AccessImproved bidirectional DC/DC converter configuration with ZVS for energy storage system: analysis and implementation
Author(s) -
Subrahmanya Kumar Bhajana Veera Venkata,
Drabek Pavel,
Thumma Rajesh,
Makireddi Ramana
Publication year - 2020
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.2019.1156
Subject(s) - computer science , buck converter , energy storage , power (physics) , buck–boost converter , boost converter , ćuk converter , electronic engineering , forward converter , electrical engineering , engineering , voltage , physics , quantum mechanics
This study proposes a novel design of soft‐switching based bidirectional converter for the applications in energy storage systems. By implementing an additional auxiliary circuit to the conventional non‐isolated converter, the proposed converter inherits better efficiency with minimised turn‐on losses. Moreover, auxiliary switching devices are also soft‐switched. This converter can be operated at high power outputs through ZVS turn‐on operation. The operation principle, design analysis and experimental results are reported to validate its main features in the study. Furthermore, the performance of this converter is analysed on a 1 kW laboratory prototype for both boost and buck modes.