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Analysis and experimental verification of a single-switch high-voltage gain ZCS DC-DC converter


Hassan, W and Lu, DD-C and Xiao, W, Analysis and experimental verification of a single-switch high-voltage gain ZCS DC-DC converter, IET Power Electronics, 12, (8) pp. 2146-2153. ISSN 1755-4535 (2019) [Refereed Article]

Copyright Statement

© The Institution of Engineering and Technology 2019

DOI: doi:10.1049/iet-pel.2019.0076


This study proposes and analyses the integration of soft-switching technique with a single switch, non-isolated, coupled inductor DC–DC converter to achieve high efficiency and high step-up conversion ratio. The topology optimally integrates the coupled inductor and soft-switching technique using a parallel LC resonant tank circuit to maintain zero-current switching (ZCS) for on/off switching. The leakage inductance of the coupled inductor alleviates the reverse-recovery issue of diodes, and diodes can operate under ZCS condition. Moreover, the converter operates in a lower frequency range due to high step-up voltage gain. The principle of operation and steady-state analyses of the proposed converter are presented. A prototype validates the theoretical analysis and demonstrates a higher peak efficiency of 96.43% than the corresponding hard-switched converter.

Item Details

Item Type:Refereed Article
Keywords:power converters, DC microgrids, renewable energy
Research Division:Engineering
Research Group:Electronics, sensors and digital hardware
Research Field:Power electronics
Objective Division:Energy
Objective Group:Energy efficiency
Objective Field:Industrial energy efficiency
UTAS Author:Hassan, W (Dr Waqas Hassan)
ID Code:149218
Year Published:2019
Web of Science® Times Cited:12
Deposited By:Engineering
Deposited On:2022-03-17
Last Modified:2022-04-21

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