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Abstract

This paper proposes a high-efficiency and high conversion gain DC-DC converter to integrate alternative energy sources into DC nanogrid. The proposed configuration takes advantage of the coupled inductor technique to attain high voltage gain and reduced switch voltage stress. The voltage stress on the switch is substantially minimized compared to the high output voltage. Therefore, a low voltage rating switch is employed to enhance conversion efficiency. Furthermore, the coupled inductor utilization eliminates the reverse recovery losses of diodes. The operation principle and steady-state analysis of the proposed converter are elaborated. A prototype is developed to substantiate the experimental performance of the proposed converter. The experimental results demonstrate coherence with the theoretical study and simulation results. The converter shows a 96.3% peak conversion efficiency.

Item Type:	Conference Publication
Authors/Creators:	Hassan, W and Soon, JL and Gautam, S and Lu, DD-C and Xiao, W
Keywords:	coupled inductor, DC nanogrid, high voltage gain, high efficiency, low voltage stress
Journal or Publication Title:	Proceedings of the 46th Annual Conference of the IEEE Industrial Electronics Society
Publisher:	Institute of Electrical and Electronics Engineers
ISSN:	2577-1647
DOI / ID Number:	https://doi.org/10.1109/IECON43393.2020.9254678
Copyright Information:	Copyright 2021 IEEE
Related URLs:	Google Scholar: Hassan, W
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