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Design and development of high step-up DC-DC converter to realize high efficiency and reduced voltage stress

Hassan, W ORCID: 0000-0002-1926-1724, Hasan, R, Lu, DD-C and Xiao, W 2020 , 'Design and development of high step-up DC-DC converter to realize high efficiency and reduced voltage stress', in Proceedings of the 2020 IEEE Applied Power Electronics Conference and Exposition (APEC) , Institute of Electrical and Electronics Engineers, United States, pp. 2098-2103 , doi: https://doi.org/10.1109/APEC39645.2020.9124411.

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Abstract

his paper proposes a new high voltage gain and high-efficiency DC-DC converter. The proposed topology is formed by a coupled inductor to achieve high voltage gain and low stress on the active switch. The switch voltage stress is significantly low compared to the output voltage which enables the use of a low voltage rating MOSFET. Moreover, the voltage stress on output diode is decreased to 16% of the output voltage as compared with boost and other high step-up converters. Furthermore, the utilization of the coupled inductor eliminated the reverse recovery losses of diodes. The efficiency of the converter is hence improved. As compared with existing topologies, the proposed converter consists of the least number of components that decrease the overall system cost. The steady-state operation and analysis of the proposed converter are presented. The experimental results of a hardware prototype demonstrate the consistency with the theoretical analysis. The converter shows a peak efficiency of 96.7%.

Item Type: Conference Publication
Authors/Creators:Hassan, W and Hasan, R and Lu, DD-C and Xiao, W
Keywords: DC-DC converter, coupled inductor, high step-up, high efficiency, low voltage stress
Journal or Publication Title: Proceedings of the 2020 IEEE Applied Power Electronics Conference and Exposition (APEC)
Publisher: Institute of Electrical and Electronics Engineers
DOI / ID Number: https://doi.org/10.1109/APEC39645.2020.9124411
Copyright Information:

Copyright 2020 IEEE

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