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


Hassan, W and Hasan, R and Lu, DD-C and Xiao, W, Design and development of high step-up DC-DC converter to realize high efficiency and reduced voltage stress, Proceedings of the 2020 IEEE Applied Power Electronics Conference and Exposition (APEC), 15-19 March 2020, Virtual Conference, Online (New Orleans, USA), pp. 2098-2103. ISBN 978-1-7281-4829-8 (2020) [Refereed Conference Paper]

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DOI: doi:10.1109/APEC39645.2020.9124411


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 Details

Item Type:Refereed Conference Paper
Keywords:DC-DC converter, coupled inductor, high step-up, high efficiency, low voltage stress
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:149338
Year Published:2020
Deposited By:Engineering
Deposited On:2022-03-25
Last Modified:2022-04-27

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