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Optimized coupled inductor DC/DC converter by integrating snubber circuit with voltage lift technique


Hassan, W and Soon, JL and Gautam, S and Lu, DD-C and Xiao, W, Optimized coupled inductor DC/DC converter by integrating snubber circuit with voltage lift technique, Proceedings of the 46th Annual Conference of the IEEE Industrial Electronics Society, 18-21 October 2020, Singapore, pp. 1401-1405. ISSN 2577-1647 (2020) [Refereed Conference Paper]

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DOI: doi:10.1109/IECON43393.2020.9254678


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 Details

Item Type:Refereed Conference Paper
Keywords:coupled inductor, DC nanogrid, high voltage gain, 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:149337
Year Published:2020
Deposited By:Engineering
Deposited On:2022-03-25
Last Modified:2022-04-27

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