Analysis, Design, and Experimental Verification of High Step-up DC-DC Converter to Interface Renewable Energy Sources into DC Nanogrid

Paper

Hassan, Waqas, Gautam, Samir, Lu, Dylan Dah-Chuan and Xiao, Weidong. 2019. "Analysis, Design, and Experimental Verification of High Step-up DC-DC Converter to Interface Renewable Energy Sources into DC Nanogrid." 2019 IEEE International Conference on Industrial Technology (ICIT). Melbourne, Australia 13 - 15 Feb 2019 United States. IEEE (Institute of Electrical and Electronics Engineers). https://doi.org/10.1109/ICIT.2019.8755184
Paper/Presentation Title

Analysis, Design, and Experimental Verification of High Step-up DC-DC Converter to Interface Renewable Energy Sources into DC Nanogrid

Presentation TypePaper
AuthorsHassan, Waqas, Gautam, Samir, Lu, Dylan Dah-Chuan and Xiao, Weidong
Journal or Proceedings TitleProceedings of 2019 IEEE International Conference on Industrial Technology (ICIT)
Journal Citationpp. 1649-1654
Number of Pages6
Year2019
PublisherIEEE (Institute of Electrical and Electronics Engineers)
Place of PublicationUnited States
ISBN9781538663769
Digital Object Identifier (DOI)https://doi.org/10.1109/ICIT.2019.8755184
Web Address (URL) of Paperhttps://ieeexplore.ieee.org/abstract/document/8755184
Web Address (URL) of Conference Proceedingshttps://ieeexplore.ieee.org/xpl/conhome/8746085/proceeding
Conference/Event2019 IEEE International Conference on Industrial Technology (ICIT)
Event Details
2019 IEEE International Conference on Industrial Technology (ICIT)
Delivery
In person
Event Date
13 to end of 15 Feb 2019
Event Location
Melbourne, Australia
Abstract

This paper proposes a new non-isolated, high step-up DC-DC converter to interface renewable sources into DC microgrid. The topology utilizes the coupled inductor and switched capacitor techniques to achieve high step-up voltage conversion ratio. The leakage energy is directly transferred to output to avoid voltage spikes across the switch. The switching devices have relatively low voltage stresses. In addition, the coupled inductor alleviated the reverse recovery problem of the diode. The key features include high efficiency, low voltage stresses, and low component count and cost. The steady-state analysis and operation of the proposed converter are presented in detail. Finally, a 200 W prototype circuit operating at a switching frequency of 100 kHz is built in the laboratory to verify the performance. The experimental results substantiate the theoretical analysis and show a peak efficiency of 96.90%.

Keywordscoupled inductor; dc-dc power conversion; dc nanogrid, high voltage gain; PV systems; renewable energy sources
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020400802. Electrical circuits and systems
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Byline AffiliationsUniversity of Sydney
University of Technology Sydney
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