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Expandable Dual-input High Step-up DC-DC Converter
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Yimin HUANG, Guoqing LIN, Siqi LIN
Journal of Power Supply | 2024, 22(5) : 109 - 119
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Journal of Power Supply | 2024, 22(5): 109-119
• DC-DC Converters •
Expandable Dual-input High Step-up DC-DC Converter
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Yimin HUANG, Guoqing LIN, Siqi LIN
Affiliations
  • College of Electrical Engineering and Automation Fuzhou University Fuzhou 350108 China
Published: 2024-09-30 doi: 10.13234/j.issn.2095-2805.2024.5.109
Outline
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Aimed at new energy combined power supply systems such as photovoltaic and fuel cells, a non-isolated dual-input high step-up DC-DC converter is proposed. This converter is based on a dual-input Boost circuit, and the two input sources and output, as well as each switch tube, share a common ground. A diode capacitor network is introduced at the later stage to achieve high voltage gain and reduce the voltage stress of switching devices. The two input sources can supply power at the same time, and any one of them can supply power independently without adding extra switch tubes. In addition, the voltage gain can be further improved by expanding the booster unit to adapt to different application scenarios. The working principle for the converter and its extended circuit and the corresponding performance such as voltage gain characteristics and voltage stress of switching devices in three power supply modes are analyzed in detail, and its performance is compared with those of the existing similar converters. Finally, an experimental prototype was built to verify its feasibility.

Dual-input  /  high step-up  /  DC-DC converter  /  new energy power generation
Yimin HUANG, Guoqing LIN, Siqi LIN. Expandable Dual-input High Step-up DC-DC Converter[J]. Journal of Power Supply, 2024 , 22 (5) : 109 -119 . DOI: 10.13234/j.issn.2095-2805.2024.5.109
Funding
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  • Fujian Science and Technology Project(2015H0017)
  • Fuzhou University Jinjiang Science and Education Park(2019-JJFDKY-37)
Appendix
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Year 2024 volume 22 Issue 5
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305
118
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Article Info
doi: 10.13234/j.issn.2095-2805.2024.5.109
  • Receive Date：2021-08-05
  • Online Date：2025-07-20
  • Published：2024-09-30
Article Data
Affiliations
History
  • Received：2021-08-05
  • Revised：2021-09-24
  • Accepted：2021-10-31
Funding
Fujian Science and Technology Project(2015H0017)
Fuzhou University Jinjiang Science and Education Park(2019-JJFDKY-37)
Affiliations
    College of Electrical Engineering and Automation Fuzhou University Fuzhou 350108 China
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多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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