Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Family of boost and buck-boost converters with continuous input current and reduced semiconductor count for hybrid energy systems

  • Shan Miao (School of Electrical and Information Engineering, Zhengzhou University) ;
  • Xinyuan Luo (School of Electrical and Information Engineering, Zhengzhou University) ;
  • Wei Liu (Yutong Bus Co., Ltd.) ;
  • Yang Jin (School of Electrical and Information Engineering, Zhengzhou University)
  • Received : 2023.05.02
  • Accepted : 2023.10.29
  • Published : 2024.02.20
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Abstract

Power converters are the key link to realize energy transfer from hybrid energy systems (HESs) to loads. In this paper, a family of boost and buck-boost DC-DC converters that is highly desirable for HESs is proposed and analyzed. The proposed converters possess continuous input currents that can realize small input current ripples and avoid the use of large input filters. Besides, the semiconductor counts of the proposed converters are low. Two of the converters employ single-switch double-diode while the other two adopt single-switch triple-diode. The reduced semiconductor counts greatly improve converter efficiency and system reliability. In addition, these boost and buck-boost converters have high voltage-boosting capabilities, and wide voltage gain ranges can be achieved when they are applied to HESs. Theoretical analyses and an experimental prototype are used to verify the characteristics and effectiveness of these converters.

Keywords

Acknowledgement

This work is supported by the Key R&D and Promotion Special (Scientific Problem Tackling) Project of Henan Province under granted No. 232102241001.

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