Design and implementation of a bidirectional DC-DC forward/flyback converter with leakage energy recycled

Yi Ju Lu, Tsorng Juu Liang, Ci Hong Lin, Kai Hui Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A bidirectional interleaved forward-flyback DC-DC converter with leakage energy recycled is proposed in this paper. The proposed converter uses two transformers to reduce the current stress on the power components to reduce the conduction loss and improve the efficiency. When the proposed converter is operated in the step-up mode, the voltage across switches is clamped at the input voltage, and the leakage energy is recycled to the voltage source. When the proposed converter is operated in the step-down mode, the voltage of switches is clamped at the input voltage, and the leakage energy is recycled to the clamping capacitor or the voltage source. As the proposed converter is based on flyback converter, it is characterized with simple structure. Since the leakage inductance energy is recycled, the conversion efficiency is improved compared to conventional flyback converter. Finally, a laboratory prototype circuit with 200 V/24 V and output power 500 W is implemented to verify the feasibility of the proposed converter. The highest efficiency in the step-up and stepdown stage is 92.3% and 95.5% respectively.

Original languageEnglish
Title of host publication2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-6
Number of pages6
ISBN (Electronic)9781538609712
DOIs
Publication statusPublished - 2017 Dec 5
Event2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017 - Singapore, Singapore
Duration: 2017 Oct 242017 Oct 26

Publication series

Name2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017
Volume2017-December

Other

Other2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017
CountrySingapore
CitySingapore
Period17-10-2417-10-26

All Science Journal Classification (ASJC) codes

  • Transportation
  • Energy Engineering and Power Technology
  • Automotive Engineering

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  • Cite this

    Lu, Y. J., Liang, T. J., Lin, C. H., & Chen, K. H. (2017). Design and implementation of a bidirectional DC-DC forward/flyback converter with leakage energy recycled. In 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017 (pp. 1-6). (2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017; Vol. 2017-December). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ACEPT.2017.8168572