Journal of Power Electronics

  • 제20권3호
  • /
  • Pages.664-674
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  • 2020
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  • 1598-2092(pISSN)
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  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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DOI QR코드

DOI QR Code

Soft-switching and low conduction loss current-fed isolated bidirectional DC-DC converter with PWM plus dual phase-shift control

  • Zhang, Zhao (College of Automation Engineering, Nanjing University of Aeronautics and Astronautics) ;
  • Xie, Shaojun (College of Automation Engineering, Nanjing University of Aeronautics and Astronautics) ;
  • Wu, Zhiying (College of Automation Engineering, Nanjing University of Aeronautics and Astronautics) ;
  • Xu, Jinming (College of Automation Engineering, Nanjing University of Aeronautics and Astronautics)
  • 투고 : 2020.01.03
  • 심사 : 2020.03.06
  • 발행 : 2020.05.20
⟨ 이전 논문 다음 논문 ⟩

초록

In battery energy storage systems, the battery and DC bus voltages vary greatly. This makes it difficult for the battery storage converter to maintain high efficiencies under all circumstances. A current-fed isolated bidirectional DC-DC converter is presented in this paper. This converter contains two series transformers, two conventional current-fed half-bridges at the battery side and two half-bridges at the DC bus side. PWM plus dual phase shift modulation with equal duty cycles and voltage-matched control is applied to ensure ZVS of all the switches and low conduction losses. The average and backflow power transmission equations and soft-switching conditions for all of the operation modes in the full operation range are analyzed comprehensively in this paper. Then six recommended modes are addressed based on the above analyses. Moreover, the control scheme and hardware design guidelines are addressed. Finally, the above theoretical analyses and control strategy are verified by experimental results.

키워드

과제정보

This work was supported by the National Natural Science Foundation of China under Award 51877104.

참고문헌

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피인용 문헌

  1. Modeling and controller optimization for current-fed isolated bidirectional DC-DC converters vol.20, pp.6, 2020, https://doi.org/10.1007/s43236-020-00139-y
  2. Practical Controller Design of Three-Phase Dual Active Bridge Converter for Low Voltage DC Distribution System vol.9, pp.12, 2020, https://doi.org/10.3390/electronics9122101