Journal of Power Electronics

  • 제22권12호
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  • Pages.2100-2121
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  • 2022
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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

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Analysis of a coupled inductor boost three-port converter with high voltage gain for renewable energy systems

  • Ming, Gao (College of Electrical Engineering, Zhejiang University) ;
  • Shanshan, Wang (College of Electrical Engineering, Zhejiang University) ;
  • Weichen, Yu (College of Electrical Engineering, Zhejiang University) ;
  • Tao, Liu (State Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power-Sources) ;
  • Jianjiang, Shi (College of Electrical Engineering, Zhejiang University)
  • 투고 : 2022.04.15
  • 심사 : 2022.09.19
  • 발행 : 2022.12.20
⟨ 이전 논문 다음 논문 ⟩

초록

A conventional boost three-port converter is combined with a coupled-inductor-based boost-flyback converter in this work to produce a high-step-up three-port converter. The proposed converter inherits the benefits of two conventional converters, including high voltage gain, few elements, and energy recycling of the leakage inductor. In addition, the voltage stresses of switches are considerably lower than the output voltage. Therefore, switches with low ON resistance can be selected to reduce the conduction loss. Additionally, the freewheel diodes are capable of zero-current switching. The operation principle can be divided into three modes of operation, and the three steady-state operation modes are analyzed under each of the three conduction modes. The operation principles of various modes, the voltage characteristics, the boundary of the coupled inductor, and the proposed converter's control method are discussed in depth to provide detailed theoretical guidance to designers. Then, the simulation and experiment results of a laboratory prototype with an 18 V PV source, 24 V battery pack, and 180 V output are presented to validate the feasibility of the theoretical analysis.

키워드

과제정보

This research is supported by the National Natural Science Foundation of China (52077199).

참고문헌

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