The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Bidirectional Tapped-inductor Boost-Flyback Converter

비절연형 양방향 탭인덕터 부스트 플라이백 컨버터

  • Kim, Hyun-Woo (Dept. of Electrical Engineering, Soongsil University) ;
  • Jeon, Young-Tae (Dept. of Electrical Engineering, Soongsil University) ;
  • Park, Joung-Hu (Dept. of Electrical Engineering, Soongsil University) ;
  • Jeon, Hee-Jong (Dept. of Electrical Engineering, Soongsil University)
  • Received : 2014.12.29
  • Accepted : 2015.04.09
  • Published : 2015.10.20
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Abstract

This paper proposes a new bidirectional DC-DC converter with high efficiency. The proposed converter is composed of a flyback and a tapped-inductor boost converter to satisfy extreme operating conditions with low cost. The outputs are connected in series to achieve a high-voltage step-up. In the reverse direction, the proposed converter has an extreme step-down voltage. In this study, the proposed converter was employed with a 100 W hardware prototype. To design the controller, a small-signal transfer function of the proposed converter is derived. For PV power conditioning systems, a maximum power point tracking method is applied with perturb and observe method. To verify the operation of the bidirectional power flow, the current controller is applied. All of the controllers are employed with a digital signal processor.

Keywords

References

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