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

  • 제22권2호
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  • Pages.126-133
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  • 2017
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  • 1229-2214(pISSN)
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  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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LLC 공진형 컨버터 기반 리튬이온 배터리 충전기의 통합 전류-전압 보상기 설계방법 연구

Design of an Integrated Current-Voltage Charging Compensator for the LLC Resonant Converter-Based Li-ion Battery Charger

  • Choi, Yeong-Jun (Dept. of Electrical Eng., HYPEC-EECS lab., Hanyang University) ;
  • Choi, See-Young (Dept. of Electrical Eng., HYPEC-EECS lab., Hanyang University) ;
  • Kim, Rae-Young (Dept. of Electrical Eng., HYPEC-EECS lab., Hanyang University)
  • 투고 : 2016.10.06
  • 심사 : 2016.12.08
  • 발행 : 2017.04.20
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초록

The conventional battery charger requires two separate voltage and current compensators to achieve constant current and constant-current-charging profile. This compensator configuration leads to an inevitable transient response during the mode change between the constant current and the constant voltage operation. Futhermore, a tedious and complicated design process is required to consider a widely changing battery voltage and the nonlinear electrical properties of Li-ion battery. This study proposes a single integrated voltage-current compensator of the LLC resonant converter for Li-ion battery charger applications to overcome the aforementioned drawbacks. The proposed compensator is designed to provide a smooth and reliable performance during the entire charging process while providing the reduced design efforts and seamless mode transient response. Several experimental results based on a 300 W prototype converter and its theoretical analysis are provided to verify the effectiveness of the proposed compensator.

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참고문헌

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