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

The Korean Institute of Power Electronics (전력전자학회)
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Experiment of Single-phase Grid Connected Battery Charger

5kW급 계통연계형 단상 배터리 충전기의 구현 및 실험

  • An, Hyun-Sung (Dept. of Electrical Eng., Chungnam National University) ;
  • Lee, Wujong (Dept. of Electrical Eng., Chungnam National University) ;
  • Mun, Byung-Ho (Dept. of Electrical Eng., Chungnam National University) ;
  • Park, Il-Kyu (Dept. of Electrical Eng., Chungnam National University) ;
  • Jung, Seon-Yong (Dept. of Electrical Eng., Chungnam National University) ;
  • Kim, Youngroc (Dept. of Electrical Eng., Chungnam National University) ;
  • Cha, Hanju (Dept. of Electrical Eng., Chungnam National University)
  • Received : 2012.10.15
  • Accepted : 2012.12.07
  • Published : 2013.02.20
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Abstract

This paper explains control methods of single-phase grid connected battery charger. Charging mode is control by Constant Current - Constant Voltage method and discharging mode is controlled by active-reactive power control method. Current control method is based on the synchronous reference frame(SRF) PI controller, and the second harmonic of battery current is compensated by an added L-C resonant circuit. Feasibility of the proposed control methods is verified through experiment with a prototype of 5kW single-phase grid connected battery charger.

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References

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