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

The Korean Institute of Power Electronics (전력전자학회)
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An Active Feedforward Compensation for a Current Harmonics Reduction in Three-phase Grid-connected Inverters

3상 계통 연계형 인버터에서의 전류 고조파 감쇄를 위한 능동형 피드포워드 보상 기법

  • Park, Byong-Jun (Dept. of Electrical Eng., EECS lab., Hanyang University) ;
  • Kim, Rae-Young (Dept. of Electrical and Biomedical Eng., Hanyang University) ;
  • Choi, Ki-Young (Dept. of Electrical Eng., EECS lab., Hanyang University)
  • Received : 2013.09.09
  • Accepted : 2013.11.06
  • Published : 2014.02.20
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Abstract

This paper proposes a current harmonic compensation method for the grid-connected inverter, especially caused by the grid impedance. Grid impedance causes low order harmonics in the grid current and deteriorates power quality. This paper analyzes the negative impact of the grid impedance, and proposes an active feedforward compensation method. Proposing method verified through simulation and experiment with 3-phase 1.5kW voltage source inverter prototype.

Keywords

References

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