Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Robust Controller Design for the Regulation of Currents in a Three-phase Load

3상 부하 전류 제어를 위한 강인한 제어기 설계기법

  • Jee, Sujung (Soongsil University, Dept. Electrical Engineering) ;
  • Jo, Nam-Hoon (Soongsil University, Dept. Electrical Engineering)
  • 지수정 (숭실대학교 전기공학부) ;
  • 조남훈 (숭실대학교 전기공학부)
  • Received : 2013.01.20
  • Accepted : 2013.05.09
  • Published : 2013.07.31
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Abstract

The regulation of currents in a three-phase load is an important issue for electric power systems. The most popular conventional method is a decoupling controller that compensates the coupling terms arising from DQ rotating frame transformation. Although the decoupling controller achieves decent performance in the absence of load parameter uncertainties, the variation of parameters causes performance to degrade intolerably. In this paper, we propose to use disturbance observer based controller to improve the control performance in spite of the parameter uncertainties. The computer simulation study validates the effectiveness of the proposed method.

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References

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