The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Instantaneous Active/Reactive Power Compensation of Distribution Static Compensator using State Observer

배전용 정지형 보상기의 상태관측기를 이용한 순시 유효/무효전력 보상

  • 김형수 ((주)포스콘 기술연구소) ;
  • 최종우 (경북대 전자전기컴퓨터학부)
  • Published : 2008.08.01
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Abstract

DSTATCOM(distribution static compensator) is one of the custom power devices, and protects a distribution line from unbalanced and harmonic current caused by non-linear and unbalanced loads. Researches about DSTATCOM are mainly divided two parts, one is the calculation of compensation current and the other part is the current control. Conventional researches use a LPF(low pass filter) to eliminate ripple component at the calculation of compensation current. But this method has a problem that LPF's characteristics restrict the compensation performance of instantaneous active and reactive power. This paper proposes a calculation of compensation current using state observer that can be a counterproposal of conventional methods using LPF. Improved performance of instantaneous active and reactive power compensation was shown by experiments.

Keywords

References

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