The Transactions of the Korean Institute of Electrical Engineers A (대한전기학회논문지:전력기술부문A)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of Small Signal Stability Using Resonance Conditions

공진조건을 이용한 미소신호 안정도 해석

  • 조성진 (國防科學硏究所) ;
  • 장길수 (高麗大 電氣 ${\cdot}$ 電子 ${\cdot}$ 電波工學部) ;
  • 윤태웅 (高麗大 電氣 ${\cdot}$ 電子 ${\cdot}$ 電波工學部)
  • Published : 2002.11.01
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Abstract

Modern power grids are becoming more and more stressed with the load demands increasing continually. Therefore large stressed power systems exhibit complicated dynamic behavior when subjected to small disturbance. Especially, it is needed to analyze special conditions which make small signal stability structure varied according to operating conditions. This paper shows that the relation between small signal stability structure varied according to operating conditions. This paper shows that the relation between small signal stability and operating conditions can be identified well using node-focus point and 1:1 resonance point. Also, the weak point which limits operating range is found by the analysis of resonance condition, and it is shown that reactive power compensation may solve the problem in the weak points. The proposed method is applied to test systems, and the results illustrate its capabilities.

Keywords

References

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