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

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

RCF 해석법을 사용한 스위칭 설비의 ON/OFF 시간간격에 의한 진동모드 해석

Analysis of Oscillation Modes Occurred by ON/OFF Time Intervals of Switching Equipments by the RCf Method

  • 김덕영 (군산대학 전자정보공학부) ;
  • 동무환 (군산대학 전자정보공학부 대학원) ;
  • 이윤호 (군산대학 전자정보공학부 대학원)
  • 발행 : 2006.01.01
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초록

In this paper, the RCF(Resistive Companion Form) analysis method which is used to analyze small signal stability problems of non-continuous systems including switching devices. The RCF analysis method is mathematically rigorous and computes eigenvalue of the system periodic transition matrix based on discrete system analysis method. As an effect of switching operations, the eigenvalues of the systems are changed and newly unstable oscillation modes may be occurred. As an illustrating example, the oscillation modes of the system with different switching time intervals are computed exactly by the RCF analysis method and the results show that ON/OFF time intervals of switching equipments are important factors to make the system stable or unstable. This result shows that the RCF analysis method is very powerful to analyze small signal stability problems of power systems including switching devices such as FACTS equipments.

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참고문헌

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