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

The Korean Institute of Electrical Engineers (대한전기학회)
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Eigenvalue Distribution Analysis Via UPFC for Enhancing Dynamic Stability Into the Multi-machine Power System

다기 전력시스템의 동적안정도 향상을 위해 UPFC 연계시 고유치 분포 해석

  • 김종현 (한양대 공대 전기공학과) ;
  • 정창호 (한양대 공대 전기공학과) ;
  • 김진오 (한양대 공대 전기공학과)
  • Published : 2003.09.01
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Abstract

This paper analyzes an eigenvalue distribution and enhancement of the small signal stabiligy when an Unified Power Flow Controller (UPFC) modeling is connected into the multi-machine power system. Recently a lot of attention has been paid to the subject of dynamic stability. It deals with analysis of eigenvalue sensitivities with respect to parameters of UPFC Controller and damping of interarea and local electromechanical oscillation modes using UPFC Controller. It provides an insight and understanding in the basic characteristics of damping effects of UPFC Controller and shows a very stable frequency response via UPFC in test model. The series branch of the UPFC is designed to damp the power oscillation during transients, while the shunt branch aims at maintaining the bus voltage and angle. Comprehensive time-domain simulation studies using PSS/E show that the proposed robost UPFC controller can enhance the small signal stability efficiently in spite of the variations of power system operating conditions.

Keywords

References

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