대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1998년도 추계학술대회 논문집 학회본부 C
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- Pages.1033-1036
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- 1998
계통의 종합적 미소신호 안정도해석에 관한 연구
A Study on Integrated Small Signal Stability Analysis of Power Systems
- Nam, Ha-Kon (Chonnam National University) ;
- Song, Sung-Geun (Chonnam National University) ;
- Kim, Yong-Gu (Chonnam National University) ;
- Shim, Kwan-Shik (Seonam University)
- 발행 : 1998.11.28
초록
In this research project, two aspects of small signal stability are studied: improvement in Hessenberg method to compute the dominant electromechanical oscillation modes and siting FACTS devices to damp the low frequency oscillation. Fourier transform of transient stability simulation results identifies the frequencies of the dominant oscillation modes accurately. Inverse transformation of the state matrix with complex shift equal to the angular speed determined by Fourier transform enhances the ability of Hessenberg method to compute the dominant modes with good selectivity and small size of Hessenberg matrix. Any specified convergence tolerance is achieved using the iterative scheme of Hessenberg method. Siting FACTS devices such as SVC, STACOM, TCSC, TCPR and UPFC has been studied using the eigen-sensitivity theory of augmented matrix. Application results of the improved Hessenberg method and eigen-sensitivity to New England 10-machine 39-bus and KEPCO systems are presented.
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