Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1999.11b
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- Pages.193-196
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- 1999
Applications of Eigen-Sensitivity for Contingency Screening of Transient Stability in Large Scale Power Systems
대규모 전력계통의 과도안정도 상정사고 선택에 고유치감도 응용
- Shim, Kwan-Shik (Seonam University) ;
- Nam, Hae-Kon (Chonnam National University) ;
- Kim, Yong-Ku (Chonnam National University) ;
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Song, Sung-Geun
(Chonnam National University)
- Published : 1999.11.20
Abstract
This paper presents a new systematic contingency selection and screening method for transient stability. The variation of modal synchronizing torque coefficient(MSTC) is computed using eigen-sensitivity analysis of the electromechanical oscillation modes in small signal stability model and contingencies are ranked in decreasing order of the sensitivities of the MSTC(SMSTC). The relevant clusters are identified using the eigenvector or participating factor. The proposed algorithm is tested on the KEPCO system. Ranking obtained by the SMSTC is consistent with the time simulation results by PSS/E.
Keywords
- transient stability;
- contingency ranking;
- modal synchronizing coefficient;
- eigen-sensitivity;
- small signal stability