대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1993년도 하계학술대회 논문집 A
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- Pages.106-108
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- 1993
Lyapunov 직접법에 의한 2모선 개통의 전압안정도 해석
A study on Voltage Stability Analysis by the Lyapunov Direct Method in 2-bus Systems
- Moon, Young-Hyun (Yonsei Univ. Dept. of Electrical Engineering) ;
- Lee, Tae-Shik (Yonsei Univ. Dept. of Electrical Engineering) ;
- Kim, Baik (Yonsei Univ. Dept. of Electrical Engineering) ;
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Lee, Eung-Hyuk
(Yonsei Univ. Dept. of Electrical Engineering)
;
- Park, Neung-Soo (Yonsei Univ. Dept. of Electrical Engineering)
- 발행 : 1993.07.18
초록
This paper gives derivations of voltage collapse conditions by using the Lyapunov function, which yields the exactly same results with the sensitivity analysis approach. On the other hand, the voltage collapse phenomenon is interpreted in the physical sense, and causes of the static voltage unstability and the dynamic voltage unstability are analyzed with the use of proposed Lyapunov function. In addition a new method is developed to calculate the power capacity limit of transmission lines with respect to voltage stability. This paper shows that it is able to analyze the voltage collapse with the Lyapunov direct method in the simple 2-bus system and proposes that the method works well by observing the variation of Lyapunov function as the load is increased in the system.
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