대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2001년도 춘계학술대회 논문집 전력기술부문
- /
- Pages.172-175
- /
- 2001
다모선 전력계통에서 댐핑효과를 고려한 에너지 함수의 유도
Derivation of an Energy Function Reflecting Damping Effects in Multi-Machine Power Systems
- Kwon, Yong-Jun (Electrical Eng. Yonsei Univ.) ;
- Ryu, Heon-Su (Electrical Eng. Yonsei Univ.) ;
- Choi, Byoung-Kon (LG-EDS systems) ;
- Moon, Young-Hyun (Electrical Eng. Yonsei Univ.)
- 발행 : 2001.05.11
초록
This paper presents a new energy function reflecting the damping effect in multi-machine power systems. The Lyapunov direct method provides precise and rigorous theoretical backgrounds for stability analysis of nonlinear systems. Incorporating damping effects into accurate estimates of the domain of attraction, which is a minor but crucial point, has been attempted with long history to yield partial success for single machine systems. In this paper, the damping-reflected energy function presented in the previous work has been generalized for application to multi-machine systems. The generalized energy function is tested for the WSCC 9-bus system to show the semi-negativeness of its time derivative.
키워드