대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1991년도 추계학술대회 논문집 학회본부
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- Pages.35-38
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- 1991
효율적인 전압안정도 한계점 계산에 관한 연구
Effective Calculation Method Finding the Limit of Voltage-Stability
- Song, K.Y. (KOREA UNIVERSITY) ;
- Kim, S.Y. (KOREA UNIVERSITY) ;
- Choi, S.G. (ANYANG COLLEGE)
- 발행 : 1991.11.22
초록
Recent, problems on the voltage-instability have been paid attention in power system and methods to find the limit of voltage-stability, concerned with these problems, were developed. However, these methods are short of precision on the limit of voltage-instability. Here, using the second-order load flow, constraint equation(d Pi/d Vi=0) and its patial differentiations are precisely formulated. Also, since the taylor series expansion of power flow equations terminates at the second-order terms, partial differentiations of constraint equation, that is Hessian, are constant. Then, Hessian matrix are calculated once during iteration process.
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