Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1995.07b
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- Pages.620-622
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- 1995
A Study on the Analysis of Voltage Stability on Contingency with EMTP
EMTP를 이용한 상정사고시의 전압안정도에 관한 연구
- Song, Young-Joo (Dept. of Electrical Engineering, Hong-Ik University) ;
- Shim, Keon-Bo (Dept. of Electrical Engineering, Hong-Ik University) ;
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Kim, Jung-Hoon
(Dept. of Electrical Engineering, Hong-Ik University)
;
- Lee, Bong-Yong (Dept. of Electrical Engineering, Hong-Ik University)
- Published : 1995.07.20
Abstract
This paper presents an analysis of the voltage stability when the contingency is occured in the power system. The evaluation of voltage stability is examined by the system identification based on T/L losses and percent indicator which represents how relatively far-off from the voltage collapse. When contingency happens, the bus voltages can be calculated using the EMTP and then, the time-interval in contingency is linearized between the known operating points in nose curves. For the sample study, the 5-bus and 7-bus systems are selected and, countermeasures for the contingency are established in view of the voltage stability.
Keywords