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Probabilistic Steady-State Security Assessment of an Electric Power System Using A Monte Carlo Approach

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6 Author(s)
Agreira, C.I.F. ; DEE, Inst. Super. de Eng. de Coimbra, Coimbra ; de Jesus, S.M.F. ; de Figueiredo, S.L. ; Ferreira, C.M.
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In this paper it is proposed a probabilistic stead-state security assessment of an electric power system using a Monte Carlo method. This approach evaluates a probabilistic measure of the system security, instead of just a particular response to a specified contingency. Performance indices are used to assess the impact of the contingencies in the power system security. These indices allow to accurately evaluate the influence of the overloads, voltage limit violations and voltage stability problems in the power network. A probabilistic version the SECURsySTEM software package developed by the authors was applied to the IEEE 118 busbars test power system. During the simulation time, the occurrence of contingencies and the subsequent protective actions are assumed as a stochastic process. Finally, some conclusions that provide a valuable contribution to the understanding of the power system security analysis are pointed out.

Published in:

Universities Power Engineering Conference, 2006. UPEC '06. Proceedings of the 41st International  (Volume:2 )

Date of Conference:

6-8 Sept. 2006

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