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Información tecnológica

versão On-line ISSN 0718-0764

Resumo

QUINTERO, Carlos M.; LOPEZ-LEZAMA, Jesús M.  e  MUNOZ-GALEANO, Nicolás. Techniques to Increase Security Operation in Degraded Network Conditions through Topological Modifications in Power Systems. Inf. tecnol. [online]. 2019, vol.30, n.6, pp.363-376. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642019000600363.

This paper presents two techniques for identifying topological scenarios of transmission networks for security enhancement in degraded network conditions. The implemented techniques are Simulated Annealing and Iterated Local Search. The objective of the topological modifications is the reduction of the number of violated constraints under N-1 contingencies. The proposed search techniques make topologic explorations through state changes in sub-station switches. These explorations are used to find reconfigurations of the electric power system which guaranty a higher level of security in face of N-1 contingencies when compared with the case when the topology is not changed. Security conditions consider an AC model and a bay-switch model to the assessment of contingencies, which allows the evaluation of real conditions of failure release in the power system. Results are presented with the IEEE 118 bus test system that demonstrates the effectiveness and applicability of the proposed techniques.

Palavras-chave : power systems; substations; security; network reconfiguration.

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