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DYNA

versão impressa ISSN 0012-7353

Resumo

SCHWEICKARDT, GUSTAVO  e  GIMENEZ ALVAREZ, JUAN MANUEL. ON-LINE DYNAMIC SECURITY ASSESSMENT OF A MICRO-GRID USING FUZZY LOGIC AND DISTRIBUTED PROCESSING. Dyna rev.fac.nac.minas [online]. 2013, vol.80, n.182, pp.31-40. ISSN 0012-7353.

Dynamic security assessment (DSA) is defined as the ability of a power system to withstand sudden contingencies and to survive the transient and to reach an acceptable steady-state condition. During system operation, the on-line assessment of the dynamic security level is essential in order to take adequate countermeasures aimed to restore the system, if necessary, to a more secure operating condition. Due to both the great complexity of latest power systems and the large number of components, the on-line DSA leads to excessive computational complexity which makes it not fully operational, particularly with the inclusion of complex emerging grid-tied AC micro grids. To overcome this problem, a new approach of on-line DSA of micro grids is presented in this paper. The proposal employs distributed processing and artificial intelligence (AI) techniques in order to reduce the computing times; thus allowing its execution on-line.

Palavras-chave : Artificial intelligence techniques; on-line dynamic security assessment (DSA); distributed processing; fuzzy dynamic security index (FDSI); fuzzy inference system (FIS); grid-interactive AC micro grid.

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