Um modelo de espaço de estados com representação de segunda ordem para a analise das oscilações de modo interarea em sistemas de energia eletrica / A space state model including second order representation for the analysis of power systems inter-area mode oscillations

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

In this work, the analysis of power systems inter-area mode oscillations is performed by the application of two different methodologies: first, the linear modal analysis, and then the analysis including second order nonlinear terms from a Taylor series expansion, with the application of the method of normal forms of vector fields. In this case, the method of normal forms is applied to a Power Sensitivity Model including second order nonlinear terms, in order to investigate the effects of nonlinear interactions between system modes. Both methodologies consider the inclusion of FACTS devices and dynamic load model. Simulations are performed for a symmetric two-area test power system and for the Equivalent South-Southeast Brazilian system. The results obtained show that the methodology proposed is very effective as an alternative to linear modal analysis and timedomain simulation in the performance of inter-area mode oscillations analysis.

ASSUNTO(S)

sistemas flexíveis de transmissão ca mathematical models flexible ac transmission systems sistemas de energia eletrica electric power system normal forms (mathematics) oscilações oscillations forma normal (matemática) modelos matematicos

ACESSO AO ARTIGO

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