Resumo

CALDERON-GUIZAR, J.G.. Modal Analysis of Electromechanical Oscillations in Electrical Power Systems. Ing. invest. y tecnol. [online]. 2008, vol.9, n.4, pp.313-317. ISSN 2594-0732.

Electromechanical oscillations in any electrical power system is a typical characteristic of this kind of systems. Provided the damping associated with these oscillations lies above of a minimum specified value, the occurrence of these oscillation is not considered as a threat to the system operation. This paper focuses the attention on the application of modal analysis for assessing the dynamical behavior of a power system subjected to small disturbances for different operating conditions and transmission system topologies, as well. The reported results indicate, that modal analysis enables a straight identification of the causes that contribute negatively to the damping of the electromechanical modes.

Palavras-chave : Modal analysis; participation factors; electromechanical oscillations; power systems.