Abstract

PACHECO-MARTINEZ, N.J.; JUAREZ-TOLEDO, C  and  MARTINEZ-CARRILLO, I. Dynamic Stability Analysis Using High-Order Interpolation. Ing. invest. y tecnol. [online]. 2012, vol.13, n.4, pp.451-460. ISSN 2594-0732.

A non-linear model with robust precision for transient stability analysis in multi-machine power systems is proposed. The proposed formulation uses the interpolation of Lagrange and Newton's Divided Difference. The High-Order Interpolation technique developed can be used for evaluation of the critical conditions of the dynamic system. The technique is applied to a 5-area 45-machine model of the Mexican interconnected system. As a particular case, this paper shows the application of the High-Order procedure for identifying the slow-frequency mode for a critical contingency. Numerical examples illustrate the method and demonstrate the ability of the High-Order technique to isolate and extract temporal modal behavior.

Keywords : equal-area criterion; Method of Divided Differences; High Order Interpolation Method.

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