Saddle-node equilibrium points on the stability boundary of nonlinear autonomous dynamical systems

Autor(es)

Amaral, Fabiolo Moraes ^[1] ; Alberto, Luis Fernando C. ^[2] ; Gouveia, Jr., Josaphat R. R. ^[1]

Afiliação do(s) autor(es)

^[1] Coll Eunapolis, Fed Inst Bahia, Eunapolis - Brazil

^[2] Univ Sao Paulo, Sch Engn Sao Carlos, Dept Elect Engn & Comp Sci, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: DYNAMICAL SYSTEMS-AN INTERNATIONAL JOURNAL; v. 33, n. 1, p. 113-135, 2018.
• Citações Web of Science: 0

Resumo

A complete characterization of the stability boundary of an asymptotically stable equilibrium point in the presence of type-k saddle-node non-hyperbolic equilibrium points, with k 0, on the stability boundary is developed in this paper. Under the transversality condition, it is shown that the stability boundary is composed of the stable manifolds of the hyperbolic equilibrium points on the stability boundary, the stable manifolds of type-0 saddle-node equilibrium points on the stability boundary and the stable centre and centre manifolds of the type-r saddle-node equilibrium points with r 1 on the stability boundary. This characterization is the first step to understanding the behaviour of stability regions and stability boundaries in the occurrence of saddle-node bifurcations on the stability boundary. (AU)

• Processo FAPESP: 12/14194-9 - Métodos Diretos para Análise de Estabilidade de Sistemas Elétricos de Potência
• Beneficiário: Luís Fernando Costa Alberto
• Modalidade de apoio: Auxílio à Pesquisa - Regular