Stability analysis of linear dynamical systems with saturation nonlinearities and a short time delay

A class of linear dynamical systems subject to saturation nonlinearities and a short time delay were approximated by singular perturbation dynamical systems with saturation nonlinearities based on the notion of Pade approximation. The stability region of the approximate systems was proved to be decomposed and a convex Linear Matrix Inequality (LMI) optimization model was introduced to estimate the decomposed stability region with least degree of conservativeness.

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