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Título del libro: Fixed-Time Parameter Estimation In Polynomial Systems Through Modulating Functions
Título del capítulo: Sampled describing function analysis of second order sliding modes

Autores UNAM:
LEONID FRIDMAN;
Autores externos:

Idioma:
Inglés
Año de publicación:
2016
Resumen:

The describing function method is applied to characterize the steady state behavior of the linear sampled data systems stabilized by a second-order sliding mode algorithm. A describing function of the nonlinearity including a sample and hold element is derived. The proposed method allows to predict the amplitude, frequency and phase of occurring limit cycles caused by the discrete time implementation of discontinuous control algorithms. It is shown that the derived describing function is closely related to its classical continuous time counterpart. The proposed approach is demonstrated using a numerical simulation example as well as a real world experiment. © 2016 IEEE.


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