Second-order sliding-mode differentiators: an experimental comparative analysis using Van der Pol oscillator

Hafiz Ahmed, Héctor Ríos, Beshah Ayalew, Yongqiang Wang

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

5 Citas (Scopus)

Resumen

This article provides a comparative study of four different second-order sliding-mode (SOSM) differentiators proposed in the literature, namely, standard higher-order sliding-mode (HOSM) differentiator, non-homogeneous HOSM differentiator, uniform robust exact differentiator and hybrid fixed-time differentiator. Based on sliding-mode principles, these differentiators can provide robust exact differentiation with finite/fixed-time convergence. First, a comprehensive summary of the different methods is provided. Then, the differentiators are applied experimentally to estimate the states of a Van der Pol oscillator. Through experiments, it is shown that the different differentiators outperformed a Kalman-like observer, high-gain differentiator and extended Kalman filter. Finally, some suggestions are provided on the selection of SOSM differentiators for various applications.

Idioma originalInglés
Páginas (desde-hasta)2100-2112
Número de páginas13
PublicaciónInternational Journal of Control
Volumen91
N.º9
DOI
EstadoPublicada - 2 sep 2018

Nota bibliográfica

Publisher Copyright:
© 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.

Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.

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