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Observation and sliding mode observer for nonlinear fractional-order system with unknown input

Nadia Djeghali1, Said Djennoune1, Maamar Bettayeb2

  • 1Laboratoire de Conception et Conduite des Systèmes de Production, University Mouloud Mammeri, Tizi-Ouzou, Algeria.

ISA Transactions
|March 11, 2016
PubMed
Summary

This study introduces observability and left invertibility for nonlinear fractional-order systems, linking them to integer-order systems. It also proposes a sliding mode observer for fault detection and estimation in these systems, proving finite-time convergence.

Keywords:
Fault detection and estimationLeft invertibilityLyapunov stabilityNonlinear fractional-order systemsObservabilitySliding mode observers

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