Interval observer-based fault-tolerant control for a class of positive Markov jump systems

X Song, J Lam, B Zhu, C Fan - Information Sciences, 2022 - Elsevier
The problem of fault-tolerant controller design for positive Markov jump systems subject to
interval uncertainties and time-varying actuator faults is investigated in this paper. First …

On interval observer design for active fault tolerant control of linear parameter-varying systems

R Lamouchi, T Raissi, M Amairi, M Aoun - Systems & Control Letters, 2022 - Elsevier
This paper proposes an active Fault Tolerant Control (FTC) scheme for polytopic uncertain
Linear Parameter-Varying (LPV) systems subject to uncertainties and actuator faults. First, a …

Stealthy attacks and attack-resilient interval observers

KH Degue, J Le Ny, D Efimov - Automatica, 2022 - Elsevier
Industrial control systems have been frequent targets of cyber attacks during the last decade.
Adversaries can hinder the safe operation of these systems by tampering with their sensors …

Unknown input interval observers for discrete-time linear switched systems

G Marouani, TN Dinh, T Raissi, X Wang… - European Journal of …, 2021 - Elsevier
This paper deals with unknown input interval observer synthesis for discrete-time switched
systems. First, a decomposition leading to obtain a subsystem not affected by the unknown …

Sensor fault detection for switched systems using interval observer with L∞ performance

C Zammali, J Van Gorp, Z Wang, T Raïssi - European Journal of Control, 2021 - Elsevier
This paper deals with sensor fault detection (FD) for discrete-time switched systems subject
to bounded disturbances. A novel approach is investigated to construct residual framers …

[HTML][HTML] Union and intersection operators for thick ellipsoid state enclosures: Application to bounded-error discrete-time state observer design

A Rauh, A Bourgois, L Jaulin - Algorithms, 2021 - mdpi.com
Thick ellipsoids were recently introduced by the authors to represent uncertainty in state
variables of dynamic systems, not only in terms of guaranteed outer bounds but also in terms …

Active fault tolerant control using zonotopic techniques for linear parameter varying systems: Application to wind turbine system

R Lamouchi, M Amairi, T Raïssi, M Aoun - European Journal of Control, 2022 - Elsevier
This paper deals with the design of an Active Fault Tolerant Control (AFTC) approach for
polytopic uncertain Linear Parameter-Varying (LPV) systems subject to uncertainties and …

Zonotope-based interval estimation for discrete-time linear switched systems

W Zhang, Z Wang, T Raïssi, TN Dinh, GM Dimirovski - IFAC-PapersOnLine, 2020 - Elsevier
This paper is concerned with the interval estimation for discrete-time linear switched systems
affected by unknown disturbances and noises. A novel interval estimation approach is …

Zonotopic Kalman filter-based interval estimation for discrete-time linear systems with unknown inputs

T Chevet, TN Dinh, J Marzat, Z Wang… - IEEE Control Systems …, 2021 - ieeexplore.ieee.org
This letter proposes an unknown input zonotopic Kalman filter-based interval observer for
discrete-time linear time-invariant systems. In such contexts, a change of coordinates …

Optimal state estimation and fault diagnosis for a class of nonlinear systems

H Kazemi, A Yazdizadeh - IEEE/CAA Journal of Automatica …, 2020 - ieeexplore.ieee.org
This study proposes a scheme for state estimation and, consequently, fault diagnosis in
nonlinear systems. Initially, an optimal nonlinear observer is designed for nonlinear systems …