2021 |
Dadi, Leila; Ethabet, Haifa; Aoun, Mohamed Zonotope based Fault Tolerant Control for Discrete-Time Linear Time-Invariant Systems Conférence 2021, (Cited by: 1). Résumé | Liens | BibTeX | Étiquettes: Actuators, Control problems, Discrete time control systems, Discrete-time linear time-invariant systems, Estimation techniques, Fault tolerance, Faults tolerant controls, H ∞, H∞approach, Interval estimation, Invariance, Linear control systems, Linear time-invariant system, Observers designs, Time invariant systems, Time varying control systems, Zonotopes @conference{Dadi2021144b, This paper considers Faut Tolerant Control (FTC) problem for discrete-time Linear Time-Invariant systems (LTI) affected by faults on actuator. First, zonotope-based interval estimation technique is proposed, which integrate robust observer design with zonotopic analysis. By introducing H∞ performances in the observer design, the designed technique reduce the effects of uncertainties and improve the interval estimation accuracy. Based on the robust designed observer, the interval state estimation can be realized via a zonotopic analysis. Second, a FTC is designed to stabilize the close-loop system subject to actuator faults. The control law design is based on zonotopic technique, guaranteeing closed-loop stability. Simulation results are provided to illustrate the performance of the proposed method. © 2021 IEEE. |
2016 |
Lamouchi, R.; Raïssi, T.; Amairi, M.; Aoun, M. Fault tolerant control in a set-membership framework Conférence 2016, (Cited by: 3). Résumé | Liens | BibTeX | Étiquettes: Actuator fault, Actuators, Bounded disturbances, Bounded noise, Control laws, Control methods, Control strategies, Fault tolerance, Faults tolerant controls, Interval observers, Linear control systems, Linear time-invariant system, Numerical methods, Set-membership, State feedback @conference{Lamouchi20161099b, In this paper, a Passive Fault Tolerant Control (PFTC) strategy for Linear Time Invariant (LTI) systems subject to actuator faults is proposed. The idea of this PFTC method is to compute a control law to cope with additive actuator faults using interval observers. The considered system is assumed to be subject to bounded noises and disturbances without any additional assumptions. The FTC is implemented as a state linear feedback control and designed using interval observers techniques. A numerical example shows the efficiency of the proposed technique. © 2016 EUCA. |
2007 |
Tellili, A.; Abdelkrim, M. N.; Benrejeb, M. Reliable H∞ control of multiple time scales singularly perturbed systems with sensor failure Article de journal Dans: International Journal of Control, vol. 80, no. 5, p. 659-665, 2007, ISSN: 00207179, (cited By 27). Résumé | Liens | BibTeX | Étiquettes: Asymptotic stability; Control system analysis; Linear algebra; Perturbation techniques; Riccati equations; Sensors, Full order systems; Sensor failure; Subsystems; Time scale decomposition, Linear control systems @article{Tellili2007659, This paper studies the reliable H control for linear time-invariant multiparameter singularly perturbed systems against sensor failures. By time-scale decomposition, the full-order system is decomposed into slow and fast subsystems. After designing a reliable H controller for the global system, three reduced reliable H sub-controllers based on the slow and fast problems are obtained through the manipulation of the algebraic Riccati equations. The resulting control systems are reliable in that they provide guaranteed asymptotic stability and H performance when all control components are operational as well as when sensor failures occur. |
2004 |
Malti, Rachid; Aoun, Mohamed; Oustaloup, Alain Synthesis of fractional Kautz-like basis with two periodically repeating complex conjugate modes Conférence 2004, (Cited by: 19). Résumé | Liens | BibTeX | Étiquettes: Approximation theory, Differential equations, Dynamical systems, Extrapolation, Fractional calculus, Fractional derivatives, Generalized orthogonal basis (GOB), Identification (control systems), Laplace transforms, Linear control systems, Mathematical models, Model reduction, Orthogonal functions, Polynomials, Set theory, System stability, Transfer functions @conference{Malti2004835b, Fractional Kautz-like functions are synthesized extrapolating the definition of classical Kautz functions to fractional derivatives. The synthesized bases has two periodically repeating complex conjugate modes. The new basis extends the definition of the fractional Laguerre basis, by allowing the modes to be complex. An example is then provided in system identification context. |
Malti, Rachid; Aoun, Mohamed; Oustaloup, Alain Synthesis of fractional Kautz-like basis with two periodically repeating complex conjugate modes Conférence 2004, (Cited by: 19). Résumé | Liens | BibTeX | Étiquettes: Approximation theory, Differential equations, Dynamical systems, Extrapolation, Fractional calculus, Fractional derivatives, Generalized orthogonal basis (GOB), Identification (control systems), Laplace transforms, Linear control systems, Mathematical models, Model reduction, Orthogonal functions, Polynomials, Set theory, System stability, Transfer functions @conference{Malti2004835, Fractional Kautz-like functions are synthesized extrapolating the definition of classical Kautz functions to fractional derivatives. The synthesized bases has two periodically repeating complex conjugate modes. The new basis extends the definition of the fractional Laguerre basis, by allowing the modes to be complex. An example is then provided in system identification context. |
Publications
2021 |
Zonotope based Fault Tolerant Control for Discrete-Time Linear Time-Invariant Systems Conférence 2021, (Cited by: 1). |
2016 |
Fault tolerant control in a set-membership framework Conférence 2016, (Cited by: 3). |
2007 |
Reliable H∞ control of multiple time scales singularly perturbed systems with sensor failure Article de journal Dans: International Journal of Control, vol. 80, no. 5, p. 659-665, 2007, ISSN: 00207179, (cited By 27). |
2004 |
Synthesis of fractional Kautz-like basis with two periodically repeating complex conjugate modes Conférence 2004, (Cited by: 19). |
Synthesis of fractional Kautz-like basis with two periodically repeating complex conjugate modes Conférence 2004, (Cited by: 19). |