Robust observer based Fault Tolerant Tracking Control for T–S uncertain systems subject to sensor and actuator faults

Makni, Salama; Bouattour, Maha; Chaabane, Mohamed

doi:10.1016/j.isatra.2018.11.022

Cited by 28 publications

(18 citation statements)

References 30 publications

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“…It is shown that the implementation of our designed PID-AFTTC closed loop system for the studied hydraulic system leads to ensure trajectories tracking with good accuracy and rapidity contrary to the responses of the FTTC 11 which do not pursue the trajectories properly, especially in terms of precision and rapidity.…”

Section: F I G U R Ementioning

confidence: 97%

“…• From the LPV descriptor system (11) and the model reference (12), compute the following constant matrices: Ē, Āi , Bi , Di and Ci .…”

Section: Stability Analysismentioning

confidence: 99%

“…Comparisons of the reference level l r 2 (t) with the real one l 2 (t) in the cases using the PID-AFTTC and an FTTC 11 Reference liquid level l r 2 (t)…”

Section: F I G U R Ementioning

confidence: 99%

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Descriptor observer‐based sensor and actuator fault tolerant tracking control design for linear parameter varying systems

Rabaoui

Hamdi

Braïek

et al. 2020

Intl J Robust & Nonlinear

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This article investigates the design of a descriptor observer (DO)-based sensor and actuator fault (SAF) tolerant tracking control for linear parameter varying (LPV) systems with LPV outputs and disturbed by unknown inputs. The fault tolerant tracking control closed loop system is made of: a DO, a proportional integral derivative (PID) AF tolerant tracking controller, and a sensor fault compensation block. The proposed approach gives a solution to the tracking control problem for this class of systems where the observer and the controller gain matrices can be obtained by solving an optimization problem. The main advantages of this approach with regard to previous approaches are getting around a critical situation which is that the studied LPV system is subject to SAFs simultaneously and unknown inputs, with less conservative results and improving trajectory tracking performances especially in terms of accuracy and rapidity. The performances of the proposed approach are compared to a previous study through a numerical example which is carried out on an hydraulic system.

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Section: F I G U R Ementioning

confidence: 97%

“…• From the LPV descriptor system (11) and the model reference (12), compute the following constant matrices: Ē, Āi , Bi , Di and Ci .…”

Section: Stability Analysismentioning

confidence: 99%

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Descriptor observer‐based sensor and actuator fault tolerant tracking control design for linear parameter varying systems

Rabaoui

Hamdi

Braïek

et al. 2020

Intl J Robust & Nonlinear

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“…Remark In our work, 26 we have studied the problem of observer‐based FTTC for nonlinear systems by considering the nominal system as a reference model. Thus, the technique which we proposed, can be applied only for uncertain nonlinear systems which have a stable nominal behavior.…”

Section: Robust Fault Estimationmentioning

confidence: 99%

“…Moreover, authors in References 22,23 have proposed an observer‐based FTTC for T‐S systems in presence of actuator and sensor faults for only constant ones. Furthermore, authors in References 20,24‐26 have considered the nominal system as reference model. Nevertheless, this method cannot ensure the trajectory tracking when the nominal system is unstable.…”

Section: Introductionmentioning

confidence: 99%

Robust fault estimation and fault‐tolerant tracking control for uncertain Takagi–Sugeno fuzzy systems: Application to single link manipulator

Makni

Bouattour

Chaabane

2021

Adaptive Control & Signal

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Summary This article concerns the estimation and tracking control problems for Takagi–Sugeno systems with disturbances and norm bounded uncertainties in presence of sensor and actuator faults (SAF). First, we propose a robust fuzzy observer (RFO) design method to estimate both state and SAF for the considered class of the nonlinear systems. Then, this RFO‐based fault tolerant tracking control is developed not only to compensate the SAF effects but also to ensure the state convergence to desired trajectories in spite of their presence. To reduce the conservatism of design conditions, observer and controller gains are calculated in a single step by solving a set of linear matrix inequality constraints. H∞ criterion is used to attenuate disturbance effects and to reduce the tracking error. Finally, simulation results by considering two types of actuator fault and comparative study on a single link flexible joint manipulator are provided to underline the performances of the mentioned process.

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Observer‐based decentralized robust H_∞ output tracking control with preview action for uncertain and disturbed nonlinear interconnected systems

Liao

et al. 2021

Asian Journal of Control

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The problem of observer‐based decentralized robust H∞ output tracking control with preview action in a class of uncertain and disturbed nonlinear interconnected systems is investigated in this study. The considered interconnected system consists of several subsystems with nonlinear interconnections, parametric uncertainties, and external disturbances. Based on the augmented error system approach combined with Lyapunov stability theory and special matrix inequality linearization techniques, a sufficient condition for the existence of a decentralized observer‐based robust H∞ output feedback preview controller is derived for the original interconnected system in terms of linear matrix inequality (LMI) formulations. The gain matrices of the tracking controller and state observer are derived using only a one‐step LMI procedure, which overcomes the drawbacks of some multistep iterative algorithms. Finally, the effectiveness of the proposed control scheme is validated using a numerical example.

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Robust observer based Fault Tolerant Tracking Control for T–S uncertain systems subject to sensor and actuator faults

Cited by 28 publications

References 30 publications

Descriptor observer‐based sensor and actuator fault tolerant tracking control design for linear parameter varying systems

Descriptor observer‐based sensor and actuator fault tolerant tracking control design for linear parameter varying systems

Robust fault estimation and fault‐tolerant tracking control for uncertain Takagi–Sugeno fuzzy systems: Application to single link manipulator

Observer‐based decentralized robust H_∞ output tracking control with preview action for uncertain and disturbed nonlinear interconnected systems

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Robust observer based Fault Tolerant Tracking Control for T–S uncertain systems subject to sensor and actuator faults

Cited by 28 publications

References 30 publications

Descriptor observer‐based sensor and actuator fault tolerant tracking control design for linear parameter varying systems

Descriptor observer‐based sensor and actuator fault tolerant tracking control design for linear parameter varying systems

Robust fault estimation and fault‐tolerant tracking control for uncertain Takagi–Sugeno fuzzy systems: Application to single link manipulator

Observer‐based decentralized robust H∞ output tracking control with preview action for uncertain and disturbed nonlinear interconnected systems

Contact Info

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Observer‐based decentralized robust H_∞ output tracking control with preview action for uncertain and disturbed nonlinear interconnected systems