Active fault-tolerant control design for Takagi-Sugeno fuzzy systems

Dziekan, Łukasz; Witczak, Marcin; Korbicz, Józef

doi:10.2478/v10175-011-0013-2

Cited by 32 publications

(21 citation statements)

References 20 publications

(26 reference statements)

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“…The effectiveness of the proposed method is demonstrated through its application to a two degree of freedom helicopter subject to actuator faults. It will be shown that these results clearly recommend the proposed approach for the purpose of active FTC [7,10,49].…”

Section: Introductionmentioning

confidence: 59%

An LMI approach to robust fault estimation for a class of nonlinear systems

Witczak

Buciakowski

Puig

et al. 2015

Int. J. Robust. Nonlinear Control

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SUMMARYThe paper presents a robust fault estimation approach for a class of non-linear discrete-time systems. In particular, two sources of uncertainty are present in the considered class of systems, i.e., an unknown input and an exogenous external disturbance. Thus, apart from simultaneous state and fault estimation, the objective is to decouple the effect of an unknown input while minimizing the influence of the exogenous external disturbance within the H∞ framework. The resulting design procedure guarantees that a prescribed disturbance attenuation level is achieved with respect to the state and fault estimation error while assuring the convergence of the observer. The core advantage of the proposed approach is its simplicity by reducing the fault estimation problem to matrix inequalities formulation. In addition, the design conditions ensure the convergence of the observer with guaranteed H∞ performance. The effectiveness of the proposed approach is demonstrated by its application to a Twin Rotor MIMO System.

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Section: Introductionmentioning

confidence: 59%

An LMI approach to robust fault estimation for a class of nonlinear systems

Witczak

Buciakowski

Puig

et al. 2015

Int. J. Robust. Nonlinear Control

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“…1 for a scheme illustrating the virtual actuator FTC concept). Initially proposed in a state-space formulation for LTI systems [13], this active FTC strategy has been successfully extended to linear parameter varying (LPV) [14], Takagi-Sugeno [15], piecewise affine [16], Lipschitz [17] and Hammerstein-Weiner [18] systems. An equivalent formulation in input-output form has been recently proposed in [19].…”

Section: Introductionmentioning

confidence: 99%

A virtual actuator approach for the fault tolerant control of unstable linear systems subject to actuator saturation and fault isolation delay

Rotondo

Ponsart

Theilliol

et al. 2015

Annual Reviews in Control

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This paper presents a fault tolerant control (FTC) strategy for unstable linear systems subject to actuator saturation and fault isolation delay. The solution relies on virtual actuators, an active fault-hiding method that reconfigures the faulty plant instead of the controller. The main contribution of the paper consists in the design of the virtual actuators with guarantees that, if at the fault isolation time the closed-loop system state is inside a region defined by a value of the Lyapunov function, the state trajectory will converge to zero despite the appearance of faults within a predefined set. In addition, the design of the nominal controller is performed so as to maximize the tolerated delay between the fault occurence and its isolation. Finally, the theoretical results are demonstrated using an example.

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“…When the reconfiguration block aims at tolerating actuator faults, it is named virtual actuator. Initially proposed in a state space form for LTI systems (Lunze and Steffen, 2006), this paradigm has been successfully extended to other system structures (Rotondo Dziekan et al, 2011;Richter et al, 2011;Blesa et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Fault Tolerant Control of a PEM Fuel Cell using qLPV Virtual Actuators

2015

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Abstract:This paper proposes a fault tolerant control (FTC) strategy based on the use of quasi-linear parameter varying (qLPV) virtual actuators approach for proton exchange membrane (PEM) fuel cells. The overall solution relies on adding a virtual actuator in the control loop to hide the fault from the controller point of view, allowing it to see the same plant as before the fault, in this way keeping the stability and some desired performances. The proposed methodology is based on the use of a reference model, where the resulting nonlinear error model is brought to a qLPV form that is used for control design by means of linear matrix inequalities (LMI)-based techniques. The resulting closed-loop error system is stable with poles placed in some desired region of the complex plane. Simulation results are used to show the effectiveness of the proposed approach.

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Active fault-tolerant control design for Takagi-Sugeno fuzzy systems

Cited by 32 publications

References 20 publications

An LMI approach to robust fault estimation for a class of nonlinear systems

An LMI approach to robust fault estimation for a class of nonlinear systems

A virtual actuator approach for the fault tolerant control of unstable linear systems subject to actuator saturation and fault isolation delay

Fault Tolerant Control of a PEM Fuel Cell using qLPV Virtual Actuators

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