A new estimation/decoupling approach for robust observer-based fault reconstruction in nonlinear systems affected by simultaneous time varying actuator and sensor faults

Hadi, Ali Saad; Shaker, Montadher Sami

doi:10.1016/j.jfranklin.2020.05.001

Cited by 17 publications

(10 citation statements)

References 30 publications

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“…The inequality ( 13) can be converted to (14) by introducing an adjustable parameter matrix H, which is helpful to constrain fault derivatives and other bounded uncertainties in the estimation error dynamic so as to ensure that the state of corresponding system can converge to smaller range. In fact, when H = I, the stability condition in Lemma 1 reduces to the form obtained in [4,7].…”

Section: Remarkmentioning

confidence: 99%

“…In the field of fault diagnosis, fault estimation (FE) technique can obtain more exact fault information such as size and shape so as to perform desired fault detection alternately, which has become an important research topic. In recent years, the field of fault estimation has been fully developed by the efforts of scholars, such as the robust observers (RO) [1,14], adaptive observers (AO) [15][16][17], sliding mode observers [18,19], and other estimation observers, [4,7,20,21] and so on.…”

Section: Introductionmentioning

confidence: 99%

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Fault decomposition-based convergent FE and FTC for Lipschitz nonlinear systems

Wang

Huang

2023

Nonlinear Dyn

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The problem of fault estimation and fault tolerant control for Lipschitz nonlinear systems subject to actuator and sensor faults is investigated in this paper. A fault decomposition technique is introduced to design a set of iterative estimation observers for the system in consideration. The obtained mean sequence of estimates, under certain conditions, converge to the true values of state and multi-faults. A convergence theory with a theoretical proof is given. A sufficient LMIbased stability condition dependent on the coefficient matrix of disturbance is proposed to determined the observer gains. Finally, an output feedback FTC is designed to stabilize the Lipschitz nonlinear system. The longitudinal dynamics of an aircraft is applied to test the proposed method.

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Section: Remarkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fault decomposition-based convergent FE and FTC for Lipschitz nonlinear systems

Wang

Huang

2023

Nonlinear Dyn

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“…Assumption Considering the limitations of the maneuvering ability of the actuator in the actual physical environment, such as the damped rudder control in the aircraft, and the high order derivatives limitation of the fault model in References 32 and 33, this article assumes the derivative of multiplicative and additive actuator fault are bounded, in particular,

{\dot{ρ}}_{i}^{2} \leq Θ < \infty,

‖{\dot{ϕ}}_{i}‖ \leq {\overset{true‾}{ϕ}}_{0} < \infty

.…”

Section: Problem Formulation and Preliminariesmentioning

confidence: 99%

Distributed neuroadaptive monitoring fault‐tolerant consensus control for nonlinear multi‐agent systems with actuator faults

Yang²,

Ma³

et al. 2022

Intl J Robust & Nonlinear

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This article proposes a distributed neuroadaptive monitoring fault-tolerant consensus control scheme for a class of uncertain, nonlinear, strict feedback multi-agent systems which have actuator faults and all the control coefficients in them are unknown. This scheme provides each agent with a local monitor combined with the actuator switching to solve actuator failure. Simultaneously, it guarantees the tracking error satisfies the prescribed transient and steady-state performance, even if there exist actuators switching. Furthermore, the time varying asymmetric Barrier Lyapunov function (BLF) and the auxiliary system are used to analyze input and output constraints' influence. Under the action of aforementioned control scheme, closed-loop systems can be stable and semiglobal uniform boundedness. Additionally, its efficacy can be proved in numerical simulation.

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“…(i) This paper creatively considers incipient faults in nonlinear MASs with disturbances, parameter uncertainties, and time delay simultaneously. Meanwhile, based on the fixed communication topology, [40][41][42][43] we consider the more practical switching communication topology. Few nonlinear MASs with switching topology simultaneously consider so many influencing factors in the existing literature.…”

Section: Introductionmentioning

confidence: 99%

Distributed extended state observer‐based fault‐tolerant control for nonlinear multi‐agent systems with switching topologies

Hua,

Dai,

Sun

et al. 2023

Intl J Robust & Nonlinear

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In this paper, a novel fault‐tolerant control scheme is designed and analyzed for multi‐agent systems (MASs) with incipient faults, disturbances, parameter uncertainties, time delay, and nonlinear terms, and the proposed MAS with switching communication topologies. Firstly, the proposed distributed extended state observer estimates the incipient fault and system states in follower agents, which extends the incipient fault vector to a new system state. Meanwhile, the designed observer considers the output errors of itself and other agents. Further, a state estimation feedback‐based fault‐tolerant controller is constructed, composed of a delay estimator and a non‐delay estimator to guarantee the proposed MASs have good operation performance. Then, some stability analysis conclusions of the MAS with incipient faults, time delay, disturbances, parameter uncertainties, and nonlinear terms are obtained. The proposed results can also be applied to practical systems like the wireless power transfer system. Finally, two simulation results are provided to demonstrate the effectiveness of the proposed fault‐tolerant control technique.

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A new estimation/decoupling approach for robust observer-based fault reconstruction in nonlinear systems affected by simultaneous time varying actuator and sensor faults

Cited by 17 publications

References 30 publications

Fault decomposition-based convergent FE and FTC for Lipschitz nonlinear systems

Fault decomposition-based convergent FE and FTC for Lipschitz nonlinear systems

Distributed neuroadaptive monitoring fault‐tolerant consensus control for nonlinear multi‐agent systems with actuator faults

Distributed extended state observer‐based fault‐tolerant control for nonlinear multi‐agent systems with switching topologies

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