Robust Actuator and Sensor Faults Reconstruction Based on New Sliding Mode Observer for a Class of Output Time-Delay Systems

Cherni, Houaida; Boulaabi, Iskander; Sellami, Anis; Hmida, Fayçal Ben

doi:10.1080/03772063.2016.1196123

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…The fault studied in this paper occurs in actuators. According to a previous study [19], assumption 2.3 is reasonable and is equivalent to considering a matrix G * ∈ R m×n , implying that BG * + G = 0 and E 2 G * + E 3 = 0 hold. Lemma 2.1: [20]: Y is assumed to be a symmetric matrix, where D and E are matrices of appropriate dimensions.…”

Section: Assumption 23: Rank(b G) = Rank(b) and Rankmentioning

confidence: 99%

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Fault diagnosis and fault-tolerant control for system with fast time-varying delay

Zhao

Liu

et al. 2019

Automatika

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This paper proposes a fault diagnosis and fault-tolerant control method for a system with a fast time-varying delay and time-varying parameters. A fault observer is designed to estimate faults, and an improved fast adaptive fault estimation (FAFE) algorithm is developed to reduce the relevant constraints in the general form of this algorithm. With newly introduced relaxation matrices, this study estimates faults in a system exhibiting a fast time-varying delay. Based on the estimated faults, an output feedback controller is designed to accommodate the faults. The fault-tolerant control is realized using the introduced relaxation matrices. An algorithm is derived to solve for the observer and controller. Finally, the theory and method are validated using a real example of a helicopter system.

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Section: Assumption 23: Rank(b G) = Rank(b) and Rankmentioning

confidence: 99%

“…Therefore, according to [21], the state and fault estimation errors are robust and stable. From ( 18), (19), and considering 0 the initial state, extension system (7) satisfies the…”

Section: Proofmentioning

confidence: 99%

Fault diagnosis and fault-tolerant control for system with fast time-varying delay

Zhao

Liu

et al. 2019

Automatika

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“…A sliding mode observer (SMO) is commonly used as a robust control solution for mode errors and measurement disturbances. For a class of uncertain time-delay systems, a robust SMO, which guarantees estimation error stability through the Lyapunov-Krasovskii function and the Linear Matrix Inequality (LMI) optimization, has been proposed [5,6]. An SMO with two discontinuous terms was designed to compensate for fault behavior and disturbance variation from the system state estimation.…”

Section: Introductionmentioning

confidence: 99%

Sensor Fault Reconstruction based on Adaptive Sliding Mode Observer for Forklift Fault-Tolerant Control System

Zhang

Xiao

2020

Applied Sciences

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For the problem of multiple sensor fault detection and reconstruction in the forklift fault-tolerant control system, a sliding mode observer (SMO) with adaptive regulation law is proposed. Based on the three-degree-of-freedom (3-DOF) model of forklift, a linear state equation with output disturbance is designed as its equivalent sensor fault model. The sensor fault is converted into an actuator fault by defining an auxiliary state variable as an output signal filter. Then the SMO-based method of sensor fault detection and reconstruction is given. Without knowing the upper bound of an unknown fault, an adaptive sliding mode observer (ASMO) can also be effective through the adaptive algorithm. Finally, experimental results further verify the effectiveness of the method, and provide a foundation for forklift fault-tolerant control.

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Design of Fast Variable Structure Adaptive Fuzzy Control for Nonlinear State-Delay Systems with Uncertainty

Montazeri

Yousefi

Shojaei

et al. 2020

IETE Journal of Research

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Robust Actuator and Sensor Faults Reconstruction Based on New Sliding Mode Observer for a Class of Output Time-Delay Systems

Cited by 5 publications

References 18 publications

Fault diagnosis and fault-tolerant control for system with fast time-varying delay

Fault diagnosis and fault-tolerant control for system with fast time-varying delay

Sensor Fault Reconstruction based on Adaptive Sliding Mode Observer for Forklift Fault-Tolerant Control System

Design of Fast Variable Structure Adaptive Fuzzy Control for Nonlinear State-Delay Systems with Uncertainty

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