Fuzzy model based fault estimation and fault tolerant control for flexible spacecraft with unmeasurable vibration modes

Li, Yanbo; Xu, Wei; Chang, Lin

doi:10.1049/cth2.12357

Cited by 4 publications

(1 citation statement)

References 46 publications

(139 reference statements)

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“…In particular, [22] has presented a new approach that could overcome previous assumptions through a new adaptive dynamic proportionalintegral observer. Furthermore, the fault estimation technique was applied in [23] to an actual spacecraft application model, and the fault estimation results were analyzed. In [24], the fault estimation technique was achieved using type-2 polynomial fuzzy systems and expanded to fault tolerant control by combining it with the control technique.…”

Section: Introductionmentioning

confidence: 99%

Sampled-Data Fuzzy Fault Estimation Observer Design for Nonlinear Systems

Koo

2023

IEEE Access

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In this study, a sampled-data fuzzy fault estimation observer design problem is considered for nonlinear systems. The main idea of this study is to solve the sampled-data output problem by using two approaches of approximate discretization and exact discrete-time design. Especially, in the exact discretetime design approach, the discretization error problem is solved, and the estimation error is minimized over whole time interval. Based on the above idea, the fuzzy fault estimation observer uses the Takagi-Sugeno fuzzy model to address the fuzzy fault estimation technique, and the fault estimation conditions with an H ∞ performance are guaranteed. Next, sufficient conditions of the proposed fault estimation techniques are converted into linear matrix inequality formats. Finally, two examples of circuit and oscillator systems are provided, and the effectiveness of the proposed fault estimation techniques is verified from results of the simulation.

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Section: Introductionmentioning

confidence: 99%

Sampled-Data Fuzzy Fault Estimation Observer Design for Nonlinear Systems

Koo

2023

IEEE Access

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Robust fault‐tolerant cooperative control for a class of interconnected systems with actuator faults based on dynamic event‐triggered

Wang,

Sun,

Huang

et al. 2024

Intl J Robust & Nonlinear

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In this paper, the problem of fault estimation (FE) and fault‐tolerant control (FTC) for a class of systems with dynamic event‐triggered mechanism (ETM) and time delay in a network environment is studied. To shorten the time between events and minimize the amount of data transmitted, this paper introduces dynamic variables within the ETM. In order to ensure the interval between the system state and its estimation, a fault/state estimation observer considering time delay is designed, which improves the reliability and security of the system. On this basis, a fault‐tolerant controller considering time delay is constructed to compensate the impact of faults on the system. The observer, controller, and ETM are co‐designed to maintain system performance. By making full use of the information between subsystems, a continuous time interconnection systems is constructed and the cooperative control mechanism is redesigned on the basis of the above system. Through theoretical analysis, it has been demonstrated that Zeno phenomenon does not exist in the ETM in this paper. Finally, the main results are verified by numerical simulation, and the validity of the conclusions is demonstrated.

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Decentralized Fuzzy Fault Estimation Observer Design for Discrete-Time Nonlinear Interconnected Systems

Koo

2024

Electronics

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In this paper, a fault estimation technique is proposed for discrete-time nonlinear interconnected systems with uncertain interconnections. To achieve the fault estimation, the decentralized fuzzy observer is adopted based on the Takagi–Sugeno fuzzy model. Based on the estimation error model with the subsystems of the interconnected system and its decentralized fuzzy observer, the fault estimation condition with H∞ performance is presented. The main idea of this paper is that a novel inequality condition for H∞ performance is used, and the sufficient condition is presented to guarantee the good fault estimation performance. Also, the decentralized fuzzy observer design condition for the fault estimation is converted into linear matrix inequality formats. Finally, a simulation example is provided, and the effectiveness of the proposed fault estimation technique is verified by comparison of the fault estimation performance.

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Fuzzy model based fault estimation and fault tolerant control for flexible spacecraft with unmeasurable vibration modes

Cited by 4 publications

References 46 publications

Sampled-Data Fuzzy Fault Estimation Observer Design for Nonlinear Systems

Sampled-Data Fuzzy Fault Estimation Observer Design for Nonlinear Systems

Robust fault‐tolerant cooperative control for a class of interconnected systems with actuator faults based on dynamic event‐triggered

Decentralized Fuzzy Fault Estimation Observer Design for Discrete-Time Nonlinear Interconnected Systems

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