Adaptive Fuzzy Output Feedback Fault-Tolerant Compensation for Uncertain Nonlinear Systems With Infinite Number of Time-Varying Actuator Failures and Full-State Constraints

Jing, Yan-Hui; Yang, Guang‐Hong

doi:10.1109/tcyb.2019.2904768

Cited by 55 publications

(21 citation statements)

References 55 publications

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“…In fact, faults widely exist in practical systems, such as mechanical and physical systems, aircraft systems and so on. Fault problems include sensor fault, actuator bias faults, gain faults, loss-ofeffectiveness and actuator lock-in-place [18][19][20][21][22][23]. [19] focus on loss-of-effectiveness fault and float fault of actuator for uncertain nonlinear systems.…”

Section: Introductionmentioning

confidence: 99%

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Fuzzy Command Filtered Backstepping Control for Nonlinear System With Nonlinear Faults

Sheng

Zhang

2021

IEEE Access

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This paper investigates command filter backstepping fault-tolerant control for a class of nonlinear systems with nonlinear faults. In particular, the system nonlinear faults are non-affine, which are handled by the filtered signal and fuzzy logic systems approximate Lemma. Command filter is used in this paper, which eliminates the "explosion of complexity" of the classical backstepping and compensates the output of the filter to the derivative of the virtual control. In addition, the controller design procedure has been shown in detail, while the stability of the closed-loop system and the convergence of the tracking error are proved via Lyapunov Theorem. Simulation examples are given to illustrate the feasibility and effectiveness of the proposed scheme.

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Section: Introductionmentioning

confidence: 99%

“…[19] focus on loss-of-effectiveness fault and float fault of actuator for uncertain nonlinear systems. Both Loss-of-effectiveness and actuator lock-in-place faults has been simultaneity considered in [20]. Partial fault and an offset fault has been settled in [21].…”

Section: Introductionmentioning

confidence: 99%

Fuzzy Command Filtered Backstepping Control for Nonlinear System With Nonlinear Faults

Sheng

Zhang

2021

IEEE Access

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“…A fault tolerant scheme is an effective approach to solve the problem of actuator failures and it can ensure the desired performance by combing the proper controller with an approximation technique [42], [43]. Jing et al [44] investigated an adaptive fuzzy observer-based fault tolerant tracking control for uncertain nonlinear systems which considered the unmatched external disturbances and actuator failure problems. Wang et al [45] suggested the output feedback fault tolerant control to improve the passenger comfort for the ASSs.…”

Section: Introductionmentioning

confidence: 99%

Design of an Adaptive Fuzzy Observer-Based Fault Tolerant Controller for Pneumatic Active Suspension With Displacement Constraint

Ahn²

2021

IEEE Access

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This paper proposes an adaptive fuzzy observer based fault tolerant controller for a pneumatic active suspension system considering unknown parameters, actuator failures, and displacement constraints. A pneumatic spring is used for a quarter car model to enhance the vibration attenuation performance. Since the pneumatic system contains uncertain nonlinearities, fuzzy logic systems are utilized to approximate unknown nonlinear functions of unmodeled dynamics and various masses of passengers. Besides, a nonlinear disturbance observer is proposed to estimate the effects of the actuator failures, approximation errors, and external disturbances. By utilizing the disturbance estimation and fuzzy approximation techniques, an adaptive fault tolerant control (FTC) is designed to enhance the output performance of the vehicle suspension. Meanwhile, the command filtered scheme is introduced to solve the explosion of complexity problem in the traditional backstepping approach by avoiding virtual controller derivatives. In contrast to previous results, the proposed control can handle the fault tolerant problem and ensure the tracking error of vertical displacement converges into a small-predefined boundary by introducing the prescribed performance function. Moreover, the stability of the closed-loop system is analyzed according to the Lyapunov theory. Finally, comparative simulation examples and experimental studies are performed on the active pneumatic suspension test bench to verify the feasibility of the proposed scheme.INDEX TERMS Active suspension systems (ASSs), nonlinear disturbance observer (NDOB), prescribed performance function (PPF), fuzzy logic systems (FLSs), command filtered control (CFC).

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“…For compensation of persistent actuator failures, for linear systems, the model reference adaptive control based methods can be extended for minimum phase linear systems, as stated in Reference 12, and an adaptive LQ based failure compensation method is designed for possibly nonminimum phase systems in Reference 16. Moreover, for nonlinear systems, related adaptive control results can be seen in References 17‐21. In References 17‐19, the adaptive control method is developed for parametric strict feedback nonlinear systems with an infinite number of actuator failures.…”

Section: Introductionmentioning

confidence: 99%

“…In References 17‐19, the adaptive control method is developed for parametric strict feedback nonlinear systems with an infinite number of actuator failures. In References 20,21, adaptive fuzzy control based compensation scheme is studied for uncertain nonlinear systems. In References 22, an adaptive backstepping based failure compensation design is studied through complying infinite actuator failures with independent Markovian processes.…”

Section: Introductionmentioning

confidence: 99%

Adaptive compensation of persistent actuator failures of nonlinear systems

Tao

Jiang

2020

Adaptive Control & Signal

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Summary In this article, adaptive compensation designs are developed for nonlinear systems with uncertainties from the system functions and persistent actuator failures of characterizations that (i) some unknown system inputs are stuck at some unknown fixed or varying values at unknown time instants and (ii) the failure pattern always switches from one to another and the switching does not stop. Such a controlled plant is described by an uncertain time‐varying nonlinear system, and some robust adaptive feedback linearization based failure compensation results are studied for closed‐loop system stabilization and bounded output tracking for some specific conditions. To improve the tracking performance in the presence of persistent actuator failures, a new adaptive control scheme is developed, using the failure indicator function which contains the failure pattern and failure time in the formulation. Detailed stability and tracking performance are shown. Simulation results are shown to verify the effectiveness of the proposed adaptive actuator failure compensation method.

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Adaptive Fuzzy Output Feedback Fault-Tolerant Compensation for Uncertain Nonlinear Systems With Infinite Number of Time-Varying Actuator Failures and Full-State Constraints

Cited by 55 publications

References 55 publications

Fuzzy Command Filtered Backstepping Control for Nonlinear System With Nonlinear Faults

Fuzzy Command Filtered Backstepping Control for Nonlinear System With Nonlinear Faults

Design of an Adaptive Fuzzy Observer-Based Fault Tolerant Controller for Pneumatic Active Suspension With Displacement Constraint

Adaptive compensation of persistent actuator failures of nonlinear systems

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