Fixed-Time Fault-Tolerant Tracking Control of Fixed-Wing UAVs with Actuator Fault and Unmatched Disturbances

Wu, Zhonghua; Zheng, Shuaipeng

doi:10.1155/2022/6447812

Cited by 2 publications

(2 citation statements)

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“…At present, FTCC schemes are mainly developed based on the leader-follower formation [29][30][31] and distributed communication architectures [32][33][34]. In [35], a dynamic surface fixed-time FTC scheme, based on a neoteric disturbance observer, was proposed for fixed-wing UAVs against actuator faults and external disturbances. A fault detection observer was proposed by using the H∞ method for sensor faults in a multi-UAV system.…”

Section: Introductionmentioning

confidence: 99%

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Fault Detection and Fault-Tolerant Cooperative Control of Multi-UAVs under Actuator Faults, Sensor Faults, and Wind Disturbances

Yang

et al. 2023

Drones

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Fault detection (FD) and fault-tolerant cooperative control (FTCC) strategies are proposed in this paper for multiple fixed-wing unmanned aerial vehicles (UAVs) under actuator faults, sensor faults, and wind disturbances. Firstly, the faulty model is introduced while the effectiveness loss, deviation of thrust throttle setting, and pitot sensor faults are considered. Secondly, the faulty UAV model with wind disturbances is linearized and the system is then converted into two subsystems by using state and output transformations. Further, cooperative unknown input observers (UIOs) are developed to estimate the faults, disturbances, and states. By combining with the observers’ estimations, adaptive thresholds are designed to detect actuator and sensor faults in the system. Then, considering state constraints, a backstepping-based FTCC scheme is proposed for multiple UAVs (multi-UAVs) suffering from actuator faults, sensor faults, and wind disturbances. It is shown by Lyapunov analysis that the tracking errors are fixed-time convergent. Finally, the effectiveness of the FD and FTCC scheme is verified by numerical simulation.

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Section: Introductionmentioning

confidence: 99%

“…Differing from existing FTC strategies for fixed-wing UAVs [35][36][37], a backsteppingbased fixed-time FTCC scheme is proposed for multi-UAVs suffering from actuator faults, sensor faults, and wind disturbances.…”

mentioning

confidence: 99%

Fault Detection and Fault-Tolerant Cooperative Control of Multi-UAVs under Actuator Faults, Sensor Faults, and Wind Disturbances

Yang

et al. 2023

Drones

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Observer-based fault-tolerant fixed-time attitude tracking control for rigid spacecraft without angular velocity measurement

Zheng,

Zhang,

Wang

2024

Transactions of the Institute of Measurement and Control

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This paper investigates the problem of adaptive nonsingular fast terminal sliding mode fixed-time tracking control method for rigid spacecraft without angular velocity measurement. First, a novel fixed-time extended state observer is proposed to obtain accurate estimates of both unmeasurable angular velocities and integrated disturbance. Then, based on this sufficient qualification, an adaptive fast nonsingular terminal sliding mode controller is designed to make the state of the following spacecraft track a target spacecraft even when the tracking system has an actuator fault. Adaptive technology is introduced to compensate for the effect of observation error on the controller. Using the Lyapunov function and fixed-time property, it is proved that the control scheme can ensure that the attitude tracking error converges to the neighborhood of the origin in a fixed time and is independent of the initial conditions. Finally, numerical simulation examples are carried out to evaluate the effectiveness of the proposed fixed-time method.

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Fixed-Time Fault-Tolerant Tracking Control of Fixed-Wing UAVs with Actuator Fault and Unmatched Disturbances

Cited by 2 publications

References 32 publications

Fault Detection and Fault-Tolerant Cooperative Control of Multi-UAVs under Actuator Faults, Sensor Faults, and Wind Disturbances

Fault Detection and Fault-Tolerant Cooperative Control of Multi-UAVs under Actuator Faults, Sensor Faults, and Wind Disturbances

Observer-based fault-tolerant fixed-time attitude tracking control for rigid spacecraft without angular velocity measurement

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