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Author:

Lv, M. (Lv, M..) | Ahn, C.K. (Ahn, C.K..) | Zhang, B. (Zhang, B..) | Fu, A. (Fu, A..)

Indexed by:

EI Scopus SCIE

Abstract:

This paper proposes a distributed fixed-time fault-tolerant control methodology for networked six-degree-of-freedom fixed-wing UAVs whose models are subjected to actuator faults and saturation. Two fixed-time anti-saturation control strategies were developed for velocity and attitude channels. Notably, the adverse effects of actuator faults (e.g., lock-in-place, and loss of effectiveness) and actuator saturation could be effectively compensated for by means of a new adaptive-gain-based design. This feature differs significantly from most existing fault-tolerant control schemes. A fixed-time-based sliding mode surface was delicately embedded in the control design in order to provide the attitude channel with the fixed-time tracking property. Model uncertainties and external disturbances could be effectively handled by using a bound estimation method and smooth functions. On the basis of Lyapunov stability theory, the closed-loop system is shown to be stable in the sense of the fixed-time concept. Actuator saturations were rigorously enforced, and the tracking errors of velocity and attitude converged to a residual set around the origin within a fixed time in spite of model uncertainties, external disturbances, and actuator faults. Numerical examples were carried out to validate the effectiveness of the theoretical findings. IEEE

Keyword:

unmanned aerial vehicles Attitude control Control design Actuators Fault tolerance fixed-time control actuator saturation Actuator failure Autonomous aerial vehicles Fault tolerant systems Convergence

Author Community:

  • [ 1 ] [Lv M.]College of Air Traffic Control and Navigation, Air Force Engineering University, Xi'an, China
  • [ 2 ] [Ahn C.K.]School of Electrical Engineering, Korea University, Seoul, South Korea
  • [ 3 ] [Zhang B.]Beijing Blue Sky Science and Technology Innovation Center, Beijing, China
  • [ 4 ] [Fu A.]Faculty of Information Technology, Beijing University of Technology and Beijing Laboratory of Smart Environmental Protection, Beijing, China

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Source :

IEEE Transactions on Aerospace and Electronic Systems

ISSN: 0018-9251

Year: 2023

Issue: 6

Volume: 59

Page: 1-13

4 . 4 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:19

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 42

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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