1. Distributed adaptive fault-tolerant close formation flight control of multiple trailing fixed-wing UAVs.
- Author
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Yu, Ziquan, Zhang, Youmin, Jiang, Bin, Yu, Xiang, Fu, Jun, Jin, Ying, and Chai, Tianyou
- Subjects
FORMATION flying ,ARTIFICIAL satellite attitude control systems ,ADAPTIVE control systems ,VERTICALLY rising aircraft ,MACHINE learning - Abstract
This paper considers the reliable control problem for multiple trailing fixed-wing unmanned aerial vehicles (UAVs) against actuator faults and wake vortices. A distributed adaptive fault-tolerant control (FTC) scheme is proposed by using a distributed sliding-mode estimator, dynamic surface control architecture, neural networks, and disturbance observers. The proposed control scheme can make all trailing fixed-wing UAVs converge to the leading UAV with pre-defined time-varying relative positions even when all trailing UAVs encounter the wake vortices generated by the leading UAV and a portion of trailing UAVs is subjected to the actuator faults. It is shown that under the proposed distributed FTC scheme, the tracking errors of all trailing UAVs with respect to their desired positions are bounded. Comparative simulation results are provided to illustrate the effectiveness of the proposed control scheme. • The fault-tolerant close formation flight control of multiple UAVs is considered. • The nonlinear 6-DOF fixed-wing UAV model is used in the control design. • A composite learning algorithm is proposed to enhance the estimation capability. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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