Distributed Fault Estimation and Fixed-Time Fault-Tolerant Formation Control for Multi-UAVs subject to Sensor Faults

被引:6
作者
Han, Bing [1 ]
Jiang, Ju [1 ]
Yu, Chaojun [1 ]
Cao, Teng [1 ]
机构
[1] Nanjing Univ Aeronaut & Astronaut, Coll Automat Engn, 29 Jiangjun Ave, Nanjing 211106, Peoples R China
基金
中国国家自然科学基金;
关键词
Fault-tolerant formation control; Multiple unmanned aerial vehicles; Fixed-time control; Sensor fault; CONTROL SCHEME; SYSTEMS; DESIGN; VEHICLES; TRACKING;
D O I
10.1007/s10846-022-01698-x
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
This paper develops a fault estimation-based fixed-time fault-tolerant formation control strategy for multiple unmanned aerial vehicles under the case of sensor faults and directed connective communication topology. Four common types of sensor faults on position and velocity measurement channels are considered simultaneously, which are only assumed to be bounded. For monitoring the occurrence of sensor faults, a fault detection observer is developed using H-infinity approach. Then, the amplitude of the sensor fault is reconstructed by the modified adaptive radial basis function neural network-based cooperative fault estimation observer, which is triggered by the fault alarm from fault detection observer. Furthermore, a novel sliding mode-based distributed fault-tolerant formation controller is designed to compensate the effects of faults using the estimated fault information, where the unknown bounded fault compensation error and lumped disturbances are explicitly taken into consideration. Additionally, the fixed-time stability of the whole formation system is analyzed based on Lyapunov approach. Finally, a comparative simulation is performed to illustrate the performance and superiority of the proposed scheme.
引用
收藏
页数:19
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