In view of the attitude tracking control problem of tailless aircraft with limited communication bandwidth,an event-triggered-based adaptive fault-tolerant attitude control method is proposed,in the presence of model uncertainties,external disturbances,and actuator faults.Firstly,a control-oriented attitude control model is established based on the six-degree-of-freedom dynamics and kinematics model of the tailless aircraft.By adopting the event-triggered mechanism,the communication frequency between the controller and the actuator channel is successfully reduced,which relieves the communication burden of the bus and avoids the occurrence of the Zeno phenomenon.Then,the effects of actuator failure and sampling errors caused by the event trigger are successfully compensated by adaptive bounded estimation.Finally,the Lyapunov stability analysis is conducted to demonstrate that the proposed control method ensures the ultimate boundedness of all system signals.Numerical simulation results show that the proposed control method effectively reduces the update frequency of the controller while achieving attitude tracking of the tailless aircraft with respect to control commands.
关键词
无尾翼飞机/姿态跟踪/事件触发/自适应控制/容错控制
Key words
tailless aircraft/attitude tracking/event triggered/adaptive control/fault-tolerant control
维普
万方数据