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Adaptive fault-tolerant control for carrier-based UAV with actuator failures
Aerospace Science and Technology ( IF 5.6 ) Pub Date : 2020-09-21 , DOI: 10.1016/j.ast.2020.106227
Y.X. Xue , Z.Y. Zhen , L.Q. Yang , L.D. Wen

An adaptive fault-tolerant control (AFTC)1 method is developed for an automatic carrier landing system (ACLS)2 with actuator failures. First, an actuator fault model is added to the linear unmanned aerial vehicle (UAV)3 model. Then, an AFTC algorithm based on the output feedback designs for output tracking is raised to solve the theoretical problem extracted through the practical automatic carrier landing process. The σ-modification based robust adaptive update law is used for both parameterized and unparameterized fault. Then the stability of the system is verified by Lyapunov function method. Finally, the ACLS simulation is conducted, which includes the guidance law designed by PID method, the flight controller designed by the proposed AFTC method and a deck motion prediction and compensation based on auto-regression (AR)4 model. The comparison result shows that the improved robust AFTC can effectively deal with both parameterized and unparameterized fault, as well as external disturbances.



中文翻译:

带有执行器故障的舰载无人机的自适应容错控制

针对具有执行器故障的自动舰载着陆系统(ACLS)2,开发了一种自适应容错控制(AFTC)1方法。首先,将执行器故障模型添加到线性无人机(UAV)3模型。然后,提出了一种基于输出反馈设计进行输出跟踪的AFTC算法,以解决通过实际的自动舰载着陆过程提取的理论问题。该σ基于参数修正的鲁棒自适应更新定律可用于参数化和非参数化故障。然后通过Lyapunov函数方法验证了系统的稳定性。最后,进行了ACLS仿真,包括PID方法设计的制导律,AFTC方法设计的飞行控制器以及基于自回归(AR)4模型的甲板运动预测和补偿。比较结果表明,改进的鲁棒AFTC可以有效地处理参数化和非参数化故障,以及外部干扰。

更新日期:2020-10-13
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