空天飞行器直接力/气动力复合容错控制  

Composite fault tolerant control for aerospace vehicles with swing engines and aerodynamic fins

作　　者：董旺 齐瑞云[1,2] 姜斌[1,2] DONG Wang;QI Ruiyun;JIANG Bin(College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China;Key Laboratory of Navigation,Control and Heath-Management Technologies of Advanced Aerocraft,Ministry of Industry and Information Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China)

机构地区：[1]南京航空航天大学自动化学院,南京211100 [2]南京航空航天大学先进飞行器导航、控制与健康管理工业和信息化部重点实验室,南京211100

出　　处：《航空学报》2020年第11期78-91,共14页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(61873127,61533009);航空科学基金(2017ZA52013);江苏省“六大人才高峰”高层次人才资助项目(HKHT-010)。

摘　　要：考虑发生发动机推力损失故障的空天飞行器,针对直接力、气动力复合容错控制问题,设计一种基于自适应滑模的容错控制策略。首先,对于发生推力损失故障的摆动发动机,考虑X型安装的实际特点,对线性化后的俯仰通道控制模型进行故障等效,并采用自适应的方法对故障及干扰信息进行估计,综合利用舵面与发动机摆动角进行容错控制器设计。其次,考虑纵向容错控制对飞行器横侧向稳定性的影响,基于自适应反步的方法,利用方向舵与组合工作的左、右升降舵抵消干扰力矩的影响,保证横侧向的稳定。最后,基于李雅普诺夫稳定性理论,对所采用方法进行了分析,并通过仿真结果验证了所设计的复合容错控制方案的有效性。Regarding the composite fault-tolerant control problem of direct force and aerodynamic force,a fault-tolerant control strategy based on the adaptive sliding mode is designed for space vehicles with engine thrust loss.First of all,for swing engines with thrust loss,considering the practical characteristics of X-type installation,the fault equivalent of the linearized pitch channel control model is carried out,the fault and disturbance information are estimated by the adaptive method,and the fault-tolerant controller is designed by comprehensively using the control surfaces and the swing of engines.Secondly,considering the influence of the longitudinal fault-tolerant control on the lateral stability of the aircraft,based on the adaptive backstepping method,the redundant control surfaces are used to eliminate the influence of the interference torque and ensure the lateral stability.Finally,based on the Lyapunov stability theory,the method is analyzed,and the simulation results verify the effectiveness of the designed composite fault-tolerant control scheme.

关 键 词：空天飞行器 容错控制 摆动发动机 复合控制 自适应估计 

分 类 号：V448[航空宇航科学与技术—飞行器设计]