基于直接自适应控制的重构飞控系统研究  

Direct adaptive control-based reconfiguration flight control system

作　　者：刘小雄[1] 章卫国[1] 武燕[2] 黄宜军[1] 

机构地区：[1]西北工业大学自动化学院,西安710072 [2]西安电子科技大学理学院,西安710071

出　　处：《控制与决策》2007年第4期440-444,共5页Control and Decision

摘　　要：通常,飞控系统重构设计需知系统的故障信息,而使用直接自适应控制技术可在不知道系统故障信息的情况下,对飞控系统操纵面损伤进行重构,并且可使故障飞机很好地跟踪参考模型的输出.采用优化算法设计反馈补偿器以保证故障系统的严格正实性,并利用Lyapunov函数证明重构系统的渐近稳定性.将该方法用于某型飞机侧向控制系统的设计,仿真结果表明,在操纵面严重受损的情况下,飞机仍能保持良好的性能.In general, the failure information is needed in the design of reconfiguration flight control system. However, no failure information is required for reconfiguration actuator failures by using the direct adaptive control scheme. Moreover, a fault aircraft perfectly tracks the output trajectory of the reference model. A feedback compensator is designed by utilizing the optimization method in order to ensure the strictly positive real of the failure plants. The asymptotical stability of the adaptive reconfiguration systems is proved by applying Lyapunov function. The proposed scheme is applied to the design of a lateral motion of an aircraft. The results show that an aircraft has good dynamic performance in the condition of control surface failure.

关 键 词：重构 飞行控制系统 直接自适应控制 

分 类 号：V249[航空宇航科学与技术—飞行器设计]