基于L_1自适应的自动空中加油对接段飞行控制技术  

L_1 adaptive control for automated aerial refueling

作　　者：李大伟[1] 王宏伦[1] 盖文东[2] 

机构地区：[1]北京航空航天大学无人驾驶飞行器设计研究所,北京100191 [2]山东科技大学信息与电气工程学院,山东青岛266590

出　　处：《控制理论与应用》2014年第6期717-724,共8页Control Theory & Applications

基　　金：北京高等学校"青年英才计划"资助项目(29201499)

摘　　要：在自动空中加油(AAR,automated aerialre fueling)对接过程中,加油机后方拖出的加油软管锥套受到加油机和受油机的双重气动干扰,呈现不规则摆动运动,受油机要实现与加油锥套的精确对接,要求其飞行控制系统具有鲁棒性和快速的自适应能力,为此提出采用自适应控制器方案,该方案以线性二次调节器(linear quadraticregulator,LQR)比例积分型控制器作为稳定闭环,在此基础上加入自适应控制器,仿真结果表明,采用自适应控制器的受油机自动空中加油飞行控制系统可以实现规定时间内的精确加油对接,既满足瞬态性能要求,又满足稳态精度要求,同时,还解决了由自适应参数跳动带来的舵机操纵过于频繁的问题.该方法可有效提高对接过程中受油机飞行控制系统的抗干扰能力,能够满足自动空中加油对接段的飞行控制要求.During the automated aerial refueling （AAR）, when the receiver approaches to couple with a refueling drogue, the hose-drogue system undergoes a transient motion due to the receiver forebody aerodynamic effect, in addition to the tanker motion and downwash. Thus, the receiver requires an accurate flight control. For this purpose, we propose a novel adaptive controller on the basis of LQR proportional integral control for stabilizing the closed-loop, to realize the fast accurate refueling with desirable transient performance and the steady-state precision. Simulation results show that this method ensures the realization of an accurate AAR in a given finite time period by restraining the disturbance as well as reducing the model error, and meets the control requirements of AAR in both the transient and steady states.

关 键 词：自动空中加油 飞行控制 轨迹跟踪 自适应控制 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]