软管式自主空中加油受油机控制系统研究  

Flight Control of Receiver Aircraft in Probe and Drogue Aerial Refueling

作　　者：刘曌[1] 袁锁中[1] 周春华[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016

出　　处：《科学技术与工程》2011年第8期1755-1761,共7页Science Technology and Engineering

基　　金：国家自然科学基金(60674100);南京航空航天大学基本科研业务费专项科研项目基金(V1083-031)资助

摘　　要：针对软管式空中加油过程中加油锥套受气流扰动影响,受油机受油插头难以与之实现精确对接的问题,提出基于参考观测器的全状态反馈控制方法设计了受油机的飞行控制系统。首先根据DGPS或者视觉传感器测量的加油机与受油机的相对位置,设计了参考轨迹生成模块,实时生成受油机期望的平滑飞行轨迹。然后通过一个输出跟踪观测器在线估算出前馈控制信号和参考状态量。基于估算的状态量设计一个全状态反馈控制器。最终实现对参考状态的精确跟踪,保证受油插头与加油锥套的精确对接和位置保持。仿真结果表明,在四种强度阵风干扰下,控制器能实现精确的双机空中加油设备跟踪对接,具有良好的动态性能与鲁棒性能。In probe and drogue auto-air refueling,the refueling drogue is easily effected by the wind disturbance.Therefore,it＇s difficult to achieve accurate tracking for the probe.Based on the characteristics,a Reference Observer-based Tracking Controller of receiver aircraft＇s flight control system is designed for the docking of probe and drogue auto-air refueling.First,based on the relative position between the tanker and receiver aircraft measured by DGPS（Difference Global Positioning System） or visual sensor sensors,a reference trajectory generation module is designed for calculating the receiver＇s expected smooth flight trajectory at real time.And then,an output tracking observer is designed to estimate the forward-feed control signals and the reference states to be tracked.Accordingly,a full state feedback controller is designed to provide accurate tracking with the assurance of accurate docking and the position keeping.Under the consideration of four different wind turbulence,the results of aerial refueling simulation show that integration of observer and controller is good at achieving accurate tracking,docking and the position keeping during the aerial refueling,and the control system has good dynamics and robust characteristics.

关 键 词：软管式加油 参考观测器 全状态反馈 飞行控制 

分 类 号：V249.4[航空宇航科学与技术—飞行器设计]