切换多胞飞行器的变增益H_∞跟踪控制  

Variable Gain H_∞ Tracking Control for Switched Polytopic Vehicle

作　　者：王青[1] 王通[1] 董朝阳[2] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100191 [2]北京航空航天大学航空科学与工程学院,北京100191

出　　处：《宇航学报》2015年第10期1133-1139,共7页Journal of Astronautics

基　　金：国家自然科学基金(61273083;61374012)

摘　　要：针对飞行器大包线控制问题,提出基于切换多胞系统的变增益H∞跟踪控制策略。采用切换多胞系统描述飞行器包线范围内的时变飞行动态,进而基于广义系统方法获得切换多胞形式的变增益H∞跟踪控制器设计方法,结合公共Lyapunov函数方法与平均驻留时间方法给出闭环飞行控制系统在时变工作条件下的一致稳定性与H∞性能分析方法,最后将所提方法应用于高机动性飞行器大包线控制系统的分析与设计。仿真结果表明变增益H∞跟踪控制系统在工作包线内体现出良好的动态响应品质与稳态跟踪性能,同时对大气扰动具有较强的抑制作用。To cope with the issue of flight control in wide envelope,the variable gain H∞tracking control strategy is presented based on switched polytopic system approach. The time-varying dynamics across the flight envelope is described by a switched polytopic system. The design method of the switched-polytope-formed variable gain H∞tracking controller is proposed by using the generalized system approach. Employing the common Lyapunov function method and the average dwell time technique,the analysis tool of the uniform stability and the H∞performance is given for the closed-loop flight control system under time-varying flight conditions. The analysis and design approaches are applied to the highly maneuverable vehicle. Simulation results show that the variable gain H∞tracking control system qualifies satisfactory transient characteristics and tracking performance,and achieves a low attenuation level to wind turbulence throughout the operating envelope.

关 键 词：飞行器控制 变增益控制 H∞控制 切换多胞系统 广义系统 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]