基于切换多胞模型的变体飞行器增益调参控制  

Gain schedule control of morphing vehicle based on switched polytopic system

作　　者：王通[1] 王青[1] 江未来 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：《北京航空航天大学学报》2014年第1期75-79,共5页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金资助项目(61273083)

摘　　要：针对一类可变后掠翼的变体飞行器,研究了全包线控制器的设计与综合方法.建立了基于切换多胞系统的变体飞行器模型,所提出的框架利用Lyapunov函数方法分析系统的稳定性,能够从理论上保证变体飞行器在全包线下的飞行稳定.给出了利用小凸包算法从三维飞行包线中选取设计点的方法,并对各设计点处的线性化模型设计了最优控制律.为继承传统增益调参方法的优势,提出了一种特殊的控制器插值方法,保证变体飞行器三维包线下的控制综合过程简便实用.仿真结果表明所提出的控制方法在飞行器快速变形和参数大范围快速变化的情况下仍具有良好的控制性能.Considering morphing vehicles with alterable sweep wings, control design and synthesis within full flight envelope was researched. The morphing vehicle model based on switched polytopic systems was es tablished. In this framework, the stability analysis was accomplished by Lyapunov functions. The presented approach can guarantee the flight stability of the morphing vehicle within full flight envelope. A technique u sing the small convex hull algorithm was provided to select operating points from the 3D flight envelope. Opti mal control laws were also designed for linear models of operating points. To inherit the advantage of traditional methods, a specific interpolation method was proposed to make the control synthesis within the 3D flight enve lope brief and practical. Simulation results show that the proposed approach can guarantee flight performance during the fast reshaping of the morphing vehicles within full flight envelope.

关 键 词：变体飞行器 增益调参 切换多胞系统 稳定性分析 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]