全包线飞行控制系统设计方法研究

Study of full-envelope flight control system design

介绍了当前全包线飞行控制系统设计的几种主要方法 ,分析了这些方法存在的问题。研究了线性变参数系统 ( LPV)的自增益调度控制器设计 ,说明了其中两种重要的设计方法 LFT (线性分式变换 )法和 Lyapunov函数法。应用 Lyapunov函数法设计了大包线范围飞机的俯仰角速率自增益调度控制系统 ,进行了变参数仿真 ,仿真结果说明了方法的有效性。

This paper studies full envelope flight controller design. Firstly it surveys the recent methods of full envelope flight control and points out the deficiency of these methods. The main method studied in this paper is self scheduled control of linear parameter varying system and its two important method: linear fraction transformation method and Lyapunov function method. In the end, a large envelope pitch angle velocity rate control system is designed and the computer simulation is made. The result of the simulation shows that the method is effective.