乘波构型高超声速滑翔飞行器大包线反步控制方法

A method about backstepping control for waverider slide hypersonic vehicle with large envelope

高超声速滑翔飞行器在高速突防、快速打击等方面具有重要应用前景,是航空航天领域的重要发展方向。针对高超声速飞行器快速、大空域的飞行环境特性复杂、姿态控制系统适应性要求高的特点,建立高超声速飞行器姿态运动模型,采用解耦设计方法,利用块控反步控制理论设计姿态控制器。经证明和仿真结果可知,该方法严格保证闭环系统的Lyapunov稳定性,控制律设计具有灵活性,响应速度快,能克服气动参数变化带来的影响,鲁棒性较好。

Waverider slide hypersonic vehicle will be very useful for transport and even a powerful weapon in the future. The flight environment is very complex as the hypersonic vehicle flies at high speed and covers wide range, thus the control system of the hypersonic vehicle must have good adaptability. As decoupling pseudolinear system does not have fine dynamic performance, this research established the attitude model of the hypersonic vehicle, using the diseoupling method and Block Backstepping theory to design the control system. The stability of close- loop system was proved and the simulation with large flight envelope and large-scale parameters perturbation was accomplished. The results showed that the method can ensure the stability of close-loop system＇s Lyapunov functions. With functional agility and rapid response, the control system can solve the problem brought about by large flight envelope and large-scale parameters perturbation, and can enhance the system＇s robustness.