高超声速飞行器纵向内环系统自适应反演预设性能控制

Adaptive Backstepping Control with Prescribed Performance for Inner-loop Longitudinal System of Hypersonic Vehicles

针对高超声速飞行器控制器现有方法大都没有考虑系统的瞬态和稳态性能满足预先设定性能的问题,在模型中存在参数型不确定性的情况下,基于反演设计思想,结合自适应控制技术,提出了一种预设性能控制器的设计方法,利用Lyapunov稳定性定理证明了系统的稳定性,保证纵向内环闭环系统误差全状态满足预设的瞬态和稳态性能。给出的仿真算例验证了提出方法的有效性。

Considering that the present control methods for hypersonic vehicles don＇t take the transient and steady state with prescribed performance into consideration, on the basis of back stepping idea and adaptive control technique, a controller design method with prescribed performance was proposed under the model uncertainty existing in the design model.It was proved that the whole closed-loop system was stable in the sense of Lyapunov and all error states of the inner-loop longitudinal dynamics of hypersonic vehicles satisfied the prescribed transient and steady performance. The given simulation results demonstrated the effectiveness of the proposed control method.