变体飞行器的非脆弱有限时间鲁棒控制器设计

针对存在有界干扰和控制器参数不确定性的变体飞行器,研究非脆弱有限时间鲁棒控制器的设计问题.首先建立变体飞行器纵向运动的切换系统模型.考虑到每个子系统具有不同的特性,基于多Lyapunov函数方法和模态依赖驻留时间方法分析了飞行器系统有限时间有界性能及满足$H_{\infty

Non-fragile finite-time robust controller design for morphing aircraft

Considering the bounded external disturbance and controller uncertainties of the morphing aircraft, the non-fragile finite-time robust controller design problem is investigated. Firstly, the longitudinal motion of morphing aircraft is modeled as a class of switched systems. Since the properties of each subsystem may be different, the multiple Lyapunov functional method and mode-dependent average dwell time method are combined to guarantee the finite-time boundedness and robust performance of the system, which is less conservative. In addition, the non-fragile robust controller based on state-feedback is proposed to overcome the influence caused by the inherent and unavoidable imprecision of the controllers. The sufficient existing conditions and solutions of the controllers are given in the form of linear matrix inequalities. Simulation results show the superiority and effectiveness of the proposed method.