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Robust tracking control of hypersonic flight vehicles: A continuous model-free control approach

机译：高超声速飞行器的鲁棒跟踪控制：一种连续的无模型控制方法

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摘要

It is extremely difficult to establish precise motion model for hypersonic flight vehicles (HFVs). However, the majority of the existing control techniques focus on model-based methodologies. This paper investigates a novel model-free controller for a continuous non-affine model of HFV. Firstly, the nonaffine vehicle dynamics is transformed into a pure feedback formulation consisting of velocity subsystem and altitude subsystem. Then, a model-free tracking control law is exploited for velocity subsystem. Furthermore, the developed model-independent control technique is expanded into the altitude subsystem that is a high-order dynamic system. The proposed model-free controller contains a Hurwitz stable term and a filtering term. In addition, compensated filters are devised to further strength robustness. The special novelty is that the addressed controller doesn't require accurate affine model, exhibiting fine universal property and strong robustness. Finally, theoretical conclusions are validated and the effectiveness of the design is verified by simulation results.
机译：建立高超音速飞行器（HFV）的精确运动模型非常困难。但是，大多数现有的控制技术都集中在基于模型的方法论上。本文研究了HFV连续非仿射模型的新型无模型控制器。首先，将非仿射车辆动力学转化为由速度子系统和高度子系统组成的纯反馈公式。然后，对速度子系统采用了无模型跟踪控制律。此外，已开发的与模型无关的控制技术被扩展到作为高阶动态系统的海拔子系统中。提出的无模型控制器包含Hurwitz稳定项和滤波项。另外，补偿滤波器被设计成进一步增强强度。特殊的新颖之处在于，所寻址的控制器不需要精确的仿射模型，具有良好的通用性和强大的鲁棒性。最后，对理论结论进行了验证，并通过仿真结果验证了设计的有效性。

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