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首页> 外文期刊>Acta astronautica >Robust tracking control of hypersonic flight vehicles: A continuous model-free control approach
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Robust tracking control of hypersonic flight vehicles: A continuous model-free control approach

机译：超音速飞行车辆的鲁棒跟踪控制：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：为高超声速飞行车辆（HFV）建立精确运动模型是极其困难的。然而，大多数现有的控制技术侧重于基于模型的方法。本文调查了一种用于HFV的连续非仿射模型的新型无模型控制器。首先，非共进的车辆动力学被转变为由速度子系统和高度子系统组成的纯反馈配方。然后，利用模型跟踪控制法用于速度子系统。此外，开发的模型无关控制技术被扩展到是高阶动态系统的高度子系统。拟议的无模型控制器包含Hurwitz稳定术语和过滤术语。此外，还设计了补偿过滤器以进一步强度稳健性。特殊的新颖性是，寻址的控制器不需要准确的仿射模型，表现出精细的普遍性和强大的鲁棒性。最后，经过验证理论结论，通过模拟结果验证了设计的有效性。

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