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首页> 外文期刊>Systems Engineering and Electronics, Journal of >Polytopic LPV modeling and gain-scheduled switching control for a flexible air-breathing hypersonic vehicle
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Polytopic LPV modeling and gain-scheduled switching control for a flexible air-breathing hypersonic vehicle

机译：柔性呼吸高超音速飞行器的Polytopic LPV建模和增益预定切换控制

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摘要

A novel gain-scheduled switching control method for the longitudinal motion of a flexible air-breathing hypersonic vehicle (FAHV) is proposed. Firstly, velocity and altitude are selected as scheduling variables, a polytopic linear parameter varying (LPV) model is developed to represent the complex nonlinear longitudinal dynamics of the FAHV. Secondly, based on the obtained polytopic LPV model, the flight envelope is divided into four smaller subregions, and four gain-scheduled controllers are designed for these parameter subregions. Then, by the defined switching characteristic function, these gain-scheduled controllers are switched in order to guarantee the closed-loop FAHV system to be asymptotically stable and satisfy a given tracking error performance criterion. The condition of gain-scheduled switching controller synthesis is given in terms of linear matrix inequalities (LMIs) which can be easily solved by using standard software packages. Finally, simulation results show the effectiveness of the presented method.
机译：提出了一种新型的呼吸式高超音速飞行器（FAHV）纵向运动的增益预定切换控制方法。首先，选择速度和高度作为调度变量，建立了多线性参数变化模型（LPV）来表示FAHV的复杂非线性纵向动力学。其次，基于获得的多主题LPV模型，将飞行包络线划分为四个较小的子区域，并为这些参数子区域设计四个增益调度控制器。然后，通过定义的开关特性函数，对这些增益调度的控制器进行切换，以确保闭环FAHV系统渐近稳定并满足给定的跟踪误差性能标准。增益调度开关控制器综合的条件由线性矩阵不等式（LMI）给出，可以通过使用标准软件包轻松解决。最后，仿真结果表明了该方法的有效性。

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