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首页> 外文会议>Youth Academic Annual Conference of Chinese Association of Automation >Adaptive interval type-2 fuzzy output feedback control based on nonlinear high gain observer for flexible air-breathing hypersonic vehicles
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Adaptive interval type-2 fuzzy output feedback control based on nonlinear high gain observer for flexible air-breathing hypersonic vehicles

机译：基于非线性高增益观测器的自适应间隔-2型模糊输出反馈控制灵活的空气呼吸超声车辆

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摘要

In this paper, an adaptive interval type-2 fuzzy output feedback control (AIT2-FOFC) scheme is developed for flexible air-breathing hypersonic vehicles (FAHVs) in the presence of unknown flexible dynamics and parameter uncertainties. After calculating the derivatives of the velocity and altitude repeatedly, a state feedback dynamic inversion controller is formulated as the basic nominal controller. Then, an adaptive interval type-2 fuzzy logic system (AIT2-FLS) is constructed to approximate the unknown uncertainties in the FAHV longitudinal model. Furthermore, a nonlinear high gain observer is designed to estimate the high order derivatives of the velocity tracking error and altitude tracking error which are unavailable in practice. Based on the separation principle, the overall AIT2-FOFC scheme is finally obtained through combining the state feedback controller and the nonlinear high gain observer. Simulation at last demonstrates the effectiveness of our proposed control scheme.
机译：本文在存在未知的柔性动态和参数不确定性的情况下，为柔性空气呼吸超声车辆（FAHV）开发了一种自适应间隔类型-2模糊输出反馈控制（AIT2-FOFC）方案。重复计算速度和高度的衍生物后，将状态反馈动态反转控制器配制为基本标称控制器。然后，构造自适应间隔类型-2模糊逻辑系统（AIT2-FL）以近似FAHV纵向模型中的未知不确定性。此外，非线性高增益观测器旨在估计在实践中不可用的速度跟踪误差和高度跟踪误差的高阶导数。基于分离原理，通过组合状态反馈控制器和非线性高增益观测器来获得总体AIT2-FOFC方案。最后仿真展示了我们提出的控制方案的有效性。

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