Adaptive Hovering Control Strategy for Composite Aircraft under Wind Field Disturbance

The object of research in this paper is a new type of composite flying machine, realization of energy-efficient flight of aircraft in wind-disturbed environments. Firstly, the model is established in SolidWorks, and the dynamic parameters of the UAV and the aerodynamic airfoil are obtained in simulation software Ansys and Xflr5, which is convenient for subsequent modeling. Secondly, the dynamics model of the vehicle under wind disturbances is established, and a wind speed-based observer without requiring the characteristic parameters of the vehicle is proposed. Finally, in order to give full play to the advantages of the aerodynamic wing, a control strategy that can maximize the use of the wind while resisting the wind is proposed to achieve the purpose of energy saving. The simulation results show that the composite vehicle is able to hover and operate in the wind field with less throttle than the ordinary quadrotor direct wind resistance, which verifies that the designed observer, structure, and control strategy are effective and can achieve the purpose of estimating, compensating, and utilizing the wind perturbation.