Long Endurance Solar-powered Unmanned Aerial Vehicle (LESP UAV) have wings with high aspect ratios and lightweight structure. Its aerodynamic and mass characteristic are different from conventional aircraft. In this paper, the lateral aerodynamic cofficients and derivatives are compared in detail with those of Class I and Class III aircraft. Based on the rigid body dynamics theory, the effect of flexible wing deformation on the stability are analyzed. Furthermore, the Root Locus method is used to analyze the variation of eigenvalue against wing deformation. The rolling moment balance equation is combined with the kinematic equation to reveal the roll attitude limiting envelope constrained by aileron efficiency. In view of the aerodynamic characteristics of the Solar-powered UAVs, wing deformation, and the roll attitude limitation problem, this paper proposes an adaptive backstepping control method with strong robustness to achieve safe and stable control of the roll attitude, roll rate and yaw rate.
Lateral Attitude Control of Long Endurance Solar-Powered UAV
Lect. Notes Electrical Eng.
International Conference on Guidance, Navigation and Control ; 2022 ; Harbin, China August 05, 2022 - August 07, 2022
2023-01-31
12 pages
Article/Chapter (Book)
Electronic Resource
English
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