Abstract
Based on the working mode of small CIGS solar UAV, the difference and basic characteristics between its energy power system and traditional UAV are analyzed. Some key problems to be solved in the miniaturization design of flight platform are studied from airfoil selection, aerodynamic layout design and basic parameter calculation. By increasing the power factor of the airfoil and reducing the wing load, the UAV can get a smaller sinking rate. In addition, through the coupling of energy system and power system and the use of new composite materials, the overall efficiency can also be improved and the endurance of solar UAV can be effectively extended. Combined with the intelligent flight control system, it can realize full autonomous over the horizon long-time flight. The main conclusions can provide reference for the miniaturization design and optimization of solar UAV.
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