%0 Thesis %A Duda, Dominik Felix %T Control of dynamic maneuvers during launch of flying wings in airborne wind energy systems %I Rheinisch-Westfälische Technische Hochschule Aachen %V Dissertation %C Aachen %M RWTH-2025-04891 %P 1 Online-Ressource : Illustrationen %D 2025 %Z Veröffentlicht auf dem Publikationsserver der RWTH Aachen University %Z Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2025 %X Airborne wind energy is an evolving technology that utilizes airborne systems operating in wind fields to harvest energy. To achieve high performance, employing airborne systems with favorable aerodynamic characteristics is promising. In addition, to enable launching and landing at various sites and eliminate elaborate ground infrastructure such as runways or catapult aid systems, the airborne systems must be able to take off and land vertically. A flying wing, span-wise equipped with propulsion units, allows such vertical operation with its nose pointing upward, improving the system's operational flexibility. In addition, it provides favorable aerodynamic characteristics for energy-harvesting flight, allowing enhanced power production. However, due to the specific flight characteristics of flying wings, the launch maneuver from vertical takeoff to energy-harvesting flight is challenging, particularly in strong winds. Moreover, a tether connecting the flying wing to the ground must also be considered. Consequently, controlling the flying wing's motion throughout the operation, especially during such dynamic launch maneuvers, is a significant challenge. This thesis presents a control concept for dynamic flight maneuvers of a flying wing operating in an airborne wind energy system. It focuses on the launch, including the dynamic transition maneuver from vertical takeoff to energy-harvesting flight, providing the potential for enhanced system performance with a flying wing configuration. This transition involves a wide range of attitude changes and high nonlinearities that must be considered in the control concept. Moreover, the specific flight characteristics of flying wings and the constraints imposed by the tether must be considered. The flight controller presented here is cascaded, comprising guidance, translational, and rotational controllers. This thesis primarily focuses on designing the translational controller using an incremental nonlinear dynamic inversion approach. This controller governs the translational motion of the flying wing across its entire operational envelope, including dynamic maneuvers. The control concept is implemented for an exemplary flying wing airborne wind energy system and thoroughly analyzed, with results from linear and nonlinear simulations and flight tests. The developed control concept proves effective for launch maneuvers, addressing the challenges of controlling flying wings during such operations. %F PUB:(DE-HGF)11 %9 Dissertation / PhD Thesis %R 10.18154/RWTH-2025-04891 %U https://publications.rwth-aachen.de/record/1012147