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@PHDTHESIS{Duda:1012147,
author = {Duda, Dominik Felix},
othercontributors = {Moormann, Dieter and Diehl, Moritz},
title = {{C}ontrol of dynamic maneuvers during launch of flying
wings in airborne wind energy systems},
school = {Rheinisch-Westfälische Technische Hochschule Aachen},
type = {Dissertation},
address = {Aachen},
publisher = {RWTH Aachen University},
reportid = {RWTH-2025-04891},
pages = {1 Online-Ressource : Illustrationen},
year = {2025},
note = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
University; Dissertation, Rheinisch-Westfälische Technische
Hochschule Aachen, 2025},
abstract = {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.},
cin = {415410},
ddc = {620},
cid = {$I:(DE-82)415410_20140620$},
typ = {PUB:(DE-HGF)11},
doi = {10.18154/RWTH-2025-04891},
url = {https://publications.rwth-aachen.de/record/1012147},
}
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