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标题：Modeling of an airborne wind energy system with a flexible tether model for the optimization of landing trajectories * * Support by the EU via ERC-HIGHWIND (259 166), ITN-TEMPO (607 957), and ITN-AWESCO (642 682) and by DFG in context of the Research Unit FOR 2401.
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作者：Jonas Koenemann ; Paul Williams ; Soeren Sieberling 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2017
卷号：50
期号：1
页码：11944-11950
DOI：10.1016/j.ifacol.2017.08.1037
语种：English
出版社：Elsevier
摘要：AbstractAutonomous takeoff and landing is a big challenge in the field of airborne wind energy. We propose numerical methods in order to optimize flight trajectories of a tethered aircraft. These flight trajectories yield a baseline for analyzing takeoff or landing performance. In this paper, we optimize for a landing strategy that uses the winch to decelerate the aircraft after touchdown. A complete optimal control formulation with differential algebraic equations for the system dynamics is derived. For avoiding tether collision with the ground, we employ a quasi-static tether model that treats both the tether sag and elasticity. It is a novelty in airborne wind energy trajectory optimization to solve for the tether shape as part of the optimization problem.
关键词：KeywordsTether modelingTrajectory optimizationAirborne wind energy