This article addresses the circular take-off and landing (CTOL) strategies for fixed-wing tethered aircraft, particularly for Airborne Wind Energy Systems (AWES). This work introduces a novel bridle actuator to control the aircraft’s roll angle and presents a dynamic model integrated into a hierarchical control architecture. Simulations demonstrate the viability of this approach, exploring loiter phases with varying roll angles, including coordinated turns. The study highlights the advantage of single-tether systems over multi-tether configurations for improved power efficiency in AWES. It identifies operational regions suitable for tethered flight or a coordinated turn based on tether length and height. The findings suggest that CTOL with a single tether is a viable solution for AWES automation.

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Automatic Circular Take-Off and Landing for Tethered Aircraft

  • Sérgio Vinha,
  • Gabriel M. Fernandes,
  • Manuel C. R. M. Fernandes,
  • Huu Thien Nguyen,
  • Fernando A. C. C. Fontes

摘要

This article addresses the circular take-off and landing (CTOL) strategies for fixed-wing tethered aircraft, particularly for Airborne Wind Energy Systems (AWES). This work introduces a novel bridle actuator to control the aircraft’s roll angle and presents a dynamic model integrated into a hierarchical control architecture. Simulations demonstrate the viability of this approach, exploring loiter phases with varying roll angles, including coordinated turns. The study highlights the advantage of single-tether systems over multi-tether configurations for improved power efficiency in AWES. It identifies operational regions suitable for tethered flight or a coordinated turn based on tether length and height. The findings suggest that CTOL with a single tether is a viable solution for AWES automation.