Print Email Facebook Twitter Flight-Path Reconstruction and Flight Test of Four-Line Power Kites Title Flight-Path Reconstruction and Flight Test of Four-Line Power Kites Author Borobia-Moreno, R. (Carlos III University of Madrid) Sánchez-Arriaga, Gonzalo (Carlos III University of Madrid) Serino, A. (Politecnico di Torino) Schmehl, R. (TU Delft Wind Energy) Date 2018 Abstract A flight-path reconstruction algorithm for tethered aircraft, which is based on an extended Kalman filter, is presented. The algorithm is fed by the measurements of a set of onboard and ground-based instruments and provides the optimal estimation of the system state-space trajectory, which includes typical aircraft variables such as position and velocity, as well as an estimation of the aerodynamic force and torque. Therefore, it can be applied to closed-loop control in airborne wind energy systems and it is a first step toward aerodynamic parameter identification of tethered aircraft using flight-test data. The performance of the algorithm is investigated by feeding it with real flight data obtained from a low-cost and highly portable experimental setup with a four-line kite. Several flight tests, which include pullup and lateral-directional steering maneuvers with two kites of different areas, are conducted. The coherence of the estimations provided by the filter, such as the kite state-space trajectory and aerodynamic forces and torques, is analyzed. For some standard variables, such as kite Euler angles and position, the results are also compared with a second independent onboard estimator. To reference this document use: http://resolver.tudelft.nl/uuid:d658a984-c1a1-48bf-97ef-e8fa74703485 DOI https://doi.org/10.2514/1.G003581 Embargo date 2019-02-07 ISSN 0731-5090 Source Journal of Guidance, Control, and Dynamics: devoted to the technology of dynamics and control, 41 (12), 2604-2614 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2018 R. Borobia-Moreno, Gonzalo Sánchez-Arriaga, A. Serino, R. Schmehl Files PDF 1.g003581.pdf 2.27 MB Close viewer /islandora/object/uuid:d658a984-c1a1-48bf-97ef-e8fa74703485/datastream/OBJ/view