Abstract
An output-feedback control strategy for the regulation of a planar vertical take-off and landing aircraft is presented here. The strategy consists of two controllers that work simultaneously. The first controller stabilizes the vertical variable, and is based on a simple feedback-linearization procedure, in combination with a nonlinear controller (which behaves as a terminal slide mode). The other controller stabilizes the horizontal and angular variables to the desired rest position, and was designed using an energy-control method. The velocities were exactly estimated with a second-order sliding-mode observer. Because this observer computes the velocities in finite time, the control strategy can be designed independently. The effectiveness of the closed-loop system was tested through numerical simulations and compared with other control strategies.
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This research was supported by the Secretaría de Investigación y Posgrado of the Instituto Politecnico Nacional (SIP-IPN) under Research Grants 20171586 and 20171948.
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This research was suported by Secretarí a de Investigación y Posgrado del Instituto Politécnico Nacional, under research grants 20160268 and 20161637.
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Aguilar-Ibañez, C., Suarez-Castanon, M.S., Mendoza-Mendoza, J. et al. Output-Feedback Stabilization of the PVTOL Aircraft System Based on an Exact Differentiator. J Intell Robot Syst 90, 443–454 (2018). https://doi.org/10.1007/s10846-017-0660-0
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DOI: https://doi.org/10.1007/s10846-017-0660-0