Print Email Facebook Twitter Discrete-time Design and Stability Analysis for Nonlinear Incremental Fault-tolerant Flight Control Title Discrete-time Design and Stability Analysis for Nonlinear Incremental Fault-tolerant Flight Control Author Chang, J. (TU Delft Aerospace Structures & Computational Mechanics) De Breuker, R. (TU Delft Aerospace Structures & Computational Mechanics) Wang, Xuerui (TU Delft Aerospace Structures & Computational Mechanics) Date 2022 Abstract Incremental control, including incremental nonlinear dynamic inversion (INDI) and incremental backstepping (IBS), is a sensor-based control framework that enhances the control robustness by exploiting sensor measurements. Although its effectiveness has been demonstrated on various aerospace systems, the explicit and quantifiable expression for the ultimate bound of the tracking error, as a function of the sampling frequency and perturbation bound, has not been presented. This issue is addressed by the discrete-time domain stability analysis of the incremental control in this paper, which allows convenient yet realistic performance assessment and parameter tuning before performing real-world flight tests. Another challenge faced by the incremental control is that its stability criterion can be violated in severe aircraft fault scenarios, such as the control reversal. Therefore, this paper proposes a discrete-time control-direction-based incremental sliding mode control, denoted as D-INDI-SMC, which has broader applicability than the state-of-the-art incremental control methods. The robustness of D-INDI-SMC against control reversal, sensing errors, model uncertainties, actuator faults, and structural damage has been theoretically proved and numerically demonstrated. To reference this document use: http://resolver.tudelft.nl/uuid:51f65a9a-a07a-49fc-95bc-adf4b60871a4 DOI https://doi.org/10.2514/6.2022-2034 Embargo date 2022-07-04 ISBN 978-1-62410-631-6 Source AIAA SCITECH 2022 Forum Event AIAA SCITECH 2022 Forum, 2022-01-03 → 2022-01-07, virtual event Series AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022 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 conference paper Rights © 2022 J. Chang, R. De Breuker, Xuerui Wang Files PDF 6.2022_2034.pdf 2.44 MB Close viewer /islandora/object/uuid:51f65a9a-a07a-49fc-95bc-adf4b60871a4/datastream/OBJ/view