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Active Hybrid Fault Tolerant Flight Control of an UAV under Control Surface Damage
Date
2020-01-01
Author
Ergocmen, Burak
Yavrucuk, İlkay
Metadata
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Control surface or actuator faults or failures in any flight lead to system-induced loss of control in-flight (LOC-I) and the result can be fatal. In this paper, to prevent these accidents, an active fault-tolerant flight control (FTFC) is proposed. The system consists of the nonlinear control technique, state-dependent Riccati equation (SDRE) and a linear controller technique. In this paper, control surface damage is studied. To prevent LOC-I, a Reconfiguration Mechanism (RM) sends signals in real-time to the SDRE controller to slow down or accelerate the control surface movement, reconfigures controller with respect to damage or changes to Linear Quadratic Regulator/tracking (LQR/LQT) control due to uncontrollability and unobservability problem. Comparative figures are given to illustrate the effectiveness of the hybrid (SDRE/LQR-LQT+PID) controller architecture.
URI
https://hdl.handle.net/11511/89315
DOI
https://doi.org/10.23919/acc45564.2020.9147352
Conference Name
American Control Conference (ACC)
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Department of Aerospace Engineering, Conference / Seminar
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B. Ergocmen and İ. Yavrucuk, “Active Hybrid Fault Tolerant Flight Control of an UAV under Control Surface Damage,” presented at the American Control Conference (ACC), Colorado, Amerika Birleşik Devletleri, 2020, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/89315.