Active Hybrid Fault Tolerant Flight Control of an UAV under Control Surface Damage

Date

2020-01-01

Author

Ergocmen, Burak
Yavrucuk, İlkay

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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)

Collections

Department of Aerospace Engineering, Conference / Seminar

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Citation Formats

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.