Robust Fault-Tolerant Control Allocation for an Input-Redundant Aircraft
Publication: Journal of Aerospace Engineering
Volume 29, Issue 2
Abstract
A new scheme of robust fault-tolerant control allocation is designed for a discrete-time aerodynamic model in a research environment (ADMIRE) aircraft model in this paper. The control strategy has two steps. In the first step, a discrete-time robust virtual controller is designed to produce three axis moments. In the second step, the fault information will be used to reconfigure the robust fault-tolerant control allocation once an actuator fault is detected. A fault-detection scheme is assumed to exist for estimating the actuator fault. The robust virtual controller and the proposed robust fault-tolerant control allocation are applied to a discrete-time ADMIRE aircraft model. Simulation results demonstrate that the reference signals can be well tracked when the control surface is damaged. Thus the proposed robust fault-tolerant control allocation scheme is valid for input-redundant systems to recover from control surface failure, and simultaneously guarantee robustness to the uncertain control effectiveness matrix and disturbance.
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Acknowledgments
This work is supported by the National Basic Research Program of China (973 Program) 2012CB821202, National Natural Science Foundation of China under Grants 61174052, 61473004, and 61433001.
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Information & Authors
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Published In
Journal of Aerospace Engineering
Volume 29 • Issue 2 • March 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: May 7, 2012
Accepted: May 29, 2015
Published online: Aug 11, 2015
Discussion open until: Jan 11, 2016
Published in print: Mar 1, 2016
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