A modified observer based fault-tolerant control for aircraft with multi-actuator closed-loop system faults
A modified observer based fault-tolerant control for aircraft with multi-actuator closed-loop system faults
- Author(s): J. Wang 1 ; X. Zhang 1 ; J. Huang 1 ; X. Wang 2 ; G. Xiong 1 ; T. Wang 1
- DOI: 10.1049/icp.2021.0339
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- Author(s): J. Wang 1 ; X. Zhang 1 ; J. Huang 1 ; X. Wang 2 ; G. Xiong 1 ; T. Wang 1
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View affiliations
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Affiliations:
1:
Beijing Institute of Automatic Control Equipment , Beijing 100074, China ;
2: School of Automation Science and Electrical Engineering , Beihang University , Beijing 100191, China
Source:
CSAA/IET International Conference on Aircraft Utility Systems (AUS 2020),
2021
p.
933 – 938
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Affiliations:
1:
Beijing Institute of Automatic Control Equipment , Beijing 100074, China ;
- Conference: CSAA/IET International Conference on Aircraft Utility Systems (AUS 2020)
- DOI: 10.1049/icp.2021.0339
- ISBN: 978-1-83953-419-5
- Location: Online Conference
- Conference date: 18-21 September 2020
- Format: PDF
In this paper, a modified observer-based reconfigurable fault-tolerant control (FTC) strategy for the aircraft model with multi-actuator closed-loop system faults was presented. The aircraft hybrid states, including the obtained observer states and the remaining normal states, are used to reconfigure the optimal FTC gain under specific fault condition by linear quadratic regulator (LQR) technique. The switching mechanism is designed to realize smooth switching between different control gains. The convergence of the modified observer, and the proposed FTC controller are verified by using numerical simulation finally.
Inspec keywords: actuators; linear quadratic control; fault tolerance; closed loop systems; observers; control system synthesis; fault diagnosis
Subjects: Optimisation techniques; Optimal control; Multivariable control systems; Control system analysis and synthesis methods; Stability in control theory