Time-varying sliding mode controller for over-actuated systems with constrained and uncertain actuators in flightcontrol applications

Date
2022-10-29
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Source Title
International Journal of Robust and Nonlinear Control
Print ISSN
1049-8923
Electronic ISSN
1099-1239
Publisher
John Wiley and Sons, Ltd
Volume
33
Issue
3
Pages
1720 - 1737
Language
English
Type
Article
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Abstract

One solution to the problem of distributing the control action among redundant actuators with uncertain dynamics is employing an adaptive control allocator. This paper proposes a sliding mode controller which exploits a time-varying sliding surface to complement adaptive control allocation in the presence of actuator saturation. The proposed approach does not require error augmentation for tracking desired references, which diminishes the computational burden. Aerodata Model in Research Environment, which is an over-actuated aircraft model, is adopted to demonstrate the efficacy of the proposed controller in simulation studies.

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Keywords
Sliding mode controller, Control allocation, Constrained systems, Over-actuated systems
Citation
Published Version (Please cite this version)