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Nonlinear flight control design using sliding mode disturbance observer-based constraint backstepping

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a sliding mode disturbance observer-based constraint backstepping control approach (CBS/SMDO) to control a cargo aircraft during heavy cargo airdrop operation. The CBS/SMDO controller is capable of dealing with parametric uncertainties, external disturbances, and unmodeled dynamics in the presence of state/control constraints. The super-twisting second order sliding mode disturbance observer (SOSMDO) is utilized to compensate for the overall uncertainties, avoiding high control gains. The SOSMDO is much simpler than the neural networks-based estimator and could provide asymptotic convergence of the estimation error to zero in finite time. The closed-loop stability is guaranteed in the sense of Lyapunov. The proposed CBS/SMDO controller is applied to the airdrop flight control design on a nonlinear six-degrees-of-freedom transport aircraft model in a low attitude tandem extraction airdrop scenario. Simulation results demonstrate the feasibility of the CBS/SMDO method.

Original languageEnglish
Title of host publicationWCICA 2012 - Proceedings of the 10th World Congress on Intelligent Control and Automation
Pages1818-1825
Number of pages8
DOIs
StatePublished - 2012
Event10th World Congress on Intelligent Control and Automation, WCICA 2012 - Beijing, China
Duration: 6 Jul 20128 Jul 2012

Publication series

NameProceedings of the World Congress on Intelligent Control and Automation (WCICA)

Conference

Conference10th World Congress on Intelligent Control and Automation, WCICA 2012
Country/TerritoryChina
CityBeijing
Period6/07/128/07/12

Keywords

  • constraint backstepping
  • flight control
  • heavy cargo airdrop
  • sliding mode disturbance observer

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