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Static disturbance-to-output decoupling for nonlinear systems with arbitrary disturbance relative degree

journal contribution
posted on 2012-12-07, 13:04 authored by Jun Yang, Wen-Hua Chen, Shihua Li, Xisong Chen
Static disturbance-to-output decoupling problem for nonlinear systems with arbitrary disturbance relative degree is addressed in this paper without resorting to a high-gain design. A systematic design method is developed for the design of the disturbance compensation gain in the control law. It is shown that the influence of the disturbance can be eliminated from the output channel in steady state with the proposed design method. More interesting, the exact disturbance decoupling methods turn out to be special cases of the proposed control law. The feasibility of extending the proposed method to unmeasurable disturbance case is also investigated by integrating a nonlinear disturbance observer. It is further discussed that the proposed method can be extended to multiple disturbance cases with almost no modification. Simulation example of a missile shows that the proposed method is effective in rejecting disturbance with arbitrary relative degree.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Citation

YANG, J. ... et al, 2013. Static disturbance-to-output decoupling for nonlinear systems with arbitrary disturbance relative degree. International Journal of Robust and Nonlinear Control, 23 (5), pp. 562 - 577.

Publisher

© John Wiley & Sons, Ltd.

Version

  • AM (Accepted Manuscript)

Publication date

2013

Notes

This article is closed access, it has been published in the serial International Journal of Robust and Nonlinear Control [© John Wiley and Sons]. The definitive version is available at: http://onlinelibrary.wiley.com/doi/10.1002/rnc.1850/full

ISSN

1049-8923

eISSN

1099-1239

Language

  • en