ManuscriptIJC.pdf (267.53 kB)
Download file

Nonlinear disturbance observer-based control for multi-input multi-output nonlinear systems subject to mismatching condition

Download (267.53 kB)
journal contribution
posted on 14.12.2012, 11:21 authored by Jun Yang, Shihua Li, Wen-Hua ChenWen-Hua Chen
For a multi-input multi-output (MIMO) nonlinear system, the existing disturbance observer-based control (DOBC) only provides solutions to those whose disturbance relative degree (DRD) is higher than or equal to its input relative degree. By designing a novel disturbance compensation gain matrix, a generalised nonlinear DOBC method is proposed in this article to solve the disturbance attenuation problem of the MIMO nonlinear system with arbitrary DRD. It is shown that the disturbances are able to be removed from the output channels by the proposed method with appropriately chosen control parameters. The property of nominal performance recovery, which is the major merit of the DOBCs, is retained with the proposed method. The feasibility and effectiveness of the proposed method are demonstrated by simulation studies of both the numerical and application examples.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Citation

YANG, J., LI, S. and CHEN, W-H., 2012. Nonlinear disturbance observer-based control for multi-input multi-output nonlinear systems subject to mismatching condition. International Journal of Control, 85 (8), pp. 1071 - 1082

Publisher

© Taylor and Francis

Version

AM (Accepted Manuscript)

Publication date

2012

Notes

This article was published in the serial International Journal of Control [© Taylor and Francis] and the definitive version is available at: http://www.tandfonline.com/doi/abs/10.1080/00207179.2012.675520

ISSN

0020-7179

eISSN

1366-5820

Language

en