Semiglobal Stabilization via Output-Feedback for a Class of Nontriangular Nonlinear Systems with an Unknown Coefficient

Mengliang Liu, Yungang Liu and Fengzhong Li

Mathematical Problems in Engineering, 2015, vol. 2015, 1-8

Abstract:

This paper is devoted to the semiglobal stabilization via output-feedback for a class of uncertain nonlinear systems. Remark that the systems in question contain an unknown control coefficient which inherently depends on the system output and allow larger-than-two order growing unmeasurable states which is the obstruction of global stabilization via output-feedback. By introducing a recursive reduced-order observer and combining with saturated state estimate, a desired output-feedback controller is explicitly constructed for the systems. Under the appropriate choice of design parameters, the controller can make the closed-loop system semiglobally attractive and locally exponentially stable at the origin. A simulation example is provided to illustrate the effectiveness of the proposed approach.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:375765

DOI: 10.1155/2015/375765

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