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- Title
Composite anti-disturbance control for a class of uncertain nonlinear systems via a disturbance observer.
- Authors
Zhang, Huifeng; Jing, Yuanwei; Wei, Xinjiang
- Abstract
A new anti-disturbance control scheme is proposed for a class of nonlinear systems subjected to multi-source disturbances. The uncertain multi-source disturbances are classified into two parts; one is the harmonic and constant disturbance with partial known information, which can be formulated by an exogenous system, and the other consists of unknown time-varying disturbances. The nonlinear disturbance observer (NDO) is constructed to estimate the first kind of disturbance. By integrating the NDO with an adaptive backstepping technique, a novel composite anti-disturbance control scheme is proposed for the nonlinear systems. Then the stability analysis of the closed-loop system is presented. The simulation of a numerical example is given to demonstrate the effectiveness of the proposed results.
- Subjects
NONLINEAR systems; TIME-varying systems; ADAPTIVE control systems; CLOSED loop systems; STABILITY theory
- Publication
Transactions of the Institute of Measurement & Control, 2016, Vol 38, Issue 6, p648
- ISSN
0142-3312
- Publication type
Article
- DOI
10.1177/0142331215616181