1. Composite anti-disturbance control for a class of uncertain nonlinear systems via a disturbance observer.
- Author
-
Zhang, Huifeng, Jing, Yuanwei, and Wei, Xinjiang
- Subjects
NONLINEAR systems ,TIME-varying systems ,ADAPTIVE control systems ,CLOSED loop systems ,STABILITY theory - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF