Studied on Anti-interference Control Based on the Disturbance Observer

Author

He, Naibao ; Gao, Qian

Author_Institution

Huaihai Inst. of Techology, Lianyungang, China

fYear

2012

fDate

6-8 July 2012

Firstpage

2503

Lastpage

2505

Abstract

The adaptive law is designed to approximate the disturbance, and two controllers are designed for the slow-loop system under uncertainties and the fast-loop system in interference environment, respectively. In addition, a fast adaptive disturbance observer is employed by adding nonlinear exponential item into adaptive laws of parameters and approximating errors to make the tracking errors are converged to zero in limited time. Moreover, the control characters are systematically analyzed. Finally, the superiorities in rapidity and convergence are demonstrated by simulation analysis of the control of NSV at hypersonic speed..

Keywords

adaptive control; control system synthesis; convergence; nonlinear control systems; observers; NSV control; anti-interference control; control characters; convergence; error approximation; error tracking; fast adaptive disturbance observer; fast-loop system; hypersonic speed; nonlinear exponential item; simulation analysis; slow-loop system; Approximation methods; Automation; Control systems; Fuzzy systems; Intelligent control; Nonlinear systems; Observers; adaptive control; disturbance observer; nonlinear systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation (WCICA), 2012 10th World Congress on

Conference_Location

Beijing

Print_ISBN

978-1-4673-1397-1

Type

conf

DOI

10.1109/WCICA.2012.6358294

Filename

6358294