A unified observer for high order disturbances in time series expansion

Author

Qing Liang ; Zhen Wang ; Jinwen Pan ; Yiheng Wei

Author_Institution

Dept. of Autom., Univ. of Sci. & Technol. of China, Hefei, China

fYear

2014

fDate

May 31 2014-June 2 2014

Firstpage

2505

Lastpage

2510

Abstract

A unified observer of high order disturbances in time series expansion for a class of nonlinear systems was proposed in this paper. The stability of a special observer from selecting the nonlinear weighted function was analyzed for constant disturbance. Then the constant disturbance observer algorithm was generalized to ramp disturbance and high order disturbances in time series expansion by incorporating the higher order integrals. Simulation examples were illustrated to show the effectiveness and advantages of the proposed algorithms.

Keywords

integral equations; nonlinear control systems; observers; stability; time series; constant disturbance observer algorithm; high order disturbance; higher order integrals; nonlinear system; nonlinear weighted function; ramp disturbance observer; stability; time series expansion; unified observer; Convergence; Friction; Observers; Simulation; Stability analysis; Technological innovation; Time series analysis; Constant Disturbance; Disturbance Observer; Nonlinear Weight Function; Ramp Disturbance; Time Series Expansion;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference (2014 CCDC), The 26th Chinese

Conference_Location

Changsha

Print_ISBN

978-1-4799-3707-3

Type

conf

DOI

10.1109/CCDC.2014.6852595

Filename

6852595