Title :
Capabilities of extended state observer for estimating uncertainties
Author :
Yang, Xiaoxia ; Huang, Yi
Author_Institution :
Key Lab. of Syst. & Control, Acad. of Math. & Syst. Sci., Beijing, China
Abstract :
The capabilities of extended state observer (ESO) for estimating uncertainties is discussed in this paper. The scope of the disturbances that can be observed by LESO with bounded observing errors is given. The observing errors for several typical disturbances-constant disturbance, sine disturbance, ramp disturbance, and square wave disturbance are further analyzed. It is demonstrated that ESO can deal with a large class of disturbances. Finally, the results are tested by simulations.
Keywords :
control system analysis; control system synthesis; error analysis; observers; uncertain systems; bounded observing error analysis; constant disturbance; extended state observer; ramp disturbance; sine disturbance; square wave disturbance; uncertainty estimation; Automatic control; Control design; Equations; Observers; Process control; Sliding mode control; State estimation; Testing; Three-term control; Uncertainty;
Conference_Titel :
American Control Conference, 2009. ACC '09.
Conference_Location :
St. Louis, MO
Print_ISBN :
978-1-4244-4523-3
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2009.5160642
