Title :
Capability of the extended state observer for minimum phase plants with unknown orders and uncertain relative degrees
Author :
Chunzhe, Zhao ; Xiaoxia, Yang ; Jiang, Xiong ; Xiaoran, Lin
Author_Institution :
Sch. of Comput. Sci. & Eng., Chongqing Three Gorges Univ., Chongqing, China
Abstract :
The observing capability of the active disturbance rejection control (ADRC) for the minimum phase plants with unknown orders and uncertain relative degrees is discussed in this paper. The frequency performance of the linear extended state observer (LESO) is analyzed. It is proved that ESO can estimate the required states at the designed speed in spite of a large range of uncertainties. Finally, the results are verified by simulations.
Keywords :
control system synthesis; observers; state estimation; ADRC; LESO; active disturbance rejection control; frequency performance; linear extended state observer; minimum phase plants; states estimation; uncertain relative degrees; unknown orders; Control systems; Educational institutions; Electronic mail; Observers; Stability analysis; Transfer functions; Uncertainty; ADRC; Extended State Observer; Frequency Performance; Uncertain Relative Degree; Unknown Order;
Conference_Titel :
Control Conference (CCC), 2012 31st Chinese
Conference_Location :
Hefei
Print_ISBN :
978-1-4673-2581-3
