Title :
Adaptive Asymptotic Rejection of Unmatched General Periodic Disturbances in Output-Feedback Nonlinear Systems
Author :
Chen, Pengnian ; Sun, Mingxuan ; Yan, Qiuzhen ; Fang, Xueyi
Author_Institution :
Coll. of Mechatron. Eng., China Jiliang Univ., Hangzhou, China
fDate :
4/1/2012 12:00:00 AM
Abstract :
This note deals with asymptotic rejection of periodic disturbances in a class of nonlinear systems via output feedback. The disturbance undertaken is unmatched but the period of the disturbance is known. A novel method for estimating periodic disturbances is proposed, which ensures convergence of the estimation error to zero. By applying such estimation, a controller is constructed such that all the signals in the closed loop are bounded and the output converges to zero. A numerical example is presented to show the utility of the results presented in the note.
Keywords :
closed loop systems; feedback; nonlinear control systems; adaptive asymptotic rejection; closed loop; controller; output-feedback nonlinear systems; unmatched general periodic disturbances; Adaptive systems; Closed loop systems; Educational institutions; Equations; Nonlinear systems; Observers; Adaptive control; nonlinear systems; periodic disturbances;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2011.2173409