DocumentCode :
2740854
Title :
Robust approximation free prescribed performance control
Author :
Bechlioulis, Charalampos P. ; Rovithakis, George A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Aristotle Univ. of Thessaloniki, Thessaloniki, Greece
fYear :
2011
fDate :
20-23 June 2011
Firstpage :
521
Lastpage :
526
Abstract :
An approximation free controller is designed for strict feedback systems, in the presence of unknown nonlinearities, time-varying parameters and exogenous disturbances, capable of guaranteeing, for any a priori known initial state condition, bounded signals in the closed loop, as well as prescribed performance for the output tracking error. By prescribed performance we mean that the output tracking error converges to a predefined arbitrarily small residual set, with convergence rate no less than a certain prespecified value, exhibiting maximum overshoot less than some sufficiently small preassigned constant. The proposed control scheme is of low complexity and requires reduced levels of a priori system knowledge.
Keywords :
closed loop systems; control nonlinearities; control system synthesis; convergence; feedback; robust control; time-varying systems; tracking; bounded signals; closed loop system; convergence rate; exogenous disturbances; output tracking error; priori system knowledge; robust approximation free prescribed performance control; strict feedback systems; time varying parameter; unknown nonlinearities; Approximation methods; Backstepping; Complexity theory; Convergence; Robustness; Silicon; Steady-state;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control & Automation (MED), 2011 19th Mediterranean Conference on
Conference_Location :
Corfu
Print_ISBN :
978-1-4577-0124-5
Type :
conf
DOI :
10.1109/MED.2011.5983022
Filename :
5983022
Link To Document :
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