Title :
Attenuation of disturbances for an algebraic system
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, Ont., Canada
Abstract :
In this paper, a robust adaptive scheme is presented for attenuating disturbances in a multi-input multioutput algebraic linear system with time delay and parametric uncertainties. By using a performance index analysis, a time-varying gain matrix is obtained that minimizes the performance index. It is shown that by augmenting the system with an asymptotically stable, strictly positive-real subsystem, the adaptive scheme results in asymptotic attenuation of bounded disturbances. Simulation results axe given for a multiinput, multi-output system in the presence of considerable parametric uncertainties and time delay which further confirm the analytical developments
Keywords :
delays; linear systems; performance index; robust control; stability; time-varying systems; algebraic system; analytical developments; asymptotic attenuation; attenuation of disturbances; bounded disturbances; multi-input multi-output algebraic linear system; parametric uncertainties; performance index analysis; robust adaptive scheme; simulation; strictly positive-real subsystem; time delay; time-varying gain matrix; Adaptive filters; Attenuation; Communication system control; Delay effects; Free electron lasers; Magnets; Observers; Performance analysis; Robustness; Uncertainty;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.945927
