Discrete-time adaptive control for continuous-time system
by
Waldemar de Castro Leite Filho
Instituto de Aeronáutica e Espaço/CTA - Brazil
Coauthors: Domingos Sálvio Carrijo (Instituto Tecnológico de Aeronáutica)

This paper presents an adaptive control algorithm for a digital controller of a continuous system. The design of the adaptive control is based on the Lyapunov Stability Theory. For computational and robustness (external disturbances) reasons, the updating of the controller parameters is done only at instants multiple (m) of the sampling period while the information regarding the system is collected all sampling period. Such kind of strategy for adaptive control also can be called hybrid scheme. The boundedness of the controller parameters at disturbed system is related to (m). It is demonstrated that the convergence of the controller parameters can be assured by using the persistent excitation of the reference input. The complete proof of stability as well as the robustness analysis are presented.

Date received: February 14, 2002

Copyright © 2002 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cago-43.