Title :
Criteria for chaos in adaptive control
Author :
Mossayebi, Faramarz ; Hartley, Tom T.
Author_Institution :
Dept. of Electr. Eng., Akron Univ., OH, USA
Abstract :
The conditions under which an adaptive control system can exhibit chaotic behavior are investigated and classified. Indirect adaptive control strategies are used for control of linear discrete-time plants, exclusively. It is shown that the strange behavior in adaptive control could arise due to unmodeled dynamics (or disturbances), a bad combination of parameter estimation and/or control law, and lack of persistency of excitation. A first-order system, subjected to various identification algorithms and control laws, is analyzed for illustrative purposes
Keywords :
adaptive control; chaos; discrete time systems; parameter estimation; adaptive control; chaos; control law; excitation; first-order system; identification algorithms; indirect adaptive control strategies; linear discrete-time plants; parameter estimation; persistency; strange behavior; unmodeled dynamics; Adaptive control; Algorithm design and analysis; Chaos; Control system analysis; Control systems; Difference equations; Extraterrestrial measurements; Nonlinear control systems; Parameter estimation; Process control;
Conference_Titel :
Circuits and Systems, 1989., Proceedings of the 32nd Midwest Symposium on
Conference_Location :
Champaign, IL
DOI :
10.1109/MWSCAS.1989.101809
