Title :
A construction of multivariable MRACS with fixed compensator using coprime factorization approach
Author :
Masuda, S. ; Inoue, A. ; Sugimoto, K.
Author_Institution :
Dept. of Inf. Technol., Okayama Univ., Japan
Abstract :
A multivariable model reference adaptive control system (MRACS) with a fixed compensator is proposed. First, a new two-degree-of-freedom (2DOF) compensator with disturbance estimator is derived. Using this structure, a multivariable MRACS with fixed compensator is constructed. Since the proposed method is based on the 2 DOF structure, the fixed compensator is chosen independently of specifications for reference commands. The boundedness of all signals in the closed-loop system and the convergence of the output error are proved. A design method of the fixed compensator for MRACS with low sensitivity is also given. Finally, numerical examples are illustrated in order to show the effectiveness of the proposed method
Keywords :
closed loop systems; compensation; control system synthesis; convergence; model reference adaptive control systems; multivariable control systems; boundedness; closed-loop system; convergence; coprime factorization approach; disturbance estimator; fixed compensator; low sensitivity; model reference adaptive control system; multivariable MRACS; output error; reference commands; two-degree-of-freedom compensator; Adaptive control; Adaptive systems; Convergence; Design methodology; Feedback loop; Information technology; Programmable control; Robustness; Transfer functions; Uncertainty;
Conference_Titel :
Decision and Control, 1994., Proceedings of the 33rd IEEE Conference on
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
0-7803-1968-0
DOI :
10.1109/CDC.1994.411196
