Variable structure model reference adaptive control based on two-degree-of-freedom compensators scheme

In this paper, a variable structure model reference adaptive control system (MRACS) based an two-degree-of-freedom compensators scheme (2 DOF) is proposed. First, a MRACS with fixed compensator is constructed using the 2 DOF proposed in Masuda et al. (1994). Second, the fixed compensator is replaced by a switching compensator. The switching algorithm is determined in order that the estimated parameter can converge more rapidly. Since the Proposed method is based on the 2 DOF structure, the switching compensator works only when the parameter uncertainties are large. The boundedness of all signals in the closed-loop system and the convergence of the output error are proved. Finally, simulation results are illustrated to show the effectiveness of the proposed method

Published with permission from the copyright holder. This is the institute's copy, as published in American Control Conference, 1995. Proceedings of the, 21-23 June 1995, Volume 5, Pages 3012-3016.
Publisher URL:http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=532066
Copyright © 1995 IEEE. All rights reserved.