Release Time:2019-03-12  Hits:

Indexed by: Journal Article

Date of Publication: 2018-09-01

Journal: INFORMATION SCIENCES

Included Journals: SCIE

Volume: 462

Page Number: 417-429

ISSN: 0020-0255

Key Words: Actuator saturation; Anti-windup; LADRC; Local asymptotic stability; Maximum estimate of the basin of attraction

Abstract: In this paper, an LMI-based anti-windup approach is proposed for a class of uncertain multiple input multiple output (MIMO) systems subject to actuator saturation with linear active disturbance rejection controller (LADRC). A modified linear extended state observer (MLESO) is presented to deal with the actuator saturation and the observation error is proved to be bounded. Meanwhile, local asymptotic stability of the closed-loop system is achieved and in the meantime estimate of the basin of attraction is obtained through formulating anti-windup gain matrix IC,. Furthermore, estimate of basin of attraction of the closed-loop system is maximized through solving a convex optimization problem. Finally, numerical examples are provided to illustrate the effectiveness of this method. (C) 2018 Elsevier Inc. All rights reserved.