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论文类型：期刊论文

发表时间：2018-09-01

发表刊物：INFORMATION SCIENCES

收录刊物：SCIE

卷号：462

页面范围：417-429

ISSN号：0020-0255

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

摘要：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.