Modified active disturbance rejection control for time-delay systems
Modified active disturbance rejection control for time-delay systems
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DOI：
10.1016/j.isatra.2013.09.013
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发表时间：
2014-07-01
期刊：
影响因子：
7.3
通讯作者：
Gao, Zhiqiang
中科院分区：
文献类型：
--
作者：
Zhao, Shen;Gao, Zhiqiang
工业过程是典型的非线性、时变和不确定性过程，自抗扰控制（ADRC）已被证明是一种有效的解决方案。在存在时间延迟的情况下，控制设计变得更具挑战性。本文提出了一种新的自抗扰控制器的修改，使良好的干扰抑制，同时保持系统的稳定。所提出的设计被证明是更有效的比标准的ADRC设计的时滞系统，也是一个统一的解决方案，稳定，临界稳定和不稳定的时滞系统。仿真和测试结果表明了该设计的有效性和实用性。基于线性矩阵不等式（LMI）的稳定性分析。(c)2013年伊萨。由爱思唯尔有限公司出版。保留所有权利。
Industrial processes are typically nonlinear, time-varying and uncertain, to which active disturbance rejection control (ADRC) has been shown to be an effective solution. The control design becomes even more challenging in the presence of time delay. In this paper, a novel modification of ADRC is proposed so that good disturbance rejection is achieved while maintaining system stability. The proposed design is shown to be more effective than the standard ADRC design for time-delay systems and is also a unified solution for stable, critical stable and unstable systems with time delay. Simulation and test results show the effectiveness and practicality of the proposed design. Linear matrix inequality (LMI) based stability analysis is provided as well. (c) 2013 ISA. Published by Elsevier Ltd. All rights reserved.