Robust control of uncertain nonlinear systems with state delays based on an uncertainty and disturbance estimator
Robust control of uncertain nonlinear systems with state delays based on an uncertainty and disturbance estimator
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DOI：
10.1002/rnc.1578
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发表时间：
2011-01
影响因子：
3.9
通讯作者：
A. Kuperman;Qing-Chang Zhong
中科院分区：
文献类型：
--
作者：
A. Kuperman;Qing-Chang Zhong
本文针对具有扰动和状态时滞的不确定非线性连续时间系统，提出了一种线性和一种非线性鲁棒控制策略。该方法是基于2004年推出的不确定性和干扰估计（UDE）。在线性控制器的情况下，包含非线性函数和时滞的项被视为系统的附加干扰。在一个非线性控制器的情况下，已知和未知的延迟的情况下被认为是。在时滞未知的情况下，包含时滞的项被视为系统的附加扰动。该算法具有良好的跟踪和抗干扰性能。模拟给出的策略的有效性，首先通过一个简单的例子，第二通过应用程序的连续搅拌釜反应器系统。版权所有© 2010约翰威利父子有限公司.
In this article, one linear and one nonlinear robust control strategies are proposed for uncertain nonlinear continuous‐time systems with disturbances and state delays. The approaches are based on the uncertainty and disturbance estimator (UDE) introduced in 2004. In the case of a linear controller, the terms containing the nonlinear functions and time delays are treated as additional disturbances to the system. In the case of a nonlinear controller, both known and unknown delay scenarios are considered. In the case of an unknown time delay, the terms containing the delay are treated as additional disturbances to the system. The algorithms provide excellent tracking and disturbance rejection performance. Simulations are given to show the effectiveness of the strategies, first via a simple example and second via an application to a continuous stirred tank reactor system. Copyright © 2010 John Wiley & Sons, Ltd.