Finite-time stabilization by state feedback control for a class of time-varying nonlinear systems

Finite-time stabilization by state feedback control for a class of time-varying nonlinear systems
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一类时变非线性系统的状态反馈控制有限时间镇定

DOI:
10.1016/j.automatica.2011.07.014
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发表时间:
2012-03
期刊:
影响因子:
6.4
通讯作者:
Sun Yonghui
Sun Yonghui
中科院分区:
计算机科学2区
文献类型:
--
作者:
Zhang Xianfu(张宪福);Feng Gang;Sun Yonghui

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研究了一类由下三角模型控制的非线性系统的有限时间镇定问题。基于有限时间李雅普诺夫稳定性定理和动态增益控制设计方法,提出了状态反馈有限时间镇定控制器,其增益通过两个动态方程在线调整。不同于现有的下三角非线性系统的有限时间控制设计,著名的反推方法,这里没有使用。据观察,我们的设计过程要简单得多,所得到的控制增益一般不高,所提供的反推方法。仿真实例验证了所提设计方法的有效性。
In this paper, finite-time stabilization is considered for a class of nonlinear systems dominated by a lower-triangular model with a time-varying gain. Based on the finite-time Lyapunov stability theorem and dynamic gain control design approach, state feedback finite-time stabilization controllers are proposed with gains being tuned online by two dynamic equations. Different from many existing finite-time control designs for lower-triangular nonlinear systems, the celebrated backstepping method is not utilized here. It is observed that our design procedure is much simpler, and the resulting control gains are in general not as high as those provided by the backstepping method. A simulation example is given to demonstrate the effectiveness of the proposed design procedure.
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