Stabilization of neutral time-delay systems with actuator saturation via auxiliary time-delay feedback
Stabilization of neutral time-delay systems with actuator saturation via auxiliary time-delay feedback
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DOI：
10.1016/j.automatica.2014.11.015
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发表时间：
2015-02
期刊：
影响因子：
--
通讯作者：
Yonggang Chen;S. Fei;Yong-ming Li
中科院分区：
文献类型：
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作者：
Yonggang Chen;S. Fei;Yong-ming Li
研究了具有执行器饱和的中立型时滞系统的镇定问题。与已有技术不同，本文首次引入了辅助时滞反馈。在此基础上，将饱和非线性表示为状态反馈和辅助时滞反馈的凸组合。利用自由加权矩阵技巧和Jensen积分不等式，通过精确估计L-K泛函的下界，以线性矩阵不等式的形式给出了改进的时滞相关局部镇定条件。数值算例说明了本文所提条件的保守性降低。
This paper investigates the stabilization problem for neutral time-delay systems with actuator saturation. Different from the existing techniques, the auxiliary time-delay feedback is introduced for the first time in this paper. Based on such a technique, the saturation nonlinearity is represented as the convex combination of state feedback and auxiliary time-delay feedback. By employing free-weighting matrix technique and Jensen integral inequalities, and performing the accurate estimation of the lower bounds of L–K functionals, the improved delay-dependent local stabilization conditions are proposed in terms of linear matrix inequalities (LMIs). Numerical examples illustrate the reduced conservatism of the proposed conditions in this paper.