Robust passive control for a class of uncertain neutral systems based on sliding mode observer.
Robust passive control for a class of uncertain neutral systems based on sliding mode observer.
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DOI：
10.1016/j.isatra.2016.10.013
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发表时间：
2017
期刊：
影响因子：
7.3
通讯作者：
Zhen Liu;Lin Zhao;Y. Kao;C. Gao
中科院分区：
文献类型：
--
作者：
Zhen Liu;Lin Zhao;Y. Kao;C. Gao
针对一类具有不可测状态的不确定中立型系统，研究了基于无源性的滑模控制问题。首先，设计了一个特定的非脆弱状态观测器来产生系统状态的估计，并在此基础上建立了一种新的积分型滑模函数用于控制过程。其次，利用线性矩阵不等式(LMI)的形式，得到了所得滑模动力学(SMDS)鲁棒渐近稳定和无源的新的充分条件。第三，采用一种新的自适应滑模控制律，保证了预先设计的滑动面的有限时间可达性。最后，通过几个实例验证了该方案的有效性和优越性。
The passivity-based sliding mode control (SMC) problem for a class of uncertain neutral systems with unmeasured states is investigated. Firstly, a particular non-fragile state observer is designed to generate the estimations of the system states, based upon which a novel integral-type sliding surface function is established for the control process. Secondly, a new sufficient condition for robust asymptotic stability and passivity of the resultant sliding mode dynamics (SMDs) is obtained in terms of linear matrix inequalities (LMIs). Thirdly, the finite-time reachability of the predesigned sliding surface is ensured by resorting to a novel adaptive SMC law. Finally, the validity and superiority of the scheme are justified via several examples.