| 一类时滞不确定离散系统的鲁棒自适应滑模控制 |
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| 引用本文： | 李菲,高存臣.一类时滞不确定离散系统的鲁棒自适应滑模控制[J].南京气象学院学报,2011(6):560-565. |
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| 作者姓名： | 李菲 高存臣 |
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| 作者单位： | 中国海洋大学数学科学学院, 青岛 266100;中国海洋大学数学科学学院, 青岛 266100 |
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| 基金项目： | 国家自然科学基金(60974025) |
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| 摘 要： | 主要研究一类具有不确定项和外部扰动的离散时滞系统的鲁棒自适应控制,假设扰动和不确定项是有界的,而扰动和关于状态的不确定项的边界是不必知道的.设计了自适应控制器以保证系统能在有限时间内到达切换面,并且收敛到包含原点的一定的有界区域内.仿真的结果说明了该方法的有效性.
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| 关 键 词： | 离散系统 自适应控制 时滞 滑模控制 |
| 收稿时间： | 2011/1/14 0:00:00 |
Robust adaptive sliding mode control for a kind of uncertain discrete-time systems with time delay |
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| LI Fei and GAO Cunchen.Robust adaptive sliding mode control for a kind of uncertain discrete-time systems with time delay[J].Journal of Nanjing Institute of Meteorology,2011(6):560-565. |
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| Authors: | LI Fei and GAO Cunchen |
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| Institution: | School of Mathematical Sciences, Ocean University of China, Qingdao 266100;School of Mathematical Sciences, Ocean University of China, Qingdao 266100 |
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| Abstract: | This paper focuses on robust adaptive sliding mode control for a kind of discrete-time state-delay systems with uncertainties and external disturbances.The uncertainties and disturbances are assumed to be norm-bounded but the bound of disturbances and uncertainties of state variables is not necessarily known.Especially,the uncertainties of state variables are mismatched.In this paper,a corresponding adaptive controller is designed by estimating the unknown upper bound of the disturbances and uncertainties of state variables.And it is designed to guarantee that the trajectory of the system can be driven on to the sliding surface in finite time and finally converges into a residual set of the origin.Also,simulation results are presented to illustrate the effectiveness of the control strategy. |
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| Keywords: | discrete-time systems adaptive control time delay sliding mode control |
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