| 离散时间不确定系统的变结构控制 |
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| 引用本文： | 郭秋丽,李文林.离散时间不确定系统的变结构控制[J].科技通报,2004,20(5):420-423,427. |
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| 作者姓名： | 郭秋丽 李文林 |
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| 作者单位： | 1. 浙江万里学院数学研究所,浙江宁波,315100
2. 河南师范大学数学系,河南新乡,453002 |
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| 摘 要： | 离散时间不确定系统滑模控制，其常规方法是利用不确定性的界设计控制律，往往造成结论的保守和抖振的加剧．为了克服这一缺点，采用预估 步长修正的方法设计离散不确定系统变结构控制律．仿真表明该方法对离散不确定性有良好的控制效果和鲁棒性，且保守性小。
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| 关 键 词： | 变结构控制 离散时间系统 不确定性 鲁棒性 |
| 文章编号： | 1001-7119(2004)05-0420-04 |
Variable Structure Control of Uncertain Discrete-Time System |
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| GUO Qiu-li,LI Wen-lin.Variable Structure Control of Uncertain Discrete-Time System[J].Bulletin of Science and Technology,2004,20(5):420-423,427. |
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| Authors: | GUO Qiu-li LI Wen-lin |
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| Institution: | GUO Qiu-li~1,LI Wen-lin~2 |
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| Abstract: | The conventional variable structure control for discrete uncertain system,requires the bound of the uncertainty known,and the control law based on the upper boundary of the uncertainty must be over conservative and enlarges chattering.In order to overcome the shortcoming above,a novel variable structure control law with perturbation estimation and online step correction is proposed . The results of simulation indicate that the proposed control law has good stability and smaller conservation than the methods of convention. |
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| Keywords: | variable structure control discrete-time system uncertainties robustness |
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