| 一类非线性系统的变结构鲁棒观测器 |
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| 引用本文： | 刘粉林,陈 兵,王银河,张嗣瀛.一类非线性系统的变结构鲁棒观测器[J].控制理论与应用,2000,17(2):303-305. |
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| 作者姓名： | 刘粉林 陈 兵 王银河 张嗣瀛 |
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| 作者单位： | 东北大学自动控制系,沈阳,110006 |
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| 基金项目： | 国家自然科学基金!(697740 0 5)，教育部博士点基金!(970 1 4 50 8)，国家攀登计划资助 |
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| 摘 要： | 研究了系统中不确定因素不满足匹配条件且具有外部干扰的变结构鲁棒观测器的设计问题，构造的观测器适用于标称系统是线性定常系统或可化正则型的仿射非线性系统。采用Ｌｙａｐｕｎｏｖ函数为稳定观测器的判别条件，使观测器在外有部干扰时具有一致最终有界的构造误差。
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| 关 键 词： | 观测器 非线性系统 变结构鲁棒观测器 镇定问题 |
| 收稿时间： | 1997/12/8 0:00:00 |
| 修稿时间： | 1997-12-08 |
Variable Structure Robust Observers for a Class of Nonlinear Systems |
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| LIU Fen-lin,CHEN Bing,WANG Yin-he and ZHANG Si-ying.Variable Structure Robust Observers for a Class of Nonlinear Systems[J].Control Theory & Applications,2000,17(2):303-305. |
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| Authors: | LIU Fen-lin CHEN Bing WANG Yin-he and ZHANG Si-ying |
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| Affiliation: | Department of Automatic Control, Northeastern University, Shenyang,110006, P.R.China;Department of Automatic Control, Northeastern University, Shenyang,110006, P.R.China;Department of Automatic Control, Northeastern University, Shenyang,110006, P.R.China;Department of Automatic Control, Northeastern University, Shenyang,110006, P.R.China |
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| Abstract: | The design problem of variable structure robust observers for uncertain systems is explored, the uncertainties and extemal disturbances are all mismatched. The observers obtained in this paper are adapted to systems which posses linear or exactly linearizable nominal systems. Lyapunov function is chosen in order to verify the stability of observer,and it is proved that the observer error states are uniformly ultimately bounded. Observers obtained in this paper are constructed by using the bounds of uncertainties. In comparison with previous corresponding results, the observers are easy for practice. |
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| Keywords: | observer nonlinear system uniformly ultimately bounded variable structure |
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