| 一类非线性不确定系统的滑模观测器设计及其在故障检测中的应用 |
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| 引用本文： | 丁旭东,严怀成,侍洪波.一类非线性不确定系统的滑模观测器设计及其在故障检测中的应用[J].华东理工大学学报(自然科学版),2012,38(2):200-204. |
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| 作者姓名： | 丁旭东 严怀成 侍洪波 |
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| 作者单位： | 华东理工大学化工过程先进控制和优化技术教育部重点实验室,信息科学与工程学院,上海200237 |
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| 基金项目： | 国家自然科学基金，上海市浦江人才计划项目，中央高校基本科研业务费项目 |
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| 摘 要： | 研究了一类非线性部分满足Lipschitz条件的非线性不确定系统的鲁棒滑模观测器的设计问题。提出了一种将Thau观测器与Walcott-Zak观测器结合的非线性鲁棒滑模状态观测器设计方案,并利用Lyapunov定理证明了状态观测误差最后一致收敛于一个紧集。将所设计的滑模观测器应用于故障检测,仿真实验结果验证了该方法的有效性。
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| 关 键 词： | 非线性系统 不确定性 滑模观测器 鲁棒性 故障检测 |
Sliding Mode Observer Design for a Class of Nonlinear Uncertain Systems and Its Application for Fault Detection |
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| DING Xu-dong,YAN Huai-cheng,SHI Hong-bo.Sliding Mode Observer Design for a Class of Nonlinear Uncertain Systems and Its Application for Fault Detection[J].Journal of East China University of Science and Technology,2012,38(2):200-204. |
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| Authors: | DING Xu-dong YAN Huai-cheng SHI Hong-bo |
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| Institution: | (Key Laboratory of Advanced Control and Optimization for Chemical Processes,Ministry of Education,School of Information Science and Engineering,East China University of Science and Technology,Shanghai 200237,China) |
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| Abstract: | The design problem of robust sliding mode observer for a class of nonlinear uncertain systems satisfying Lipschitz condition is considered,and a new nonlinear robust sliding mode observer design method is proposed by combining Thau observer with Walcott-Zak observer.By means of Lyapunov theory,it is shown that the estimation error will uniformly ultimately converge to a bounded set.Moreover,the designed observer is applied to the fault detection.Finally,the effectiveness of the proposed method is further demonstrated via numerical simulation. |
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| Keywords: | nonlinear systems uncertainties sliding mode observer robustness fault detection |
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