引用本文:项基, 苏宏业, 褚健.一类不确定系统的滑模观测器设计[J].控制理论与应用,2006,23(6):996~1000.[点击复制]
XIANG Ji, SU Hong-ye ,CHU Jian.Sliding-mode observer design for a class of uncertain system[J].Control Theory and Technology,2006,23(6):996~1000.[点击复制]
一类不确定系统的滑模观测器设计
Sliding-mode observer design for a class of uncertain system
摘要点击 1279  全文点击 1571  投稿时间:2004-11-02  修订日期:2005-12-30
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DOI编号  10.7641/j.issn.1000-8152.2006.6.029
  2006,23(6):996-1000
中文关键词  滑模观测器  鲁棒  不确定系统  线性矩阵不等式(LMI)
英文关键词  sliding mode observer  robust  uncertain system  linear matrix inequality(LMI)
基金项目  国家杰出青年科学基金资助项目(60025308); 浙江省新世纪151人才工程重点资助项目(R1054301).
作者单位
项基, 苏宏业, 褚健 浙江大学电气工程学院系统科学与工程系, 浙江杭州310027
浙江大学先进控制研究所工业控制技术国家重点实验室, 浙江杭州310027 
中文摘要
      针对一类系统矩阵不确定的线性系统, 提出了一个新的鲁棒滑模观测器设计方法. 通过将系统矩阵的不确定分为匹配的和非匹配的两部分, 利用滑模控制对匹配不确定的绝对鲁棒性. 使得观测器具有更小的保守性. 基于规范型和结构Lyapunov矩阵, 将观测器的综合问题转化为一个简单易求解的LMI问题, 并进一步给出了优化求解过程, 避免过大的控制输入. 最后, 仿真实例验证了所提方法的有效性.
英文摘要
      A novel robust sliding mode observer design method is proposed for a class of uncertain system with model uncertainties. A less conservative design is achieved by dividing the model uncertainties into the matched part and the mismatched part. Based on a canonical form, a directly solvable linear matrix inequality (LMI) is proposed to release the constrained matrix equation causing the difficulty on synthesizing sliding-mode observer in previous results. Furthermore, an optimal design procedure is presented for low control efforts. Finally, the effectiveness of the proposed method is demonstrated by a simulation example.