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基于Riccati方程解的高增益未知输入观测器设计

朱芳来 张永军

朱芳来, 张永军. 基于Riccati方程解的高增益未知输入观测器设计[J]. 北京航空航天大学学报, 2015, 41(1): 8-13. doi: 10.13700/j.bh.1001-5965.2014.0041
引用本文: 朱芳来, 张永军. 基于Riccati方程解的高增益未知输入观测器设计[J]. 北京航空航天大学学报, 2015, 41(1): 8-13. doi: 10.13700/j.bh.1001-5965.2014.0041
ZHU Fanglai, ZHANG Yongjun. Design of high-gain unknown input observer based on Riccati equation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(1): 8-13. doi: 10.13700/j.bh.1001-5965.2014.0041(in Chinese)
Citation: ZHU Fanglai, ZHANG Yongjun. Design of high-gain unknown input observer based on Riccati equation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(1): 8-13. doi: 10.13700/j.bh.1001-5965.2014.0041(in Chinese)

基于Riccati方程解的高增益未知输入观测器设计

doi: 10.13700/j.bh.1001-5965.2014.0041
基金项目: 国家自然科学基金资助项目(61074009);高等学校博士学科点专项科研基金资助项目(20110072110015);广西制造系统与先进制造技术重点实验室项目(PF110289);上海重点学科项目(B004)
详细信息
    通讯作者:

    朱芳来(1965-),男,广西兴安人,教授,zhufanglai@tongji.edu.cn,主要研究方向为非线性系统鲁棒控制,基于模型的故障检测与故障重构等.

  • 中图分类号: TP273

Design of high-gain unknown input observer based on Riccati equation

  • 摘要: 针对具有未知输入和测量噪声的一类Lipschitz非线性系统,研究了状态估计、噪声估计及未知输入重构问题.通过将输出噪声看作扩展状态,把原系统转化为描述系统.针对描述系统,首先基于Riccati方程的解,提出了一种高增益观测器设计方法,实现对系统状态的估计和测量噪声的重构;之后,设计二阶高增益滑模观测器精确估计输出的微分,并利用状态和输出微分的估计,提出了一种未知输入的重构方法.在一Riccati方程有解的前提下,所提出的未知输入和测量噪声的重构,均适用于强时变信号.最后,对一个实际模型仿真,验证所提出方法的有效性.

     

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出版历程
  • 收稿日期:  2014-01-23
  • 网络出版日期:  2015-01-20

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