东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2007, Vol. 28 ›› Issue (7): 933-936.DOI: -

• 论著 • 上一篇    下一篇

基于自适应观测器的非线性时滞系统故障检测与估计

尹作友;张化光;   

  1. 东北大学信息科学与工程学院;东北大学信息科学与工程学院 辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2007-07-15 发布日期:2013-06-24
  • 通讯作者: Yin, Z.-Y.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(6057207060534010)

Fault detection and diagnosis for nonlinear time delay systems based on adaptive observer

Yin, Zuo-You (1); Zhang, Hua-Guang (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-07-15 Published:2013-06-24
  • Contact: Yin, Z.-Y.
  • About author:-
  • Supported by:
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摘要： 针对具有模型不确定性、时滞现象的非线性动态系统的执行器故障,在某些假定的条件下,采用自适应观测器建立有效的残差信号,实现对系统故障的检测和估计,且利用Lyapunov理论对自适应观测器的设计进行了分析,获得了相应的自适应调节规则.仿真例子验证了提出方法的有效性.

关键词: 故障检测, 故障估计, 自适应观测器, 自适应律, 非线性系统

Abstract: For the actuator fault of nonlinear dynamic systems with model uncertainty and time delay, a class of adaptive observers are employed under some preconditions to construct several effective residual signals that are required to perform the fault detection and estimate. Based on Lyapunov theory, the design of adaptive observer is analyzed and the adaptive tuning rules are obtained. A simple simulation example was carried out to verify the effectiveness of the proposed method.

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