Actuator Fault Reconstruction in a Class of Uncertain Dynamic Systems with Mismatched Uncertainties

摘要：

This paper considers the sliding mode observer based actuator fault reconstruction schemes for a class of uncertain dynamic system with mismatched uncertainties. To deal with a broader class of mismatched uncertainties, we propose the novel sliding mode observer, which LMI existence conditions and some verification are given by combined with LMI methods and are primarily designed for actuator fault reconstruction. The proposed design need not predigest the canonical process of the dynamic systems which the sliding mode observer designs are simplified. Simultaneously, applying the equivalence output error concept and the proposed observer, the fault information is obtained so that actuator faults are reconstructed by the designed sliding mode observer. The numerical simulation results are presented to validate the approach.

关键词： sliding mode observer mismatched uncertainties actuator fault reconstruction LMI

作者: Zhongyu Shen Jin Zhao Xingsheng Gu

作者单位: School of Electrical & Automation Engineering , Nanjing Normal University,Nanjing,210042,China School of Information Science & Engineering, East China University of Science & Technology.Shanghai,

会议类型: 国际会议

会议名称: The 22nd China Control and Decision Conference(2010年中国控制与决策会议)

会议地点: 徐州

会议语种:英文

页码: 2209-2214

在线出版日期: 2010-05-26（万方平台首次上网日期，不代表论文的发表时间）