Fault Diagnosis for Discrete Systems with Delayed Outputs

摘要：

Observer-based fault diagnosis approach is researched for discrete systems with delayed outputs in this note. To solve the difficulty of fault diagnosis caused by delayed outputs of discrete systems, a discrete delay-free transformation approach is presented for delayed outputs, and the problem of fault diagnosis for discrete systems with delayed outputs is transformed into the problem of state observation of a discrete delay-free augmented system by constructing an augmented system and doing the delay-free transformations. A novel observer-based fault diagnosis approach is presented, which is different from the traditional observer-based fault diagnosis approaches by using residual to embody faults. Compared with the traditional observer-based fault diagnosis approaches, the proposed fault diagnoser has the faster response speed and higher accuracy. Finally, the feasibility and effectiveness of the proposed approaches are validated by a numerical example.

关键词： Fault Diagnosis Discrete Systems Time-Delay Systems Observer

作者: Juan Li You-Gang Zhao Li-Jun Mu

作者单位: College of Mechanical and Electrical Engineering, Qingdao Agricultural University, Qingdao, 266109 College of Science and Information, Qingdao Agricultural University, Qingdao, 266109 College of Mathematical Science and Physics, Qingdao University of Science and Technology, Qingdao,

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: 701-706

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）