Observer-based Robust Fault Diagnosis for a Class of Uncertain Nonlinear Systems

摘要：

Robust fault diagnosis is investigated for a class of uncertain nonlinear flight control systems based on the adaptive observer. A new general fault updating law is presented to relax the assumption conditions of the adaptive observer. In addition, a simplified fault updating law is further presented for the case of constant faults. The asymptotical stability of the adaptive observer and the uniform ultimate boundedness of the fault estimation error vector are proved by Lyapunov theorem. The effectiveness of the proposed scheme is demonstrated through the numerical simulation of a flight control system.

关键词： Fault Diagnosis Robust Nonlinear Adaptive Observer Flight Control

作者: Lingya Meng Bin Jiang Yufei Xu

作者单位: College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 21001 College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 21001

会议类型: 国际会议

会议名称: 2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)

会议地点: 广西桂林

会议语种:英文

页码: 885-889

在线出版日期: 2009-06-17（万方平台首次上网日期，不代表论文的发表时间）