Title :
On the fault diagnosis of linear time-varying systems
Author :
Ji, Zhicheng ; Zhu, Rongjia ; Ding, Feng
Author_Institution :
Control Sci. & Eng. Res. Center, Southern Yangtze Univ., Wuxi, China
fDate :
29 July-1 Aug. 2005
Abstract :
An online fault detection and estimation method is proposed for linear time-varying systems by using the fault residual, which is obtained from the measured state and output of the system. The filter designed is not only used to monitor the system behaviour, but also can track the fault and predict changing trend of the fault. The stability of the filter is analyzed. Finally, a simulation example is given to show the validity and the applicability of the proposed approach.
Keywords :
estimation theory; fault diagnosis; linear systems; stability; time-varying systems; estimation method; fault diagnosis; filter stability; linear time-varying system; online fault detection; parity space approach; Control systems; Fault detection; Fault diagnosis; Filtering; Filters; Parameter estimation; Stability analysis; State estimation; Time varying systems; Vectors;
Conference_Titel :
Mechatronics and Automation, 2005 IEEE International Conference
Print_ISBN :
0-7803-9044-X
DOI :
10.1109/ICMA.2005.1626654
