Title :
Kalman filter based FDI of networked control system
Author :
Zheng, Ying ; Fang, Huajing ; Wang, Yanwei
Author_Institution :
Dept. of Control Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
Networked control system (NCS) deals with how to realize the close-loop control through network. Fault diagnosis for NCS is a new research region. In this paper, network channel connects the sensor and the controller. So NCS was regarded as a system with output time-variant delay and white noise. The iterative method was used to compensate the time-delay. Then different Kalman filters were constructed for NCS according to different system faults. So the respective residues were generated and a fault detection and isolation (FDI) approach was introduced. At last, an example was given to show the feasibility of the approach.
Keywords :
Kalman filters; closed loop systems; delays; distributed control; fault diagnosis; iterative methods; white noise; FDI approach; Kalman filter; close-loop control; fault detection and isolation approach; fault diagnosis; iterative method; network channel; networked control system; output time-variant delay; white noise; Actuators; Communication system control; Control systems; Delay; Fault detection; Fault diagnosis; Filters; Networked control systems; Sensor systems; White noise;
Conference_Titel :
Intelligent Control and Automation, 2004. WCICA 2004. Fifth World Congress on
Print_ISBN :
0-7803-8273-0
DOI :
10.1109/WCICA.2004.1340856
