Wang, Yongqiang; Ye, Hao; Ding, Steven X.; Wang, Guizeng; Wan, Yiming:
Observer Based Residual Generation and Evaluation of Networked Control Systems Subject to Random Packet Dropout
In: 7th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes - Barcelona, 2009, pp. 822 - 827
2009book article/chapter in collection
TechnologyFaculty of Engineering » Engineering and Information Technology » Automatic Control and Complex Systems
Title:
Observer Based Residual Generation and Evaluation of Networked Control Systems Subject to Random Packet Dropout
Author:
Wang, Yongqiang;Ye, Hao;Ding, Steven X.UDE
GND
134302427
LSF ID
2347
ORCID
0000-0002-5149-5918ORCID iD
Other
connected with university
;
Wang, Guizeng;Wan, Yiming

Abstract:

In this paper fault detection is addressed for networked control systems subject to random packet dropout in both sensor-to-controller link and controller-to-actuator link. First a new model of NCS is proposed, which directly eliminates influence of packet dropout in the sensor-to-controller link. Then adaptive threshold is given to ensure robustness to packet dropout in the controller-to-actuator link. False alarm rate analysis is also given, which is not addressed in most of the literature on fault detection of networked control systems. The fault detection scheme can ensure both robustness to packet dropout as well as disturbance and sensitivity to fault, which is superior to the existing approaches. Moreover, the residual generation can be achieved by using linear matrix inequality based convex optimization technique. Comparison with existing approaches illustrates advantages of our method.