Fault Diagnosis Method for a Network Control System with Long-Time Delay and Data Packet Loss Based on H∞ Filtering

Jiao Meng; Qi Hua Xu; Xiao Xiao

doi:10.4028/www.scientific.net/AMR.846-847.795

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 846-847Fault Diagnosis Method for a Network Control...

Fault Diagnosis Method for a Network Control System with Long-Time Delay and Data Packet Loss Based on H∞ Filtering

Abstract:

Improving network control system---NCS reliability and safety has important practical significance because NCS is a hot research subject in these years. Fault diagnosis methods are researched in this paper according to NCS with long-time delay and data packet loss. Firstly, given a NCS with long-time delay, a state observer is structured. Secondly, make the state estimation error equation equivalent to an asynchronous dynamical system having event incidence constraint according to whether the system having data packets loss. The problem of fault diagnosis is converted to filtering problem through structuring filtering residual system based on the observer, then giving a corresponding filter designing algorithm. The designed fault diagnosis filter system not only make sure the stability of the closed loop system but also make the residual systems norm less than given reduction level. Finally, the simulation results prove that the algorithm can diagnose faults effectively.

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Periodical:

Advanced Materials Research (Volumes 846-847)

Pages:

795-798

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.846-847.795

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Online since:

November 2013

Authors:

Jiao Meng*, Qi Hua Xu, Xiao Xiao

Keywords:

Data Loss, Fault Diagnosis, H∞ Filtering, Long-Time Delay, Network Control System (NCS)

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