Network Control System Fault Diagnosis Method Based on Sliding Mode Observer

Lei Han; Qi Hua Xu; Rui Ming Liu

doi:10.4028/www.scientific.net/AMR.846-847.799

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

Network Control System Fault Diagnosis Method Based on Sliding Mode Observer

Abstract:

This paper constructs a sliding mode observer of fixed long delay network control system with an augmented modeling method, and then proves the feasibility of system residuals converging to zero by Lyapunov stability theorem. The network control system fault diagnosis is discussed in depth by detecting changes in the residuals. In addition, this paper takes Gradient faults and mutation faults of actuator as examples to conduct fault diagnosis simulation, and the simulation results show that this method can detect the system faults effectively.

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Periodical:

Advanced Materials Research (Volumes 846-847)

Pages:

799-803

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.846-847.799

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Online since:

November 2013

Authors:

Lei Han*, Qi Hua Xu, Rui Ming Liu

Keywords:

Augmented Model, Fault Diagnosis, Fixed Long Time Delay, Lyapunov Stability, Networked Control System (NCS), Sliding Mode Observe

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