Fault Diagnosis Method for Network Control Systems Applying SVM Disturbance Compensation

Abstract:

According to a network control system--NCS with short time-delay and packet loss, an state observer is designed firstly in this paper to obtain a state estimation error equation which is equivalent to an asynchronous dynamical system having event incidence constraint. Secondly, SVM is used to identify interferences of the NCS. Finally, making the identification result as compensation term adding to the state observer can make the residual only represent fault term under ideal condition and increase the robustness of NCS for interference, which can improve the fault diagnosis precision. The simulation results prove that the designed observer can diagnose faults effective and the disturbance compensation based on SVM has attained the expected effect.

• Periodical: Applied Mechanics and Materials (Volumes 427-429)
• Pages: 1799-1802
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.427-429.1799
• Online since: September 2013
• Authors: Jiao Meng*, Qi Hua Xu, Lei Han
• Keywords: Disturbance Compensation, Fault Diagnosis, Network Control System (NCS), State Observer, Support Vector Machine (SVM)

References

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