Robust fault-sensitive synchronization of a class of nonlinear systems

doi:10.1088/1674-1056/20/2/020509

Abstract Aiming at enhancing the quality as well as the reliability of synchronization, this paper is concerned with the fault detection issue within the synchronization process for a class of nonlinear systems in the existence of external disturbances. To handle such problems, the concept of robust fault-sensitive (RFS) synchronization is proposed, and a method of determining such a kind of synchronization is developed. Under the framework of RFS synchronization, the master and the slave systems are robustly synchronized, and at the same time, sensitive to possible faults based on a mixed H_-/H_∞ performance. The design of desired output feedback controller is realized by solving a linear matrix inequality, and the fault sensitivity H_- index can be optimized via a convex optimization algorithm. A master-slave configuration composed of identical Chua's circuits is adopted as a numerical example to demonstrate the effectiveness and applicability of the analytical results.

Keywords: nonlinear system synchronization disturbance rejection fault detection

Received: 17 January 2010
Revised: 02 November 2010
Accepted manuscript online:

PACS:

05.45.Xt

(Synchronization; coupled oscillators)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 60874011), the National Science and Technology Infrastructure Program (Grant No. 2008BAA13B07), and the China Postdoctoral Science Foundation (Grant No. 20100480242).

Cite this article:

Xu Shi-Yun(徐式蕴), Yang Ying(杨莹), Liu Xian(刘仙), Tang Yong(汤涌), and Sun Hua-Dong(孙华东) Robust fault-sensitive synchronization of a class of nonlinear systems 2011 Chin. Phys. B 20 020509

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Robust fault-sensitive synchronization of a class of nonlinear systems

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