Observer-Based Robust Fault Detection Filter Design and Optimization for Networked Control Systems

Weilai Jiang, Chaoyang Dong, Erzhuo Niu and Qing Wang

Mathematical Problems in Engineering, 2015, vol. 2015, 1-11

Abstract:

The problem of robust fault detection filter (FDF) design and optimization is investigated for a class of networked control systems (NCSs) with random delays. The NCSs are modeled as Markovian jump systems (MJSs) by assuming that the random delays obey a Markov chain. Based on the model, an observer-based residual generator is constructed and the corresponding fault detection problem is formulated as an filtering problem by which the error between the residual signal and the fault is made as small as possible. A sufficient condition for the existence of the desired FDF is derived in terms of linear matrix inequalities (LMIs). Furthermore, to improve the performance of the robust fault detection systems, a time domain optimization approach is proposed. The solution of the optimization problem is given in the form of Moore-Penrose inverse of matrix. A numerical example is provided to illustrate the effectiveness and potential of the proposed approach.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:231749

DOI: 10.1155/2015/231749

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