Fault detection for a class of network‐based nonlinear systems with communication constraints and random packet dropouts |
| |
Authors: | Dan Zhang Li Yu Qing‐Guo Wang |
| |
Affiliation: | 1. Zhejiang Provincial United Key Laboratory of Embedded Systems, Department of Automation, Zhejiang University of Technology, Hangzhou 310032, People's Republic of ChinaDan Zhang is also with the Department of Mechanical Engineering, National University of Singapore, Singapore117576, Singapore.;2. Zhejiang Provincial United Key Laboratory of Embedded Systems, Department of Automation, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China;3. Department of Electrical and Computer Engineering, National University of Singapore, Singapore 119260, Singapore |
| |
Abstract: | This paper is dealt with the fault detection (FD) problem for a class of network‐based nonlinear systems with communication constraints and random packet dropouts. The plant is described by a Takagi–Sugeno fuzzy time‐delay model, it has multiple sensors and only one of them is actually communicated with the FD filter at each transmission instant, and the packet dropouts occur randomly. The goal is to design a FD filter such that, for all unknown inputs, control inputs, time delays and incomplete data conditions, the estimation error between the residual and ‘fault’ (or, more generally, the weighted fault) is minimized. By casting the addressed FD problem into an auxiliary H∞ filtering problem of a stochastic switched fuzzy time‐delay system, a sufficient condition for the existence of the desired FD filter is established in terms of linear matrix inequalities. A numerical example is provided to illustrate the effectiveness and applicability of the proposed technique. Copyright © 2011 John Wiley & Sons, Ltd. |
| |
Keywords: | fault detection T– S fuzzy systems time‐delay communication constraints random packet dropouts switched systems average dwell time |
|
|