Fault reconstruction for Lipschitz nonlinear descriptor systems via linear matrix inequality approach

Gao, Zhiwei and Ding, Steven X. (2008) Fault reconstruction for Lipschitz nonlinear descriptor systems via linear matrix inequality approach. Circuits, Systems & Signal Processing, 27 (3). pp. 295-308. ISSN 0278-081X

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Abstract

By using the linear matrix inequality for a nonlinear descriptor system with a Lipschitz constraint, a state-space observer is designed to simultaneously reconstruct the descriptor system states and the fault signals. For a nonlinear descriptor system with bounded input disturbances, a robust state-space observer is proposed to simultaneously reconstruct the descriptor system states and the faults and attenuate the input bounded disturbances. The fault considered can be unbounded (provided that the qth derivative of the fault is zero piecewise or norm bounded); thus, the present fault reconstruction approach can handle a large class of fault signals including time-invariant and time-varying signals. A numerical example is given to illustrate the proposed design approach

Item Type:	Article
Subjects:	H900 Others in Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Sarah Howells
Date Deposited:	24 Oct 2012 11:29
Last Modified:	12 Oct 2019 19:06
URI:	http://nrl.northumbria.ac.uk/id/eprint/9913

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