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|Title:||Robust fault estimation observer in the finite frequency domain for descriptor systems|
|Citation:||International Journal of Control, 2017; OnlinePubl:1-10|
|Publisher:||Taylor & Francis|
|Zhenhua Wang, Peng Shi and Cheng-Chew Lim|
|Abstract:||This paper considers robust fault estimation in the finite frequency domain for linear continuous-time descriptor systems. Based on state augmentation, we propose a fault estimation observer with a non-singular structure. To attenuate the effect of unknown disturbance and fault variation on fault estimation, a fault estimation observer is designed in the finite frequency domain using H∞ optimisation technique. With the design conditions formulated as a set of linear matrix inequalities, the presented fault estimation observer can be efficiently designed. The applicability of the proposed method is verified by numerical simulations of a multi-machine infinite bus system.|
|Keywords:||Descriptor system; fault estimation observer; finite frequency domain; linear matrix inequalities|
|Rights:||© 2017 Informa UK Limited, trading as Taylor & Francis Group|
|Appears in Collections:||Electrical and Electronic Engineering publications|
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