Title :
Robust fault detection observer design for LTI systems based on GKYP lemma
Author :
Xiukun Wei ; Verhaegen, Michel
Author_Institution :
Delft Center for Syst. & Control, Delft Univ. of Technol., Delft, Netherlands
Abstract :
This paper addresses the robust fault detection observer design issue for linear time invariant (LTI) systems with parameter uncertainties in a polytope and subjected to unknown inputs. The observer design is investigated under the H∞/H- index framework in the finite frequency domain where the generalized KYP lemma is utilized. The threshold design and the worst undetectable fault size estimation are discussed. An example is given to illustrate the results obtained in this paper.
Keywords :
control system synthesis; fault tolerant control; frequency-domain analysis; linear systems; observers; robust control; uncertain systems; GKYP lemma; H∞ index framework; H- index framework; LTI systems; finite frequency domain; generalized KYP lemma; linear time invariant systems; parameter uncertainties; robust fault detection observer design issue; threshold design; worst undetectable fault size estimation; Fault detection; Frequency-domain analysis; Indexes; Observers; Robustness; Transfer functions; Vectors;
Conference_Titel :
Control Conference (ECC), 2009 European
Conference_Location :
Budapest
Print_ISBN :
978-3-9524173-9-3
