Journal
JOURNAL OF PROCESS CONTROL
Volume 20, Issue 8, Pages 957-965Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jprocont.2010.06.018
Keywords
Subspace methods; Singular value decomposition; Recursive algorithms; Fault detection; Observers
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This paper deals with the recursive identification of the parity space based fault detection systems. We propose two such algorithms that update the eigenstructure after every new measurement with significantly less computational cost. Its immediate application is in the design of adaptive parity space based residual generators. The method improves the fault detection performance against uncertain changes, especially the frequent shifts in operating points, or parameter variations. The algorithms are compared with the existing techniques and applied to the hybrid simulation platform of continuously stirred tank heater. (C) 2010 Elsevier Ltd. All rights reserved.
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