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Input reconstruction for statistical‐based fault detection and isolation
Author(s) -
Schubert Udo,
Kruger Uwe,
Wozny Günter,
ArellanoGarcia Harvey
Publication year - 2012
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.12693
Subject(s) - fault detection and isolation , fractionating column , scheme (mathematics) , process (computing) , fault (geology) , batch distillation , actuator , work in process , computer science , distillation , statistical process control , engineering , control engineering , artificial intelligence , mathematics , chromatography , chemistry , fractional distillation , mathematical analysis , operations management , seismology , geology , operating system
In this work, an input reconstruction scheme for detecting and isolating sensor, actuator, and process faults is proposed. The scheme uses model‐based and statistical‐based FDI methods, which yields an improved analysis of abnormal operation conditions in chemical processes. The main advantage of the proposed approach over existing works lies in the reconstruction of system inputs and the subsequent estimation of fault signatures. This advantage is demonstrated through simulation examples and the analysis of recorded process data from a reactive batch distillation column. © 2011 American Institute of Chemical Engineers AIChE J, 2012