Comparison of plant-wide oscillation detection methods
Tan, Wei Teck
Tan, Chee Kiong
Date of Issue2007
IEEE International Conference on Control Applications (16th : 2007 : Singapore)
School of Chemical and Biomedical Engineering
Plant-wide oscillations are common in many industrial processes. During the past few years, various methods have been proposed for the detection of plant-wide oscillations, including methods based on the autocorrelation function, the independent components analysis (ICA) and the spectral envelope. This article is aimed at understanding the advantages and limitations of the available methods using simulated data sets. The ICA based method is also improved by deriving approaches for determining the number of dominant ICs and for differentiating between oscillatory and non-oscillatory ICs.
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