Please use this identifier to cite or link to this item: https://doi.org/10.1021/ie800961f
Title: A new unified approach to valve stiction quantification and compensation
Authors: Ivan, L.Z.X.
Lakshminarayanan, S. 
Issue Date: 1-Apr-2009
Source: Ivan, L.Z.X.,Lakshminarayanan, S. (2009-04-01). A new unified approach to valve stiction quantification and compensation. Industrial and Engineering Chemistry Research 48 (7) : 3474-3483. ScholarBank@NUS Repository. https://doi.org/10.1021/ie800961f
Abstract: Satisfactory control loop performance has always been a vital objective in process industries for economic reasons. However, unsatisfactory performance may prevail, of which valve stiction is a common culprit. In this work, a new unified approach is introduced to quantify valve stiction in control loops and then compensate for it. The newly proposed stiction quantification method uses a one-parameter stiction model and is based on a modified Hammerstein identification approach. In conjunction with the stiction quantification algorithm, a novel compensation technique that adds a constant amplitude signal to the valve input signal is presented. The effectiveness of the proposed scheme is demonstrated using simulation examples. © 2009 American Chemical Society.
Source Title: Industrial and Engineering Chemistry Research
URI: http://scholarbank.nus.edu.sg/handle/10635/54554
ISSN: 08885885
DOI: 10.1021/ie800961f
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