A segmentation‐based method for detection of stiction in control valves
2003; Wiley; Volume: 17; Issue: 7-9 Linguagem: Inglês
10.1002/acs.769
ISSN1099-1115
AutoresAnders Stenman, Fredrik Gustafsson, Krister Forsman,
Tópico(s)Hydraulic and Pneumatic Systems
ResumoAbstract A method for detecting static friction (stiction) in control valves is proposed. The method is model‐based and is inspired by ideas from the fields of change detection and multi‐model mode estimation. Opposed to existing methods only limited process knowledge is needed and it is not required that the loop has oscillating behaviour. The advantage of the method is illustrated in both numerical simulations and evaluations on real loop data. Copyright © 2003 John Wiley & Sons, Ltd.
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