Abstract
AbstractThis paper describes the currently available techniques for root‐cause diagnosis of plantwide oscillation and future directions for research in this area. Plantwide oscillation arises mainly for three reasons: (1) tight controller tuning, (2) loop interactions and (3) presence of nonlinear faults such as valve stiction and sensor faults. Plantwide oscillation is detrimental for plant operation because it causes large variability in the control loops resulting in reduced profitability due to inferior quality products, larger rejection rates, reduction in average throughput and increase in energy requirements. Copyright © 2011 Curtin University of Technology and John Wiley & Sons, Ltd.
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