首页|On monitoring industrial processes under feedback control
On monitoring industrial processes under feedback control
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NSTL
Wiley
The concurrent use of statistical process control and engineering process control involves monitoring manipulated and controlled variables. One multivariate control chart may handle the statistical monitoring of all variables, but observing the manipulated and controlled variables in separate control charts may improve understanding of how disturbances and the controller performance affect the process. In this article, we illustrate how step and ramp disturbances manifest themselves in a single-input-single-output system by studying their resulting signatures in the controlled and manipulated variables. The system is controlled by variations of the widely used proportional-integral-derivative(PID) control scheme. Implications for applying control charts for these scenarios are discussed.
control chartsdisturbance signaturesengineering process control (EPC)proportional-integral-derivative (PID)statistical process control (SPC)
Capaci, Francesca、Vanhatalo, Erik、Palazoglu, Ahmet、Bergquist, Bjarne、Kulahci, Murat
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Lulea Univ Technol, Dept Business Adm Technol & Social Sci, Lulea, Sweden
Univ Calif Davis, Dept Chem Engn, Davis, CA 95616 USA
Lulea Univ Technol, Dept Business Adm Technol & Social Sci, Lulea, Sweden|Tech Univ Denmark, Dept Appl Math & Comp Sci, Lyngby, Denmark
NETL
NSTL
Wiley
