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Control loop performance assessment using ordinal time ...
17th European Symposium on Computer Aided Process Engineering ESCAPE17 V. Plesu and Agachi (Editors) 2007 Elsevier All rights reserved. 1 Control loop performance assessment using ordinal time series analysis Ernesto Mart neza, C sar de Pradab aCONICET/UTN, Avellaneda 3657, Santa Fe 3000, Argentina, bUNIVERSIDAD DE VALLADOLID, 47011 Valladolid, Spain, Abstract Both safety and economy of process plants are heavily dependent on the proper functioning of several thousand Control loops regulating or optimizing unit and plant-wide performance over a wide range of operating conditions. In this work ordinal methods for analyzing controller s error are proposed by focussing on merely comparing error values beyond a proper Control horizon.
Control loop performance assessment using ordinal time series analysis 3 to take the frequencies of order patterns in a data set as an indication of the loop condition.
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