Application of abnormal event detection (aed) technology to...

G - Physics – 06 – G

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G06G 7/48 (2006.01)

Patent

CA 2646327

The present invention is a method and system for detecting an abnormal event for process units of a Polymers Unit. The method compares the operation of the process units to statistical, engineering or heuristic models. The statistical models are developed by principle components analysis of the normal operation for these units. In addition, the engineering models are based on correlation analysis between variables or simple engineering calculations. If the difference between the operation of a process unit and the normal model result indicates an abnormal condition, then the cause of the abnormal condition is determined and corrected.

L'invention concerne un procédé et un système permettant la détection d'un événement anormal dans les unités de traitement d'une installation de transformation de polymères. Ce procédé consiste à comparer le fonctionnement des unités de traitement à des modèle statistiques, des modèles d'étude ou des modèles heuristiques. Les modèles statistiques sont mis au point par analyse en composantes principales du fonctionnement normal de ces unités. Les modèles d'étude sont fondés en outre sur une analyse de corrélation entre variables, ou sur de simples calculs d'étude. Si la différence entre le fonctionnement d'une unité de traitement et le résultat du modèle normal indique un état anormal, la cause de cet état anormal est identifiée et rectifiée.

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