Formulating an Optimization Problem for Minimization of Losses due to Utilities

Summary, in English

Utilities, such as steam and cooling water, are often shared between several production areas at industrial sites, and the effects of disturbances in utilities could thus be hard to predict. In addition, production areas could be connected because of the product flow at the site. This paper introduces a simple modeling approach for modeling the relation between utility operation and production. Using this modeling approach, an optimization problem can be formulated with the objective to minimize the economical losses due to disturbances in utilities by controlling the production of all areas at a site. The formulation of the problem is general, and thus the optimization can be performed for any site with similar structure. The results are useful for investigating the impact of plant-wide disturbances in utilities, and can provide decision support for how to control the production at utility disturbances. To enable online advise to operators on how to control the production, the posed optimization problem is solved in receding horizon fashion.

• Author: Anna Lindholm; Pontus Giselsson
• Department/s: Department of Automatic Control; ELLIIT: the Linköping-Lund initiative on IT and mobile communication
• Publishing year: 2012
• Language: English
• Pages: 55-60
• Publication/Series: 8th IFAC International Symposium on Advanced Control of Chemical Processes 2012
• Full text: - 303 kB; Download statistics
• Document type: Conference paper
• Publisher: Elsevier
• Topic: Control Engineering
• Keywords: Decision support systems.; Model-based control; Chemical industry; Utility; Production control; Optimization problems; Enterprise modelling
• Conference name: International Symposium on Advanced Control of Chemical Processes
• Conference date: 2012-07-10 - 2012-07-13
• Conference place: Singapore
• Status: Published
• Project: PICLU
• Research group: LCCC
• ISBN/ISSN/Other: ISBN: 9781622762286