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Hierarchical Produc...
Hierarchical Production Scheduling - A Case Study at Perstorp
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- Lindholm, Anna (författare)
- Lund University,Lunds universitet,Institutionen för reglerteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Automatic Control,Departments at LTH,Faculty of Engineering, LTH,Lund University, Sweden
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- Lidestam, Helene (författare)
- Linköpings universitet,Produktionsekonomi,Tekniska högskolan
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- Quttineh, Nils-Hassan, 1979- (författare)
- Linköpings universitet,Optimeringslära,Tekniska högskolan,Division of Optimization
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(creator_code:org_t)
- Elsevier, 2014
- 2014
- Engelska.
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Ingår i: 24th European Symposium on Computer Aided Process Engineering, PTS A and B. - : Elsevier. - 1570-7946. ; 33, s. 511-516, s. 511-516
- Relaterad länk:
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https://lup.lub.lu.s...
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Planning and scheduling are functions that have large economic impact in the chemical process industry. For integrated sites with many interconnected production areas, obtaining production schedules that respect all production-related constraints is a complex task. One important issue is the constraints due to disturbances in utilities, such as steam and cooling water. These are often site-wide disturbances that may make it impossible to maintain desired production rates in several production areas at a site. In this study, scheduling at two levels of the functional hierarchy at a site of a world lead chemical industry, Perstorp, is handled. The activities are denoted production scheduling (PS) and detailed production scheduling (DPS). Real data of incoming orders and utility disturbances are used to produce a production schedule and detailed production schedule for one month. The PS and DPS problems are formulated as optimization problems, where production-related constraints such as production rate constraints, inventory limitations, and start-up costs are included. The objective functions of the PS and DPS problems are formulated to reflect the importance of different issues at the site. The procedure aims to show how the hierarchical optimization framework may be used to provide decision support for how to operate the production at a site in order to maximize profit while minimizing the effects of site-wide disturbances.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Produktionsteknik, arbetsvetenskap och ergonomi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Production Engineering, Human Work Science and Ergonomics (hsv//eng)
Nyckelord
- production scheduling
- utility disturbances
- chemical industry
- optimization
- production scheduling
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
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