Article | Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016 | From Iterative Balance Models to Directly Calculating Explicit Models for Real-time Process Optimization and Scheduling Linköping University Electronic Press Conference Proceedings
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Title:
From Iterative Balance Models to Directly Calculating Explicit Models for Real-time Process Optimization and Scheduling
Author:
Tomas Björkqvist: Department of Automation Science and Engineering, Tampere University of Technology, Finland Olli Suominen: Department of Automation Science and Engineering, Tampere University of Technology, Finland Matti Vilkko: Department of Automation Science and Engineering, Tampere University of Technology, Finland Mikko Korpi: Research Center Pori, Outotec Oy, Finland
DOI:
10.3384/ecp17142201
Download:
Full text (pdf)
Year:
2018
Conference:
Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016
Issue:
142
Article no.:
029
Pages:
201-206
No. of pages:
6
Publication type:
Abstract and Fulltext
Published:
2018-12-19
ISBN:
978-91-7685-399-3
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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Optimal utilization of complex processes involves real-time operational optimization and scheduling, especially in cases where the production line consists of both continuous and batch operated unit processes. This kind of real-time optimization requires process models which can be computed significantly faster than real-time. Iterative balance calculation is typically far too slow for these cases. This paper presents a method for converting an iterative balance model to a directly calculating model suitable for on-line process optimization. The approach is demonstrated with the first unit process in the copper smelting line, the flash smelting furnace (FSF). The method consisted of formulating an equation group based on the constrained FSF HSC-Sim model and solving the unknown parameters and static states with use of a symbolic calculation software. The solution was implemented as a function whose calculation time fulfilled the requirements for scheduling use.

Keywords: real-time model, static, mass balance, equation group, symbolic computation, metallurgy, copper smelting, scheduling

Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016

Author:
Tomas Björkqvist, Olli Suominen, Matti Vilkko, Mikko Korpi
Title:
From Iterative Balance Models to Directly Calculating Explicit Models for Real-time Process Optimization and Scheduling
DOI:
http://dx.doi.org/10.3384/ecp17142201
References:
No references available

Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016

Author:
Tomas Björkqvist, Olli Suominen, Matti Vilkko, Mikko Korpi
Title:
From Iterative Balance Models to Directly Calculating Explicit Models for Real-time Process Optimization and Scheduling
DOI:
https://doi.org10.3384/ecp17142201
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Last updated: 2019-10-02