Optimized model-based control of main mine ventilation air flows with minimized energy consumption
In early 2018, the Boliden Garpenberg operation implemented an optimized control strategy as an addition to the existing ventilation on demand system. The purpose of the strategy is to further minimize energy use for main and booster fans, whilst also fulfilling airflow setpoints without violating c...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-07-01
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| Series: | International Journal of Mining Science and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095268620304626 |
| _version_ | 1811222711071932416 |
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| author | S. Sjöström E. Klintenäs P. Johansson J. Nyqvist |
| author_facet | S. Sjöström E. Klintenäs P. Johansson J. Nyqvist |
| author_sort | S. Sjöström |
| collection | DOAJ |
| description | In early 2018, the Boliden Garpenberg operation implemented an optimized control strategy as an addition to the existing ventilation on demand system. The purpose of the strategy is to further minimize energy use for main and booster fans, whilst also fulfilling airflow setpoints without violating constraints such as min/max differential pressure over fans and interaction of air between areas in mines. Using air flow measurements and a dynamical model of the ventilation system, a mine-wide coordination control of fans can be carried out. The numerical model is data driven and derived from historical operational data or step changes experiments. This makes both initial deployment and lifetime model maintenance, as the mine evolves, a comparably easy operation. The control has been proven to operate in a stable manner over long periods without having to re-calibrate the model. Results prove a 40% decrease in energy use for the fans involved and a greater controllability of air flow. Moreover, a 15% decrease of the total air flow into the mine will give additional proportional heating savings during winter periods. All in all, the multivariable controller shows a correlation between production in the mine and the ventilation system performance superior to all of its predecessors. |
| first_indexed | 2024-04-12T08:20:46Z |
| format | Article |
| id | doaj.art-3a4ecf47192e46258c88a5bd8ad85237 |
| institution | Directory Open Access Journal |
| issn | 2095-2686 |
| language | English |
| last_indexed | 2024-04-12T08:20:46Z |
| publishDate | 2020-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Mining Science and Technology |
| spelling | doaj.art-3a4ecf47192e46258c88a5bd8ad852372022-12-22T03:40:36ZengElsevierInternational Journal of Mining Science and Technology2095-26862020-07-01304533539Optimized model-based control of main mine ventilation air flows with minimized energy consumptionS. Sjöström0E. Klintenäs1P. Johansson2J. Nyqvist3Corresponding author.; Department IAPI – Mining Automation, ABB AB, Umeå 1400, 901 24, SwedenDepartment IAPI – Mining Automation, ABB AB, Umeå 1400, 901 24, SwedenDepartment IAPI – Mining Automation, ABB AB, Umeå 1400, 901 24, SwedenDepartment IAPI – Mining Automation, ABB AB, Umeå 1400, 901 24, SwedenIn early 2018, the Boliden Garpenberg operation implemented an optimized control strategy as an addition to the existing ventilation on demand system. The purpose of the strategy is to further minimize energy use for main and booster fans, whilst also fulfilling airflow setpoints without violating constraints such as min/max differential pressure over fans and interaction of air between areas in mines. Using air flow measurements and a dynamical model of the ventilation system, a mine-wide coordination control of fans can be carried out. The numerical model is data driven and derived from historical operational data or step changes experiments. This makes both initial deployment and lifetime model maintenance, as the mine evolves, a comparably easy operation. The control has been proven to operate in a stable manner over long periods without having to re-calibrate the model. Results prove a 40% decrease in energy use for the fans involved and a greater controllability of air flow. Moreover, a 15% decrease of the total air flow into the mine will give additional proportional heating savings during winter periods. All in all, the multivariable controller shows a correlation between production in the mine and the ventilation system performance superior to all of its predecessors.http://www.sciencedirect.com/science/article/pii/S2095268620304626Mine ventilationVentilation on demandOptimized model-based controlMinimized energy consumptionAdvanced process control |
| spellingShingle | S. Sjöström E. Klintenäs P. Johansson J. Nyqvist Optimized model-based control of main mine ventilation air flows with minimized energy consumption International Journal of Mining Science and Technology Mine ventilation Ventilation on demand Optimized model-based control Minimized energy consumption Advanced process control |
| title | Optimized model-based control of main mine ventilation air flows with minimized energy consumption |
| title_full | Optimized model-based control of main mine ventilation air flows with minimized energy consumption |
| title_fullStr | Optimized model-based control of main mine ventilation air flows with minimized energy consumption |
| title_full_unstemmed | Optimized model-based control of main mine ventilation air flows with minimized energy consumption |
| title_short | Optimized model-based control of main mine ventilation air flows with minimized energy consumption |
| title_sort | optimized model based control of main mine ventilation air flows with minimized energy consumption |
| topic | Mine ventilation Ventilation on demand Optimized model-based control Minimized energy consumption Advanced process control |
| url | http://www.sciencedirect.com/science/article/pii/S2095268620304626 |
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