World Environmental and Water Resources Congress 2020
Optimal Pump Scheduling for the Newly Built São Lourenço Water Supply System in the Metropolitan Region of São Paulo
Publication: World Environmental and Water Resources Congress 2020: Water Resources Planning and Management and Irrigation and Drainage
ABSTRACT
The metropolitan region of São Paulo (MRSP) suffered a record-breaking drought period between 2013 and 2018. With 21.5 million inhabitants, the region has one of the largest water supply systems in the world, consisting of ten partially interlinked reservoir systems. A set of mitigation measures and expansion works were adopted during the last few years to recover from the recent drought and improve reliability and resilience of water supply. For example, the newly built São Lourenço water supply system is comprised of catchment structures, pumping stations, a water main, and water treatment plant (WTP). This system is able to supply water to approximately two million people and plays a complementary but important role in increasing water security in MRSP. While the system competes with energy production in a highly productive hydropower cascade, it has an installed capacity of 6 m3/s, head near 400 m, and a 50 km long water main (its diameter is equal to 2,100 mm). Permitted average water withdrawal is 4.7 m3/s. Other features of this system are three raw water tanks at the entrance of WTP, with a volume of 25,000 m3 each, which helps to minimize pumping during peak hours. This paper studies linear and mixed integer programming applied to optimize the short-term pump scheduling and raw water tanks operation of the São Lourenço system, considering peak and off-peak prices of energy, variation of demand, cleaning and maintenance services, and stops/starts constraints.
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ACKNOWLEDGEMENTS
The research reported herein was supported by the Fundação Centro Tecnológico de Hidráulica (FCTH), Brazil. Additional support and data for the study case were supplied by the São Paulo State Sanitation Company (Sabesp).
REFERENCES
Arado, C. G. (2018). “O desafio do carregamento e operacionalização da adutora de água bruta do Sistema Produtor São Lourenço.” Encontro Técnico da AESabesp - 29oCongresso Nacional de Saneamento e Meio Ambiente, São Paulo.
Barros, M. T. L., Zambon, R. C., Barbosa, P. S. F., and Yeh, W. W.-G. (2008). “Planning and Operation of Large-Scale Water Distribution Systems with Preemptive Priorities.” Journal of Water Resources Planning and Management, 134(3), 247–256.
Borghetti, A., D’Ambrosio, C., Lodi, A., and Martello, S. (2008). “An MILP Approach for Short-Term Hydro Scheduling and Unit Commitment With Head-Dependent Reservoir.” IEEE Transactions on Power Systems, 23(3), 1115–1124.
Chang, G. W., Aganagic, M., Waight, J. G., Medina, J., Burton, T., Reeves, S., and Christoforidis, M. (2001). “Based Approaches on Short-Term Hydro Scheduling.” IEEE Transactions on Power Systems, 16(4), 743–749.
GAMS. (2019). “General Algebraic Modeling System.” <http://www.gams.com>.
IBGE. (2019). “Instituto Brasileiro de Geografia e Estatística.” <https://www.ibge.gov.br>.
Labadie, J. W. (2004). “Optimal Operation of Multireservoir Systems: State-of-the-Art Review.” Journal of Water Resources Planning and Management, 130(2), 93–111.
Loucks, D. P., Beek, E. van, Stedinger, J. R., Dijkman, J. P. M., and Villars, M. T. (2005). Water Resources Systems Planning and Management: An Introduction to Methods, Models and Applications. UNESCO, Paris.
Mann, M. E., and Gleick, P. H. (2015). “Climate change and California drought in the 21st century.” Proceedings of the National Academy of Sciences, 112(13), 3858–3859.
Marins, J. C., Chang, A. I. C., Zambon, R. C., and Yeh, W. W.-G. (2019). “Facing the Drought and New Water Supply Planning Challenges in the Metropolitan Region of São Paulo José.” World Environmental and Water Resources Congress 2019, American Society of Civil Engineers, Reston, VA, 107–118.
Martin-Ortega, J., González-Eguino, M., and Markandya, A. (2012). “The costs of drought: The 2007/2008 case of Barcelona.” Water Policy, 14(3), 539–560.
Ormsbee, L. E., and Lansey, K. E. (1994). “Optimal Control of Water Supply Pumping Systems.” Journal of Water Resources Planning and Management, 120(2), 237–252.
Sabesp. (2015). CHESS: Crise Hídrica, Estratégia e Soluções da Sabesp. São Paulo.
Sabesp. (2019). “Situação dos Mananciais Sabesp - RMSP.” <http://mananciais.sabesp.com.br/>.
Selek, I., Bene, J. G., and Hs, C. (2012). “Optimal (short-term) pump schedule detection for water distribution systems by neutral evolutionary search.” Applied Soft Computing Journal, 12(8), 2336–2351.
Simonovic, S. P. (1992). “Reservoir Systems Analysis: Closing Gap between Theory and Practice.” Journal of Water Resources Planning and Management, 118(3), 262–280.
Suzuki, A. H., Zambon, R. C., and Yeh, W. W.-G. (2015). “Water Supply Planning and Operation in the Metropolitan Region of São Paulo: Worst Drought in History, Conflicts, Response, and Resilience.” World Environmental and Water Resources Congress 2015, American Society of Civil Engineers, Reston, VA, 2226–2235.
Yeh, W. W.-G. (1985). “Reservoir Management and Operations Models: A State-of-the-Art Review.” Water Resources Research, 21(12), 1797–1818.
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Published In
World Environmental and Water Resources Congress 2020: Water Resources Planning and Management and Irrigation and Drainage
Pages: 220 - 230
Editors: Sajjad Ahmad, Ph.D., and Regan Murray, Ph.D.
ISBN (Online): 978-0-7844-8295-7
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: May 14, 2020
Published in print: May 14, 2020
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