Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation

The problem concerning the optimal placement and sizing of renewable energy resources and battery energy storage systems in electrical DC distribution networks is addressed in this research by proposing a new mathematical formulation. The exact mixed-integer nonlinear programming (MINLP) model is tr...

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Autores:
Basto-Gil, Jerson Daniel
Maldonado-Cardenas, Angel David
Montoya, Oscar Danilo
Tipo de recurso:
Fecha de publicación:
2022
Institución:
Universidad Tecnológica de Bolívar
Repositorio:
Repositorio Institucional UTB
Idioma:
eng
OAI Identifier:
oai:repositorio.utb.edu.co:20.500.12585/12425
Acceso en línea:
https://hdl.handle.net/20.500.12585/12425
Palabra clave:
Convex optimization
Energy storage systems
McCormick envelopes
Mixed-integer convex model
Renewable energy sources
Rights
openAccess
License
http://creativecommons.org/licenses/by-nc-nd/4.0/
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dc.title.spa.fl_str_mv Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation
title Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation
spellingShingle Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation
Convex optimization
Energy storage systems
McCormick envelopes
Mixed-integer convex model
Renewable energy sources
title_short Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation
title_full Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation
title_fullStr Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation
title_full_unstemmed Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation
title_sort Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation
dc.creator.fl_str_mv Basto-Gil, Jerson Daniel
Maldonado-Cardenas, Angel David
Montoya, Oscar Danilo
dc.contributor.author.none.fl_str_mv Basto-Gil, Jerson Daniel
Maldonado-Cardenas, Angel David
Montoya, Oscar Danilo
dc.subject.keywords.spa.fl_str_mv Convex optimization
Energy storage systems
McCormick envelopes
Mixed-integer convex model
Renewable energy sources
topic Convex optimization
Energy storage systems
McCormick envelopes
Mixed-integer convex model
Renewable energy sources
description The problem concerning the optimal placement and sizing of renewable energy resources and battery energy storage systems in electrical DC distribution networks is addressed in this research by proposing a new mathematical formulation. The exact mixed-integer nonlinear programming (MINLP) model is transformed into a mixed-integer convex model using McCormick envelopes regarding the product between two positive variables. Convex theory allows ensuring that the global optimum is found due to the linear equivalent structure of the solution space and the quadratic structure of the objective function when all the binary variables are defined. Numerical results in the 21-bus system demonstrate the effectiveness and robustness of the proposed solution methodology when compared to the solution reached by solving the exact MINLP model. Numerical results showed that the simultaneous allocation of batteries and renewable energy resources allows for the best improvements in the daily operating costs, i.e., about 53.29% with respect to the benchmark case of the 21-bus grid, followed by the scenario where the renewable energy resources are reallocated while considering a fixed location for the batteries, with an improvement of 43.33%. In addition, the main result is that the difference between the exact modeling and the proposed formulation regarding the final objective function was less than 3.90% for all the simulation cases, which demonstrated the effectiveness of the proposed approach for operating distributed energy resources in monopolar DC networks.
publishDate 2022
dc.date.issued.none.fl_str_mv 2022-09-30
dc.date.accessioned.none.fl_str_mv 2023-07-25T12:09:56Z
dc.date.available.none.fl_str_mv 2023-07-25T12:09:56Z
dc.date.submitted.none.fl_str_mv 2023-07
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dc.identifier.citation.spa.fl_str_mv Basto-Gil, J.D.; Maldonado-Cardenas, A.D.; Montoya, O.D. Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation. Electronics 2022, 11, 3139. https://doi.org/10.3390/electronics11193139
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12585/12425
dc.identifier.doi.none.fl_str_mv 10.3390/electronics11193139
dc.identifier.instname.spa.fl_str_mv Universidad Tecnológica de Bolívar
dc.identifier.reponame.spa.fl_str_mv Repositorio Universidad Tecnológica de Bolívar
identifier_str_mv Basto-Gil, J.D.; Maldonado-Cardenas, A.D.; Montoya, O.D. Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation. Electronics 2022, 11, 3139. https://doi.org/10.3390/electronics11193139
10.3390/electronics11193139
Universidad Tecnológica de Bolívar
Repositorio Universidad Tecnológica de Bolívar
url https://hdl.handle.net/20.500.12585/12425
dc.language.iso.spa.fl_str_mv eng
language eng
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dc.rights.cc.*.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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dc.format.extent.none.fl_str_mv 18 páginas
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dc.publisher.place.spa.fl_str_mv Cartagena de Indias
dc.source.spa.fl_str_mv Electronics (Switzerland) - Vol. 11 No. 19 (2022)
institution Universidad Tecnológica de Bolívar
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spelling Basto-Gil, Jerson Daniel0a68880d-2aa8-47dc-b1ec-588aaf4e0fbaMaldonado-Cardenas, Angel David628002e7-b48e-405b-8840-247e7b9e9742Montoya, Oscar Danilo9fa8a75a-58fa-436d-a6e2-d80f718a4ea82023-07-25T12:09:56Z2023-07-25T12:09:56Z2022-09-302023-07Basto-Gil, J.D.; Maldonado-Cardenas, A.D.; Montoya, O.D. Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulation. Electronics 2022, 11, 3139. https://doi.org/10.3390/electronics11193139https://hdl.handle.net/20.500.12585/1242510.3390/electronics11193139Universidad Tecnológica de BolívarRepositorio Universidad Tecnológica de BolívarThe problem concerning the optimal placement and sizing of renewable energy resources and battery energy storage systems in electrical DC distribution networks is addressed in this research by proposing a new mathematical formulation. The exact mixed-integer nonlinear programming (MINLP) model is transformed into a mixed-integer convex model using McCormick envelopes regarding the product between two positive variables. Convex theory allows ensuring that the global optimum is found due to the linear equivalent structure of the solution space and the quadratic structure of the objective function when all the binary variables are defined. Numerical results in the 21-bus system demonstrate the effectiveness and robustness of the proposed solution methodology when compared to the solution reached by solving the exact MINLP model. Numerical results showed that the simultaneous allocation of batteries and renewable energy resources allows for the best improvements in the daily operating costs, i.e., about 53.29% with respect to the benchmark case of the 21-bus grid, followed by the scenario where the renewable energy resources are reallocated while considering a fixed location for the batteries, with an improvement of 43.33%. In addition, the main result is that the difference between the exact modeling and the proposed formulation regarding the final objective function was less than 3.90% for all the simulation cases, which demonstrated the effectiveness of the proposed approach for operating distributed energy resources in monopolar DC networks.18 páginasPdfapplication/pdfenghttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://purl.org/coar/access_right/c_abf2Electronics (Switzerland) - Vol. 11 No. 19 (2022)Optimal Selection and Integration of Batteries and Renewable Generators in DC Distribution Systems through a Mixed-Integer Convex Formulationinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/drafthttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/version/c_b1a7d7d4d402bccehttp://purl.org/coar/resource_type/c_2df8fbb1Convex optimizationEnergy storage systemsMcCormick envelopesMixed-integer convex modelRenewable energy sourcesCartagena de IndiasNandini, K.K., Jayalakshmi, N.S., Jadoun, V.K. An overview of DC Microgrid with DC distribution system for DC loads (2021) Materials Today: Proceedings, Part 1 51, pp. 635-639. Cited 8 times. https://www.sciencedirect.com/journal/materials-today-proceedings doi: 10.1016/j.matpr.2021.06.093Stieneker, M., De Doncker, R.W. Medium-voltage DC distribution grids in urban areas (2016) 2016 IEEE 7th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2016, art. no. 7527045. Cited 73 times. ISBN: 978-146738616-6 doi: 10.1109/PEDG.2016.7527045Montoya, O.D., Serra, F.M., De Angelo, C.H. On the efficiency in electrical networks with ac and dc operation technologies: A comparative study at the distribution stage (2020) Electronics (Switzerland), 9 (9), art. no. 1352, pp. 1-23. Cited 32 times. https://www.mdpi.com/2079-9292/9/9/1352/pdf doi: 10.3390/electronics9091352Elattar, E.E., Elattar, E.E., Elsayed, S.K., Elsayed, S.K. Optimal Location and Sizing of Distributed Generators Based on Renewable Energy Sources Using Modified Moth Flame Optimization Technique (Open Access) (2020) IEEE Access, 8, art. no. 9114999, pp. 109625-109638. Cited 34 times. http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639 doi: 10.1109/ACCESS.2020.3001758Paul, S., Dey, T., Saha, P., Dey, S., Sen, R. Review on the development scenario of renewable energy in different country (2021) 2021 Innovations in Energy Management and Renewable Resources, IEMRE 2021, art. no. 9386748. Cited 35 times. http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=9386328 ISBN: 978-166541259-9 doi: 10.1109/IEMRE52042.2021.9386748Nath, U.K., Sen, R. A Comparative Review on Renewable Energy Application, Difficulties and Future Prospect (2021) 2021 Innovations in Energy Management and Renewable Resources, IEMRE 2021, art. no. 9386520. Cited 10 times. http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=9386328 ISBN: 978-166541259-9 doi: 10.1109/IEMRE52042.2021.9386520Staffell, I., Pfenninger, S. The increasing impact of weather on electricity supply and demand (Open Access) (2018) Energy, 145, pp. 65-78. Cited 157 times. www.elsevier.com/inca/publications/store/4/8/3/ doi: 10.1016/j.energy.2017.12.051Dostál, Z., Ladányi, L. Demands on energy storage for renewable power sources (2018) Journal of Energy Storage, 18, pp. 250-255. Cited 52 times. http://www.journals.elsevier.com/journal-of-energy-storage/ doi: 10.1016/j.est.2018.05.003Guerrero, J., Blaabjerg, F., Zhelev, T., Hemmes, K., Monmasson, E., Jemeï, S., Comech, M.P., (...), Frau, J.I. Distributed generation: Toward a new energy paradigm (2010) IEEE Industrial Electronics Magazine, 4 (1), art. no. 5439058, pp. 52-64. Cited 417 times. doi: 10.1109/MIE.2010.935862Sibtain, D., Murtaza, A.F., Ahmed, N., Sher, H.A., Gulzar, M.M. Multi control adaptive fractional order PID control approach for PV/wind connected grid system (2021) International Transactions on Electrical Energy Systems, 31 (4), art. no. e12809. Cited 27 times. http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2050-7038 doi: 10.1002/2050-7038.12809Magaldi, G.L., Serra, F.M., de Angelo, C.H., Montoya, O.D., Giral-Ramírez, D.A. Voltage regulation of an isolated dc microgrid with a constant power load: A passivity-based control design (Open Access) (2021) Electronics (Switzerland), 10 (17), art. no. 2085. Cited 11 times. https://www.mdpi.com/2079-9292/10/17/2085/pdf doi: 10.3390/electronics10172085Grisales, L.F., Grajales, A., Montoya, O.D., Hincapie, R.A., Granada, M., Castro, C.A. Optimal location, sizing and operation of energy storage in distribution systems using multi-objective approach (Open Access) (2017) IEEE Latin America Transactions, 15 (6), art. no. 7932696, pp. 1084-1090. Cited 25 times. http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=9907 doi: 10.1109/TLA.2017.7932696Gil-González, W., Montoya, O.D., Grisales-Noreña, L.F., Cruz-Peragón, F., Alcalá, G. Economic dispatch of renewable generators and BESS in DC microgrids using second-order cone optimization (2020) Energies, 13 (7), art. no. en13071703. Cited 27 times. https://www.mdpi.com/1996-1073/13/7/1703 doi: 10.3390/en13071703Akinyele, D.O., Rayudu, R.K. Review of energy storage technologies for sustainable power networks (Open Access) (2014) Sustainable Energy Technologies and Assessments, 8, pp. 74-91. Cited 492 times. http://www.journals.elsevier.com/sustainable-energy-technologies-and-assessments doi: 10.1016/j.seta.2014.07.004AL Shaqsi, A.Z., Sopian, K., Al-Hinai, A. Review of energy storage services, applications, limitations, and benefits (Open Access) (2020) Energy Reports, 6, pp. 288-306. Cited 246 times. http://www.journals.elsevier.com/energy-reports/ doi: 10.1016/j.egyr.2020.07.028Olabi, A.G., Onumaegbu, C., Wilberforce, T., Ramadan, M., Abdelkareem, M.A., Al – Alami, A.H. Critical review of energy storage systems (Open Access) (2021) Energy, 214, art. no. 118987. Cited 285 times. https://www.journals.elsevier.com/energy doi: 10.1016/j.energy.2020.118987Karanja, J.M., Hinga, P.K., Ngoo, L.M., Muriithi, C.M. Optimal Battery Location for Minimizing the Total Cost of Generation in a Power System (2020) 2020 IEEE PES/IAS PowerAfrica, PowerAfrica 2020, art. no. 9219804. Cited 4 times. http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=9211329 ISBN: 978-172816746-6 doi: 10.1109/PowerAfrica49420.2020.9219804Serra, F.M., Montoya, O.D., Alvarado-Barrios, L., Álvarez-Arroyo, C., Chamorro, H.R. On the optimal selection and integration of batteries in dc grids through a mixed-integer quadratic convex formulation (2021) Electronics (Switzerland), 10 (19), art. no. 2339. Cited 5 times. https://www.mdpi.com/2079-9292/10/19/2339/pdf doi: 10.3390/electronics10192339Montoya, O.D. A convex OPF approximation for selecting the best candidate nodes for optimal location of power sources on DC resistive networks (2020) Engineering Science and Technology, an International Journal, 23 (3), pp. 527-533. Cited 22 times. www.journals.elsevier.com/engineering-science-and-technology-an-international-journal/ doi: 10.1016/j.jestch.2019.06.010Wong, L.A., Ramachandaramurthy, V.K. Optimal allocation of battery energy storage system using whale optimization algorithm (2021) International Conference on Electrical, Computer, Communications and Mechatronics Engineering, ICECCME 2021. Cited 2 times. http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=9590450 ISBN: 978-166541262-9 doi: 10.1109/ICECCME52200.2021.9591039Home-Ortiz, J.M., Pourakbari-Kasmaei, M., Lehtonen, M., Sanches Mantovani, J.R. Optimal location-allocation of storage devices and renewable-based DG in distribution systems (Open Access) (2019) Electric Power Systems Research, 172, pp. 11-21. Cited 88 times. doi: 10.1016/j.epsr.2019.02.013Grisales-Noreña, L.F., Montoya, O.D., Ramos-Paja, C.A. An energy management system for optimal operation of BSS in DC distributed generation environments based on a parallel PSO algorithm (2020) Journal of Energy Storage, 29, art. no. 101488. Cited 58 times. http://www.journals.elsevier.com/journal-of-energy-storage/ doi: 10.1016/j.est.2020.101488Gil-González, W., Montoya, O.D., Holguín, E., Garces, A., Grisales-Noreña, L.F. Economic dispatch of energy storage systems in dc microgrids employing a semidefinite programming model (Open Access) (2019) Journal of Energy Storage, 21, pp. 1-8. Cited 90 times. http://www.journals.elsevier.com/journal-of-energy-storage/ doi: 10.1016/j.est.2018.10.025Kerdphol, T., Tripathi, R.N., Hanamoto, T., Khairudin, Qudaih, Y., Mitani, Y. ANN based optimized battery energy storage system size and loss analysis for distributed energy storage location in PV-microgrid (Open Access) (2015) Proceedings of the 2015 IEEE Innovative Smart Grid Technologies - Asia, ISGT ASIA 2015, art. no. 7387074. Cited 14 times. ISBN: 978-150901238-1 doi: 10.1109/ISGT-Asia.2015.7387074Li, J., Liu, F., Wang, Z., Low, S.H., Mei, S. Optimal Power Flow in Stand-Alone DC Microgrids (Open Access) (2018) IEEE Transactions on Power Systems, 33 (5), art. no. 8279503, pp. 5496-5506. Cited 113 times. doi: 10.1109/TPWRS.2018.2801280Ploskas, N., Sahinidis, N.V. Review and comparison of algorithms and software for mixed-integer derivative-free optimization (Open Access) (2022) Journal of Global Optimization, 82 (3), pp. 433-462. Cited 7 times. www.kluweronline.com/issn/0925-5001/ doi: 10.1007/s10898-021-01085-0Torres, J.J., Li, C., Apap, R.M., Grossmann, I.E. A Review on the Performance of Linear and Mixed Integer Two-Stage Stochastic Programming Software (Open Access) (2022) Algorithms, 15 (4), art. no. 103. Cited 7 times. https://www.mdpi.com/1999-4893/15/4/103/pdf doi: 10.3390/a15040103Garces, A. On the convergence of Newton's method in power flow studies for dc microgrids (2018) IEEE Transactions on Power Systems, 33 (5), art. no. 8327530, pp. 5770-5777. 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