On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulation

This paper deals with the problem of the optimal selection and location of batteries in DC distribution grids by proposing a new mixed-integer convex model. The exact mixed-integer nonlinear model is transformed into a mixed-integer quadratic convex model (MIQC) by approximating the product among vo...

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Autores:
Martin Serra, Federico
Montoya, Oscar Danilo
Alvarado-Barrios, Lázaro
Álvarez-Arroyo, Cesar
Chamorro, Harold R.
Tipo de recurso:
Fecha de publicación:
2021
Institución:
Universidad Tecnológica de Bolívar
Repositorio:
Repositorio Institucional UTB
Idioma:
eng
OAI Identifier:
oai:repositorio.utb.edu.co:20.500.12585/10384
Acceso en línea:
https://hdl.handle.net/20.500.12585/10384
https:// doi.org/10.3390/electronics10192339
Palabra clave:
Battery energy storage systems
Exact mathematical optimization
Global optimum finding
Mixed-integer quadratic programming
Power flow approximation
LEMB
Rights
openAccess
License
http://creativecommons.org/licenses/by-nc-nd/4.0/
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dc.title.spa.fl_str_mv On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulation
title On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulation
spellingShingle On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulation
Battery energy storage systems
Exact mathematical optimization
Global optimum finding
Mixed-integer quadratic programming
Power flow approximation
LEMB
title_short On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulation
title_full On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulation
title_fullStr On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulation
title_full_unstemmed On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulation
title_sort On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulation
dc.creator.fl_str_mv Martin Serra, Federico
Montoya, Oscar Danilo
Alvarado-Barrios, Lázaro
Álvarez-Arroyo, Cesar
Chamorro, Harold R.
dc.contributor.author.none.fl_str_mv Martin Serra, Federico
Montoya, Oscar Danilo
Alvarado-Barrios, Lázaro
Álvarez-Arroyo, Cesar
Chamorro, Harold R.
dc.subject.keywords.spa.fl_str_mv Battery energy storage systems
Exact mathematical optimization
Global optimum finding
Mixed-integer quadratic programming
Power flow approximation
topic Battery energy storage systems
Exact mathematical optimization
Global optimum finding
Mixed-integer quadratic programming
Power flow approximation
LEMB
dc.subject.armarc.none.fl_str_mv LEMB
description This paper deals with the problem of the optimal selection and location of batteries in DC distribution grids by proposing a new mixed-integer convex model. The exact mixed-integer nonlinear model is transformed into a mixed-integer quadratic convex model (MIQC) by approximating the product among voltages in the power balance equations as a hyperplane. The most important characteristic of our proposal is that the MIQC formulations ensure the global optimum reaching via branch & bound methods and quadratic programming since each combination of the binary variables generates a node with a convex optimization subproblem. The formulation of the objective function is associated with the minimization of the energy losses for a daily operation scenario considering high renewable energy penetration. Numerical simulations show the effectiveness of the proposed MIQC model to reach the global optimum of the optimization model when compared with the exact optimization model in a 21-node test feeder. All the validations are carried out in the GAMS optimization software.
publishDate 2021
dc.date.issued.none.fl_str_mv 2021-09-24
dc.date.accessioned.none.fl_str_mv 2022-01-17T20:50:10Z
dc.date.available.none.fl_str_mv 2022-01-17T20:50:10Z
dc.date.submitted.none.fl_str_mv 2022-01-07
dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/article
dc.type.hasVersion.spa.fl_str_mv info:eu-repo/semantics/restrictedAccess
dc.type.spa.spa.fl_str_mv http://purl.org/coar/resource_type/c_2df8fbb1
dc.identifier.citation.spa.fl_str_mv Serra, 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. Electronics 2021, 10, 2339. https:// doi.org/10.3390/electronics10192339
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12585/10384
dc.identifier.doi.none.fl_str_mv https:// doi.org/10.3390/electronics10192339
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 Serra, 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. Electronics 2021, 10, 2339. https:// doi.org/10.3390/electronics10192339
Universidad Tecnológica de Bolívar
Repositorio Universidad Tecnológica de Bolívar
url https://hdl.handle.net/20.500.12585/10384
https:// doi.org/10.3390/electronics10192339
dc.language.iso.spa.fl_str_mv eng
language eng
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dc.rights.accessRights.spa.fl_str_mv info:eu-repo/semantics/openAccess
dc.rights.cc.*.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.extent.none.fl_str_mv 15 páginas
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.place.spa.fl_str_mv Cartagena de Indias
dc.source.spa.fl_str_mv Electronics - vol. 10 n° 19
institution Universidad Tecnológica de Bolívar
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spelling Martin Serra, Federicoe9e063e5-cc5b-42c0-860e-d58b2bbd76b4Montoya, Oscar Danilo8a59ede1-6a4a-4d2e-abdc-d0afb14d4480Alvarado-Barrios, Lázaro32360024-18b0-46cd-8b05-2744e95b85f6Álvarez-Arroyo, Cesar0b539850-de92-4dde-9f25-224662e12e79Chamorro, Harold R.59e2dcd8-f603-4e1f-8459-da694d5a324d2022-01-17T20:50:10Z2022-01-17T20:50:10Z2021-09-242022-01-07Serra, 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. Electronics 2021, 10, 2339. https:// doi.org/10.3390/electronics10192339https://hdl.handle.net/20.500.12585/10384https:// doi.org/10.3390/electronics10192339Universidad Tecnológica de BolívarRepositorio Universidad Tecnológica de BolívarThis paper deals with the problem of the optimal selection and location of batteries in DC distribution grids by proposing a new mixed-integer convex model. The exact mixed-integer nonlinear model is transformed into a mixed-integer quadratic convex model (MIQC) by approximating the product among voltages in the power balance equations as a hyperplane. The most important characteristic of our proposal is that the MIQC formulations ensure the global optimum reaching via branch & bound methods and quadratic programming since each combination of the binary variables generates a node with a convex optimization subproblem. The formulation of the objective function is associated with the minimization of the energy losses for a daily operation scenario considering high renewable energy penetration. Numerical simulations show the effectiveness of the proposed MIQC model to reach the global optimum of the optimization model when compared with the exact optimization model in a 21-node test feeder. All the validations are carried out in the GAMS optimization software.15 páginasapplication/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 - vol. 10 n° 19On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulationinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/restrictedAccesshttp://purl.org/coar/resource_type/c_2df8fbb1Battery energy storage systemsExact mathematical optimizationGlobal optimum findingMixed-integer quadratic programmingPower flow approximationLEMBCartagena de IndiasGuerrero, J.; Blaabjerg, F.; Zhelev, T.; Hemmes, K.; Monmasson, E.; Jemei, S.; Comech, M.; Granadino, R.; Frau, J. Distributed Generation: Toward a New Energy Paradigm. IEEE Ind. Electron. Mag. 2010, 4, 52–64Saberi, H.; Nazaripouya, H.; Mehraeen, S. Implementation of a Stable Solar-Powered Microgrid Testbed for Remote Applications. Sustainability 2021, 13, 2707Akinyele, D.; Rayudu, R. Review of energy storage technologies for sustainable power networks. Sustain. Energy Technol. Assess. 2014, 8, 74–91.Pandey, G.; Singh, S.N.; Rajpurohit, B.S.; Gonzalez-Longatt, F.M. Smart DC Grid for Autonomous Zero Net Electric Energy of Cluster of Buildings. IFAC-PapersOnLine 2015, 48, 108–113Blaabjerg, F.; Yang, Y.; Ma, K.; Wang, X. Advanced Grid Integration of Renewables Enabled by Power Electronics Technology. In Nachhaltige Energieversorgung und Integration von Speichern; Springer Fachmedien: Wiesbaden, Germany, 2015; pp. 3–9Carrasco, J.; Franquelo, L.; Bialasiewicz, J.; Galvan, E.; PortilloGuisado, R.; Prats, M.; Leon, J.; Moreno-Alfonso, N. PowerElectronic Systems for the Grid Integration of Renewable Energy Sources: A Survey. IEEE Trans. Ind. Electron. 2006, 53, 1002–1016Wehbring, N.; Bleilevens, R.; Tepasse, B.; Priebe, J.; Moser, A. Strategies to convert AC into DC Medium Voltage Grids. In Proceedings of the 2018 53rd International Universities Power Engineering Conference (UPEC), Glasgow, UK, 4–7 September 2018Shaqsi, A.Z.A.; Sopian, K.; Al-Hinai, A. Review of energy storage services, applications, limitations, and benefits. Energy Rep. 2020, 6, 288–306Gonzalez-Longatt, F.; Sanchez, F.; Singh, S.N. On the topology for a smart direct current microgrid for a cluster of zero-net energy buildings. In Distributed Energy Resources in Microgrids; Elsevier: Amsterdam, The Netherlands, 2019; pp. 455–481Wei, Z.; Quan, Z.; Wu, J.; Li, Y.; Pou, J.; Zhong, H. Deep Deterministic Policy Gradient-DRL Enabled Multiphysics-Constrained Fast Charging of Lithium-Ion Battery. IEEE Trans. Ind. Electron. 2021, in pressMontoya, O.D.; Serra, F.M.; Angelo, C.H.D. On the Efficiency in Electrical Networks with AC and DC Operation Technologies: A Comparative Study at the Distribution Stage. Electronics 2020, 9, 1352Stieneker, M.; Doncker, R.W.D. Medium-voltage DC distribution grids in urban areas. In Proceedings of the 2016 IEEE 7th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), Vancouver, BC, Canada, 27–30 June 2016Soroudi, A. Power System Optimization Modeling in GAMS; Springer: Berlin/Heidelberg, Germany, 2017Zocca, A.; Zwart, B. Minimizing heat loss in DC networks using batteries. In Proceedings of the 2016 54th Annual Allerton Conference on Communication, Control, and Computing (Allerton), Monticello, IL, USA, 27–30 September 2016Valencia, A.; Hincapie, R.A.; Gallego, R.A. Optimal location, selection, and operation of battery energy storage systems and renewable distributed generation in medium–low voltage distribution networks. J. Energy Storage 2021, 34, 102158Montoya, O.D.; Gil-González, W.; Rivas-Trujillo, E. Optimal Location-Reallocation of Battery Energy Storage Systems in DC Microgrids. Energies 2020, 13, 2289Grisales-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. J. Energy Storage 2020, 29, 10148Grisales-Noreña, L.F.; Montoya, O.D.; Gil-González, W. Integration of energy storage systems in AC distribution networks: Optimal location, selecting, and operation approach based on genetic algorithms. J. Energy Storage 2019, 25, 100891.Vai, V.; Suk, S.; Lorm, R.; Chhlonh, C.; Eng, S.; Bun, L. Optimal Reconfiguration in Distribution Systems with Distributed Generations Based on Modified Sequential Switch Opening and Exchange. Appl. Sci. 2021, 11, 2146.Cardoso, G.; Stadler, M.; Siddiqui, A.; Marnay, C.; DeForest, N.; Barbosa-Póvoa, A.; Ferrão, P. Microgrid reliability modeling and battery scheduling using stochastic linear programming. Electr. Power Syst. Res. 2013, 103, 61–69.Zhang, Y.; Jia, Q.S. Operational Optimization for Microgrid of Buildings with Distributed Solar Power and Battery. Asian J. Control 2017, 19, 996–1008.Luna, A.C.; Diaz, N.L.; Graells, M.; Vasquez, J.C.; Guerrero, J.M. Mixed-Integer-Linear-Programming-Based Energy Management System for Hybrid PV-Wind-Battery Microgrids: Modeling, Design, and Experimental Verification. IEEE Trans. Power Electron. 2017, 32, 2769–2783Home-Ortiz, J.M.; Pourakbari-Kasmaei, M.; Lehtonen, M.; Mantovani, J.R.S. Optimal location-allocation of storage devices and renewable-based DG in distribution systems. J. Energy Storage 2019, 172, 11–21.Macedo, L.H.; Ortega-Vazquez, M.A.; Romero, R. Optimal operation of storage systems in distribution networks considering battery degradation. In Proceedings of the 2018 Simposio Brasileiro de Sistemas Eletricos (SBSE), Niteroi, Brazil, 12–16 May 2018Gil-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. Energies 2020, 13, 1703Gil-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. J. Energy Storage 2019, 21, 1–8.Mansuwan, K.; Jirapong, P.; Burana, S.; Thararak, P. Optimal Planning and Operation of Battery Energy Storage Systems in Smart Grids Using Improved Genetic Algorithm Based Intelligent Optimization Tool. In Proceedings of the 2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE), Phuket, Thailand, 24–26 October 2018.Magnor, D.; Sauer, D.U. Optimization of PV Battery Systems Using Genetic Algorithms. Energy Procedia 2016, 99, 332–340Boonluk, P.; Siritaratiwat, A.; Fuangfoo, P.; Khunkitti, S. Optimal Siting and Sizing of Battery Energy Storage Systems for Distribution Network of Distribution System Operators. Batteries 2020, 6, 56. [Ikeda, S.; Ooka, R. Metaheuristic optimization methods for a comprehensive operating schedule of battery, thermal energy storage, and heat source in a building energy system. Appl. Energy 2015, 151, 192–205Kai, H.; Yong-Fang, G.; Zhi-Gang, L.; Hsiung-Cheng, L.; Ling-Ling, L. Development of Accurate Lithium-Ion Battery Model Based on Adaptive Random Disturbance PSO Algorithm. Math. Probl. Eng. 2018, 2018, 1–13.Grisales, 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. IEEE Lat. Am. Trans. 2017, 15, 1084–1090Aaslid, P.; Geth, F.; Korpås, M.; Belsnes, M.M.; Fosso, O.B. Non-linear charge-based battery storage optimization model with bi-variate cubic spline constraints. J. Energy Storage 2020, 32, 101979Montoya, O.D.; Gil-González, W. Dynamic active and reactive power compensation in distribution networks with batteries: A day-ahead economic dispatch approach. Comput. Electr. Eng. 2020, 85, 106710Berglund, F.; Zaferanlouei, S.; Korpås, M.; Uhlen, K. Optimal Operation of Battery Storage for a Subscribed Capacity-Based Power Tariff Prosumer—A Norwegian Case Study. Energies 2019, 12, 4450Montoya, O.D.; Gil-González, W.; Grisales-Noreña, L.; Orozco-Henao, C.; Serra, F. Economic Dispatch of BESS and Renewable Generators in DC Microgrids Using Voltage-Dependent Load Models. Energies 2019, 12, 4494Wu, J.; Wei, Z.; Liu, K.; Quan, Z.; Li, Y. Battery-Involved Energy Management for Hybrid Electric Bus Based on Expert-Assistance Deep Deterministic Policy Gradient Algorithm. IEEE Trans. Veh. Technol. 2020, 69, 12786–12796Wu, J.; Wei, Z.; Li, W.; Wang, Y.; Li, Y.; Sauer, D.U. Battery Thermal- and Health-Constrained Energy Management for Hybrid Electric Bus Based on Soft Actor-Critic DRL Algorithm. IEEE Trans. Ind. Inform. 2021, 17, 3751–3761Benson, H.Y.; Sa ˘glam, Ü. Mixed-Integer Second-Order Cone Programming: A Survey. In Theory Driven by Influential Applications; INFORMS: Holland, MI, USA, 2013; pp. 13–36.Molina-Martin, F.; Montoya, O.D.; Grisales-Noreña, L.F.; Hernández, J.C.; Ramírez-Vanegas, C.A. Simultaneous Minimization of Energy Losses and Greenhouse Gas Emissions in AC Distribution Networks Using BESS. Electronics 2021, 10, 1002dos Santos, C.; Cavalheiro, E.; Bartmeyer, P.; Lyra, C. A MINLP Model to Optimize Battery Placement and Operation in Smart Grids. In Proceedings of the 2020 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT), Washington, DC, USA, 17–20 February 2020.Li, J.; Liu, F.; Wang, Z.; Low, S.H.; Mei, S. Optimal Power Flow in Stand-Alone DC Microgrids. IEEE Trans. Power Syst. 2018, 33, 5496–5506.Garces, A. Uniqueness of the power flow solutions in low voltage direct current grids. Electr. Power Syst. Res. 2017, 151, 149–153. Montoya, O.D. A convex OPF approximation for selecting the best candidate nodes for optimal location of power sources on DC resistive networks. Eng. Sci. Technol. Int. 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