Optimization of Scheduling for Hydro-thermal Power Generation and Transmission Including Pumped Storage Systems

Autores
Álvarez, Gonzalo; Marcovecchio, Marian G.; Aguirre, Pío A.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
This work presents a novel approach for solving the short-term scheduling of hydro-thermal power generation, including pumped storage systems and transmission constraints. The problem addressed is known as Security Constrained Unit Commitment (SCUC). Pumped Storage Units (PSUs) are important in electric systems during the off-peak and the peak demand periods, providing economic and technical benefits. Linear aproximations are applied to nonlinear equations of this kind of mathematical problems which are: fuel cost functions, generation-discharge curves of PSUs and transmission constraints modeled with Alternating Current power flow model. Thus, MILP models are presented for the problem addessed. To prove the efficiency of the proposed models, two systems with PSUs will be tested: a modified 6-bus and the IEEE 31-bus power system. Results show that the proposed MILP models allow: modeling the SCUC problem more realistically, obtaining feasible solutions within efficient computational times, and reaching production cost savings up to almost 15% compared to power systems that lack capacities to pumping water. Several indicators obtained from results are presented through graphs, as a tool for improving operation and maintenance of power systems. The analysis of these indicators and the graphic interpretation allow to identify and classify critical parts of systems as well as to make recommendations about future system improvements.
Sociedad Argentina de Informática e Investigación Operativa
Materia
Ciencias Informáticas
electric power systems
mixed integer linear programming
pumped hydro storage
security constrained unit commitment
transmission constraints
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/66451

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network_name_str SEDICI (UNLP)
spelling Optimization of Scheduling for Hydro-thermal Power Generation and Transmission Including Pumped Storage SystemsÁlvarez, GonzaloMarcovecchio, Marian G.Aguirre, Pío A.Ciencias Informáticaselectric power systemsmixed integer linear programmingpumped hydro storagesecurity constrained unit commitmenttransmission constraintsThis work presents a novel approach for solving the short-term scheduling of hydro-thermal power generation, including pumped storage systems and transmission constraints. The problem addressed is known as Security Constrained Unit Commitment (SCUC). Pumped Storage Units (PSUs) are important in electric systems during the off-peak and the peak demand periods, providing economic and technical benefits. Linear aproximations are applied to nonlinear equations of this kind of mathematical problems which are: fuel cost functions, generation-discharge curves of PSUs and transmission constraints modeled with Alternating Current power flow model. Thus, MILP models are presented for the problem addessed. To prove the efficiency of the proposed models, two systems with PSUs will be tested: a modified 6-bus and the IEEE 31-bus power system. Results show that the proposed MILP models allow: modeling the SCUC problem more realistically, obtaining feasible solutions within efficient computational times, and reaching production cost savings up to almost 15% compared to power systems that lack capacities to pumping water. Several indicators obtained from results are presented through graphs, as a tool for improving operation and maintenance of power systems. The analysis of these indicators and the graphic interpretation allow to identify and classify critical parts of systems as well as to make recommendations about future system improvements.Sociedad Argentina de Informática e Investigación Operativa2017-09info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionObjeto de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdf57-66http://sedici.unlp.edu.ar/handle/10915/66451enginfo:eu-repo/semantics/altIdentifier/url/http://www.clei2017-46jaiio.sadio.org.ar/sites/default/files/Mem/SIO/sio-17.pdfinfo:eu-repo/semantics/altIdentifier/issn/2451-7550info:eu-repo/semantics/reference/hdl/10915/135214info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-sa/4.0/Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:09:56Zoai:sedici.unlp.edu.ar:10915/66451Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:09:56.464SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Optimization of Scheduling for Hydro-thermal Power Generation and Transmission Including Pumped Storage Systems
title Optimization of Scheduling for Hydro-thermal Power Generation and Transmission Including Pumped Storage Systems
spellingShingle Optimization of Scheduling for Hydro-thermal Power Generation and Transmission Including Pumped Storage Systems
Álvarez, Gonzalo
Ciencias Informáticas
electric power systems
mixed integer linear programming
pumped hydro storage
security constrained unit commitment
transmission constraints
title_short Optimization of Scheduling for Hydro-thermal Power Generation and Transmission Including Pumped Storage Systems
title_full Optimization of Scheduling for Hydro-thermal Power Generation and Transmission Including Pumped Storage Systems
title_fullStr Optimization of Scheduling for Hydro-thermal Power Generation and Transmission Including Pumped Storage Systems
title_full_unstemmed Optimization of Scheduling for Hydro-thermal Power Generation and Transmission Including Pumped Storage Systems
title_sort Optimization of Scheduling for Hydro-thermal Power Generation and Transmission Including Pumped Storage Systems
dc.creator.none.fl_str_mv Álvarez, Gonzalo
Marcovecchio, Marian G.
Aguirre, Pío A.
author Álvarez, Gonzalo
author_facet Álvarez, Gonzalo
Marcovecchio, Marian G.
Aguirre, Pío A.
author_role author
author2 Marcovecchio, Marian G.
Aguirre, Pío A.
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Informáticas
electric power systems
mixed integer linear programming
pumped hydro storage
security constrained unit commitment
transmission constraints
topic Ciencias Informáticas
electric power systems
mixed integer linear programming
pumped hydro storage
security constrained unit commitment
transmission constraints
dc.description.none.fl_txt_mv This work presents a novel approach for solving the short-term scheduling of hydro-thermal power generation, including pumped storage systems and transmission constraints. The problem addressed is known as Security Constrained Unit Commitment (SCUC). Pumped Storage Units (PSUs) are important in electric systems during the off-peak and the peak demand periods, providing economic and technical benefits. Linear aproximations are applied to nonlinear equations of this kind of mathematical problems which are: fuel cost functions, generation-discharge curves of PSUs and transmission constraints modeled with Alternating Current power flow model. Thus, MILP models are presented for the problem addessed. To prove the efficiency of the proposed models, two systems with PSUs will be tested: a modified 6-bus and the IEEE 31-bus power system. Results show that the proposed MILP models allow: modeling the SCUC problem more realistically, obtaining feasible solutions within efficient computational times, and reaching production cost savings up to almost 15% compared to power systems that lack capacities to pumping water. Several indicators obtained from results are presented through graphs, as a tool for improving operation and maintenance of power systems. The analysis of these indicators and the graphic interpretation allow to identify and classify critical parts of systems as well as to make recommendations about future system improvements.
Sociedad Argentina de Informática e Investigación Operativa
description This work presents a novel approach for solving the short-term scheduling of hydro-thermal power generation, including pumped storage systems and transmission constraints. The problem addressed is known as Security Constrained Unit Commitment (SCUC). Pumped Storage Units (PSUs) are important in electric systems during the off-peak and the peak demand periods, providing economic and technical benefits. Linear aproximations are applied to nonlinear equations of this kind of mathematical problems which are: fuel cost functions, generation-discharge curves of PSUs and transmission constraints modeled with Alternating Current power flow model. Thus, MILP models are presented for the problem addessed. To prove the efficiency of the proposed models, two systems with PSUs will be tested: a modified 6-bus and the IEEE 31-bus power system. Results show that the proposed MILP models allow: modeling the SCUC problem more realistically, obtaining feasible solutions within efficient computational times, and reaching production cost savings up to almost 15% compared to power systems that lack capacities to pumping water. Several indicators obtained from results are presented through graphs, as a tool for improving operation and maintenance of power systems. The analysis of these indicators and the graphic interpretation allow to identify and classify critical parts of systems as well as to make recommendations about future system improvements.
publishDate 2017
dc.date.none.fl_str_mv 2017-09
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info:eu-repo/semantics/altIdentifier/issn/2451-7550
info:eu-repo/semantics/reference/hdl/10915/135214
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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