Short-term hydro scheduling and hydro unit commitment of pumped storage hydropower plant with multiple variable-speed units

The increasing need for flexible resources in power systems with high renewable penetra- tion motivates exploring how variable-speed technology can enhance the flexibility and efficiency of Pumped Storage Hydropower (PSH) plants by allowing continuous power regulation in pumping mode. This thesis ad...

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Detalhes bibliográficos
Autor: Mena Rosell, Joan
Formato: tesis de maestría
Fecha de publicación:2025
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
OAI Identifier:oai:upcommons.upc.edu:2117/441725
Acesso em linha:https://hdl.handle.net/2117/441725
Access Level:acceso embargado
Palavra-chave:Nonlinear programming
Electric power
Water-power
Pumped storage hydropower (PSH), Variable-speed, short-term hydro scheduling (STHS), Hydro unit commitment (HUC), Nonlinear programming (NLP), Mixed-integer linear programming (MILP), Electricity markets
Programació no lineal
Energia elèctrica
Energia hidràulica
Àrees temàtiques de la UPC::Energies
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oai_identifier_str oai:upcommons.upc.edu:2117/441725
network_acronym_str ES
network_name_str España
repository_id_str
spelling Short-term hydro scheduling and hydro unit commitment of pumped storage hydropower plant with multiple variable-speed unitsMena Rosell, JoanNonlinear programmingElectric powerWater-powerPumped storage hydropower (PSH), Variable-speed, short-term hydro scheduling (STHS), Hydro unit commitment (HUC), Nonlinear programming (NLP), Mixed-integer linear programming (MILP), Electricity marketsProgramació no linealEnergia elèctricaEnergia hidràulicaÀrees temàtiques de la UPC::EnergiesThe increasing need for flexible resources in power systems with high renewable penetra- tion motivates exploring how variable-speed technology can enhance the flexibility and efficiency of Pumped Storage Hydropower (PSH) plants by allowing continuous power regulation in pumping mode. This thesis addresses the Short-Term Hydro Scheduling (STHS) and Hydro Unit Commitment (HUC) problems for a PSH plant with multiple variable-speed units. The proposed two-stage methodology includes a Nonlinear Pro- gramming (NLP) formulation for plant-level STHS, followed by a Mixed-Integer Linear Programming (MILP) HUC model. A key contribution is the exploitation of the fact that the presence of variable-speed units creates a continuous region of head and power combinations where the plant can operate at nearly constant and maximum overall efficiency. This justifies using an aggregated plant-based model in the STHS, allowing for the explicit treatment of nonlinear hydraulic characteristics while avoiding the complexity associated with binary variables. Crucially, this decomposition enables the inclusion of technical and operational features that would otherwise result in a large and computationally demanding single optimiza- tion problem. In particular, the HUC model introduces an innovative layer of operational decision-making by considering each unit’s operating mode (turbine or pump, fixed or variable-speed) as decision variables, capturing the trade-off between efficiency and flex- ibility when using full power converters (FPC). However, the decomposition introduces some loss of accuracy, especially in representing spinning reserves and participation in secondary regulation markets. The models are validated using fictitious data inspired by realistic PSH plants in Spain. The results confirm the validity of the methodology and its potential to enhance opera- tional flexibility in future grid scenarios.OutgoingUniversitat Politècnica de CatalunyaPérez González, Juan Jesús20252025-06-2620252025-09-1620302030-06-26master thesishttp://purl.org/coar/resource_type/c_bdccNAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/masterThesisapplication/pdfhttps://hdl.handle.net/2117/441725reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)embargoed accesshttp://purl.org/coar/access_right/c_f1cfinfo:eu-repo/semantics/embargoedAccessoai:upcommons.upc.edu:2117/4417252026-05-27T15:37:01Z
dc.title.none.fl_str_mv Short-term hydro scheduling and hydro unit commitment of pumped storage hydropower plant with multiple variable-speed units
title Short-term hydro scheduling and hydro unit commitment of pumped storage hydropower plant with multiple variable-speed units
spellingShingle Short-term hydro scheduling and hydro unit commitment of pumped storage hydropower plant with multiple variable-speed units
Mena Rosell, Joan
Nonlinear programming
Electric power
Water-power
Pumped storage hydropower (PSH), Variable-speed, short-term hydro scheduling (STHS), Hydro unit commitment (HUC), Nonlinear programming (NLP), Mixed-integer linear programming (MILP), Electricity markets
Programació no lineal
Energia elèctrica
Energia hidràulica
Àrees temàtiques de la UPC::Energies
title_short Short-term hydro scheduling and hydro unit commitment of pumped storage hydropower plant with multiple variable-speed units
title_full Short-term hydro scheduling and hydro unit commitment of pumped storage hydropower plant with multiple variable-speed units
title_fullStr Short-term hydro scheduling and hydro unit commitment of pumped storage hydropower plant with multiple variable-speed units
title_full_unstemmed Short-term hydro scheduling and hydro unit commitment of pumped storage hydropower plant with multiple variable-speed units
title_sort Short-term hydro scheduling and hydro unit commitment of pumped storage hydropower plant with multiple variable-speed units
dc.creator.none.fl_str_mv Mena Rosell, Joan
author Mena Rosell, Joan
author_facet Mena Rosell, Joan
author_role author
dc.contributor.none.fl_str_mv Pérez González, Juan Jesús
dc.subject.none.fl_str_mv Nonlinear programming
Electric power
Water-power
Pumped storage hydropower (PSH), Variable-speed, short-term hydro scheduling (STHS), Hydro unit commitment (HUC), Nonlinear programming (NLP), Mixed-integer linear programming (MILP), Electricity markets
Programació no lineal
Energia elèctrica
Energia hidràulica
Àrees temàtiques de la UPC::Energies
topic Nonlinear programming
Electric power
Water-power
Pumped storage hydropower (PSH), Variable-speed, short-term hydro scheduling (STHS), Hydro unit commitment (HUC), Nonlinear programming (NLP), Mixed-integer linear programming (MILP), Electricity markets
Programació no lineal
Energia elèctrica
Energia hidràulica
Àrees temàtiques de la UPC::Energies
description The increasing need for flexible resources in power systems with high renewable penetra- tion motivates exploring how variable-speed technology can enhance the flexibility and efficiency of Pumped Storage Hydropower (PSH) plants by allowing continuous power regulation in pumping mode. This thesis addresses the Short-Term Hydro Scheduling (STHS) and Hydro Unit Commitment (HUC) problems for a PSH plant with multiple variable-speed units. The proposed two-stage methodology includes a Nonlinear Pro- gramming (NLP) formulation for plant-level STHS, followed by a Mixed-Integer Linear Programming (MILP) HUC model. A key contribution is the exploitation of the fact that the presence of variable-speed units creates a continuous region of head and power combinations where the plant can operate at nearly constant and maximum overall efficiency. This justifies using an aggregated plant-based model in the STHS, allowing for the explicit treatment of nonlinear hydraulic characteristics while avoiding the complexity associated with binary variables. Crucially, this decomposition enables the inclusion of technical and operational features that would otherwise result in a large and computationally demanding single optimiza- tion problem. In particular, the HUC model introduces an innovative layer of operational decision-making by considering each unit’s operating mode (turbine or pump, fixed or variable-speed) as decision variables, capturing the trade-off between efficiency and flex- ibility when using full power converters (FPC). However, the decomposition introduces some loss of accuracy, especially in representing spinning reserves and participation in secondary regulation markets. The models are validated using fictitious data inspired by realistic PSH plants in Spain. The results confirm the validity of the methodology and its potential to enhance opera- tional flexibility in future grid scenarios.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-06-26
2025
2025-09-16
2030
2030-06-26
dc.type.none.fl_str_mv master thesis
http://purl.org/coar/resource_type/c_bdcc
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/441725
url https://hdl.handle.net/2117/441725
dc.language.none.fl_str_mv

language_invalid_str_mv
dc.rights.none.fl_str_mv embargoed access
http://purl.org/coar/access_right/c_f1cf
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv embargoed access
http://purl.org/coar/access_right/c_f1cf
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universitat Politècnica de Catalunya
publisher.none.fl_str_mv Universitat Politècnica de Catalunya
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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