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Mostrando ítems 1-20 de 295
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A 2050 perspective on the role for carbon capture and storage in the European power system and industry sector
Holz, Franziska; Scherwath, Tim; Crespo del Granado, Pedro; Skar, Christian; Olmos Camacho, Luis; Ploussard, Quentin; Ramos Galán, Andrés; Herbst, Andrea (2021-12-01)Carbon Capture and Storage (CCS) might be a central technology to reach the decarbonisation goals of the European energy system. However, CCS deployment faces multiple economic, technological, and infrastructure challenges. ... -
A benders’ decomposition approach for optimizing the electric system of offshore wind farms
Lumbreras Sancho, Sara; Ramos Galán, Andrés (Norwegian University of Science Technology (NTNU), IEEE PE Norway Chapter (Trondheim, Noruega), 19/06/2011)Optimizing the electric design of an offshore wind farm is a key issue given cost and reliability considerations. The model presented here has been developed to efficiently optimize the electric layout of a wind farm taking ... -
A benefit-based methodology to rank transmission expansion projects
Báñez Chicharro, Fernando; Olmos Camacho, Luis; Ramos Galán, Andrés; Latorre Canteli, Jesús MaríaThis paper proposes a novel methodology to rank transmission expansion projects based on the benefits they provide to the system. The methodology developed estimates the benefits produced by investment projects, and is ... -
A binary differential evolution algorithm for airline revenue management: a case study
Yazdi, Amir Karvassi; Kaviani, Mohamad Amin; Hanne, Thomas; Ramos Galán, Andrés (2020-09-01)In the current highly competitive airline market, many companies have failed due to their low revenue rates. For this reason, many of them have to develop strategies to increase their revenue. In this study, we develop ... -
A complex-network approach to the generation of synthetic power transmission networks
Espejo González, Rafael; Lumbreras Sancho, Sara; Ramos Galán, Andrés (2019-09-01)The application of complex-network techniques to the analysis of power grids can provide interesting complementary insights into power studies such as the generation of synthetic power grids. Synthetic power grids are ... -
A decision support model for weekly operation of hydrothermal systems by stochastic nonlinear optimization
Ramos Galán, Andrés; Cerisola Lopez De Haro, Santiago; Latorre Canteli, Jesús María; Bellido Miranda, Rafael; Perea Sánchez, Alejandro; López Rodríguez, Elena (Springer (Berlín, Alemania), 2011-09-30) -
A finite Benders decomposition algorithm for mixed integer problems, resolution through parametric Branch and Bound
Cerisola Lopez De Haro, Santiago; Ramos Galán, Andrés -
A further step in decision support models for energy markets
Ramos Galán, Andrés; Adler, Ilan (2007-09-16) -
A generation operation planning model in deregulated electricity markets based on the complementarity problem
Rivier Abbad, Michel Luis; Ventosa Rodríguez, Mariano; Ramos Galán, Andrés; Martínez Córcoles, Francisco; Chiarri Toscano, Ángel (Kluwer Academic Publishers (Boston, Estados Unidos de América), 2001-01-01) -
A long-term prospective for the Spanish electricity system
Fernandes, Camila; Frías Marín, Pablo; Olmos Camacho, Luis; Ramos Galán, Andrés; Gómez San Román, Tomás (Institute of Electrical and Electronics Engineers (Madrid, España), 2010-06-23)The main objective of this paper is to present the preliminary results obtained within the SUSPLAN EU Project2, regarding the integration of increasing levels of Renewable Energy Sources (RES) into the future Spanish energy ... -
A methodological approach for assessing flexibility and capacity value in renewable-dominated power systems: a Spanish case study in 2030
Huclin, Sébastien; Ramos Galán, Andrés; Chaves Ávila, José Pablo; Matanza Domingo, Javier; González-Eguino, Mikel (2023-12-15)Maintaining the security of supply is one of the challenges that system operators face. Variability and uncertainty increase due to the penetration of variable renewable energy sources such as solar and wind, while flexible ... -
A nonlinear programming approach to optimal static generation expansion planning
Ramos Galán, Andrés; Pérez Arriaga, José Ignacio; Bogas Gálvez, Juan (1989-08-01) -
A nonlinear programming approach to optimal static generation expansion planning
Ramos Galán, Andrés; Pérez Arriaga, José Ignacio; Bogas Gálvez, Juan (1989-08-01)It is shown how a standard nonlinear programming approach can be applied to solve a sophisticated version of the static optimal mix problem in generation planning. The model presented includes technical minima of thermal ... -
A novel power grid reduction technique for a transmission expansion planning problem using a weighted signed graph model
Ploussard, Quentin; Olmos Camacho, Luis; Ramos Galán, Andrés; Söder, LennartIn Power System, the aim of Transmission Expansion Planning (TEP) studies is to determine which, where, and when new transmission lines should be constructed at the minimum total cost. The large-scale network (around 10 ... -
A progressive contingency incorporation approach for stochastic optimization problems
Lumbreras Sancho, Sara; Ramos Galán, Andrés; Cerisola Lopez De Haro, Santiago (2013-05-01)Reliability is a key objective in many optimal design problems. Very often this criterion is incorporated into stochastic optimization problems by introducing contingency evaluation scenarios. This results in a special ... -
A search space reduction method for transmission expansion planning using an iterative refinement of the DC Load Flow model
Ploussard, Quentin; Olmos Camacho, Luis; Ramos Galán, Andrés (2020-01-01)This paper provides a new methodology to compute a reduced but efficient set of candidate lines in a transmission expansion planning (TEP) context. Considering this reduced set of candidate lines should lead to similar ... -
A short term uncertainty reduction technique for transmission expansion planning based on line benefits
Ploussard, Quentin; Olmos Camacho, Luis; Ramos Galán, AndrésThis article provides a novel technique to represent in a reduced, or compact, way short term uncertainty in Transmission Expansion Planning (TEP). Uncertainty reduction is handled by means of "snapshot selection". Instead ... -
A tight MIP formulation of the unit commitment problem with start-up and shut-down constraints
Gentile, C.; Morales España, German Andres; Ramos Galán, Andrés (2017-03-01)This paper provides the convex hull description of the single thermal Unit Commitment (UC) problem with the following basic operating constraints: (1) generation limits, (2) start-up and shut-down capabilities, and (3) ... -
A tight MIP formulation of the unit commitment problem with start-up and shut-down constraints
Gentile, C.; Morales España, German Andres; Ramos Galán, Andrés -
A two-stage stochastic MILP model for generation and transmission expansion planning with high shares of renewables
Micheli, Giovanni; Vespucci, Maria Teresa; Stabile, Marco; Puglisi, Cinzia; Ramos Galán, Andrés (2023-08-01)This paper is concerned with the generation and transmission expansion planning of large-scale energy systems with high penetration of renewable energy sources. Since expansion plans are usually provided for a long-term ...