Now showing items 21-40 of 260

  • Assessment of the Wave Energy Potential for Combined Wind & Wave Exploitation and its Economic Benefits in the Electricity Market 

    De Keyser, Elias (Universitat Politècnica de Catalunya, 2017-09-13)
    Master thesis
    Restricted access - confidentiality agreement
  • Automatic method for reduction of load cases in structural fatigue calculations 

    Gómez Bella, Guillermo (Universitat Politècnica de Catalunya, 2016-01)
    Master thesis
    Open Access
    The present master’s thesis defines a methodology to reduce the computational complexity in stress fatigue calculation of structural components of wind turbines. The process is independent of the component analyzed and ...
  • Avaluació de recurs o disseny de sistemes micro-eòlics per a la electrificació rural 

    Ferrer Martí, Laia; Pastor Moreno, Rafael; Ranaboldo, Matteo; Capó Plaza, Gregori Miquel; Velo García, Enrique (UPC, 2009-07-31)
    Conference report
    Open Access
    Els sistemes d’electrificació basats en l’aprofitament de fonts d’energia renovables disponibles localment, han demostrat ser adequats per a proveir d’electricitat a comunitats aïllades de forma autònoma, i contribuir així ...
  • A wind farm control strategy for power reserve maximization 

    Siniscalchi Minna, Sara; Bianchi, Fernando Daniel; Prada Gil, Mikel de; Ocampo-Martínez, Carlos (Elsevier, 2019-02-01)
    Article
    Open Access
    Nowadays, in many countries wind energy is responsible for a significant part of the electricity generation. For this reason, Transmission System Operators (TSOs) are now demanding the wind power plants (WPPs) to contribute ...
  • A wind field downscaling strategy based on domain segmentation and transfer functions 

    Barcons, Jordi; Avila, Matias; Folch, Arnau (Wiley, 2018-02-06)
    Article
    Open Access
    This paper presents a novel methodology for mesoscale‐to‐microscale downscaling of near‐surface wind fields. The model chain consists on the Weather Research and Forecast mesoscale model and the Alya‐CFDWind microscale ...
  • A wind-lidar buoy for offshore wind measurements: first commissioning test-phase results 

    Gutiérrez Antuñano, Miguel Ángel; Tiana Alsina, Jordi; Rocadenbosch Burillo, Francisco; Sospedra, Joaquim; Aghabi, Rajai; González Marco, Daniel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference lecture
    Restricted access - publisher's policy
    This paper presents the development of a new commercial floating lidar system aimed to measure the wind resource and other environmental variables at candidate wind farm locations. This work describes this new lidar system ...
  • Base de dades global de la implementació i evolució de l'energia eòlica offshore 

    Obiols Serra, Josep Maria (Universitat Politècnica de Catalunya, 2017-09-20)
    Master thesis
    Open Access
    Al llarg d’aquest tesina s’ha dut a terme un estudi de l’estat de l’art de l’energia eòlica offshore mitjançant la creació d’una base de dades pròpia i la posterior manipulació d’aquesta per extreure’n informació ...
  • Behavior of pile group foundation for offshore wind generator 

    Lu, Wenjun; Zhang, Ga (Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica, 2015-06-02)
    Conference report
    Open Access
  • Behaviour of the doubly fed induction generator exposed to unsymmetrical voltage sags 

    Rolán Blanco, Alejandro; Córcoles López, Felipe; Pedra Durán, Joaquim (2012-09)
    Article
    Restricted access - publisher's policy
    This study analyses the dynamic behaviour of the doubly fed induction generator exposed to unsymmetrical voltage sags, providing insights into wind turbine fault ride-through capability. The sags are assumed to be caused ...
  • Centrifuge testing of offshore wind turbine foundations 

    Murali, Madhuri; Grajales, Francisco; Biscontin, Giovanna; Aubeny, Charles (Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica, 2015-06-02)
    Conference report
    Open Access
  • Chattering control design on a variable-speed horizontal-axis wind turbine 

    Acho Zuppa, Leonardo; Vidal Seguí, Yolanda; Zapateiro, Mauricio; Pozo Montero, Francesc; Luo, Ningsu (2011)
    Conference report
    Restricted access - publisher's policy
  • Combined heat and power design based on environmental and cost criteria 

    González, Arnau; Riba Ruiz, Jordi-Roger; Rius Carrasco, Antoni (2016-10-22)
    Article
    Restricted access - publisher's policy
    This paper proposes a hybrid renewable energy system (HRES) consisting of photovoltaic (PV), wind and forest wood biomass power for cogeneration, and applies a multi-objective optimization methodology to study the trade-offs ...
  • Comparison of various approaches to design wind-PV rural electrification projects in remote areas of developing countries 

    Domenech Léga, Bruno; Ferrer Martí, Laia; Pastor Moreno, Rafael (2018-01-01)
    Article
    Open Access
    Nowadays, around 1.1 billion people in rural and remote areas of developing countries remain without electricity. Stand-alone projects that combine the wind and photovoltaic generation technologies as well as microgrids ...
  • Computational analysis of fire dynamics inside a wind turbine 

    Rengel Darnaculleta, Francisco de Borja; Pastor Ferrer, Elsa; Hermida, Debora; Gómez, Eugenio; Molinelli, Luis; Planas Cuchi, Eulàlia (2017-06-15)
    Article
    Open Access
    Wind turbines are generally considered cost-effective, reliable and sustainable energy sources. Fires are not common in wind turbines, but a significant number of fires occur every year due to the large number of turbines ...
  • Condition monitoring analysis of a wind farm 

    Molas Gavira, Alvaro (Universitat Politècnica de Catalunya, 2016-06-08)
    Bachelor thesis
    Restricted access - confidentiality agreement
  • Condition monitoring of pump-turbines. New challenges 

    Egusquiza Estévez, Eduard; Valero Ferrando, Ma. del Carmen; Valentín Ruiz, David; Presas Batlló, Alexandre; Rodriguez Godoy, Cristian (2015-05)
    Article
    Open Access
    At present, pumped storage is the only system to store huge amounts of energy. The surplus of energy in the electrical grid is used for pumping water from a lower to a higher reservoir (pump operation). At peak hours or ...
  • Control design and simulation of an HVDC-connected Offshore Wind Power Plant 

    Heuveneers, Manon (Universitat Politècnica de Catalunya, 2018-06-21)
    Bachelor thesis
    Open Access
    Development of an incremental model on Simulink, using the PLECS tool, of the different elements composing the Offshore Wind Power Plant system, and simulation of various situations of unbalanced faults using positive and ...
  • Control methods for low voltage ride-through compliance in grid-connected NPC converter based wind power systems using predictive control 

    Alepuz Menéndez, Salvador; Busquets Monge, Sergio; Bordonau Farrerons, José; Cortés, Patricio; Kouro, Samir (2009-09)
    Conference lecture
    Open Access
    In presence of grid voltage dips, Low Voltage Ride-Through (LVRT) requirements demand the wind power plant to remain connected to the grid, helping the network to keep voltage and frequency stable. Neutral-Point-Clamped (NPC) ...
  • Control of an offshore wind power plant: emulated inertia 

    Pallas Sanmartín, Alba (Universitat Politècnica de Catalunya, 2016-10)
    Master thesis
    Open Access
    Undoubtedly, the energy sector is moving towards a more renewable and sustainable path. This means renewable energy will increase their penetration into the electric power grid. Wind Energy, in particular Offshore Wind ...
  • Control of DFIG-WT under unbalanced grid voltage conditions 

    Luna Alloza, Álvaro; Rodríguez Cortés, Pedro; Lima, Kleber; Córcoles López, Felipe; Watanabe, Edson H.; Teodorescu, R. (2009)
    Conference lecture
    Open Access
    The voltage oriented control in the synchronous reference frame (VOC-SRF) have been extensively used for controlling wind turbines based on doubly fed induction generators (DFIG-WTs) through the rotor side converter of ...