Now showing items 1-20 of 170

  • Active and reactive power strategies with peak current limitation for distributed generation inverters during unbalanced grid faults 

    Camacho Santiago, Antonio; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Borrell Sanz, Angel; García de Vicuña Muñoz de la Nava, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2015-03-01)
    Article
    Open Access
    Distributed generation inverters have become a key element to improve grid efficiency and reliability, particularly during grid faults. Under these severe perturbations, inverter-based power sources should accomplish ...
  • Active current control in wind power plants during grid faults 

    Martínez Navarro, Jorge; Kjaer, P. C.; Rodríguez Cortés, Pedro; Teodorescu, Remus (2010-11)
    Article
    Restricted access - publisher's policy
    Modern wind power plants are required and designed to ride through faults in electrical networks, subject to fault clearing. Wind turbine fault current contribution is required from most countries with a high amount of ...
  • Analisis con FAST y Aerodyn del funcionamiento de un mini-aerogenerador para suministro de energia electrica en areas remotas 

    Sanchez Llopart, Carlos (Universitat Politècnica de Catalunya, 2011-07-14)
    Bachelor thesis
    Open Access
    La energía eólica es una realidad en auge. Los grandes parques eólicos están presentes ya en muchos países y su futuro próximo augura un crecimiento imparable. La situación es radicalmente distinta en los países en vías ...
  • Análisis de viabilidad de una turbina de eje vertical en un domicilio particular 

    Molina Blanco, Raul (Universitat Politècnica de Catalunya, 2019-01-17)
    Bachelor thesis
    Open Access
    Disseny d'una turbina vertical per recaptar energia de l'aire i del circuit per poder emmagatzemar-la per al seu ús.
  • Analysis and operation of a wind turbine with a multiphase permanent magnet synchronous generator 

    Jover Almirall, Pablo (Universitat Politècnica de Catalunya, 2015-07)
    Bachelor thesis
    Open Access
    This project is based on the modeling and controlling of an offshore wind turbine with a PMSG (Permanent Magnet Synchronous Generator) topology. This topology is gaining relevance nowadays in offshore wind turbines due ...
  • Analysis of support structure of wind turbine tower 

    Mediano Valiente, Begoña; Domínguez García, José Luis; García Planas, María Isabel (2013)
    Conference report
    Open Access
    Wind turbines are being used to generate electricity as an alternative energy source to conventional fossil fu- els, and it is well known that wind towers must to sus- tain continuous vibration forces throughout their ...
  • Analysis of the eolic harnessing of mountain and valley winds in several places of Pyrenees. 

    Viñallonga Pijoan, Jordi (Universitat Politècnica de Catalunya, 2011-07-25)
    Bachelor thesis
    Open Access
    Sota el context actual de canvi climàtic que està patint el nostre país, en aquest escrit es proposa una possible nova font d‟energia alternativa a les muntanyes: l‟aprofitament dels corrents tèrmics. Els cims de les ...
  • An approach to the performance-oriented model of variable-speed wind turbines 

    Rolán Blanco, Alejandro; Luna Alloza, Álvaro; Rocabert Delgado, Joan; Aguilar Galván, Daniel; Vázquez Guzmán, Gerardo (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference lecture
    Open Access
    The aim of this work is to give an approach to the Performance-Oriented Model of Variable-Speed Wind turbines (VSWTs) equipped with permanent magnet synchronous generator (PMSG), and compare it to the component-oriented model. ...
  • An assessment of the sea breeze energy potential using small wind turbines in peri-urban coastal areas 

    Mazón Bueso, Jordi; Rojas Gregorio, José Ignacio; Jou, Jordi; Valle, Aaron; Olmeda, David; Sanchez, Carlos (2015-01-29)
    Article
    Open Access
    From wind speed data recorded hourly at 2 m high during 18 years (1993-2010) in the Llobregat Delta (15 km south of Barcelona city; northeast of the Iberian Peninsula), wind speed distributions at 10 m high were computed ...
  • A simplified model for wind turbine based on doubly fed induction generator 

    Lima, F. K. A.; Watanabe, Edson H.; Rodríguez Cortés, Pedro; Luna Alloza, Álvaro (2011)
    Conference report
    Restricted access - publisher's policy
    Improving the Fault Ride Through capability (FRT) of Doubly Fed Induction Generators (DFIG) in wind power applications is a very important challenge for wind power industry. The mathematical models of such generators ...
  • A single leg switched PWM method for three-phase H-bridge voltage source converters 

    Senturk, Osman S.; Munk-Nielsen, Stig; Teodorescu, Remus; Helle, Lars; Rodríguez Cortés, Pedro (2009)
    Conference lecture
    Open Access
    This paper proposes a single leg switched or a hybrid PWM (HPWM) method for three-phase three-level HBridge Voltage Source Converters (3L-HB-VSCs). By means of the proposed modulation, a 3L-HB-VSC can generate the ...
  • 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 turbine blade damage detection system based on data analysis: an academic example on the use of histograms 

    Acho Zuppa, Leonardo; Buenestado Caballero, Pablo (2018-04-11)
    Article
    Open Access
    The main objective of this paper is to introduce an academic example on the use of histograms to develop a wind turbine blade fault (or damage) detection system. This approach merely uses data analysis obtained from a ...
  • A wind turbine blade damage detection system based on data analysis: an academic xample on the use of histograms 

    Acho Zuppa, Leonardo; Buenestado Caballero, Pablo (2018)
    Conference report
    Restricted access - publisher's policy
    The main objective of this paper is to introduce an academic example on the use of histograms to develop a wind turbine blade fault (or damage) detection system. This approach merely uses data analysis obtained from a ...
  • 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 ...
  • Cálculo y diseño de una turbina Savonius para alimentar un sensor sísmico autónomo de baja potencia mediante un generador de piezoeléctricos de excitación por vibración : aplicación en la isla de Tenerife 

    Tejero Trujillo, Manuel (Universitat Politècnica de Catalunya, 2014-12-19)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    El Centro de Desarrollo en Sistemas de Adquisición Remota y Tratamiento de la Información (SARTI) está desarrollando un sensor sísmico que se situará en la Isla de Tenerife, para el cual se ha propuesto una alimentación ...
  • CFD study of thick flatback airfoils using OpenFOAM 

    Milián Sanz, José María (Universitat Politècnica de Catalunya / Denmarks Tekniske Universitet (Technical University of Denmark), 2010)
    Master thesis (pre-Bologna period)
    Open Access
    New airfoil designs are created in order to improve both the structural and aerodynamic properties of a wind turbine blade, one example of these are flatback airfoils. Furthermore, a new CFD programme exists in order to ...
  • Chopper controlled resistors in VSC-HVDC transmission for WPP with full-scale converters 

    Chaudhary, S. K.; Teodorescu, Remus; Rodríguez Cortés, Pedro; Kjaer, P. C. (2009)
    Conference report
    Restricted access - publisher's policy
    Large and distant offshore wind power plants can be efficiently connected to the onshore power grid network using VSC-HVDC (Voltage Source Converter based HVDC) transmission. Chopper controlled resistors can be used to ...
  • Comparative levelized cost of energy analysis 

    Ebenhoch, Raphael; Matha, Denis; Marathe, Sheetal; Cortes Muñoz, Paloma; Molins i Borrell, Climent (2015)
    Conference report
    Open Access
    To estimate the economic feasibility of floating and bottom-fixed substructures at various offshore sites, a generally applicable calculation tool has been developed. With this 'LCOE calculation tool' it is possible to ...
  • 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 ...