Now showing items 1-20 of 21

  • Analysis and dynamical modeling of a piston valve for a wave energy converter 

    Cruz Gispert, Albert (Universitat Politècnica de Catalunya / Rijksuniversiteit Groningen, 2014)
    Master thesis (pre-Bologna period)
    Open Access
    The Ocean Grazer, a novel wave energy converter, has been proposed by the University of Groningen. The system can collect and store multiple forms of ocean energy, with a pistontype hydraulic pump as its core technology. In ...
  • Avaluació eficient dels residus de productes absorbents d’higiene personal a través d'una nova combinació d'un reactor autoclau i la gasificació 

    Jover Vilaró, Pol (Universitat Politècnica de Catalunya, 2015-01)
    Bachelor thesis
    Restricted access - author's decision
    Covenantee:  Fater
    El present Treball de Final de Grau s’ha realitzat durant l’estada a l’empresa Fater S.p.A. a la ciutat de Pescara, Itàlia. Aquest treball forma part d’un projecte europeu anomenat VIRGIN (Highly-efficient ValorIsation of ...
  • Constant common mode voltage modulation strategy for the FB10 power converter 

    Rodríguez Cortés, Pedro; Muñoz Aguilar, Raúl Santiago; Vázquez Guzmán, Gerardo; Candela García, José Ignacio; Teodorescu, Remus (IEEE, 2011)
    Conference report
    Restricted access - publisher's policy
    In this paper a modulation strategy based on the classical space vector modulation is applied to the FB10 converter, a new converter topology for PV applications. Firstly, the FB10 converter is presented and the ...
  • Control-oriented modeling and experimental validation of a PEMFC generation system 

    Kunusch, Cristian; Puleston, Paul; Mayosky, Miguel Angel; Husar, Attila Peter (2011-09)
    Article
    Restricted access - publisher's policy
    An experimentally validated control-oriented model that reproduces the most typical features of a laboratory proton exchange membrane fuel cell generation system, is presented in this paper. The proposed representation is ...
  • Design of a global maximum power point tracking (GMPPT) for PV array based on precise PV shadow modem 

    García-Gutiérrez, Luis; Bressan, Michael; Jiménez, Fernando; Heras Jiménez, Salvador Augusto de las; Alonso, Corinne (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference lecture
    Open Access
    This paper presents the modeling of a photovoltaic system under complex shading conditions. The approach integrates a complete PV array with each cell modeled separately including shadow coefficients depending on a ...
  • Design of a mooring system for a Wave Energy Converter 

    Foved Johe, Eduard (Universitat Politècnica de Catalunya / Politecnico di Torino, 2014)
    Bachelor thesis
    Open Access
    In the current scenario of exhaustion of fossil fuels, new forms of alternative energy must gain ground. Taking advantage of the great amount of water, the element that gives name to our planet (blue planet); this thesis ...
  • Design of an impedance source converter for high-performance PV power system applications 

    Izquierdo Gómez, Pere (Universitat Politècnica de Catalunya, 2018-07-18)
    Bachelor thesis
    Open Access
    Covenantee:  Aalborg universitet
    This project describes the principles of impedance-source/quasi-impedancesource inverters, which have the main particularity of being able to operate as voltage-boost inverters. Therefore, the appropriate circuit ...
  • Enhanced power device configuration and operation of a grid-connected active-neutralpoint- clamped inverter for wind energy conversion systems 

    Caballero Diaz, Luis; Busquets Monge, Sergio; Ratés Palau, Sergi (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference lecture
    Restricted access - publisher's policy
    The power ratings of wind energy conversion systems (WECS) are increasing considerably due to high demand on wind power. Thus, multilevel power converters are becoming an interesting solution in the largest WECS, especially ...
  • Estudi, optimització i us aplicat de l’energia elèctrica generada per un sistema mecànic d’excitació d’elements 

    Prada Corvinos, Abel (Universitat Politècnica de Catalunya, 2018-06-10)
    Bachelor thesis
    Open Access
    Aquest projecte pretén estudiar, calcular i dissenyar un sistema eficient energèticament, i també econòmicament d’un sistema captador d’energia mecànica que es transforma mitjançant un conjunt de piezoelèctrics en energia ...
  • Generación de electricidad con piezoeléctricos para iluminar un panel publicitario de LEDs 

    Garcia Ostos, Miquel Angel (Universitat Politècnica de Catalunya, 2010-03)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    En este proyecto se juntan todos los conceptos adquiridos en esta carrera. Se encontrarán aspectos de Materiales, Electrónica, Administración de Empresas y Proyectos entre otros. Lo que leerán a continuación es el diseño, ...
  • Hydrokinetic energy conversion using compliant surfaces 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2019-05-21)
    Article
    Restricted access - publisher's policy
    In this work, consideration is given for a novel technology based on the use of compliant surfaces (membranes) for hydrokinetic energy conversion (HEC) from residual waters where the use of traditional turbines is either ...
  • Implementation of the differential protection for MVDC distribution systems using real-time simulation and hardware-in-the-loop 

    Monadi, Mehdi; Koch-Ciobotaru, Cosmin; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Open Access
    Development of Medium Voltage DC (MVDC) distribution systems require using proper protection schemes whereas due to the behavior of dc fault current, the conventional fault detection methods for ac distribution systems ...
  • IMprove the thermal models in order to take into acount radiation and conduction and the influence of the temperature on the parameter variations 

    Serra Cervera, Alec (Universitat Politècnica de Catalunya, 2011)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    This project has as objective to improve the thermal model of Majid Souley thesis based on Multi-coil heating technology, specifically, understand what is the result of changing the value of the coefficient of thermal ...
  • Modelado y diseño de un sistema sostenible para el suministro de energía en un punto aislado en alta mar 

    Segarra Boladeras, Roger (Universitat Politècnica de Catalunya, 2015-01-29)
    Bachelor thesis
    Restricted access - author's decision
    Hoy en día existen infinidad de sistemas compuestos por componentes eléctricos o electrónicos que se utilizan en el medio marino. Algunos de estos sistemas solo tienen aplicación lucrativa; sin embargo, muchos otros, tales ...
  • Nonlinear control design for wave energy converter 

    Galván García, Bruno (Universitat Politècnica de Catalunya / University of Groningen, 2013)
    Bachelor thesis
    Open Access
    In this thesis, we study the optimization of a single-piston pump system for use in a new wave energy converter by using a feedback mechanism. The first part of the thesis is dedicated to the optimal determination of ...
  • Overview of recent grid codes for wind power integration 

    Altin, M.; Goksu, O.; Teodorescu, Remus; Rodríguez Cortés, Pedro; Bak-Jensen, Birgitte; Helle, L. (2010)
    Conference report
    Open Access
    As wind power penetration level increases, power system operators are challenged by the penetration impacts to maintain reliability and stability of power system. Therefore, grid codes are being published and continuously ...
  • Sliding Mode Strategy for PEM Fuel Cells Stacks Breathing Control Using a Super-Twisting Algorithm 

    Kunusch, Cristian; Puleston, Paul; Mayosky, M A; Riera, Jordi (Riera Colomer) (2009-01)
    Article
    Open Access
    A second-order sliding mode strategy to control the breathing subsystem of a polymer electrolyte membrane fuel cell stack for transportation applications is presented. The controller is developed from a design model of ...
  • Slingshot resonance for ocean wave energy conversion 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (Springer, 2019-06-13)
    Article
    Restricted access - publisher's policy
    The slingshot effect and its application to converting ocean wave energy are discussed. It is shown that, owing to the large inertia transported by ocean waves and their periodicity, the slingshot effect can result in the ...
  • Solar vanadium redox-flow battery powered by thin-film silicon photovoltaics for efficient photoelectrochemical energy storage 

    Urbain, Félix; Murcia López, Sebastián; Nembhard, Nicole; Vázquez Galván, Javier; Flox Donoso, Cristina; Smirnov, Vladimir; Welter, Katharina; Andreu, Teresa; Finger, Friedhelm; Morante Lleonart, Joan Ramon (Institute of Physics (IOP), 2018-11-15)
    Article
    Open Access
    Solar-powered vanadium redox-flow batteries (VRFB) have emerged as an attractive method for large-scale and efficient energy storage and conversion. However, due to the stringent charging voltage requirements of vanadium-based ...
  • Storage of thermal energy for reuse, urban agriculture & provide LNG vehicles 

    Bernà i Mascort, Sergi (Universitat Politècnica de Catalunya / Rijksuniversiteit Groningen, 2013)
    Bachelor thesis
    Open Access
    Covenantee:  Rijksuniversiteit te Groningen
    Osaka Gas Co., Ltd., was asking for a novel thermal storage technique, or material. This should meet the requirements of: Having a thermal storage density of 400 KJ/L, and be usable in the temperature range from 0 to 150 ...