Now showing items 1-20 of 43

    • Adaptación de dos erctificadores de 6 pulsos en un rectificador de 12 pulsos y el estudio de su mantenimiento 

      Cosculluela Sanchez, Antoni (Universitat Politècnica de Catalunya, 2019-09-29)
      Bachelor thesis
      Restricted access - author's decision
      En este trabajo se realizará el diseño de una herramienta que permite el funcionamiento de dos Rectificadores de 6 pulsos pudiendo interconectarlos entre sí para crear un Rectificador de 12 pulsos y así realizar ensayos ...
    • 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 ...
    • Análisis de comportamiento e interacción de un convertidor fotovoltaico con la red 

      González Rodríguez, Francesc (Universitat Politècnica de Catalunya, 2020-07-09)
      Master thesis
      Open Access
      En un periodo muy corto de Historia, la humanidad ha pasado de vivir en un mundo en el que no se tenían límites de contaminación y sostenibilidad a vivir en uno en el que se han forzado grandes restricciones para no ...
    • 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 ...
    • Common-mode voltage elimination in multilevel power inverter-based motor drive applications 

      Robles, Endika; Fernandez, Markel; Zaragoza Bertomeu, Jordi; Aretxabaleta, Iker; de Alegria, Iñigo Martinez; Andreu Larrañaga, Jon (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Article
      Open Access
      The industry and academia are focusing their efforts on finding more efficient and reliable electrical machines and motor drives. However, many of the motors driven by pulse-width modulated converters face the recurring ...
    • Common-mode voltage mitigation in multiphase electric motor drive systems 

      Robles, Endika; Fernandez, Markel; Andreu Larrañaga, Jon; Ibarra Basabe, Edorta; Zaragoza Bertomeu, Jordi; Ugalde, Unai (2022-04)
      Article
      Open Access
      Common-mode voltage (CMV) produces serious reliability and electromagnetic interference (EMI) issues in modern pulse-width modulated (PWM) electric drives. Such issues will become more prominent in the near future, as ...
    • 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 ...
    • Constant common-mode voltage strategies using sigma-delta modulators in five-phase VSI 

      Acosta Cambranis, Fernando Geovany; Zaragoza Bertomeu, Jordi; Berbel Artal, Néstor; Capellá Frau, Gabriel José; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2022-05-03)
      Article
      Open Access
      This paper proposes and studies different sigma-delta () modulation strategies for obtaining a constant common-mode voltage (CMV) by eliminating the CMV level transitions in a five-phase voltage source inverter (VSI). These ...
    • 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 ...
    • Disseny i implementació d’un convertidor DC/DC de potència per a una moto de competició 

      Montalbán Martínez, Oscar (Universitat Politècnica de Catalunya, 2020-07-21)
      Bachelor thesis
      Restricted access - author's decision
      En els últims anys, a causa de l’augment en els nivells de contaminació ambiental, la societat és més conscient que mai de la importància d’utilitzar mitjans alternatius al vehicle de combustió per desplaçar-se de forma ...
    • Effect of the annealing atmosphere on crystal phase and thermoelectric properties of copper sulfide 

      Li, Mengyao; Liu, Yu; Zhang, Yu; Han, Xu; Zhang, Ting; Zuo, Yong; Xie, Chenyang; Arbiol, Jordi; Llorca Piqué, Jordi; Liu, Junfeng; Cabot, Andreu (American Chemical Society, 2021-03-01)
      Article
      Open Access
      Cu2–xS has become one of the most promising thermoelectric materials for application in the middle-high temperature range. Its advantages include the abundance, low cost, and safety of its elements and a high performance ...
    • Effect of the heat dissipation system on hard-switching GaN-based power converters for energy conversion 

      Lumbreras Carrasco, David; Vilella Vega, Manel; Zaragoza Bertomeu, Jordi; Berbel Artal, Néstor; Jordà, Josep; Collado, Alfonso (2021-10-02)
      Article
      Open Access
      The design of a cooling system is critical in power converters based on wide-bandgap (WBG) semiconductors. The use of gallium nitride enhancement-mode high-electron-mobility transistors (GaN e-HEMTs) is particularly ...
    • Electric power generation from combustion in porous media 

      Bubnovich Ivanovice, Valeri; Pedro San Martin, Pedro; Henriquez Vargas, Luis; Orlovskaya, Nina; González Rojas, Hernan Alberto (2016-09-12)
      Article
      Restricted access - publisher's policy
      Combustion of lean air/fuel mixtures in an inert porous medium provides an efficient way to convert chemical energy of hydrocarbons into thermal energy. The porous medium effectively redistributes the heat allowing the ...
    • Electromechanical design of synchronous power controller in grid integration of renewable power converters to support dynamic stability 

      Abdollahi, Mostafa; Candela García, José Ignacio; Tarraso Martínez, Andrés; Atef Abbas Elsaharty, Mohamed; Rakhshani, Elyas (2021-04-10)
      Article
      Open Access
      Nowadays, modern power converters installed in renewable power plants can provide flexible electromechanical characteristics that rely on the developed control technologies such as Synchronous Power Controller (SPC). Since ...
    • Estudi d'aprofitament de la biomassa per a produir energia amb un motor Stirling 

      Rodon Mas, Xavier (Universitat Politècnica de Catalunya, 2016-04)
      Master thesis
      Restricted access - author's decision
    • 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 ...
    • Estudio del diseño de un inversor para cocinas de inducción utilizando un solo interruptor de GaN 

      Bravo Guamán, Marco Fernando (Universitat Politècnica de Catalunya, 2019-06)
      Master thesis
      Open Access
      En este trabajo se analiza y diseña un prototipo de una cocina de inducción formado por un inversor cuasi resonante ZVS basado en el transistor de potencia GaN, con el objetivo de poder trabajar con recipientes de diferentes ...