Now showing items 1-18 of 18

    • A Novel commutation sequence for the three-level active neutral-point-clamped inverter to aid in splitting switching and conduction losses among the semiconductor devices 

      Caballero Diaz, Luis; Busquets Monge, Sergio; Ratés Palau, Sergi (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      The three-level neutral-point-clamped (3L-NPC) topology is competitive in the large wind energy conversion systems (WECS) thanks to its simple implementation and proper performance compared to other topologies. However, ...
    • Acumulador mecànic d'energia per interruptor-seccionador d'alta ponència 

      Sánchez Papaceit, Albert (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Restricted access - author's decision
      La present memòria recull els primers passos del procés de disseny d’un mecanisme acumulador d’energia aplicat a un interruptor elèctric industrial polivalent d’alta potència. La finalitat d’aquest disseny és trobar una ...
    • Caracterisation thermique et electrique d'un hacheur abaisseur 

      Alonso Llovet, Francisco Javier (Universitat Politècnica de Catalunya / École Centrale Lyon, 2014)
      Master thesis (pre-Bologna period)
      Open Access
      Le sujet de ce stage concerne à la caractérisation d’un convertisseur buck de forte puissance, utilisé dans des convertisseurs statiques destinés aux tramways CITADIS (Alstom). Le rôle de ce convertisseur est d’adapter ...
    • Clustered PV inverters in LV networks: an overview of impacts and comparison of voltage control strategies 

      Demirok, Erhan; Sera, Dezso; Teodorescu, Remus; Rodríguez Cortés, Pedro (2009)
      Conference lecture
      Open Access
      High penetration of photovoltaic (PV) inverters in low voltage (LV) distribution network challenges the voltage stability due to interaction between multiple inverters and grid. As the main objective is to provide more ...
    • Diseño de una mesa con enchufes incorporados 

      Castillo Betorz, Juan (Universitat Politècnica de Catalunya / Escola Tècnica Superior d’Enginyeria Industrial de Barcelona, 2009-03)
      Master thesis (pre-Bologna period)
      Open Access
      Necesidades tecnológicas en la docencia universitaria requieren un sistema para proporcionar electricidad a partir de enchufes en los escritorios del alumnado. Este sistema debe proporcionar una gran movilidad de las ...
    • Diseño y desarrollo de un sistema controlador de calidad para interruptores manejados por usuario para el sector del automóvil 

      Pérez Aguilar, Oscar (Universitat Politècnica de Catalunya, 2014-10-28)
      Bachelor thesis
      Restricted access - author's decision
    • Disseny d’una font commutada amb correcció del factor de potència 

      Guardiola Escrihuela, Albert (Universitat Politècnica de Catalunya, 2010-10)
      Master thesis (pre-Bologna period)
      Open Access
      A continuació es detallen els objectius concrets del present treball. -Explicar breument els antecedents històrics de la font commutada i el concepte de correcció del factor de potència. Intentar comprendre perquè a ...
    • Disseny i implementació d’un circuit de test de dispositius semiconductors de potència 

      Andreu Ramis, Xavier (Universitat Politècnica de Catalunya, 2010-06)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      El present projecte final de carrera s'emmarca dins de l’àmbit de dispositius semiconductors de potència emprats com a interruptors. El camp d’aplicació dels interruptors semiconductors de potència és ampli, sent-ne un ...
    • Distributed reactive power control methods to avoid voltage rise in grid-connected photovoltaic power generation systems 

      Martí Colom, Pau; Velasco García, Manel; Fuertes Armengol, José Mª; Camacho Santiago, Antonio; Miret Tomàs, Jaume; Castilla Fernández, Miguel (2013)
      Conference report
      Restricted access - publisher's policy
      A high density of grid-connected photovoltaic (PV) power generation systems is expected to occur in urban areas. The connection of distributed generation (DG) may cause serious problems in the distribution system such ...
    • Estudi del funcionament i característiques dels interruptors industrials 

      Solsona Becerra, Àxel (Universitat Politècnica de Catalunya, 2018-06-21)
      Bachelor thesis
      Open Access
      El present projecte es basa en l’estudi dels interruptors industrials. Per a entendre què els caracteritza i per a què serveixen, primer de tot s’han d’estudiar i entendre els fenòmens elèctrics contra els quals actuen. ...
    • Estudi, disseny i construcció d'un circuit de protecció per a un convertidor matricial 

      Ortega, Pedro (Universitat Politècnica de Catalunya, 2011)
      Master thesis (pre-Bologna period)
      Open Access
      Aquest treball consisteix en realitzar l’estudi , el disseny i la construcció d’un circuit de protecció per a un interruptor bidireccional, per evitar les sobretensions generades en la seva commutació. S’estudien aquestes ...
    • Future and emergent materials and devices for resistive switching 

      Karakolis, Panagiotis; Normand, Pascal; Dimitrakis, Panagiotis; Ntinas, Vasileios; Fyrigos, Iosif; Karafydillis, Ioannis; Sirakoulis, Georgios (2018)
      Conference report
      Restricted access - publisher's policy
      During the last years, Resistive Random-Access Memories (ReRAMs or RRAMs) stimulated growing attention as promising non-volatile (NV) candidate memories to surpass existing storage devices while exhibiting excellent ...
    • Hysteresis current control technique of VSI for compensation of grid-connected unbalanced loads 

      Pouresmaeil, Edris; Akorede, Mudathir Funsho; Montesinos Miracle, Daniel; Gomis Bellmunt, Oriol; Trujillo Caballero, Juan Carlos (2012-11-29)
      Article
      Restricted access - publisher's policy
      The global trends nowadays in the power generation industry are to supplement the electricity production using distributed generation (DG) technologies based on renewable energy resources such as photovoltaic, wind power, ...
    • Irradiation impact on optimized 4H-SiC MOSFETs 

      Florentín, Matthieu (Universitat Politècnica de Catalunya, 2016-05-20)
      Doctoral thesis
      Open Access
      Silicon (Si) power device’ technologies have reached a high maturity level, but current limitations on mechanic, temperature operation and electric performances require to investigate other semiconductor materials that ...
    • Multilevel single phase isolated inverter with reduced number of switches 

      Verdugo Retamal, Cristian Andrés; Candela García, José Ignacio; Atef Abbas Elsaharty, Mohamed; Rodríguez Cortés, Pedro (2018)
      Conference report
      Open Access
      This paper proposes a cascaded single phase multilevel inverter using an off-the-shelf three-phase inverter and transformer. The concept is based on a cascaded connection of two inverter legs using a typical three phase ...
    • Optimization of an experimental hybrid microgrid operation: reliability and economic issues 

      Milo, Aitor; Gaztañaga, Haizea; Etxeberria Otadui, Ion; Bilbao, Endika; Rodríguez Cortés, Pedro (2009)
      Conference report
      Open Access
      In this paper a hybrid microgrid system, composed of RES (Renewable Energy System) and CHP (Combined Heat and Power) systems together with a battery based storage system is presented. The microgrid is accompanied by a ...
    • Partial shadowing detection based on equivalent thermal voltage monitoring for PV module diagnostics 

      Sera, Dezso; Teodorescu, Remus; Rodríguez Cortés, Pedro (2009)
      Conference report
      Open Access
      Partial shadowing of photovoltaic systems can overproportionally reduce the energy yield and lead to early ageing and failure of the shadowed cells. Large area shadows are relatively easy to detect due to the eminent ...
    • Switching-Cell Arrays - An Alternative Design Approach in Power Conversion 

      Busquets Monge, Sergio; Caballero Díaz, Luis (Institute of Electrical and Electronics Engineers (IEEE), 2018-03-14)
      Article
      Open Access
      The conventional design of voltage-source power converters is based on a two-level half-bridge configuration and the selection of power devices designed to meet the full application specifications (voltage, current, etc.). ...