Enviaments recents

  • Study and comparison of discontinuous modulation for modular multilevel converters in motor drive applications 

    Picas, Ricard; Zaragoza Bertomeu, Jordi; Pou, Josep; Ceballos Recio, Salvador; Konstantinou, Georgios; Capellá Frau, Gabriel José (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
    Article
    Accés obert
    Discontinuous modulation applied to modular multilevel converters is an effective method for reducing the capacitor voltage ripples. In this paper, the discontinuous modulation is adapted and used in a motor drive application. ...
  • Defect states assisted charge conduction in Au/MoO3¿x/n-Si Schottky barrier diode 

    Mahato, Somnath; Voz Sánchez, Cristóbal; Biswas, Debaleen; Puigdollers i González, Joaquim (Institute of Physics (IOP), 2018-12-07)
    Article
    Accés restringit per política de l'editorial
    Role of defect states of thermally evaporated molybdenum trioxide (MoO3-x) on electrical conductivity was investigated via low temperature current–voltage and capacitance–voltage measurements. To clarify the charge transport ...
  • Computationally efficient design and optimization approach of PMa-SynRM in frequent operating torque-speed range 

    López Torres, Carlos; García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Lux, Gerhard; Romeral Martínez, José Luis (2018-04-30)
    Article
    Accés restringit per política de l'editorial
    This paper proposes a design process of permanent magnet assisted synchronous reluctance motors (PMa-SynRM) intended for vehicular propulsion. This approach takes into account range optimization and a multiphysics evaluation ...
  • Parameter identification of DC-DC converters under steady-state and transient conditions based on white-box models 

    Riba Ruiz, Jordi-Roger; Moreno Eguilaz, Juan Manuel; Bogarra Rodríguez, Santiago; García Espinosa, Antonio (2018-12-05)
    Article
    Accés obert
    This paper proposes a white-box approach for identifying the parameters of DC-DC buck and boost switch mode power converters. It is based on discretizing the differential equations that describe the dynamic behavior of the ...
  • Detailed off-line parameter identification of synchronous generator based on frequency response tests 

    Bogarra Rodríguez, Santiago; García Espinosa, Antonio; Moreno Eguilaz, Juan Manuel; Riba Ruiz, Jordi-Roger (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Comunicació de congrés
    Accés obert
    This work presents a general methodology, based on standstill frequency response tests. Once the circuit topology is chosen, it allows a systematic calculation of the circuit parameters for a salient pole synchronous ...
  • On-line resistance measurement of substation connectors focused on predictive maintenance 

    Kadechkar, Akash; Riba Ruiz, Jordi-Roger; Moreno Eguilaz, Juan Manuel; Capelli, Francesca; González, David (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Comunicació de congrés
    Accés obert
    To detect faults in their early stage in a substation, it is necessary to monitor, measure and analyze periodically the health condition of the electrical connectors, which are among the most critical devices in such ...
  • Receding-horizon model predictive control for a three-phase VSI with an LCL filter 

    Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis; Camacho Santiago, Antonio; Miret Tomàs, Jaume; Rey, Juan M (Institute of Electrical and Electronics Engineers (IEEE), 2018-11-20)
    Article
    Accés obert
    This paper presents a Continuous Control Set Model Predictive Control with receding horizon for a threephase voltage source inverter with LCL filter, using a reduced model of the converter. The main advantages of using ...
  • Understanding the modeling of computer network delays using neural networks 

    Mestres Sugrañes, Albert; Alarcón Cot, Eduardo José; Ji, Y.; Cabellos Aparicio, Alberto (Association for Computing Machinery (ACM), 2018)
    Text en actes de congrés
    Accés obert
    Recent trends in networking are proposing the use of Machine Learning (ML) techniques for the control and operation of the network. In this context, ML can be used as a computer network modeling technique to build models ...
  • On the observation of electron-hole liquid luminescence under low excitation in Al2O3-passivated c-Si wafers 

    Roige, A; Fernandez Tejero, Javier; Osso, J.O; Goni, A.R; Martín García, Isidro; Voz Sánchez, Cristóbal; Alcubilla González, Ramón; Vega, L. F (2014-11-01)
    Article
    Accés restringit per política de l'editorial
    We report on low-temperature photoluminescence (PL) from aluminum oxide (Al2O3)-passivated c-Si wafers, which surprisingly exhibits clear signature of the formation of the so-called electron-hole liquid (EHL), despite the ...
  • P-type c-Si solar cells based on rear side laser processing of Al 2O 3/SiC x stacks 

    Ortega Villasclaras, Pablo Rafael; Martín García, Isidro; López Rodríguez, Gema; Colina Brito, Mónica Alejandra; Orpella García, Alberto; Voz Sánchez, Cristóbal; Alcubilla González, Ramón (2012-11)
    Article
    Accés restringit per política de l'editorial
    In this work, we further investigate a new strategy to passivate and contact the rear side of p-type c-Si solar cells based on the laser processing of aluminum oxide (Al2O3)/amorphous silicon carbide (SiCx) stacks before ...
  • Simultaneous gettering and emitter formation in multicrystalline-Si wafers by annealing phosphorus doped amorphous silicon compounds 

    Ferré, R.; Martín García, Isidro; Trassl, Roland; Alcubilla González, Ramón; Brendel, Rolf (2011-01-10)
    Article
    Accés restringit per política de l'editorial
    We demonstrate gettering of metal impurities in p-type multicrystalline silicon (mc-Si) wafers by annealing wafers that are surface passivated by double layers of amorphous silicon-based compounds acting as gettering sites. ...
  • Electronic and structural characterisation of a tetrathiafulvalene compound as a potential candidate for ambipolar transport properties 

    Oton, Francisco; Pfattner, Raphael; Pavlica, Egon; Olivier, Yoann; Bratina, Gvido; Cornil, Jerome; Puigdollers i González, Joaquim; Alcubilla González, Ramón; Fontrodona, Xavier; Mas Torrent, Marta; Veciana Miró, Jaume; Rovira Angulo, Concepció (2011)
    Article
    Accés restringit per política de l'editorial
    We report a joint experimental and theoretical study on the electronic structure and the solid-state organisation of bis(naphthoquinone)-tetrathiafulvalene (BNQ-TTF) as a promising ambipolar semiconductor. Accordingly, ...

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