Recent Submissions

  • Efficiency comparison between SiC- and Si-based active neutral-point clamped converters 

    Nicolás Apruzzese, Joan; Maset, Enrique; Busquets Monge, Sergio; Esteve, Vicente; Bordonau Farrerons, José; Calle Prado, Alejandro; Jordán, José (2015)
    Conference report
    Restricted access - publisher's policy
    This paper presents an efficiency comparison between silicon-carbide technology and silicon technology. In order to achieve this, the efficiency of an active neutral-point clamped converter built up with silicon carbide ...
  • Enhanced DC-Link Capacitor Voltage Balancing Control of DC-AC Multilevel Multileg Converters 

    Busquets Monge, Sergio; Maheshwari, RamKrishan; Nicolás Apruzzese, Joan; Lupón Roses, Emilio; Munk Nielsen, Stig; Bordonau Farrerons, José (Institute of Electrical and Electronics Engineers (IEEE), 2015-05-01)
    Article
    Restricted access - publisher's policy
    This paper presents a capacitor voltage balancing control applicable to any multilevel dc-ac converter formed by a single set of series-connected capacitors implementing the dc link and semiconductor devices, such as the ...
  • Burden resistor selection in current transformers for low power applications 

    Conesa Roca, Alfons; Bargalló Perpiñá, Ramón; Velasco Quesada, Guillermo; Román Lumbreras, Manuel (Universitat Rovira i Virgili, 2014)
    Conference lecture
    Open Access
    In order to sense AC current with electric isolation in high frequency switching power converters the most simple and low cost solution is to consider a current transformer with a burden resistor. But burden resistor ...
  • Mejoras en el consumo de energía de los transductores de corriente basados en el efecto flux-gate 

    Román Lumbreras, Manuel; Velasco Quesada, Guillermo; Pérez Delgado, Raúl; Conesa Roca, Alfons; Bonell, Marc; Rojas, Antonio (Universitat Rovira i Virgili, 2014)
    Conference lecture
    Open Access
    En este trabajo se presenta una mejora en el diseño de los transductores de corriente flux-gate, con vistas a la reducción del consumo eléctrico de la electrónica de control. Esta mejora consiste en la substitución del ...
  • Estudio eléctrico y térmico en transistores IGBT en paralelo con control de reparto de corriente 

    Pérez Delgado, Raúl; Román Lumbreras, Manuel; Velasco Quesada, Guillermo (Universitat Rovira i Virgili, 2014)
    Conference report
    Open Access
    En este artículo se analiza el comportamiento eléctrico y térmico de transistores PT-IGBT conectados en paralelo utilizando un control activo de reparto equilibrado de corriente. El estudio de la estructura interna y de ...
  • Dynamic average modeling of a bidirectional solid state transformer for feasibility studies and real-time implementation 

    Martínez Velasco, Juan Antonio; Alepuz Menéndez, Salvador; Gonzalez Molina, Francisco; Martín Arnedo, Jacinto (2014-12-01)
    Article
    Restricted access - publisher's policy
    Detailed switching models of power electronics devices often lead to long computing times, limiting the size of the system to be simulated. This drawback is especially important when the goal is to implement the model in ...
  • Predictive control for low-voltage ride-through enhancement of three-level-boost and NPC-converter-based PMSG wind turbine 

    Yaramasu, Venkata; Wu, Bin; Alepuz Menéndez, Salvador; Kouro, Samir (Institute of Electrical and Electronics Engineers (IEEE), 2014-12-01)
    Article
    Restricted access - publisher's policy
    In this paper, a predictive control scheme is proposed for the low-voltage ride-through (LVRT) enhancement of direct-driven permanent-magnet-synchronous-generator-based megawatt-level wind turbines. The proposed method ...
  • FPGA implementation of a PWM for a three-phase DC-AC multilevel active-clamped converter 

    Lupón Roses, Emilio; Busquets Monge, Sergio; Nicolás Apruzzese, Joan (2014-05)
    Article
    Restricted access - publisher's policy
    With the aim to implement a suitable controller for a three-phase dc-ac multilevel active-clamped converter to enable its use in practice, and as a first step toward a full closed-loop converter control implementation into ...
  • The Machreck Energy Development - Solar project MED-Solar 

    Velasco Quesada, Guillermo; Guinjoan Gispert, Francisco; Piqué López, Robert; Román Lumbreras, Manuel; Vallvé, Xavier; Tarragó, J.; Bugatti, N. (2013)
    Conference lecture
    Open Access
  • Electrical PV array reconfiguration strategy for energy extraction improvement in grid-connected PV systems 

    Velasco Quesada, Guillermo; Guinjoan Gispert, Francisco; Piqué López, Robert; Román Lumbreras, Manuel; Alfonso, Conesa (Institute of Electrical and Electronics Engineers (IEEE), 2009-11)
    Article
    Open Access
    This paper applies a dynamical electrical array reconfiguration (EAR) strategy on the photovoltaic (PV) generator of a grid-connected PV system based on a plant-oriented configuration, in order to improve its energy ...

View more