Recent Submissions

  • 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 ...
  • 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 ...
  • 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 ...
  • Analysis of the fault-tolerance capacity of the multilevel active-clamped converter 

    Nicolás Apruzzese, Joan; Busquets Monge, Sergio; Bordonau Farrerons, José; Alepuz Menéndez, Salvador; Calle Prado, Alejandro (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Article
    Restricted access - publisher's policy
    Thanks to the inherent redundancy to generate the different output voltage levels, the multilevel active-clamped (MAC) topology presents an important fault-tolerance ability which makes it interesting for several ...
  • Design of a simpler ampere-hourmeter 

    Farré, Lluís; Closas Torrente, Lluís; Casals Torrens, Pau (2013-04-10)
    Article
    Open Access
    In any application in which working with batteries is a must, the knowledge of the batteries’ state-of-charge (SOC) is a fundamental parameter for anyone, so it determines the remaining capacity in the battery. There exist ...
  • Design of neutral-point voltage controller of a three-level NPC inverter with small DC-link capacitors 

    Maheshwari, RamKrishan; Munk-Nielsen, Stig; Busquets Monge, Sergio (IEEE Press. Institute of Electrical and Electronics Engineers, 2013)
    Article
    Restricted access - publisher's policy
    A neutral-point-clamped three-level inverter with small dc-link capacitors is presented in this paper. The inverter requires zero average neutral-point current for stable neutral–point voltage. The small dc-link capacitors ...
  • Asymptotic time domain evaluation of a multilevel multiphase PWM converter voltage quality 

    Ruderman, Alex; Reznikov, Boris; Busquets Monge, Sergio (IEEE Press. Institute of Electrical and Electronics Engineers, 2012-10-24)
    Article
    Restricted access - publisher's policy
    Voltage total harmonic distortion and quadratic voltage ripple criteria are accepted figures of merit of a multilevel pulse width modulation (PWM) converter voltage quality. The dominating frequency domain approach does ...
  • Overmodulation of n-level three-leg DC-AC diode-clamped converters with comprehensive capacitor voltage balance 

    Busquets Monge, Sergio; Maheshwari, RamKrishan; Munk-Nielsen, Stig (IEEE Press. Institute of Electrical and Electronics Engineers, 2013-05)
    Article
    Restricted access - publisher's policy
    This paper presents a novel pulsewidth modulation (PWM) strategy for n-level three-leg semiconductor-clamped dc–ac converters in the overmodulation region, with dc-link capacitor voltage balance in every switching cycle. ...

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