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Ara es mostren els items 62-81 de 82

    • Modulation and capacitor voltage balancing control of a four-level active-clamped dualactive- bridge DC-DC converter 

      Filbà Martínez, Àlber; Busquets Monge, Sergio; Bordonau Farrerons, José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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      Accés restringit per política de l'editorial
      This paper proposes and demonstrates the feasibility of a dual-active-bridge converter built upon four-level active-clamped legs. A suitable modulation pattern is defined. The dc-link capacitor voltage balancing is analyzed ...

    • Modulation and capacitor voltage balancing control of a three-level NPC dual-active-bridge DC-DC converter 

      Filbà Martínez, Àlber; Busquets Monge, Sergio; Bordonau Farrerons, José (2013)
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    • Modulation and capacitor voltage balancing control of multilevel NPC dual active bridge DC-DC Converters 

      Filbà Martínez, Àlber; Busquets Monge, Sergio; Bordonau Farrerons, José (Institute of Electrical and Electronics Engineers (IEEE), 2020-04-01)
      Article
      Accés obert
      The present paper provides a solution to operate multilevel dual active bridge (ML-DAB) converters built upon neutral point clamped switching legs in a full-bridge disposition and with any number of levels on either side ...

    • Multibattery charger system based on a three-level dual-active-bridge power converter 

      Campos Salazar, José Manuel; Busquets Monge, Sergio; Filbà Martínez, Àlber; Alepuz Menéndez, Salvador (2021)
      Text en actes de congrés
      Accés obert
      A charger for two batteries connected in series is presented in this work. From the three-phase grid, the batteries are charged through a three-level neutral-point-clamped ac-dc converter in cascade with a three-level dual ...

    • Multibattery-fed neutral-point-clamped DC-AC converter with SoC balancing control to maximize capacity utilization 

      Busquets Monge, Sergio; Filbà Martínez, Àlber; Alepuz Menéndez, Salvador; Nicolás Apruzzese, Joan; Luque Acera, Adrià; Conesa Roca, Alfons; Bordonau Farrerons, José (Institute of Electrical and Electronics Engineers (IEEE), 2020-01-01)
      Article
      Accés obert
      This paper studies a multilevel multiphase dc-ac conversion system configured by a neutral-point-clamped converter fed by multiple battery packs connected in series. A virtual-vector modulation is selected and a state-of-charge ...

    • Multilevel-clamped multilevel converters (MLC2) 

      Rodríguez Cortés, Pedro; Bellar, Maria Dias; Muñoz Aguilar, Raúl Santiago; Busquets Monge, Sergio; Blaabjerg, Frede (2012-03)
      Article
      Accés restringit per política de l'editorial
      This letter introduces a new series of multilevel (ML) converters based on the ML clamping concept. By applying this technique, a ML clamping unit (MCU) conveys additional levels for synthesizing the output waveforms ...

    • Neutral-point current modeling and control for neutral-point clamped three-level converter drive with small DC-link capacitor 

      Maheshwari, RamKrishan; Munk-Nielsen, Stig; Busquets Monge, Sergio (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
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      A Neutral-Point-Clamped (NPC) three-level inverter with small DC-link capacitors is presented in this paper. This inverter requires zero average neutral-point current for stable neutral-point potential. A simple ...

    • Neutral-point voltage dynamic model of three-level NPC inverter for reactive load 

      Maheshwari, RamKrishan; Munk-Nielsen, Stig; Busquets Monge, Sergio (2012)
      Text en actes de congrés
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      A three-level neutral-point-c1amped inverter needs a controller for the neutral-point voltage. Typically, the controller design is based on a dynamic model. The dynamic model of the neutral-point voltage depends on the ...

    • Neutral-point-clamped DC-AC power converters 

      Busquets Monge, Sergio (2018-02-22)
      Capítol de llibre
      Accés obert
      This article reviews the fundamentals of multilevel multiphase neutral-point-clamped DC–AC power converters. These converters are configured with one or more legs and a common DC-link. Each leg is functionally equivalent ...

    • Operating Principle and Performance Optimization of a Three-Level NPC Dual-Active-Bridge DC-DC Converter 

      Filbà Martínez, Àlber; Busquets Monge, Sergio; Nicolás Apruzzese, Joan; Bordonau Farrerons, José (Institute of Electrical and Electronics Engineers (IEEE), 2015-09-23)
      Article
      Accés obert
      © 1982-2012 IEEE. Aiming to improve the performance features of conventional two-level dual-active-bridge (DAB) converters, this paper presents a three-level neutral-point-clamped (NPC) DAB dc-dc converter. A general ...

    • 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
      Accés restringit per política de l'editorial
      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. ...

    • Performance analysis and design optimization of a self-powered gate-driver supply circuit 

      Busquets Monge, Sergio; Boroyevich, Dushan; Burgos, Rolando; Chen, Zhen (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
      Comunicació de congrés
      Accés obert
      In this paper, the performance of a self-powered unipolar gate driver supply circuit for power devices is studied, with the aim of analyzing the viability of using such circuits in high voltage applications with discrete ...

    • Predictive current control of a back-to-back NPC wind energy conversion system to meet low voltage ride-through requirements 

      Alepuz Menéndez, Salvador; Calle Prado, Alejandro; Busquets Monge, Sergio; Nicolás Apruzzese, Joan; Bordonau Farrerons, José (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Predictive current control is applied to a wind energy conversion system implemented with a permanent-magnet synchronous generator connected to the grid through a back-toback neutral-point-clamped converter. This control ...

    • Pulsewidth modulations for the comprehensive capacitor voltage balance of diode-clamped multilevel converters 

      Busquets Monge, Sergio; Alepuz Menéndez, Salvador; Rocabert Delgado, Joan; Bordonau Farrerons, José (2009)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In the previous literature, the introduction of the virtual space vector concept for the three-level three-leg neutral-point-clamped converter has led to the definition of pulsewidth modulation (PWM) strategies guaranteeing ...

    • Pulsewidth modulations for the comprehensive capacitor voltage balance of n-level three-leg diode-clamped converters 

      Busquets Monge, Sergio; Alepuz Menéndez, Salvador; Rocabert Delgado, Joan; Bordonau Farrerons, José (2009-05)
      Article
      Accés obert
      In the previous literature, the introduction of the virtual-space-vector (VV) concept for the three-level, three-leg neutral-point-clamped converter has led to the definition of pulsewidth modulation (PWM) strategies, ...

    • Pulsewidth modulations for the comprehensive capacitor voltage balance of n-level two-leg diode-clamped converters 

      Busquets Monge, Sergio; Alepuz Menéndez, Salvador; Rocabert Delgado, Joan; Bordonau Farrerons, José (2009-08)
      Article
      Accés restringit per decisió de l'autor
      In the previous literature, the introduction of the virtual space vector concept for the three-level three-leg neutral-point-clamped converter has led to the definition of pulsewidth modulation (PWM) strategies guaranteeing ...

    • Self-powered bipolar gate-driver power supply circuit for neutral-point-clamped converters 

      Busquets Monge, Sergio; Filbà Martínez, Àlber; Nicolás Apruzzese, Joan; Bordonau Farrerons, José (2018)
      Text en actes de congrés
      Accés obert
      The design of gate-driver power supply (GDPS) circuits for multilevel neutral-point-clamped converters is a challenge due to the large number of power switches required and the fact that each device presents a different ...

    • Switching-Cell Arrays - An Alternative Design Approach in Power Conversion 

      Busquets Monge, Sergio; Caballero Diaz, Luis (Institute of Electrical and Electronics Engineers (IEEE), 2018-03-14)
      Article
      Accés obert
      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.). ...

    • Three-level three-phase neutral-point-clamped back-to-back converter applied to a wind emulator 

      Calle Prado, Alejandro; Rocabert Delgado, Joan; Busquets Monge, Sergio; Bordonau Farrerons, José; Alepuz Menéndez, Salvador; Peracaula Roura, Joan (2009)
      Comunicació de congrés
      Accés obert
      This paper presents a three-level three- phase neutral-point-clamped back-to-back converter applied to a wind emulator, where a wind power generator is connected to the grid through the back-to-back converter. The converter ...

    • Three-level three-phase neutral-point-clamped back-to-back converter applied to a wind emulator 

      Calle Prado, Alejandro; Rocabert Delgado, Joan; Busquets Monge, Sergio; Bordonau Farrerons, José; Alepuz Menéndez, Salvador; Peracaula Roura, Joan (2009-09)
      Comunicació de congrés
      Accés obert
      This paper presents a three-level three-phase neutral-point-clamped back-to-back converter applied to a wind emulator, where a wind power generator is connected to the grid through the back-to-back converter. The converter ...