GREP - Grup de Recerca en Electrònica de Potència

 

Recerca en conversió electrònica de potència, per facilitar un disseny estandaritzat, incrementar la densitat de potència, incrementar la fiabilitat, i reduir el cost d'aquests sistemes conversors, i addicionalment millorar les prestacions dels sistemes en els que s'integren.
Per aconseguir-ho, es desenvolupen noves topologies, modulacions i controls de conversió multinivell.
La recerca s'aplica principalment a sistemes d'aprofitament d'energies renovables (solar fotovoltaica i eòlica) i a vehicles elèctrics.

Investigación en conversión electrónica de potencia, para facilitar un diseño estandarizado, incrementar la densidad de potencia, incrementar la fiabilidad, y reducir el coste de estos sistemas conversores, y adicionalmente mejorar las prestaciones de los sistemas en los que se integran.
Para conseguirlo, se desarrollan nuevas topologías, modulaciones y controles de conversión multinivel.
La investigación se aplica principalmente a sistemas de aprovechamiento de energías renovables (solar fotovoltaica y eólica) y a vehículos eléctricos.

Research in power electronic conversion, to facilitate a standardized design, increase the power density, increase the reliability, and reduce the cost of these conversion systems, while at the same time improving the performance features of the systems in which they are integrated.
To achieve this goal, new multilevel conversion topologies, modulations, and controls are developed.
The research is mainly applied to renewable energy systems (solar photovolatic and wind) and to electric vehicles.

Research in power electronic conversion, to facilitate a standardized design, increase the power density, increase the reliability, and reduce the cost of these conversion systems, while at the same time improving the performance features of the systems in which they are integrated.
To achieve this goal, new multilevel conversion topologies, modulations, and controls are developed.
The research is mainly applied to renewable energy systems (solar photovolatic and wind) and to electric vehicles.

Recent Submissions

  • Comparison of modulations and dc-link balance control strategies for a 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 (Institute of Electrical and Electronics Engineers (IEEE), 2022)
    Conference report
    Open Access
    This paper focuses on the study of a charger for two batteries connected in series. From the three-phase grid, the batteries are charged through a three-level neutral-point-clamped (NPC) ac-dc converter in cascade with a ...

  • Benefits of finer semiconductor device granularity on power converter thermal stress and MTTF 

    Rafiezadeh, Roya; Busquets Monge, Sergio; Alepuz Menéndez, Salvador (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Conference report
    Restricted access - publisher's policy
    This article explores the thermal and reliability benefits of configuring the power semiconductor block of power converters with several small standard power semiconductor devices instead of a few larger ones at a fixed ...

  • A Simple Virtual-Vector-Based PWM Formulation for Multilevel Three-Phase Neutral-Point-Clamped DC–AC Converters including the Overmodulation Region 

    Busquets Monge, Sergio (2022-02-01)
    Article
    Open Access
    Neutral-point-clamped (NPC) power conversion topologies are among the most popular multilevel topologies in current industrial products and in industrial and academic research. The proper operation of multilevel three-phase ...

  • 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)
    Conference report
    Open Access
    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 ...

  • Fast Reliability Assessment of Neutral-Point-Clamped Topologies through Markov Models 

    Busquets Monge, Sergio; Rafiezadeh, Roya; Alepuz Menéndez, Salvador; Filbà Martínez, Àlber; Nicolás Apruzzese, Joan (Institute of Electrical and Electronics Engineers (IEEE), 2021-12-01)
    Article
    Open Access
    This article presents detailed Markov models for the reliability assessment of multilevel neutral-point-clamped (NPC) converter leg topologies, incorporating their inherent fault-tolerance under open-circuit switch faults. ...

  • Neutral-point-clamped DC-AC power converters 

    Busquets Monge, Sergio (2018-02-22)
    Part of book or chapter of book
    Open Access
    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 ...

  • Reliability assessment of a fault-tolerant PV multistring inverter 

    Renaudineau, Hugues Jean-Marie; Paradell-Solà, Pol; Trilla Romero, Lluís; Filbà Martínez, Àlber; Cardoner, David; Domínguez García, José Luis (2020-12-10)
    Article
    Open Access
    In photovoltaic (PV) systems, the reliability of the system components, especially the power converters, is a major concern in obtaining cost effective solutions. In order to guarantee service continuity in the case of ...

  • 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
    Open Access
    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 ...

  • High–efficiency power amplifiers 

    Velasco Quesada, Guillermo; Martínez García, Herminio; Conesa Roca, Alfons (CRC Press, 2018)
    Part of book or chapter of book
    Restricted access - publisher's policy
    This chapter describes amplifiers or amplification output stages that are capable of delivering high-output power levels. Since power amplifier stages may deliver high output power to low-impedance loads, they are significantly ...

  • Generic design and implementation of multi-cell multi-phase voltage source inverters 

    Busquets Monge, Sergio; Nicolás Apruzzese, Joan (VDE-Verlag, 2019)
    Conference report
    Restricted access - publisher's policy
    This paper deals with generic design and implementation of multi-cell multi-level multi-phase voltage source inverters. Based on a well-known topology, the paper focuses on place and route design to enable V and/or I ...

  • 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
    Open Access
    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 ...

  • High efficiency power amplifiers 

    Velasco Quesada, Guillermo; Martínez García, Herminio; Conesa Roca, Alfons (2018)
    Part of book or chapter of book
    Open Access

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