Now showing items 1-18 of 18

    • A modified voltage balancing sorting algorithm for the modular multilevel converter: Evaluation for staircase and phase-disposition PWM 

      Darus, Rosheila; Pou Félix, Josep; Konstantinou, Georgios; Ceballos Recio, Salvador; Agelidis, Vassilios (2014)
      Conference report
      Restricted access - publisher's policy
      This paper introduces a low complexity implementation of the voltage balancing sorting algorithm to reduce the switching frequency of the power devices in modular multilevel converters (MMCs). Two modulation techniques are ...
    • A modified voltage balancing sorting algorithm for the modular multilevel converter: Evaluation for staircase and phase-disposition PWM 

      Darus, Rosheila; Pou Félix, Josep; Konstantinou, Georgios; Ceballos Recio, Salvador; Picas Prat, Ricard; Agelidis, Vassilios (2015-08-01)
      Article
      Open Access
    • Active-Clamp Flyback converter for USB-PD application design and implementation 

      Ametller Antón, Miguel Antonio (Universitat Politècnica de Catalunya, 2021-05-28)
      Master thesis
      Restricted access - confidentiality agreement
    • An anti-islanding method for voltage controlled VSI 

      Llonch Masachs, Marc; Heredero Peris, Daniel; Montesinos Miracle, Daniel (2015)
      Conference lecture
      Restricted access - publisher's policy
      Islanding detection methods have been widely applied and thought for current-controlled voltage source inverters, as in case of photovoltaic inverters. However, some considerations have to be taken into account when ...
    • Analysis of voltage balancing limits in modular multilevel converters 

      Ceballos Recio, Salvador; Pou Félix, Josep; Choi, Sanghun; Saeedifard, Maryam; Agelidis, Vassilios (IEEE, 2011)
      Conference report
      Open Access
      The modular multilevel converter (MMC) is one of the most promising converter topologies for high-voltage applications, especially for high-voltage direct-current (HVDC) transmission systems. One of the most challenging ...
    • Capacitor voltage balance limits in a multilevel-converter-based energy storage system 

      Burusteta, Sendoa; Pou Félix, Josep; Ceballos Recio, Salvador; Marino, Iker; Alzola, José Ángel (2011)
      Conference report
      Open Access
      This paper studies an energy storage system based on a three-level DC-DC converter and a gridconnected neutral-point-clamped inverter. The main advantages of this multilevel power conversion system are highlighted and ...
    • Control design for multiphase synchronous buck converters based on exact constant resistive output impedance 

      Borrell Sanz, Angel; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Matas Alcalá, José; García de Vicuña Muñoz de la Nava, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2013-11)
      Article
      Restricted access - publisher's policy
      This paper describes a control design methodology based on output impedance analysis for multiphase synchronous buck converters. This design leads to an optimal output voltage transient response. Two design alternatives ...
    • Convertidor dc-dc elevador en modo interleaving 

      Rodríguez Navarro, Víctor (Universitat Politècnica de Catalunya, 2015-06)
      Bachelor thesis
      Restricted access - author's decision
      Este proyecto se basa en la conexión de un módulo de supercondensadores a una red de corriente continua, con la finalidad de absorber y entregar potencia con una dinámica mucho más rápida de la que sería capaz de aportar ...
    • Diseño e implementación de la etapa de supervisión de un inversor de 100kW conectado a red 

      Tarraso Martínez, Andrés (Universitat Politècnica de Catalunya, 2014-05-25)
      Bachelor thesis
      Restricted access - author's decision
      Este proyecto está dedicado al estudio de un convertidor conectado a la red eléctrica, donde se estudiará tanto la supervisión del autómata de control de conexión como diferentes técnicas de modulación utilizadas y el ...
    • Grid sequence detector based on a stationary reference frame 

      Robles Sestafe, Eider; Pou Félix, Josep; Ceballos Recio, Salvador; Gabiola, Igor; Santos, Maider (2010-06)
      Article
      Open Access
      This paper proposes a new three-phase positive sequence detector. The scheme is based on a stationary reference frame and a Moving Average Filter (MAF) that guarantees the complete cancellation of harmonics and grid ...
    • Hard-less common mode active EMI filter 

      Pérez Robles, Daniel; González Díez, David; Mon González, Juan; Balcells Sendra, Josep; Gil Galí, Ignacio; Gago Barrio, Javier; Bogónez Franco, Francisco (2012)
      Conference report
      Open Access
      Active EMI filters appear as an alternative to classical EMI filters based on passive components. Active EMI filters can provide more compact, cheaper and lighter solutions than passive approach. In this paper we present ...
    • Inverter design for four-wire microgrids 

      Heredero Peris, Daniel; Pagès Giménez, Marc; Montesinos Miracle, Daniel (2015)
      Conference lecture
      Restricted access - publisher's policy
      This paper presents a PQ four quadrant four-wire three-phase inverter for microgrids integration. The inverter is based in two full-bridge IGBT modules connected in a three-phase configuration plus a threephase parallelized ...
    • Mathematical efficiency modeling of static power converters 

      Hoff Dupont, Fabrício; Zaragoza Bertomeu, Jordi; Rech, Cassiano; Pinheiro, José Renes (2015)
      Conference report
      Open Access
      This paper presents a review and a comparative analysis between mathematical models for the efficiency of power converters. Two different types of models are considered, being one for converters subject solely for output ...
    • Performance analysis of dual-frequency buck converter for integrated power management 

      Shirmohammadli, V.; Saberkari, Alireza; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      The use of dual-frequency (DF) buck converter architecture consisting of a merged structure of high and low frequency buck cells is presented as a candidate topology for integrated power management to obtain favorable ...
    • Simple low-cost hysteretic controller for multiphase synchronous buck converters 

      Borrell, Angel; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Matas Alcalá, José; García de Vicuña Muñoz de la Nava, José Luis (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-06)
      Article
      Restricted access - publisher's policy
      This paper presents a novel hysteretic controller for a multiphase synchronous buck converter supplying low voltage, high current, and high slew-rate loads. The control scheme implements the main control functions for ...
    • Solid State Transformer Based on the Flying Capacitor Multilevel Converter for Intelligent Power Management 

      Ghias, Amer M.Y.M.; Ciobotaru, M.; Agelidis, Vassilios; Pou Félix, Josep (IEEEXPLORE, 2012)
      Conference report
      Restricted access - publisher's policy
      Future grids will consist of large scale of integration of both renewable and other distributed energy sources. Therefore, advanced power electronics converters for critical loads will be needed in order to enhance power ...
    • Study and comparison of discontinuous modulation for modular multilevel converters in motor drive applications 

      Picas Prat, Ricard; Zaragoza Bertomeu, Jordi; Pou Félix, Josep; Ceballos Recio, Salvador; Konstantinou, Georgios; Capellá Frau, Gabriel José (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
      Article
      Open Access
      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. ...
    • Voltage-balancing method using phase-shifted PWM for the flying capacitor multilevel converter 

      Ghias, Amer M.Y.M.; Pou Félix, Josep; Ciobotaru, Mihai; Agelidis, Vassilios (2014-09)
      Article
      Restricted access - publisher's policy
      Multilevel flying capacitor (FC) converters provide natural capacitor voltage balance under phase-shifted pulse width modulation (PS-PWM). However, natural balancing may not be robust enough to maintain the voltages at the ...