Now showing items 1-16 of 16

  • Biological convergence of cancer signatures 

    Pujana, Miguel Angel; Moreno Fernández, Mario Victor; Capellá Frau, Gabriel José; Comellas Padró, Francesc de Paula; Sanjosé, Silvia de; Urruticoechea, Ander; Solé, Xavier; Bonifaci, Núria; López Bigas, Núria; Berenguer, Antoni; Hernández, Pilar; Reina, Oscar; Maxwell, Christopher A.; Aguilar, Helena (2009-09-18)
    Article
    Open Access
    Gene expression profiling has identified cancer prognostic and predictive signatures with superior performance to conventional histopathological or clinical parameters. Consequently, signatures are being incorporated into ...
  • Control strategy to balance operation of parallel connected legs of modular multilevel converters 

    Pou Félix, Josep; Ceballos Recio, Salvador; Konstantinou, Georgios; Capellá Frau, Gabriel José; Agelidis, Vassilios (2013)
    Conference report
    Open Access
    Connecting legs of modular multilevel converters (MMCs) in parallel can assist an MMC-based high-voltage direct current (HVDC) to increase its current ratings and hence overall power handling capability. Consequently, each ...
  • Current balancing strategy in parallel-connected legs of power inverters 

    Pou Félix, Josep; Zaragoza Bertomeu, Jordi; Capellá Frau, Gabriel José; Gabiola, Igor; Salvador, Ceballos; Robles Sestafe, Eider (EPE Association, 2009-10-31)
    Conference lecture
    Open Access
    The parallel connection of inverter legs is a way to increase the output currents and thus the converter rated power. The connection is made by inductors and a critical issue is to achieve balanced currents among the legs. ...
  • Current-balancing technique for interleaved voltage source inverters with magnetically coupled legs connected in parallel 

    Capellá Frau, Gabriel José; Pou Félix, Josep; Ceballos Recio, Salvador; Zaragoza Bertomeu, Jordi; Agelidis, Vassilios (Institute of Electrical and Electronics Engineers (IEEE), 2015-03-01)
    Article
    Open Access
    Connecting legs in parallel in a voltage source inverter is a way to increase the output current and, thus, its rated power. The connection can be made using either coupled or uncoupled inductors, and achieving an even ...
  • Enhanced phase-shifted PWM carrier disposition for interleaved voltage-source inverters 

    Capellá Frau, Gabriel José; Pou Félix, Josep; Ceballos Recio, Salvador; Konstantinou, Georgios; Zaragoza Bertomeu, Jordi; Agelidis, Vassilios (2014-03-01)
    Article
    Open Access
    This letter presents a novel implementation of pulse width modulation that improves the quality of the line-to-line output voltages in interleaved multiphase voltage-source inverters (VSIs). In multiphase VSIs with n ...
  • ICO amplicon NGS data analysis: a web tool for variant detection in common high-risk hereditary cancer genes analyzed by amplicon GS junior next-Generation Sequencing 

    López Dóriga, Adriana; Feliubadalo, Lidia; Menendez, Maria Dolores; Lopez Doriga, Sergio; Morón Duran, Francisco D.; del Valle, Jesús; Tornero, Eva; Montes, Eva; Cuesta, Raquel; Campos, Olga; Gómez, Carolina; Pineda, Marta; González, Sara; Moreno, Victor; Capellá Frau, Gabriel José; Lázaro, Conxi (2013-11-01)
    Article
    Restricted access - publisher's policy
    Next-generation sequencing (NGS) has revolutionized genomic research and is set to have a major impact on genetic diagnostics thanks to the advent of benchtop sequencers and flexible kits for targeted libraries. Among the ...
  • Interleaved operation of three-level neutral point clamped converter legs and reduction of circulating currents under SHE-PWM 

    Capellá Frau, Gabriel José; Pou Félix, Josep; Konstantinou, Georgios (Institute of Electrical and Electronics Engineers (IEEE), 2016-06)
    Article
    Open Access
    Interleaving of voltage-source converter (VSC) legs enables higher output currents per phase, effectively increasing the power rating without increasing semiconductor ratings. However, the interleaved operation results ...
  • Laboratori semipresencial de microprocessadors 

    Ortega Redondo, Juan Antonio; Romeral Martínez, José Luis; Mon González, Juan; Capellá Frau, Gabriel José; Delgado Prieto, Miquel (2006-02)
    Conference report
    Open Access
    L’objectiu final d’aquest projecte és millorar la docència impartida per el Departament d’Enginyeria Electrònica en el Campus de Terrassa en el àrea de microprocessadors. La millora té dos eixos fonamentals, d’una banda ...
  • On improving phase-shifted PWM for flying capacitor multilevel converters 

    Ghias, Amer M. Y. M.; Pou Félix, Josep; Capellá Frau, Gabriel José; Acuna, Pablo; Agelidis, Vassilios (2016-08-01)
    Article
    Restricted access - publisher's policy
    This letter proposes a phase-shifted pulse-width modulation (PS-PWM) technique for the flying capacitor (FC) multilevel converter that improves the quality of the line-to-line voltages. In traditional PS-PWM, the line-to-line ...
  • On the use of sun trackers to improve maximum power point tracking controllers applied to photovoltaic systems 

    Jaen Fernandez, Carles; Pou Félix, Josep; Capellá Frau, Gabriel José; Arias Pujol, Antoni; Lamich Arocas, Manuel (2009)
    Conference report
    Open Access
    Nowadays power supply systems based on photovoltaic cells have two main drawbacks, even the primary energy is free and renewable. They are: production cost and efficiency. In order to increase their efficiency, it should ...
  • Parallel-connected legs in a grid-tied inverter system for distributed generation 

    Capellá Frau, Gabriel José; Pou Félix, Josep; Zaragoza Bertomeu, Jordi; Ceballos Recio, Salvador; Gabiola, Igor; Robles Sestafe, Eider (2011)
    Conference lecture
    Open Access
    Grid-connected high-power inverters are often used in distributed generation and power quality systems. Those inverters have to handle high currents in order to achieve high power values without resorting to higher ...
  • Reducing circulating currents in interleaved converter legs under selective harmonic elimination pulse-width modulation 

    Konstantinou, Georgios; Pou Félix, Josep; Capellá Frau, Gabriel José; Ceballos Recio, Salvador; Agelidis, Vassilios (2015)
    Conference report
    Open Access
    Interleaving of voltage source converter legs enables higher output currents per phase, effectively increasing the power rating without increasing semiconductor ratings. Different switching patterns between the converter ...
  • Single-carrier phase-disposition PWM implementation for multilevel flying capacitor converters 

    Ghias, Amer M.Y.M; Pou Félix, Josep; Capellá Frau, Gabriel José; Agelidis, Vassilios; Aguilera, Ricardo P; Meynard, Thierry A. (2015-10-01)
    Article
    Open Access
    This letter proposes a new implementation of phase-disposition pulse-width modulation (PD-PWM) for multilevel flying capacitor (FC) converters using a single triangular carrier. The proposed implementation is much simpler ...
  • Single-carrier phase-disposition PWM techniques for multiple interleaved voltage-source converter legs 

    Konstantinou, Georgios; Capellá Frau, Gabriel José; Pou, Josep; Ceballos Recio, Salvador (Institute of Electrical and Electronics Engineers (IEEE), 2017-10-26)
    Article
    Open Access
    Interleaved converter legs are typically modulated with individual carriers per leg and phase-shifted PWM (PS-PWM) as it facilitates current balancing amongst the legs. Phase-disposition PWM (PD-PWM), despite the better ...
  • Study and comparison of discontinuous modulation for modular multilevel converters in motor drive applications 

    Picas, Ricard; Zaragoza Bertomeu, Jordi; Pou, 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-source-inverters with legs connected in parallel 

    Capellá Frau, Gabriel José (Universitat Politècnica de Catalunya, 2015-03-26)
    Doctoral thesis
    Open Access
    The number of applications that require the use of power converters has been continually increasing in the last years on account of environmental and economical concerns. The power to be processed by these converters has ...