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Ara es mostren els items 21-40 de 54

    • EMI model of an AC/AC power converter 

      Espina Masramon, Jorge; Balcells Sendra, Josep; Arias Pujol, Antoni; Ortega García, Carlos; Berbel Artal, Néstor (2010)
      Text en actes de congrés
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      This paper deals with the validation of an EMI model to predict electromagnetic interferences (EMI) produced by power converters. A direct AC to AC matrix converter (MC) has been selected as experimental setup for the ...

    • Experimental measurements about harmonic current mitigation of electric vehicle battery chargers 

      Sainz Sapera, Luis; Balcells Sendra, Josep (2011)
      Comunicació de congrés
      Accés obert
      The expected high penetration of battery chargers for electric vehicles (EV) in electric networks is foreseen as a potential problem for power quality. Battery chargers are nonlinear devices that inject harmonic currents ...

    • Guest Editorial 

      Teodorescu, Remus; Sauter, Thilo; Rodríguez Cortés, Pedro; Rodriguez, José; Palensky, Peter; Nasiri, Adel; Kupzog, Friederich; Liserre, M.; Balcells Sendra, Josep; Basso, Thomas; Bialasiewicz, Jan T.; Cecati, Carlo; Chakraborty, Sudipta; Guerrero Zapata, Josep Maria; Kazerani, Mehrdad (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Article
      Accés obert

    • 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)
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      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 ...

    • Harmonic interaction influence due to current source shunt filters in networks supplying nonlinear loads 

      Sainz Sapera, Luis; Balcells Sendra, Josep (2012)
      Article
      Accés restringit per política de l'editorial

    • Hybrid modulator for power converters in parallel topology 

      Mon González, Juan; González Díez, David; Balcells Sendra, Josep; Gago Barrio, Javier; Bogónez Franco, Francisco (2012)
      Comunicació de congrés
      Accés obert
      This paper presents a new mixed modulator that combines interleaving and spread-spectrum techniques in order to achieve the lowest level of conducted EMI generation. This modulator is addressed to power converters in ...

    • Immunity of power line communications (PLC) in disturbed networks 

      Vallbe, Bernat; Balcells Sendra, Josep; Bogónez Franco, Francisco; Mata Diaz, Jorge; Gago Barrio, Javier (2011)
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      This paper presents an analysis of electromagnetic immunity of energy metering devices, using broadband power line communications (PLC) in low voltage (LV) supply networks with high levels of disturbance. Several tests ...

    • Impact of plug-in electric vehicles on the supply grid 

      Balcells Sendra, Josep; García, Josep (2010)
      Text en actes de congrés
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      This paper presents a case study describing the impact of charging process of plug in hybrid vehicles (PHEV) and all electrical vehicles (EV) on the supply grid. The paper shows the distortion produced in the grid by the ...

    • Improvement of driver to gate coupling circuits for SiC MOSFETS 

      Balcells Sendra, Josep; Mon González, Juan; Lamich Arocas, Manuel; Laguna, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      Accés restringit per política de l'editorial
      This work presents a study of the influence of different gate driver circuits on the switching behavior of SiC MOSFET devices used in a buck converter. The paper is based on several tests performed to determine the switching ...

    • Influence of data resolution in nonlinear loads model for harmonics prediction 

      Balcells Sendra, Josep; Lamich Arocas, Manuel; Griful Ponsati, Eulàlia; Corbalán Fuertes, Montserrat (2016)
      Article
      Accés obert
      This paper describes the influence of data resolution in the agreement of models to predict harmonics generated by nonlinear loads (NLL), basically formed by single phase and three phase rectifiers, eventually combined ...

    • INSTRUMENTACIÓ ELECTRÒNICA (Examen 2n quadr.) 

      Balcells Sendra, Josep (Universitat Politècnica de Catalunya, 2009-06-08)
      Examen
      Accés restringit a la comunitat UPC

    • INSTRUMENTACIÓ ELECTRÒNICA (Examen 2n quadr.) 

      Balcells Sendra, Josep (Universitat Politècnica de Catalunya, 2009-04-02)
      Examen
      Accés restringit a la comunitat UPC

    • Interleaving and switching pattern modulation to conducted EMI reduction 

      Mon González, Juan; González Díez, David; Gago Barrio, Javier; Balcells Sendra, Josep; Bogónez Franco, Francisco (2012)
      Text en actes de congrés
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      This paper explores new techniques to reduce the conducted EMI generated by switched power converters operating in multiconverter arrangement. These techniques are based in the combined application of interleaving and ...

    • Lead current reduction in a three phase four wires Shunt Hybrid Filter 

      Lamich Arocas, Manuel; Balcells Sendra, Josep; Castillo Martínez, Jose Luis; Pérez Robles, Daniel (2009)
      Text en actes de congrés
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    • Minimization of Leading Current in a Three Phase Four Wires Shunt Hybrid Filter 

      Lamich Arocas, Manuel; Balcells Sendra, Josep; Gago Barrio, Javier; González Díez, David; Jaen Fernandez, Carles; Castillo Martínez, Jose Luis (2009)
      Article
      Accés restringit per política de l'editorial
      The main drawback of Shunt Hybrid Filters is the need of leading current injection. This paper describes a strategy to reduce the leading current in a three phase four wires LC coupled parallel hybrid filter for harmonics ...

    • Modeling harmonics of networks supplying nonlinear loads 

      Lamich Arocas, Manuel; Balcells Sendra, Josep; Corbalán Fuertes, Montserrat; Sainz Sapera, Luis; Fernandez, Cristian (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work presents the development and validation of a model for electric networks supplying nonlinear loads (NLL). The model is based on Neural Networks (NN) and its purpose is the prediction of harmonic currents sank by ...

    • Modelling harmonics drawn by nonlinear loads 

      Lamich Arocas, Manuel; Balcells Sendra, Josep; Mon González, Juan; Corbalán Fuertes, Montserrat; Griful Ponsati, Eulàlia (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper is devoted to obtain a model of nonlinear loads (NLL) connected to LV electric networks, in order to predict the consequences of including parallel active or passive filters. The model is based on Neural ...

    • Modulation technique to reduce EMI in power multiconverters 

      Mon González, Juan; Gago Barrio, Javier; González Díez, David; Balcells Sendra, Josep; Fernández García, Raúl; Bogónez Franco, Francisco; Gil Galí, Ignacio (2009-04-05)
      Article
      Accés obert
      A new technique to reduce EMI in modular power multiconverters is described. The technique is based on a combination of switching frequency modulation and a variable delay between communication signals of the single ...

    • Multiband EMI filter based on metamaterials 

      Gil Galí, Ignacio; Fernández García, Raúl; Gago Barrio, Javier; Balcells Sendra, Josep (2010-05-10)
      Article
      Accés obert
      A novel compact multiband microstrip EMI filter based on metamaterials is presented. The filter is implemented by means of split-rings resonators and complementary spiral sub-wavelength resonators, conveniently coupled to ...

    • New measuring technique for reducing the number of voltage sensors in modular multilevel converters 

      Picas Prat, Ricard; Zaragoza Bertomeu, Jordi; Pou Félix, Josep; Ceballos Recio, Salvador; Balcells Sendra, Josep (2016-01-01)
      Article
      Accés obert
      This paper presents a new technique for measuring the capacitor voltages in a modular multilevel converter using a reduced number of voltage sensors. With this technique, the minimum number of voltage sensors per arm is ...