Now showing items 1-20 of 41

  • Analysis and characterization of coupled transmission lines loaded with complementary spiral resonators 

    Gil Galí, Ignacio; Fernández García, Raúl; Balcells Sendra, Josep (2011-02-21)
    Article
    Restricted access - publisher's policy
    In this study, the behaviour of coupled microstrip transmission lines loaded with complementary spiral resonators (CSRs) is analysed in depth. CSRs are constitutive elements for the synthesis of metamaterials with negative ...
  • A new switching frequency modulation scheme for EMI reduction in multiconverter topology 

    Mon González, Juan; Gago Barrio, Javier; González Díez, David; Balcells Sendra, Josep; Fernández García, Raúl; Gil Galí, Ignacio (2009)
    Conference report
    Open Access
    This paper presents a modulation scheme in order to reduce conducted Electromagnetic Interference (EMI) generated by modular power converters with parallel topology. The proposed scheme is based on a combination of ...
  • Common mode EMI model for a direct matrix converter 

    Espina Masramon, Jorge; Balcells Sendra, Josep; Arias Pujol, Antoni; Ortega García, Carlos (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-11)
    Article
    Restricted access - publisher's policy
    This paper presents an electromagnetic interference (EMI) model to evaluate the conducted common mode (CM) disturbances produced by matrix converters (MCs). The model is based on obtaining a high frequency (HF) equivalent ...
  • Common mode model of matrix converter 

    Espina Masramon, Jorge; Balcells Sendra, Josep; Ortega García, Carlos; Arias Pujol, Antoni; de Lillo, Liliana; Empringham, Lee (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
    Conference report
    Restricted access - publisher's policy
    This paper deals with the validation of an EMI model to predict electromagnetic interferences (EMI) produced by direct AC/AC matrix converters (MC). The method is based on obtaining a high frequency equivalent circuit, ...
  • Common mode output waveform reduction for matrix converter drives 

    Espina Masramon, Jorge; Arias Pujol, Antoni; Balcells Sendra, Josep; Ortega García, Carlos (2009)
    Conference report
    Open Access
    This paper presents an alternative Space Vector Modulation (SVM) implemented in Matrix Converters (MC) which improves and reduces the Common Mode (CM) voltage and current output waveforms. The strategy is based on replacing ...
  • Contribution to conducted EMI reduction in multiconverter topology 

    Mon González, Juan; González Díez, David; Gago Barrio, Javier; Balcells Sendra, Josep; Fernández García, Raúl; Gil Galí, Ignacio (2009-11)
    Conference report
    Open Access
    This paper contributes to the conducted EMI reduction generated by switched power converters operating in multiconverter arrangement. The EMI reduction is achieved by means of the combination of two techniques: interleaving ...
  • Control to reduce leading current in a Shunt Hybrid power filter 

    Lamich Arocas, Manuel; Balcells Sendra, Josep; González Díez, David; Gago Barrio, Javier; Jaen Fernandez, Carles; Castillo Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    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 ...
  • Discontinuous modulation of modular multilevel converters without the need for extra submodules 

    Picas Prat, Ricard; Ceballos Recio, Salvador; Pou Félix, Josep; Zaragoza Bertomeu, Jordi; Konstantinou, Georgios; Agelidis, Vassilios; Balcells Sendra, Josep (2015)
    Conference report
    Open Access
  • Effect of driver to gate coupling circuits on EMI produced by SiC MOSFETS 

    Balcells Sendra, Josep; Bogónez Franco, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Open Access
    This work presents a study of the influence of different gate driver circuits on the switching behavior and EMI produced by SiC MOSFET devices used in a boost converter. The paper includes several simulations of ...
  • EMI model of an AC/AC power converter 

    Espina Masramon, Jorge; Balcells Sendra, Josep; Arias Pujol, Antoni; Ortega García, Carlos; Berbel Artal, Néstor (2010)
    Conference report
    Open Access
    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)
    Conference lecture
    Open Access
    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
    Open Access
  • 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 ...
  • Harmonic interaction influence due to current source shunt filters in networks supplying nonlinear loads 

    Sainz Sapera, Luis; Balcells Sendra, Josep (2012)
    Article
    Restricted access - publisher's policy
  • Hybrid modulator for power converters in parallel topology 

    Mon González, Juan; González Díez, David; Balcells Sendra, Josep; Gago Barrio, Javier; Bogónez Franco, Francisco (2012)
    Conference lecture
    Open Access
    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)
    Conference report
    Open Access
    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)
    Conference report
    Open Access
    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)
    Conference report
    Restricted access - publisher's policy
    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
    Open Access
    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 ...
  • 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)
    Conference report
    Open Access
    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 ...