Now showing items 1-20 of 21

    • A unified analytical model for characterization of cable faults in VSC DC systems 

      Mesas García, Juan José; Monjo Mur, Lluís; Sainz Sapera, Luis; Pedra Durán, Joaquim (2015)
      Conference report
      Open Access
    • An improved harmonic load flow formulation 

      Rashid, Asim; Mesas García, Juan José; Sainz Sapera, Luis (Taylor & Francis, 2019-10-21)
      Article
      Restricted access - publisher's policy
      The paper contributes an improved harmonic load flow formulation with fewer convergence problems but the same accurate results as traditional formulations. The proposed formulation approaches the harmonic load flow problem ...
    • Cable fault characterization in VSC DC systems 

      Mesas García, Juan José; Monjo Mur, Lluís; Sainz Sapera, Luis; Pedra Durán, Joaquim (2016)
      Conference lecture
      Restricted access - publisher's policy
    • Deterministic and stochastic assessment of the harmonic currents consumed by discharge lamps 

      Mesas García, Juan José; Sainz Sapera, Luis; Ferrer Biosca, Alberto (2011-01)
      Article
      Restricted access - publisher's policy
    • Deterministic and stochastic study of wind farm harmonic currents 

      Sainz Sapera, Luis; Mesas García, Juan José; Teodorescu, Remus; Rodríguez Cortés, Pedro (2010-06-03)
      Article
      Open Access
      Wind farm harmonic emissions are a well-known power quality problem, but little data based on actual wind farm measurements are available in literature. In this paper, harmonic emissions of an 18MWwind farm are investigated ...
    • Electrical resonance instability study in traction systems 

      Sainz Sapera, Luis; Monjo Mur, Lluís; Mesas García, Juan José; Pedra Durán, Joaquim; Cheah Mañé, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      Traction system stability can be affected by the interaction between the traction load and resonances in the railway traction grid. This paper presents an electrical resonance instability study applied to traction systems. ...
    • Electrical resonance instability study in wind power plants 

      Sainz Sapera, Luis; Mesas García, Juan José; Monjo Mur, Lluís; Pedra Durán, Joaquim; Cheah Mañé, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      Wind power plant stability can be affected by the interaction between the wind turbine and the resonances in the collector grid. This paper presents an electrical resonance instability study applied to wind power plants. The ...
    • Estudio y caracterización de cargas no lineales 

      Mesas García, Juan José (Universitat Politècnica de Catalunya, 2010-01-27)
      Doctoral thesis
      Open Access
      As a continuation of the work done by the QSE (Electrical Supply Quality) research group at the UPC (Polytechnic University of Catalonia) on non-linear load modelling to determine harmonic distortion in electrical power ...
    • Experimental measurements of fluorescent lamp harmonic current emissions and their impact on neutral current 

      Cunill Solà, Jordi; Mesas García, Juan José; Sainz Sapera, Luis (2011)
      Conference report
      Restricted access - publisher's policy
    • Impact of voltage sags on DC bus voltage in unipolar LVDC systems 

      Monjo Mur, Lluís; Mesas García, Juan José; Sainz Sapera, Luis; Saura Perisé, Jaime; Pedra Durán, Joaquim (2015)
      Conference report
      Open Access
    • LED lamp modelling for harmonic studies in distribution systems 

      Molina, Julio; Mesas García, Juan José; Mesbahi, Nadhir; Sainz Sapera, Luis (2017-03-09)
      Article
      Restricted access - author's decision
      Energy saving policies have boosted the use of light emitting diode (LED) lamps in distribution networks. These lamps are non-linear loads which inject harmonic currents into the distribution system, which has led to a ...
    • Low-watt compact fluorescent lamps with electronic ballasts 

      Cunill Solà, Jordi; Mesas García, Juan José; Sainz Sapera, Luis (Universidad de Málaga, 2011)
      Conference report
      Restricted access - publisher's policy
    • Model of discharge lamps with magnetic ballast 

      Molina, Julio; Sainz Sapera, Luis; Mesas García, Juan José; Bergas Jané, Joan Gabriel (2013-02)
      Article
      Restricted access - publisher's policy
      Magnetic ballast discharge lamp modeling has been extensively studied because these lamps can be an important source of harmonics. Discharge lamp models usually represent the arc voltage by a square waveform. However, this ...
    • Neutral conductor current in three-phase networks with compact fluorescent lamps 

      Cunill Solà, Jordi; Sainz Sapera, Luis; Mesas García, Juan José (2013-10)
      Article
      Open Access
      In this paper, expressions of the neutral conductor current in three-phase networks with compact fluorescent lamps (CFLs) are obtained from a CFL “black-box” model proposed in the literature. These expressions allow studying ...
    • On electric vehicle battery charger modeling 

      Sainz Sapera, Luis; Mesas García, Juan José; Balcells Sendra, Josep (2011)
      Conference lecture
      Open Access
      The increase of electric vehicle (EV) battery chargers connected to electric networks could lead to future harmonic problems in power systems. These loads are nonlinear devices that inject harmonic currents and pollute ...
    • On the square arc voltage waveform model in magnetic discharge lamp studies 

      Molina, Julio; Sainz Sapera, Luis; Mesas García, Juan José (2011)
      Conference lecture
      Restricted access - publisher's policy
      The current number of magnetic and electronic ballast discharge lamps in power distribution systems is increasing because they perform better than incandescent lamps. This paper studies the magnetic discharge lamp ...
    • Parameter estimation procedures for compact fluorescent lamps with electronic ballasts 

      Sainz Sapera, Luis; Cunill Solà, Jordi; Mesas García, Juan José (2013-02)
      Article
      Restricted access - publisher's policy
    • Statistical study of personal computer cluster harmonic currents from experimental measurements 

      Mesas García, Juan José; Sainz Sapera, Luis; Sala Pérez, Pau (2015-01-02)
      Article
      Open Access
      The net harmonic currents generated by a cluster of desktop personal computers are studied statistically. Personal computers (PCs) are single-phase non-linear loads with low individual consumption but significant collective ...
    • Study of cable short circuit in VSC DC systems 

      Monjo Mur, Lluís; Mesas García, Juan José; Sainz Sapera, Luis; Pedra Durán, Joaquim (2015)
      Conference report
      Restricted access - publisher's policy
    • Study of MVDC system benchmark networks 

      Mesas García, Juan José; Monjo Mur, Lluís; Sainz Sapera, Luis; Pedra Durán, Joaquim (2015)
      Conference report
      Restricted access - publisher's policy