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    • 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 ...
    • Study of resonances in 1 x 25 kV AC traction systems with external balancing equipment 

      Mesbahi, Nadhir; Monjo Mur, Lluís; Sainz Sapera, Luis (2016-10-01)
      Article
      Open Access
      AC traction systems are 1 × 25 or 2 × 25 kV/50 Hz single-phase, nonlinear, time-varying loads that can cause power-quality problems, such as unbalanced or distorted voltages. To reduce unbalance, external balancing equipment ...