• Control strategies for combining local energy storage with wells turbine oscillating water column devices 

      Ceballos Recio, Salvador; Rea, Judy; Robles Sestafe, Eider; López, Iraide; Pou Félix, Josep; Osullivan, Dara (2015-11-01)
      Article
      Accés obert
    • 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)
      Comunicació de congrés
      Accés obert
      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. ...
    • Efficiency optimization in low inertia wells turbine-oscillating water column devices 

      Ceballos Recio, Salvador; Rea, Judy; López, Iraide; Pou Félix, Josep; Robles Sestafe, Eider; Osullivan, Dara (2013-09)
      Article
      Accés restringit per política de l'editorial
      The Wells turbine is a bidirectional air turbine which operates efficiently over a restricted range of air flow. The optimization of its efficiency requires control of rotational velocity in order to maintain the ratio ...
    • Grid sequence detector based on a stationary reference frame 

      Robles Sestafe, Eider; Pou Félix, Josep; Salvador, Ceballos; Gabiola, Igor; Maider, Santos (EPE Association, 2009-10-31)
      Text en actes de congrés
      Accés obert
      This paper proposes a new three-phase positive sequence detector. The scheme is based on a stationary reference frame and a Moving Average Filter (MAF) that guarantees the complete cancellation of harmonics and grid ...
    • Grid sequence detector based on a stationary reference frame 

      Robles Sestafe, Eider; Pou Félix, Josep; Ceballos Recio, Salvador; Gabiola, Igor; Santos, Maider (2010-06)
      Article
      Accés obert
      This paper proposes a new three-phase positive sequence detector. The scheme is based on a stationary reference frame and a Moving Average Filter (MAF) that guarantees the complete cancellation of harmonics and grid ...
    • 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)
      Comunicació de congrés
      Accés obert
      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 ...
    • Study and experimental verification of control tuning strategies in a variable speed wind energy conversion system 

      Zaragoza Bertomeu, Jordi; Pou Félix, Josep; Arias Pujol, Antoni; Spiteri, Cyril; Robles Sestafe, Eider; Ceballos Recio, Salvador (2011-05)
      Article
      Accés restringit per política de l'editorial
      This paper analyzes and compares different control tuning strategies for a variable speed wind energy conversion system (WECS) based on a permanent-magnet synchronous generator (PMSG). The aerodynamics of the wind turbine ...
    • Variable-Frequency Grid-Sequence Detector Based on a Quasi-Ideal Low-Pass Filter Stage and a Phase-Locked Loop 

      Robles Sestafe, Eider; Ceballos Recio, Salvador; Pou Félix, Josep; Martin, Jose Luis; Zaragoza Bertomeu, Jordi; Ibáñez, P. (2010-09)
      Article
      Accés obert
      This paper proposes a filtered-sequence phase-locked loop (FSPLL) structure for detection of the positive sequence in three-phase systems. The structure includes the use of the Park transformation and moving average ...