Now showing items 1-4 of 4

  • Generalized PWM-based method for multiphase neutral-point-clamped converters with capacitor voltage balance capability 

    López, Iraide; Ceballos Recio, Salvador; Pou, Josep; Zaragoza Bertomeu, Jordi; Andreu, Jon; Ibarra Basabe, Edorta; Konstantinou, Georgios (2017-06-12)
    Article
    Open Access
    This paper presents a generalized pulse width modulation (PWM)-based control algorithm for multiphase neutral-point-clamped (NPC) converters. The proposed algorithm provides a zero sequence to be added to the reference ...
  • Single-carrier phase-disposition PWM techniques for multiple interleaved voltage-source converter legs 

    Konstantinou, Georgios; Capellá Frau, Gabriel José; Pou, Josep; Ceballos Recio, Salvador (Institute of Electrical and Electronics Engineers (IEEE), 2017-10-26)
    Article
    Open Access
    Interleaved converter legs are typically modulated with individual carriers per leg and phase-shifted PWM (PS-PWM) as it facilitates current balancing amongst the legs. Phase-disposition PWM (PD-PWM), despite the better ...
  • Study and comparison of discontinuous modulation for modular multilevel converters in motor drive applications 

    Picas, Ricard; Zaragoza Bertomeu, Jordi; Pou, Josep; Ceballos Recio, Salvador; Konstantinou, Georgios; Capellá Frau, Gabriel José (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
    Article
    Open Access
    Discontinuous modulation applied to modular multilevel converters is an effective method for reducing the capacitor voltage ripples. In this paper, the discontinuous modulation is adapted and used in a motor drive application. ...
  • Submodule power losses balancing algorithms for the modular multilevel converter 

    Picas Prat, Ricard; Pou, Josep; Zaragoza Bertomeu, Jordi; Watson, Alan; Konstantinou, Georgios; Ceballos Recio, Salvador; Clare, John (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Open Access
    Tolerance and component aging can cause significant differences in the capacitance values of the submodules (SMs) in a modular multilevel converter (MMC). Depending on the modulation technique, capacitance mismatches may ...