Exploració per autor "Ciobotaru, Mihai"

Ara es mostren els items 1-5 de 5

    • Initial capacitor charging in grid-connected flying capacitor multilevel converters 

      Ghias, Amer M.Y.M.; Pou Félix, Josep; Agelidis, Vassilios; Ciobotaru, Mihai (2014-07-01)
      Article
      Accés restringit per política de l'editorial
      This letter reports a method for the initial charging of capacitors in grid-connected flying capacitor (FC) multilevel converters. A resistor is inserted between each phase of the FC converter and the grid. A voltage ...

    • Optimum state voltage balancing method for stacked multicell converters 

      Ghias, Amer M.Y.M.; Pou Félix, Josep; Agelidis, Vassilios; Ciobotaru, Mihai (2013)
      Text en actes de congrés
      Accés obert
      This paper presents a voltage balancing method for stacked multicell converters based on phase disposition pulse-width modulation. This method is based on minimizing a cost function to determine the optimum redundant state ...

    • Voltage balancing method for a seven-level stacked multicell converter using minimum-switching transitions 

      Ghias, Amer M.Y.M.; Pou Félix, Josep; Agelidis, Vassilios; Ciobotaru, Mihai (2013)
      Text en actes de congrés
      Accés obert
      This paper presents a voltage balancing method for stacked multicell converters based on phase disposition pulse-width modulation. This method is based on minimizing a cost function to determine the optimum redundant state ...

    • Voltage balancing method using phase-shifted PWM for stacked multicell converters 

      Ghias, Amer M.Y.M.; Pou Félix, Josep; Agelidis, Vassilios; Ciobotaru, Mihai (2013)
      Text en actes de congrés
      Accés obert
      This paper proposes an active voltage balancing method for stacked multicell converters (SMC) using phase-shifted pulse-width modulation, which is easy to implement and extend to high number of levels. The proposed method ...

    • Voltage-balancing method using phase-shifted PWM for the flying capacitor multilevel converter 

      Ghias, Amer M.Y.M.; Pou Félix, Josep; Ciobotaru, Mihai; Agelidis, Vassilios (2014-09)
      Article
      Accés restringit per política de l'editorial
      Multilevel flying capacitor (FC) converters provide natural capacitor voltage balance under phase-shifted pulse width modulation (PS-PWM). However, natural balancing may not be robust enough to maintain the voltages at the ...