Exploració per autor "Pou Félix, Josep"
Ara es mostren els items 95-104 de 104
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Utilising redundant voltage levels for circulating current control in modular multilevel converters
(2015)
Text en actes de congrés
Accés obert -
Variable-Frequency Grid-Sequence Detector Based on a Quasi-Ideal Low-Pass Filter Stage and a Phase-Locked Loop
(2010-09)
Article
Accés obertThis 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 ... -
Varying and unequal carrier frequency PWM techniques for modular multilevel converters
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialCarrier-based pulse-width modulation (PWM) strategies are commonly applied to modular multilevel converters (MMC). This paper proposes a modified PWM technique with unequal and varying carrier frequencies between consecutive ... -
Voltage balancing method for a seven-level stacked multicell converter using minimum-switching transitions
(2013)
Text en actes de congrés
Accés obertThis 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 the multilevel flying capacitor converter using phase-shifted PWM
(2012)
Text en actes de congrés
Accés restringit per política de l'editorialn flying capacitor (FC) converters, phase-shifted pulse-width modulation (PS-PWM) provides natural voltage balancing. However, for a practical application, a more robust balancing mechanism of maintaining the FC voltages ... -
Voltage balancing method using phase-shifted PWM for stacked multicell converters
(2013)
Text en actes de congrés
Accés obertThis 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 of a five-level flying capacitor converter using optimum switching transitions
(2012)
Text en actes de congrés
Accés obertThe flying capacitor (FC) multilevel converter requires a capacitor voltage balancing mechanism for proper operation. This paper proposes a voltage balancing scheme for a five-level FC converter based on phase disposition ... -
Voltage balancing scheme for the multilevel flying capacitor converter using phase-shifted PWM
(2012)
Text en actes de congrés
Accés obertIn flying capacitor (FC) converters, phase-shifted pulse-width modulation (PS-PWM) provides natural voltage balancing. However, for a practical application, a more robust balancing mechanism of maintaining the FC voltages ... -
Voltage balancing strategy for a five-level flying capacitor converter using phase disposition PWM with sawtooth-shaped arriers
(2012)
Text en actes de congrés
Accés obertThe flying capacitor (FC) multilevel converter has attracted a great deal of interest in the recent years because of its easier extension to a higher number of levels (n>;3), as compared to its counterpart, the diode-clamped ... -
Voltage-balancing method using phase-shifted PWM for the flying capacitor multilevel converter
(2014-09)
Article
Accés restringit per política de l'editorialMultilevel 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 ...
