Exploració per autor "Pou Félix, Josep"
Ara es mostren els items 85-104 de 104
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Recent advances and industrial applications of multilevel converters
Leon, José I.; Kouro, Samir; Malinowski, Mariusz; Gopakumar, K.; Pou Félix, Josep; Franquelo, L. G.; Wu, Bin; Rodríguez, José; Pérez, Marcelo A. (IEEE Press. Institute of Electrical and Electronics Engineers, 2010-08)
Article
Accés restringit per política de l'editorialMultilevel converters have been under research and development for more than three decades and have found successful industrial application. However, this is still a technology under development, and many new contributions ... -
Reducing circulating currents in interleaved converter legs under selective harmonic elimination pulse-width modulation
Konstantinou, Georgios; Pou Félix, Josep; Capellá Frau, Gabriel José; Ceballos Recio, Salvador; Agelidis, Vassilios (2015)
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Accés obertInterleaving of voltage source converter legs enables higher output currents per phase, effectively increasing the power rating without increasing semiconductor ratings. Different switching patterns between the converter ... -
Reliable modular multilevel converter fault detection with redundant voltage sensor
Picas Prat, Ricard; Zaragoza Bertomeu, Jordi; Pou Félix, Josep; Ceballos Recio, Salvador (2016-02-08)
Article
Accés obertThis paper presents a fault-tolerant configuration for the modular multilevel converter (MMC). The procedure is able to detect faults in voltage sensors and semiconductor switching devices, and it can reconfigure the system ... -
SiC modular multilevel converters: sub-module voltage ripple analysis and efficiency estimations
Perez Basante, Angel; Pou Félix, Josep; Ceballos Recio, Salvador; Gil De Muro, Asier; Pujana, Ainhoa; Ibañez, Pedro (2014)
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Accés restringit per política de l'editorialTwo important technical challenges associated with the Modular Multilevel Converter (MMC) are the reduction of the voltage ripple of the Sub-Module (SM) capacitors and the reduction of the converter losses. This paper ... -
Single-carrier phase-disposition PWM implementation for multilevel flying capacitor converters
Ghias, Amer M.Y.M.; Pou Félix, Josep; Capellá Frau, Gabriel José; Agelidis, Vassilios; Aguilera, Ricardo P; Meynard, Thierry A. (2015-10-01)
Article
Accés obertThis letter proposes a new implementation of phase-disposition pulse-width modulation (PD-PWM) for multilevel flying capacitor (FC) converters using a single triangular carrier. The proposed implementation is much simpler ... -
Single-stage inverter-based grid-connected photovoltaic system with ride-through capability over different types of grid faults
Mirhosseini, Mitra; Pou Félix, Josep; Agelidis, Vassilios (2013)
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Accés obertIn this paper the control of a single-stage grid-connected photovoltaic power plant (GCPPP) is developed to address the issue of inverter disconnection under various grid faults. There are three main reasons for inverter ... -
Solid State Transformer Based on the Flying Capacitor Multilevel Converter for Intelligent Power Management
Ghias, Amer M.Y.M.; Ciobotaru, M.; Agelidis, Vassilios; Pou Félix, Josep (IEEEXPLORE, 2012)
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Accés restringit per política de l'editorialFuture grids will consist of large scale of integration of both renewable and other distributed energy sources. Therefore, advanced power electronics converters for critical loads will be needed in order to enhance power ... -
Study and comparison of discontinuous modulation for modular multilevel converters in motor drive applications
Picas Prat, Ricard; Zaragoza Bertomeu, Jordi; Pou Félix, Josep; Ceballos Recio, Salvador; Konstantinou, Georgios; Capellá Frau, Gabriel José (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
Article
Accés obertDiscontinuous 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. ... -
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'editorialThis 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 ... -
Survey on fault operation on multilevel inverters
Lezana, Pablo; Pou Félix, Josep; Meynard, Thierry A.; Rodríguez, José; Ceballos Recio, Salvador; Richardeau, Frédéric (2010-07-01)
Article
Accés obertThis paper is related to faults that can appear in multilevel (ML) inverters, which have a high number of components. This is a subject of increasing importance in high-power inverters. First, methods to identify a fault ... -
Utilising redundant voltage levels for circulating current control in modular multilevel converters
Konstantinou, Georgios; Pou Félix, Josep; Ceballos Recio, Salvador; Picas Prat, Ricard; Zaragoza Bertomeu, Jordi; Agelidis, Vassilios (2015)
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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 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
Konstantinou, Georgios; Darus, Rosheila; Pou Félix, Josep; Ceballos Recio, Salvador; Agelidis, Vassilios (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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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
Ghias, Amer M.Y.M.; Pou Félix, Josep; Agelidis, Vassilios; Ciobotaru, Mihai (2013)
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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
Ghias, Amer M.Y.M.; Pou Félix, Josep; Ciobotaru, M.; Agelidis, Vassilios (2012)
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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
Ghias, Amer M.Y.M.; Pou Félix, Josep; Agelidis, Vassilios; Ciobotaru, Mihai (2013)
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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
Ghias, Amer M.Y.M.; Pou Félix, Josep; Ciobotaru, M.; Agelidis, Vassilios (2012)
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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
Ghias, Amer M.Y.M.; Pou Félix, Josep; Ciobotaru, M.; Agelidis, Vassilios (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
Ghias, Amer M.Y.M.; Pou Félix, Josep; Ciobotaru, M.; Agelidis, Vassilios (2012)
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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
Ghias, Amer M.Y.M.; Pou Félix, Josep; Ciobotaru, Mihai; Agelidis, Vassilios (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 ...