Exploració per autor "Picas Prat, Ricard"
Ara es mostren els items 1-15 de 15
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A modified voltage balancing sorting algorithm for the modular multilevel converter: Evaluation for staircase and phase-disposition PWM
Darus, Rosheila; Pou Félix, Josep; Konstantinou, Georgios; Ceballos Recio, Salvador; Picas Prat, Ricard; Agelidis, Vassilios (2015-08-01)
Article
Accés obert -
Circulating current injection methods based on instantaneous information for the modular multilevel converter
Pou Félix, Josep; Ceballos Recio, Salvador; Konstantinou, Georgios; Agelidis, Vassilios; Picas Prat, Ricard; Zaragoza Bertomeu, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2015-02-01)
Article
Accés obertThis paper studies different circulating current references for the modular multilevel converter. The circulating current references are obtained from the instantaneous values of the output current and modulation signal ... -
Closed-Loop discontinuous modulation technique for capacitor voltage ripples and switching losses reduction in modular multilevel converters
Picas Prat, Ricard; Ceballos Recio, Salvador; Pou Félix, Josep; Zaragoza Bertomeu, Jordi; Konstantinou, Georgios; Agelidis, Vassilios (2015-04-15)
Article
Accés obert -
Control and modulation of modular multilevel converters
Picas Prat, Ricard (Universitat Politècnica de Catalunya, 2016-12-22)
Tesi
Accés obertThe integration of renewable energy sources in the electrical grid is reducing our dependence on fossil fuels. However, to ensure feasibility and reliability of distributed energy generation, more efficient and higher power ... -
Control de velocitat d'un motor a través d'Ethernet
Picas Prat, Ricard (Universitat Politècnica de Catalunya, 2010-06-17)
Projecte/Treball Final de Carrera
Accés obertAquest projecte consisteix en el disseny i construcció d’un dispositiu electrònic capaç de regular la velocitat d’un motor DC comunicant-se per Ethernet i en la implementació d’un software de supervisió i control de ... -
Control of Circulating Currents in Modular Multilevel Converters Through Redundant Voltage Levels
Konstantinou, Georgios; Pou Félix, Josep; Ceballos Recio, Salvador; Picas Prat, Ricard; Zaragoza Bertomeu, Jordi; Agelidis, Vassilios (2016-11-01)
Article
Accés obertAmong the main control targets in a modular multilevel converter (MMC) is the control of the circulating currents within the phase legs of the topology. This paper presents a controller for the circulating current of the ... -
Discontinuous modulation of modular multilevel converters without the need for extra submodules
Picas Prat, Ricard; Ceballos Recio, Salvador; Pou Félix, Josep; Zaragoza Bertomeu, Jordi; Konstantinou, Georgios; Agelidis, Vassilios; Balcells Sendra, Josep (2015)
Text en actes de congrés
Accés obert -
Estudi d'un convertidor MMC
Picas Prat, Ricard (Universitat Politècnica de Catalunya, 2012-07)
Projecte/Treball Final de Carrera
Accés obert -
Minimization of the capacitor voltage fluctuations of a modular multilevel converter by circulating current control
Picas Prat, Ricard; Pou Félix, Josep; Ceballos Recio, Salvador; Agelidis, Vassilios; Saeedifard, Maryam (2012)
Text en actes de congrés
Accés obertThe modular multilevel converter (MMC) is one of the most potential converter topologies for medium/high power/voltage applications. One of the main technical challenges of an MMC is to eliminate/minimize the circulating ... -
New measuring technique for reducing the number of voltage sensors in modular multilevel converters
Picas Prat, Ricard; Zaragoza Bertomeu, Jordi; Pou Félix, Josep; Ceballos Recio, Salvador; Balcells Sendra, Josep (2016-01-01)
Article
Accés obertThis paper presents a new technique for measuring the capacitor voltages in a modular multilevel converter using a reduced number of voltage sensors. With this technique, the minimum number of voltage sensors per arm is ... -
Optimal injection of harmonics in circulating currents of modular multilevel converters for capacitor voltage ripple minimization
Picas Prat, Ricard; Pou Félix, Josep; Ceballos Recio, Salvador; Zaragoza Bertomeu, Jordi; Konstantinou, Georgios; Agelidis, Vassilios (2013)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper proposes an algorithm to calculate the optimal amplitude and phase of the harmonic current components that can be injected in the circulating currents of a modular multilevel converter (MMC) to minimize the ... -
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 ... -
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. ... -
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)
Text en actes de congrés
Accés obertTolerance 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 ... -
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)
Text en actes de congrés
Accés obert