Exploració per tema "multilevel converters"

Ara es mostren els items 1-12 de 12

    • Aportación al control del convertidor CC/CA de tres niveles 

      Alepuz Menéndez, Salvador Simón (Universitat Politècnica de Catalunya, 2004-12-13)
      Tesi
      Accés obert
      La presente tesis estudia, propone y realiza sus principales aportaciones en el campo del control para el convertidor CC/CA de tres niveles, sobre la topología denominada Neutral-Point-Clamped, aunque se puede extender a ...

    • 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 obert
      Among 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 ...

    • Interleaved operation of three-level neutral point clamped converter legs and reduction of circulating currents under SHE-PWM 

      Capellá Frau, Gabriel José; Pou Félix, Josep; Konstantinou, Georgios (Institute of Electrical and Electronics Engineers (IEEE), 2016-06)
      Article
      Accés obert
      Interleaving of voltage-source converter (VSC) legs enables higher output currents per phase, effectively increasing the power rating without increasing semiconductor ratings. However, the interleaved operation results ...

    • Interleaved selective harmonic elimination PWM for single-phase rectifiers in traction applications 

      Konstantinou, Georgios; Agelidis, Vassilios; Pou Félix, Josep (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Interleaved four-quadrant, single-phase rectifiers are widely used in traction applications as part of an AC-DC-AC conversion system. This paper presents selective harmonic elimination pulse-width modulation (SHE-PWM) ...

    • Model predictive current control of grid-connected neutral-point-clamped converters to meet low-voltage ride-through requirements 

      Calle Prado, Alejandro; Alepuz Menéndez, Salvador; Bordonau Farrerons, José; Nicolás Apruzzese, Joan; Cortés, Patricio; Rodríguez Pérez, José (Institute of Electrical and Electronics Engineers (IEEE), 2015-03-01)
      Article
      Accés obert
      The low-voltage ride through (LVRT) requirement demands the wind power plants to remain connected to the grid in the presence of grid voltage dips, actively helping the network overall control to keep network voltage and ...

    • Modulation and control of three-phase PWM multilevel converters 

      Pou Félix, Josep (Universitat Politècnica de Catalunya, 2002-11-11)
      Tesi
      Accés obert
      La present tesi doctoral estudia els inversors trifàsics multinivell del tipus denominat de díodes de fixació (diode-clamped converters). Aquests convertidors poden generar tres o més nivells de tensió a cada fase de ...

    • Modulation strategy for multiphase neutral-point-clamped converters 

      López, Iraide; Ceballos Recio, Salvador; Pou Félix, Josep; Zaragoza Bertomeu, Jordi; Andreu, Jon; Kortabarria, Iñigo; Agelidis, Vassilios (2015-02-01)
      Article
      Accés obert
      This paper presents a novel modulation strategy for n-phase neutral-point-clamped (NPC) converters. The proposed modulation strategy is able to control and completely remove the low-frequency neutral-point (NP) voltage ...

    • Multilevel direct power control-A generalized approach for grid-tied multilevel converter applications 

      Rivera, Sebastian; Kouro, Samir; Wu, Bin; Alepuz Menéndez, Salvador; Malinowski, Mariusz; Cortés, Patricio; Rodriguez, José (2014-10-01)
      Article
      Accés restringit per política de l'editorial
      This paper presents a generalized multilevel direct power control (ML-DPC) scheme for grid-connected multilevel power converters. The proposed method extends the original DPC operating principle by considering only the ...

    • Predictive control of a back-to-back NPC converter-based wind power system 

      Calle Prado, Alejandro; Alepuz Menéndez, Salvador; Bordonau Farrerons, José; Cortés, Patricio; Rodriguez, Jose (Institute of Electrical and Electronics Engineers (IEEE), 2016-07-01)
      Article
      Accés obert
      As wind power technology points to increase power ratings, the implementation based on a permanent-magnet synchronous generator (PMSG) with a full-power converter is expanding its market share. Multilevel converters, as ...

    • 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)
      Text en actes de congrés
      Accés obert
      Interleaving 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 ...

    • 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
      Accés obert
      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 ...

    • 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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Carrier-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 ...