Ara es mostren els items 1-14 de 14

  • 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)
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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; Agelidis, Vassilios (2014)
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    This paper introduces a low complexity implementation of the voltage balancing sorting algorithm to reduce the switching frequency of the power devices in modular multilevel converters (MMCs). Two modulation techniques are ...
  • An anti-islanding method for voltage controlled VSI 

    Llonch Masachs, Marc; Heredero Peris, Daniel; Montesinos Miracle, Daniel (2015)
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    Islanding detection methods have been widely applied and thought for current-controlled voltage source inverters, as in case of photovoltaic inverters. However, some considerations have to be taken into account when ...
  • Analysis of voltage balancing limits in modular multilevel converters 

    Ceballos Recio, Salvador; Pou Félix, Josep; Choi, Sanghun; Saeedifard, Maryam; Agelidis, Vassilios (IEEE, 2011)
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    The modular multilevel converter (MMC) is one of the most promising converter topologies for high-voltage applications, especially for high-voltage direct-current (HVDC) transmission systems. One of the most challenging ...
  • Capacitor voltage balance limits in a multilevel-converter-based energy storage system 

    Burusteta, Sendoa; Pou Félix, Josep; Ceballos Recio, Salvador; Marino, Iker; Alzola, José Ángel (2011)
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    This paper studies an energy storage system based on a three-level DC-DC converter and a gridconnected neutral-point-clamped inverter. The main advantages of this multilevel power conversion system are highlighted and ...
  • Control design for multiphase synchronous buck converters based on exact constant resistive output impedance 

    Borrell Sanz, Angel; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Matas Alcalá, José; García de Vicuña Muñoz de la Nava, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2013-11)
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    This paper describes a control design methodology based on output impedance analysis for multiphase synchronous buck converters. This design leads to an optimal output voltage transient response. Two design alternatives ...
  • Grid sequence detector based on a stationary reference frame 

    Robles Sestafe, Eider; Pou Félix, Josep; Ceballos Recio, Salvador; Gabiola, Igor; Santos, Maider (2010-06)
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    This paper proposes a new three-phase positive sequence detector. The scheme is based on a stationary reference frame and a Moving Average Filter (MAF) that guarantees the complete cancellation of harmonics and grid ...
  • Hard-less common mode active EMI filter 

    Pérez Robles, Daniel; González Díez, David; Mon González, Juan; Balcells Sendra, Josep; Gil Galí, Ignacio; Gago Barrio, Javier; Bogónez Franco, Francisco (2012)
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    Active EMI filters appear as an alternative to classical EMI filters based on passive components. Active EMI filters can provide more compact, cheaper and lighter solutions than passive approach. In this paper we present ...
  • Inverter design for four-wire microgrids 

    Heredero Peris, Daniel; Pagès Giménez, Marc; Montesinos Miracle, Daniel (2015)
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    This paper presents a PQ four quadrant four-wire three-phase inverter for microgrids integration. The inverter is based in two full-bridge IGBT modules connected in a three-phase configuration plus a threephase parallelized ...
  • Mathematical efficiency modeling of static power converters 

    Hoff Dupont, Fabrício; Zaragoza Bertomeu, Jordi; Rech, Cassiano; Pinheiro, José Renes (2015)
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    This paper presents a review and a comparative analysis between mathematical models for the efficiency of power converters. Two different types of models are considered, being one for converters subject solely for output ...
  • Performance analysis of dual-frequency buck converter for integrated power management 

    Shirmohammadli, V.; Saberkari, Alireza; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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    The use of dual-frequency (DF) buck converter architecture consisting of a merged structure of high and low frequency buck cells is presented as a candidate topology for integrated power management to obtain favorable ...
  • Simple low-cost hysteretic controller for multiphase synchronous buck converters 

    Borrell, Angel; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Matas Alcalá, José; García de Vicuña Muñoz de la Nava, José Luis (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-06)
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    This paper presents a novel hysteretic controller for a multiphase synchronous buck converter supplying low voltage, high current, and high slew-rate loads. The control scheme implements the main control functions for ...
  • 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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    Future 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 ...
  • 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)
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    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 ...