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  • Analysis of the fault-tolerance capacity of the multilevel active-clamped converter

     Nicolás Apruzzese, Joan; Busquets Monge, Sergio; Bordonau Farrerons, Jose; Alepuz Menendez, Salvador; Calle Prado, Alejandro
    IEEE transactions on industrial electronics
    Vol. 60, num. 11, p. 4773-4783
    DOI: 10.1109/TIE.2012.2222856
    Date of publication: 2013
    Journal article

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    Thanks to the inherent redundancy to generate the different output voltage levels, the multilevel active-clamped (MAC) topology presents an important fault-tolerance ability which makes it interesting for several applications. This paper presents an analysis of the fault-tolerance capacity of the MAC converter. Both open-circuit and short-circuit faults are considered, and the analysis is carried out under single-device and two simultaneous device faults. Switching strategies and different hardware modifications to overcome the limitations caused by faults are proposed. Experimental tests with a four-level MAC prototype are presented to validate the analysis.

    Thanks to the inherent redundancy to generate the different output voltage levels, the multilevel active-clamped (MAC) topology presents an important fault-tolerance ability which makes it interesting for several applications. This paper presents an analysis of the fault-tolerance capacity of the MAC converter. Both open-circuit and short-circuit faults are considered, and the analysis is carried out under single-device and two simultaneous device faults. Switching strategies and different hardware modifications to overcome the limitations caused by faults are proposed. Experimental tests with a four-level MAC prototype are presented to validate the analysis.

  • Use of stored energy in PMSG rotor inertia for low-voltage ride-through in back-to-back NPC converter-based wind power systems

     Alepuz Menendez, Salvador; Calle Prado, Alejandro; Busquets Monge, Sergio; Kouro, Samir; Wu, Bin
    IEEE transactions on industrial electronics
    Vol. 60, num. 5, p. 1787-1796
    DOI: 10.1109/TIE.2012.2190954
    Date of publication: 2013-05
    Journal article

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  • Experimental efficiency comparison between a four-level active-clamped and a two-level topology

     Nicolás Apruzzese, Joan; Busquets Monge, Sergio; Bordonau Farrerons, Jose; Alepuz Menendez, Salvador; Calle Prado, Alejandro; Filbà Martínez, Àlber
    Annual Conference of the IEEE Industrial Electronics Society
    p. 6225-6230
    Presentation's date: 2013-11-11
    Presentation of work at congresses

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    This paper presents an efficiency analysis of a recently-published topology, the multilevel-active-clamped (MAC) topology. In order to assess the MAC topology, an efficiency comparison between a four-level MAC leg and a conventional two-level leg operating in low voltage is carried out. First, overall losses of both topologies are estimated. Then, experimental tests to measure their overall losses and their efficiency are presented. Finally, obtained results from the experimental tests are compared with the estimations to substantiate the analysis. The efficiency of the MAC topology is higher in all the switching-frequency range.

    This paper presents an efficiency analysis of a recently-published topology, the multilevel-active-clamped (MAC) topology. In order to assess the MAC topology, an efficiency comparison between a four-level MAC leg and a conventional two-level leg operating in low voltage is carried out. First, overall losses of both topologies are estimated. Then, experimental tests to measure their overall losses and their efficiency are presented. Finally, obtained results from the experimental tests are compared with the estimations to substantiate the analysis. The efficiency of the MAC topology is higher in all the switching-frequency range.

  • Predictive current control of a back-to-back NPC wind energy conversion system to meet low voltage ride-through requirements

     Alepuz Menendez, Salvador; Calle Prado, Alejandro; Busquets Monge, Sergio; Nicolás Apruzzese, Joan; Bordonau Farrerons, Jose
    Annual Conference of the IEEE Industrial Electronics Society
    p. 5304-5309
    Presentation's date: 2013-11-13
    Presentation of work at congresses

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    Predictive current control is applied to a wind energy conversion system implemented with a permanent-magnet synchronous generator connected to the grid through a back-toback neutral-point-clamped converter. This control approach allows to work in steady-state and to fulfill the low-voltage ride through requirements demanded by the power system operators. Dc-link neutral point voltage balance is also achieved by means of the predictive control algorithm.

    Predictive current control is applied to a wind energy conversion system implemented with a permanent-magnet synchronous generator connected to the grid through a back-toback neutral-point-clamped converter. This control approach allows to work in steady-state and to fulfill the low-voltage ride through requirements demanded by the power system operators.Dc-link neutral point voltage balance is also achieved by means of the predictive control algorithm.

  • Técnicas avanzadas de convertidores electrónicos de potencia multinivel de ca aplicadas al uso racional de la energía eléctrica

     Alepuz Menendez, Salvador; Busquets Monge, Sergio; Calle Prado, Alejandro; Nicolás Apruzzese, Joan; Peracaula Roura, Joan; Bordonau Farrerons, Jose
    Competitive project

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  • Q-00018

     Calle Prado, Alejandro; Royano García, Verónica; Gaspar Fabregas, Kàtia; Bordonau Farrerons, Jose
    Competitive project

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  • Fault-tolerance capacity of the multilevel active-clamped topology

     Nicolás Apruzzese, Joan; Busquets Monge, Sergio; Bordonau Farrerons, Jose; Alepuz Menendez, Salvador; Calle Prado, Alejandro
    IEEE Energy Conversion Congress and Exposition
    p. 3411-3418
    DOI: 10.1109/ECCE.2011.6064230
    Presentation's date: 2011-09-22
    Presentation of work at congresses

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    Thanks to the inherent redundancy to generate the different output voltage levels, the multilevel active clamped (MAC) topology presents an important fault-tolerance ability which makes it interesting for several applications. This paper presents an analysis of the fault-tolerance capacity of the MAC converter. Both open-circuit and short-circuit faults are considered and the analysis is carried out under single-device and two-simultaneous-device faults. Switching strategies to overcome the limitations caused by faults are proposed. Experimental tests with a four-level MAC prototype are presented to validate the analysis.

  • Fault-tolerance capacity of the multilevel active clamped topology

     Nicolás Apruzzese, Joan; Busquets Monge, Sergio; Bordonau Farrerons, Jose; Alepuz Menendez, Salvador; Calle Prado, Alejandro
    IEEE Energy Conversion Congress and Exposition
    p. 3411-3418
    DOI: 10.1109/ECCE.2011.6064230
    Presentation's date: 2011
    Presentation of work at congresses

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    Thanks to the inherent redundancy to generate the different output voltage levels, the multilevel active clamped (MAC) topology presents an important fault-tolerance ability which makes it interesting for several applications. This paper presents an analysis of the fault-tolerance capacity of the MAC converter. Both open-circuit and short-circuit faults are considered and the analysis is carried out under single-device and two-simultaneous-device faults. Switching strategies to overcome the limitations caused by faults are proposed. Experimental tests with a four-level MAC prototype are presented to validate the analysis.

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    Control scheme for low voltage ride-through compliance in back-to-back NPC converter based wind power systems  Open access

     Alepuz Menendez, Salvador; Calle Prado, Alejandro; Busquets Monge, Sergio; Bordonau Farrerons, Jose; Kouro, Samir; Wu, Bin
    IEEE International Symposium on Industrial Electronics
    p. 2357-2362
    DOI: 10.1109/ISIE.2010.5637478
    Presentation's date: 2010-07-07
    Presentation of work at congresses

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    The increasing influence of wind power in the power system operation has caused the power system operators to include wind power plants in the control of the overall power system, both in steady-state and transient operation. Therefore, the grid connection requirements of the power system operators involve wind power systems. Low voltage ride-through requirement is probably the most demanding grid connection requirement to meet, at least from the point of view of the wind energy conversion system. In presence of grid voltage dips, the low voltage ride-through compliance produces a mismatch between the generated active power and the active power delivered to the grid. The management of this mismatch supposes a challenge for the wind energy conversion system. In this work, a control scheme for the back-to-back neutral-pointclamped converter is proposed. Under grid voltage dip, the controllers for generator-side and grid-side converters work concurrently to meet the low voltage ride-through requirement by storing the active power surplus in the inertia of the generator and keeping constant the dc-link voltage. Simulation results verify the proposed control scheme.

  • Convertidor trifásico de tres niveles NPC con eliminación selectiva de armónicos conectado a la red ante la presencia de huecos de tensión

     Calle Prado, Alejandro; Alepuz Menendez, Salvador; Bordonau Farrerons, Jose; Kouro, Samir; Busquets Monge, Sergio
    Seminario Anual de Automática, Electrónica Industrial e Instrumentación
    p. 308-313
    Presentation's date: 2010-07-07
    Presentation of work at congresses

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  • DISEÑO E IMPLEMENTACIÓN DE NANOREDES PARA APLICACIONES DOMÉSTICAS, COMERCIALES..

     Alepuz Menendez, Salvador; Busquets Monge, Sergio; Calle Prado, Alejandro; Nicolás Apruzzese, Joan; Bordonau Farrerons, Jose
    Competitive project

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  • Advanced Wide Band Gap Semiconductor Devices for Rational Use of Energy (RUE)

     Alepuz Menendez, Salvador; Busquets Monge, Sergio; Calle Prado, Alejandro; Nicolás Apruzzese, Joan; Peracaula Roura, Joan; Filbà Martínez, Àlber; Bordonau Farrerons, Jose
    Competitive project

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  • Access to the full text
    Three-level three-phase neutral-point-clamped back-to-back converter applied to a wind emulator  Open access

     Calle Prado, Alejandro; Rocabert Delgado, Joan; Busquets Monge, Sergio; Bordonau Farrerons, Jose; Alepuz Menendez, Salvador; Peracaula Roura, Joan
    European Conference on Power Electronics and Applications
    p. 1-10
    Presentation's date: 2009-09
    Presentation of work at congresses

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    This paper presents a three-level three- phase neutral-point-clamped back-to-back converter applied to a wind emulator, where a wind power generator is connected to the grid through the back-to-back converter. The converter regulates the power extracted from the generator and controls how this power is injected to the grid with the desired power factor. Two phase locked loops are in charge of synchronizing the generator-side and the grid-side converters, regardless of the rotor speed of the generator. DC-link neutral point voltage balance is performed by the modulation strategy of the backto- back converter. Simulation and experimental results are provided to verify the correct performance of the system.

  • SUCCESS. Searching Unprecedented Cooperations on Climate and Energy to ensure Sustainability

     Bordonau Farrerons, Jose; Alepuz Menendez, Salvador; Busquets Monge, Sergio; Calle Prado, Alejandro; Nicolás Apruzzese, Joan; Peracaula Roura, Joan; Sumper, Andreas
    Competitive project

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  • Nuevas técnicas de conversión electrónica de potencia en ca para aplicaciones de generación distribuida y accionamientos de ca.

     Busquets Monge, Sergio; Bordonau Farrerons, Jose; Calle Prado, Alejandro; Nicolás Apruzzese, Joan; Rocabert Delgado, Joan
    Competitive project

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