Exploració per tema "Harmonics (Electric waves)"

Ara es mostren els items 1-20 de 23

    • A three-phase hybrid filter for medium voltage applications using an H-bridge 

      Candela García, José Ignacio; Rodríguez Cortés, Pedro; Nisak, Khairul; Rauma, Kalle; Hermoso Costa, Juan Ramón; Etxeberria, Ion (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents a new solution for filtering current harmonics in three-phase thee-wire medium voltage networks. The hybrid filter topology presented in this paper is characterized by the use of an HBridge instead ...

    • Analysis on capability of harmonic damping using active filter acting as resistive harmonic impedance 

      Hasan, Khurshid N Md; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents the analysis of shunt active filter (SAF) in harmonic damping. SAF with voltage-based detection control act as an active damping and able to attenuate harmonic propagation throughout the power distribution ...

    • Control of high-order harmonics for attoscience using a static-electric-field pattern 

      Serrat Jurado, Carles (2011-12-27)
      Article
      Accés obert

    • Current harmonics cancellation in three-phase four-wire systems by using a four-branch star filtering topology 

      Rodríguez Cortés, Pedro; Candela García, José Ignacio; Luna Alloza, Álvaro; Asiminoaei, Lucian; Teodorescu, R.; Blaabjerg, F. (2009-08)
      Article
      Accés obert
      This paper presents a new solution for filtering current harmonics in three-phase four-wire networks. The original four-branch star (FBS) filter topology presented in this paper is characterized by a particular layout ...

    • Detección y filtrado de armónicos en la red de baja tensión de una industria farmacéutica 

      Poblador Vico, Daniel (Universitat Politècnica de Catalunya, 2018-05-28)
      Treball Final de Grau
      Accés restringit per decisió de l'autor

    • Deterministic and stochastic study of wind farm harmonic currents 

      Sainz Sapera, Luis; Mesas García, Juan José; Teodorescu, Remus; Rodríguez Cortés, Pedro (2010-06-03)
      Article
      Accés obert
      Wind farm harmonic emissions are a well-known power quality problem, but little data based on actual wind farm measurements are available in literature. In this paper, harmonic emissions of an 18MWwind farm are investigated ...

    • Diseño de un controlador para el rechazo selectivo de armónicos de tensión en un inversor CC-CA 

      Malo Barragán, Shane Leonardo; Griñó Cubero, Robert (Benemérita Universidad Autónoma de Puebla, 2007)
      Text en actes de congrés
      Accés obert
      Los inversores cc-ca (corriente continua-corriente alterna) son necesarios en numerosas aplicaciones. El inversor cc-ca de puente completo ha sido tratado ampliamente tanto en aplicaciones industriales como en la literatura. ...

    • Enhanced control strategy for MMC-based STATCOM for unbalanced load compensation 

      Nieves, M.; Maza, J.M.; Mauricio, J.M.; Teodorescu, Remus; Bongiorno, M.; Rodríguez Cortés, Pedro (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Modular Multilevel Converters (MMC) technology is today one of the preferred technology in HVDC and large STATCOM applications due to modularity, fault tolerance and high efficiency, but the voltage balancing becomes very ...

    • Estudio y simulación de métodos para reducir el contenido armónico de cargas no lineales 

      Solanich Ballarin, Jaime (Universitat Politècnica de Catalunya, 2016-10-25)
      Treball Final de Grau
      Accés restringit per decisió de l'autor

    • Four-branch star neutral current hybrid power filter and var compensator 

      Rodríguez Cortés, Pedro; Candela García, José Ignacio; Luna Alloza, Álvaro; Teodorescu, Remus; Blaabjerg, F.; Rocabert Delgado, Joan (2010)
      Text en actes de congrés
      Accés obert
      This paper presents a solution for filtering current harmonics in three-phase four-wire networks based on the usage of a four-branch star (FBS) filter topology. The specific layout of single-phase inductors and capacitors ...

    • Grid harmonic detection and system resonances indentification in wave power plant applications 

      Nisak, Khairul; Mir Cantarellas, Antonio; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      There is a growing interest in electrical grid connection of single unit Wave Energy Converters (WECs), as well as the multiple units based Wave Power Plant (WPP) applications. Due to the increasing integration of high ...

    • LED lamp modelling for harmonic studies in distribution systems 

      Molina, Julio; Mesas García, Juan José; Mesbahi, Nadhir; Sainz Sapera, Luis (2017-03-09)
      Article
      Accés restringit per decisió de l'autor
      Energy saving policies have boosted the use of light emitting diode (LED) lamps in distribution networks. These lamps are non-linear loads which inject harmonic currents into the distribution system, which has led to a ...

    • Mesures de dispersió òptica amb detecció de segon harmònic. Anàlisi teòrica 

      Martí Sarri, Arnau (Universitat Politècnica de Catalunya, 2009-02)
      Projecte/Treball Final de Carrera
      Accés obert
      Degut a l’ambició en els objectius s’ha realitzat aquest PFC entre dos estudiants. Tot i la naturalesa compartida de la memòria cal considerar a cadascun responsable d’una vessant diferenciada. La part analítica està ...

    • Mesures de dispersió òptica amb detecció de segon harmònic. Treball de laboratori 

      Carnero Tresserras, Aleix (Universitat Politècnica de Catalunya, 2009-02)
      Projecte/Treball Final de Carrera
      Accés obert
      Degut a l’ambició en els objectius s’ha realitzat aquest PFC entre dos estudiants. Tot i la naturalesa compartida de la memòria cal considerar a cadascun responsable d’una vessant diferenciada. De la part experimental ...

    • Minimization of Leading Current in a Three Phase Four Wires Shunt Hybrid Filter 

      Lamich Arocas, Manuel; Balcells Sendra, Josep; Gago Barrio, Javier; González Díez, David; Jaen Fernandez, Carles; Castillo Martínez, Jose Luis (2009)
      Article
      Accés restringit per política de l'editorial
      The main drawback of Shunt Hybrid Filters is the need of leading current injection. This paper describes a strategy to reduce the leading current in a three phase four wires LC coupled parallel hybrid filter for harmonics ...

    • Multiple second order generalized integrators for harmonic synchronization of power converters 

      Rodríguez Cortés, Pedro; Luna Alloza, Álvaro; Etxebarría, Ion; Hermoso Costa, Juan Ramón; Teodorescu, Remus (2009)
      Text en actes de congrés
      Accés obert
      This paper presents a new frequency-adaptive synchronization method for grid-connected power converters which allows estimating not only the positive- and negativesequence components of the power signal at the ...

    • Proposal of a resonant controller for a three phase four wire grid-connected shunt hybrid filter 

      Candela García, José Ignacio; Rodríguez Cortés, Pedro; Luna Alloza, Álvaro; Teodorescu, R.; Blaabjerg, F. (2009-09)
      Comunicació de congrés
      Accés obert
      This paper present a three-phase four wire hybrid filter able to perform a selective cancellation of harmonic currents based on resonant controllers. As it will be shown in this work, this kind of control permits to ...

    • Selective harmonic-compensation control for single-phase active power filter with high harmonic rejection 

      Miret Tomàs, Jaume; Castilla Fernández, Miguel; Matas Alcalá, José; Guerrero Zapata, Josep Maria; Vásquez Quintero, Juan Carlos (2009-08-11)
      Article
      Accés obert
      This paper presents a linear current control scheme for single-phase active power filters. The approach is based on an outer voltage loop, an inner current loop, and a resonant selective harmonic compensator. The design ...

    • Statistical study of resonance in AC traction systems equipped with Steinmetz circuit 

      Monjo Mur, Lluís; Sainz Sapera, Luis; Rull Duran, Joan (2013-10)
      Article
      Accés restringit per política de l'editorial
      AC traction systems can be 25 kV/50 Hz single-phase, non-linear, time-varying loads of random naturecausing unbalance and distortion of the supply voltages. To reduce voltage unbalance, thyristor controlledreactances are ...

    • Strong-field-enhanced forward scattering of high-order harmonics 

      Serrat Jurado, Carles (Springer, 2015-01-25)
      Capítol de llibre
      Accés obert
      We show that scattering of ultrashort XUV pulses from strong-field driven electron wave packets is enhanced as compared with normal weak scattering from bound or free electrons. We predict large XUV amplification in ...