Exploració per autor "Sainz Sapera, Luis"Més informacióMés informació

Ara es mostren els items 25-44 de 66

    • Harmonic interaction influence due to current source shunt filters in networks supplying nonlinear loads 

      Sainz Sapera, Luis; Balcells Sendra, Josep (2012)
      Article
      Accés restringit per política de l'editorial

    • Harmonic resonance stability of aeronautical ground lighting systems 

      Vidal, Daniel; Monjo Mur, Lluís; Sainz Sapera, Luis (Institute of Electrical and Electronics Engineers (IEEE), 2018-12)
      Article
      Accés restringit per política de l'editorial
      Aeronautical ground lighting (AGL) systems assist aircraft pilots in airport operations. These systems are singlephase series circuits where constant current regulators (CCRs) feed luminaires with an adjustable rms current. ...

    • Impact of short-circuit ratio on control parameter settings of DFIG wind turbines 

      Pedra Durán, Joaquim; Sainz Sapera, Luis; Monjo Mur, Lluís (2024-04-11)
      Article
      Accés obert
      This work deals with doubly fed induction generator (DFIG) modeling and stability when connected to weak AC grids. A detailed state-space model that includes the phase-locked loop (PLL) is developed. This work aims to ...

    • Impact of voltage sags on DC bus voltage in unipolar LVDC systems 

      Monjo Mur, Lluís; Mesas García, Juan José; Sainz Sapera, Luis; Saura Perisé, Jaime; Pedra Durán, Joaquim (2015)
      Text en actes de congrés
      Accés obert

    • Impedance-based analysis of harmonic instabilities in HVDC-connected Offshore Wind Power Plants 

      Cheah Mañé, Marc; Sainz Sapera, Luis; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (2019-03-01)
      Article
      Accés obert
      HVDC-connected Offshore Wind Power Plants (OWPPs) with a large number of power converters are prone to instabilities due to interactions with converter controllers. This paper analyzes harmonic instabilities in OWPPs ...

    • Influence of Steinmetz circuit capacitor degradation on series resonance of networks 

      Sainz Sapera, Luis; Caro Huertas, Manuel; Caro, Eduardo (2011-07)
      Article
      Accés restringit per política de l'editorial

    • 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 ...

    • Low-watt compact fluorescent lamps with electronic ballasts 

      Cunill Solà, Jordi; Mesas García, Juan José; Sainz Sapera, Luis (Universidad de Málaga, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial

    • Model of aeronautical ground lighting system transformers 

      lomvarte, daniel; Monjo Mur, Lluís; Sainz Sapera, Luis; Pedra Durán, Joaquim (2015-03-02)
      Article
      Accés obert
      Airport ground lighting (AGL) systems provide visual reference to aircrafts during airport operations. In AGL systems, constant current regulators feed a beacon circuit supplied through isolation transformers. Component ...

    • Model of discharge lamps with magnetic ballast 

      Molina, Julio; Sainz Sapera, Luis; Mesas García, Juan José; Bergas Jané, Joan Gabriel (2013-02)
      Article
      Accés restringit per política de l'editorial
      Magnetic ballast discharge lamp modeling has been extensively studied because these lamps can be an important source of harmonics. Discharge lamp models usually represent the arc voltage by a square waveform. However, this ...

    • Model of discharge lamps with saturated magnetic ballast and non-square arc voltage 

      Molina, Julio; Sainz Sapera, Luis; Monjo Mur, Lluís (2013-11-01)
      Article
      Accés restringit per política de l'editorial
      Harmonic modeling of high intensity discharge lamps with magnetic ballast has been extensively studied because they are energy-efficient lighting devices commonly used in industrial and public installations, and can be ...

    • Model of electronic ballast compact fluorescent lamps 

      Molina, Julio; Sainz Sapera, Luis (2014-06-01)
      Article
      Accés restringit per política de l'editorial
      The use of compact fluorescent lamps (CFLs) in utility distribution systems is spreading due to energy consumption concerns. This can damage system power quality because CFLs are nonlinear harmonic injecting loads. For ...

    • Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systems 

      Monjo Mur, Lluís; Sainz Sapera, Luis; Pedra Durán, Joaquim (Elsevier, 2024-01)
      Article
      Accés obert
      Photovoltaic (PV) power systems are becoming one of the most popular green power systems. Power converters are used in these systems. Among them, quasi-Z-source inverters (qZSIs) are currently on the rise. However, ...

    • Modeling harmonics of networks supplying nonlinear loads 

      Lamich Arocas, Manuel; Balcells Sendra, Josep; Corbalán Fuertes, Montserrat; Sainz Sapera, Luis; Fernandez, Cristian (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work presents the development and validation of a model for electric networks supplying nonlinear loads (NLL). The model is based on Neural Networks (NN) and its purpose is the prediction of harmonic currents sank by ...

    • Modelling VSCs connected to weak grids 

      Orellana Montaño, Luis Carlos; Prieto Araujo, Eduardo; Sainz Sapera, Luis; Cheah Mañé, Marc; Gomis Bellmunt, Oriol (2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper addresses the oscillatory stability phenomena studied in the literature and reported by network operators in grid-connected VSC systems. Negative interactions have been observed at different frequencies in these ...

    • Models and methods for steady-state analysis of radial multi-energy grids and microgrids 

      Mesas García, Juan José; Sainz Sapera, Luis; Gordillo Torres, Jordi (2023)
      Text en actes de congrés
      Accés obert
      The interconnection between different energy networks leads to interdependencies that require suitable models and methods for their analysis. This paper presents appropriate models and methods for integrated and steady-state ...

    • Neutral conductor current in three-phase networks with compact fluorescent lamps 

      Cunill Solà, Jordi; Sainz Sapera, Luis; Mesas García, Juan José (2013-10)
      Article
      Accés obert
      In this paper, expressions of the neutral conductor current in three-phase networks with compact fluorescent lamps (CFLs) are obtained from a CFL “black-box” model proposed in the literature. These expressions allow studying ...

    • On electric vehicle battery charger modeling 

      Sainz Sapera, Luis; Mesas García, Juan José; Balcells Sendra, Josep (2011)
      Comunicació de congrés
      Accés obert
      The increase of electric vehicle (EV) battery chargers connected to electric networks could lead to future harmonic problems in power systems. These loads are nonlinear devices that inject harmonic currents and pollute ...

    • On resonance instabilities in VSCs connected to weak grids 

      Orellana Montaño, Luis Carlos; Prieto Araujo, Eduardo; Sainz Sapera, Luis; Cheah Mañé, Marc; Gomis Bellmunt, Oriol (2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper addresses the oscillatory stability phenomena studied in the literature and reported by network operators in grid-connected VSC systems. Negative interactions have been observed at different frequencies in these ...

    • On the square arc voltage waveform model in magnetic discharge lamp studies 

      Molina, Julio; Sainz Sapera, Luis; Mesas García, Juan José (2011)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The current number of magnetic and electronic ballast discharge lamps in power distribution systems is increasing because they perform better than incandescent lamps. This paper studies the magnetic discharge lamp ...