Recent Submissions

  • Integration of cold ironing and renewable sources in the Barcelona smart port 

    Rolán Blanco, Alejandro; Manteca, Paola; Oktar, Rahime; Siano, Pierluigi (2019-11)
    Article
    Restricted access - publisher's policy
    Cold ironing, which is the procedure of supplying shoreside electrical power to a ship at berth when its engines are turned off, arises as the eco-friendly way to deliver power to ships while they are berthed in ports, ...
  • A survey and evaluation of the potentials of distributed ledger technology for peer-to-peer transactive energy exchanges in local energy markets 

    Siano, Pierluigi; De Marco, Giuseppe; Rolán Blanco, Alejandro; Loia, Vincenzo (2019-09)
    Article
    Restricted access - publisher's policy
    Theunpredictability and intermittency introduced by Renewable Energy Sources (RESs) in power systems may lead to unforeseen peaks of energy production, which might differ from energy demand. To manage these mismatches, a ...
  • Doubly fed induction generator-based variable-speed wind turbine: proposal of a simplified model under a faulty grid with short-duration faults 

    Rolán Blanco, Alejandro; Pedra Durán, Joaquim (2019-08)
    Article
    Open Access
    The aim of this study is to provide a simplified model of a variable-speed wind turbine (VSWT) with the technology of a doubly-fed induction generator (DFIG) which operates under faulty grid conditions. A simplified model ...
  • Initialization of DFIG wind turbines with a phasor-based approach 

    Rolán Blanco, Alejandro; Pedra Durán, Joaquim (2019-03)
    Article
    Open Access
    The objective of this paper is to propose a simple approach to solve the steady state of a wind turbine (WT) equipped with a doubly-fed induction generator (DFIG) which can be used to initialize dynamic studies of the ...
  • Analysis of the performance of MMC under fault conditions in HVDC-based off-shore wind farms 

    Vidal-Albalate, Ricardo; Beltran, Héctor; Rolán Blanco, Alejandro; Belenguer Balaguer, Enrique Francisco; Peña, Rubén; Blasco-Giménez, Ramón (Institute of Electrical and Electronics Engineers (IEEE), 2016-04)
    Article
    Open Access
    This paper analyzes the behavior of a modular multilevel converter-high-voltage direct-current (MMC HVDC)-connected offshore wind power plant (WPP) during dc faults. For that purpose, detailed models of the dc cable, MMC ...
  • Voltage sag influence on controlled three-phase grid-connected inverters according to the Spanish grid code 

    Bakkar, Mostafa; Bogarra Rodríguez, Santiago; Rolán Blanco, Alejandro; Córcoles López, Felipe; Saura Perisé, Jaime (2020-02-03)
    Article
    Open Access
    To ensure the safe operation of the grid, there are some requirements to be taken into consideration to connect power converters. During abnormal conditions – e.g. during voltage sags –, the control of the converters is a ...
  • Voltage recovery influence on three-phase grid-connected inverters under voltage sags 

    Rolán Blanco, Alejandro; Giménez, Pablo; Yague, Sauro J.; Bogarra Rodríguez, Santiago; Saura Perisé, Jaime; Bakkar, Mostafa (2019-02-12)
    Article
    Open Access
    Faults in power systems cause voltage sags, which, in turn, provoke large current peaks in grid-connected equipment. Then, a complete knowledge of the inverter behaviour is needed to meet fault ride-through capability. The ...
  • Testing of three-phase equipment under voltage sags 

    Rolán Blanco, Alejandro; Córcoles López, Felipe; Pedra Durán, Joaquim; Monjo Mur, Lluís; Bogarra Rodríguez, Santiago (2015-04-09)
    Article
    Open Access
    This paper provides insight into the testing of three-phase equipment exposed to voltage sags caused by faults. The voltage sag recovers at the fault-current zeros, leading to a ‘discrete’ voltage recovery, that is, the ...
  • Detailed study of DFIG-based wind turbines to overcome the most severe grid faults 

    Rolán Blanco, Alejandro; Pedra Durán, Joaquim; Córcoles López, Felipe (2014-11-01)
    Article
    Restricted access - publisher's policy
    This paper studies the effects of voltage sags caused by faults on doubly-fed induction generators to overcome grid faults. A wide range of sag duration and depth values is considered. It is observed that sag duration ...
  • Behaviour of the doubly fed induction generator exposed to unsymmetrical voltage sags 

    Rolán Blanco, Alejandro; Córcoles López, Felipe; Pedra Durán, Joaquim (2012-09)
    Article
    Restricted access - publisher's policy
    This study analyses the dynamic behaviour of the doubly fed induction generator exposed to unsymmetrical voltage sags, providing insights into wind turbine fault ride-through capability. The sags are assumed to be caused ...
  • Doubly fed induction generator subject to symmetrical voltage sags 

    Rolán Blanco, Alejandro; Córcoles López, Felipe; Pedra Durán, Joaquim (2011-12)
    Article
    Restricted access - publisher's policy
    The aim of this paper is to analyze the dynamic behavior of the doubly fed induction generator (DFIG) subject to symmetrical voltage sags caused by three-phase faults. A simple control algorithm is considered and assumed ...
  • On fixed-speed WT generator modeling for rotor speed stability studies 

    Pedra Durán, Joaquim; Córcoles López, Felipe; Monjo Mur, Lluís; Bogarra Rodríguez, Santiago; Rolán Blanco, Alejandro (2012-02)
    Article
    Restricted access - publisher's policy
    This paper analyzes fixed-speed induction generator modeling oriented to rotor speed stability studies. The single- and double-cage models are compared. The effects of symmetrical voltage sags on generator behavior are ...