Ara es mostren els items 60-67 de 67

    • Renewable energy operation and conversion schemes: a summary of discussions during the Seminar on Renewable Energy Systems 

      Zacharias, Peter; Teodorescu, Remus; Rodríguez Cortés, Pedro; Liserre, M.; Knapp, Wilfried; Spagnuolo, Giovanni; Petrone, Giovanni; Vasconcelos, Samuel; Carlo Cecati, Araújo; Friis-Madsen, Erik; Gubía, Eugenio; Hissel, Daniel; Jasinski, Marek (2010-03)
      Article
      Accés obert
      A short summary of some speeches given during Seminar on Renewable Energy system (SERENE) is presented. The contributions have been mainly focused on power electronics for photovoltaic (PV) and sea wave energies, pointing ...
    • Safe current injection strategies for a STATCOM under asymmetrical grid faults 

      Rodríguez Cortés, Pedro; Medeiros, G.; Luna Alloza, Álvaro; Cavalcanti, Marcelo C.; Teodorescu, Remus (2010)
      Text en actes de congrés
      Accés obert
      This paper explores different strategies to set the reference current of a STATCOM under unbalanced grid voltage conditions and determines the maximum deliverable reactive power in each case to guarantee the injected ...
    • Short circuit signatures from different wind turbine generator types 

      Martinez, J.; Kjaer, P. C.; Rodríguez Cortés, Pedro; Teodorescu, Remus (IEEE, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Modern wind power plants are required and designed to ride through faults in the network, subjected to the fault clearance and following grid code demands. Beside voltage support during faults, the wind turbine fault ...
    • Smart - STATCOM control strategy implementation in wind power plants 

      Sintamarean, Craiun; Cantarellas, A.; Miranda, Hernan; Rodríguez Cortés, Pedro; Teodorescu, Remus (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      High penetration of wind energy into the grid may introduce stability and power quality problems due to the fluctuating nature of the wind and the increasing complexity of the power system. By implementing advanced ...
    • Storage possibilities for enabling higher wind energy penetration 

      Swierczynski, M.; Teodorescu, Remus; Rasmunssen, C. N.; Rodríguez Cortés, Pedro; Vikelgaard, H. (2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      As the installed worldwide wind energy capacity increases about 30% annually and Kyoto protocol that came in force in 2005, wind penetration level in power system is considered to significantly increase in near future. Due ...
    • The PWM strategies of grid-connected distributed generation active NPC inverters 

      Ma, Lin; Kerekes, Tamas; Teodorescu, Remus; Jin, Xinmin; Liserre, M.; Rodríguez Cortés, Pedro (2009)
      Comunicació de congrés
      Accés obert
      The Neutral Point Clamped topology due to high efficiency, low leakage current and EMI, its integration is widely used in the distributed generation (DG) systems. However the main disadvantage of the NPC inverter is ...
    • Var reserve concept applied to a wind power plant 

      Martinez, J.; Kjaer, Philip Carne; Rodríguez Cortés, Pedro; Teodorescu, Remus (IEEE, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      wind power plants. This paper proposes two different VAr reserve control strategies for a wind power plant. The amount of dynamic VAr available most of the operation time, makes the wind power plant (WPP) a good candidate ...
    • Wind power plant control: an overview 

      Altin, Müfit; Teodorescu, Remus; Bak-Jensen, Birgitte; Rodríguez Cortés, Pedro; Iov, Florin; Kjaer, Philip Carne (2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Recent developments in wind turbine technology go towards installation of larger Wind Power Plants (WPPs). Therefore, power system operators have been challenged by the WPP penetration impacts in order to maintain reliabillity ...