Ara es mostren els items 33-52 de 67

    • FACTS Devices for large wind power plants 

      Adamczyk, A.; Teodorescu, Remus; Mukerjee, R. N.; Rodríguez Cortés, Pedro (2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Growing number of wind turbines is changing electricity generation profile all over the world. However, high wind energy penetration affects power system safety and stability. For this reason transmission system operators ...
    • 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 filter design for a multi-megawatt medium-voltage voltage source inverter 

      Rockhill, A.A.; Liserre, M.; Teodorescu, Remus; Rodríguez Cortés, Pedro (IEEE Press. Institute of Electrical and Electronics Engineers, 2010-10-14)
      Article
      Accés obert
      This paper describes the design procedure and performance of an LCL grid filter for a medium-voltage neutral point clamped (NPC) converter to be adopted for a multimegawatt wind turbine. The unique filter design challenges ...
    • Grid synchronization for advanced power processing and FACTS in wind power systems 

      Luna Alloza, Álvaro; Rocabert Delgado, Joan; Vázquez Guzmán, Gerardo; Rodríguez Cortés, Pedro; Teodorescu, Remus; Córcoles López, Felipe (2010)
      Text en actes de congrés
      Accés obert
      The high penetration of wind power systems in the electrical network has introduced new issues in the stability and transient operation of the grid. By means of providing advanced functionalities to the existing power ...
    • Grid voltage synchronization for distributed generation systems under grid fault conditions 

      Luna Alloza, Álvaro; Rocabert Delgado, Joan; Candela García, José Ignacio; Hermoso Costa, Juan Ramón; Teodorescu, Remus; Blaabjerg, Frede; Rodríguez Cortés, Pedro (2015-07-01)
      Article
      Accés obert
      The actual grid code requirements for the grid connection of distributed generation systems, mainly wind and photovoltaic (PV) systems, are becoming very demanding. The transmission system operators (TSOs) are especially ...
    • Guest Editorial 

      Teodorescu, Remus; Sauter, Thilo; Rodríguez Cortés, Pedro; Rodriguez, José; Palensky, Peter; Nasiri, Adel; Kupzog, Friederich; Liserre, M.; Balcells Sendra, Josep; Basso, Thomas; Bialasiewicz, Jan T.; Cecati, Carlo; Chakraborty, Sudipta; Guerrero Zapata, Josep Maria; Kazerani, Mehrdad (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
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      Accés obert
    • Lifetime investigations of a lithium iron phosphate (LFP) battery system connected to a wind turbine for forecast improvement and output power gradient reduction 

      Swierczynski, M.; Teodorescu, Remus; Rodríguez Cortés, Pedro (2011)
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      Accés obert
      Lithium Ion batteries and especially Lithium Iron Phosphate (LFP) batteries can be characterized by high power densities, relatively long life-time, no maintenance and a lot of research currently being done on increasing ...
    • Lithium ion batteries ageing analysis when used in a PV power plant 

      Beltran, H.; Swierczynski, M.; Aparicio, N.; Belenguer, E.; Teodorescu, Remus; Rodríguez Cortés, Pedro (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper analyzes the integration of lithium ion (Li-ion) batteries into large scale grid-connected PV plants. It performs a systematic analysis on both the operation improvement obtained by a PV+ES power plant and the ...
    • Local reactive power control methods for overvoltage prevention of distributed solar inverters in low-voltage grids 

      Demirok, Erhan; Casado Gonzalez, P.; Frederiksen, K.H.B.; Sera, Dezso; Rodríguez Cortés, Pedro; Teodorescu, Remus (2011-12-27)
      Article
      Accés restringit per política de l'editorial
      The main objective of this study is to increase the penetration level of photovoltaic (PV) power production in low-voltage (LV) grids by means of solar inverters with reactive power control capability. This paper ...
    • Medium voltage three-level converters for the grid connection of a multi-MW wind turbine 

      Senturk, Osman S.; Helle, Lars; Munk-Nielsen, Stig; Rodríguez Cortés, Pedro; Teodorescu, Remus (2009)
      Comunicació de congrés
      Accés obert
      Three-level (3L) neutral point clamped (NPC), flying capacitor (FC), and H-bridge (HB) voltage source converters (VSCs) as a grid-side full-scale medium voltage (MV) converter are modeled, controlled, and simulated for ...
    • Microgrid connection management based on an intelligent connection agent 

      Rocabert Delgado, Joan; Azevedo, Gustavo; Candela García, José Ignacio; Teodorescu, Remus; Rodríguez Cortés, Pedro; Etxeberria Otadui, Ion (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
      Text en actes de congrés
      Accés obert
      The increasing penetration of generation power plants based on renewable energies in the electrical networks has boosted the number of systems connected to the grid. In this scenario the microgrid, providing advanced ...
    • Model predictive current control for high-power grid-connected converters with output LCL filter 

      Miranda, Hernan; Teodorescu, Remus; Rodríguez Cortés, Pedro; Helle, Lars (2009)
      Text en actes de congrés
      Accés obert
      A model predictive control strategy for a highpower, grid connected 3-level neutral clamped point converter is presented. Power losses constraints set a limit on commutation losses so reduced switching frequency is ...
    • Modeling, analysis, and design of stationary reference frame droop controlled parallel three-phase voltage source inverters 

      Vásquez Quintero, Juan Carlos; Guerrero Zapata, Josep Maria; Savaghevi, Mehdi; Teodorescu, Remus (IEEE, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Power electronics based microgrids consist of a number of voltage source inverters (VSIs) operating in parallel. In this paper, the modeling, control design, and stability analysis of three-phase VSIs are derived. The ...
    • Modelling and simulation of VSC-HVDC connection for offshore wind power plants 

      Chaudhary, S. K.; Teodorescu, Remus; Rodríguez Cortés, Pedro; Kjaer, P. C.; Christensen, P.W. (2010)
      Text en actes de congrés
      Accés obert
      Several large offshore wind power plants (WPP) are planned in the seas around Europe. VSC-HVDC is a suitable means of integrating such large and distant offshore WPP which need long submarine cable transmission to the ...
    • Multi-resonant frequency-locked loop for grid synchronization of power converters under distorted grid conditions 

      Rodríguez Cortés, Pedro; Luna Alloza, Álvaro; Candela García, José Ignacio; Mujal-Rosas, Ramon Maria; Teodorescu, Remus; Blaabjerg, F. (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-01)
      Article
      Accés obert
      This paper presents a new multiresonant frequencyadaptive synchronization method for grid-connected power converters that allows estimating not only the positive- and negative-sequence components of the power signal at ...
    • Multilink DC transmission for offshore wind power integration 

      Craciun, Bogdan-Ionut; da Silva, Rodrigo; Teodorescu, Remus; Rodríguez Cortés, Pedro (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The High Voltage Direct Current (HVDC) system gains much more flexibility on a basis of multi terminal operation. Having extra converters brings also new ideas in sharing the active power and one of the solutions is the ...
    • Multilink DC transmission systems for supergrid future concepts and wind power integration 

      da Silva, Rodrigo; Teodorescu, Remus; Rodríguez Cortés, Pedro (Curran, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A possible methodology for the power sharing is based on DC voltage droop control at onshore station converters. The aim is to present an evaluation tool for the droop control parameter description in support of DC power ...
    • 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 ...
    • Overview of FACTS devices for wind power plants directly connected to the transmission network 

      Adamczyk, A.; Teodorescu, Remus; Mukerjee, R. N.; Rodríguez Cortés, Pedro (2010)
      Text en actes de congrés
      Accés obert
      In this paper state-of-the-art in FACTS for WPPs with AC connection is given. FACTS devices with their properties are described. HVDC, which in literature is also often recognized as FACTS device, is out of this paper ...
    • Overview of recent grid codes for wind power integration 

      Altin, M.; Goksu, O.; Teodorescu, Remus; Rodríguez Cortés, Pedro; Bak-Jensen, Birgitte; Helle, L. (2010)
      Text en actes de congrés
      Accés obert
      As wind power penetration level increases, power system operators are challenged by the penetration impacts to maintain reliability and stability of power system. Therefore, grid codes are being published and continuously ...