Enviaments recents

  • Active power control in a hybrid PV-storage power plant for frequency support 

    Bullich Massagué, Eduard; Aragüés Peñalba, Mònica; Sumper, Andreas; Boix Aragonès, Oriol (2017-03)
    Article
    Accés restringit per política de l'editorial
    The recent increase of intermittent power generation plants connected to the electric power grids may stress the operation of power systems. So, grid codes started considering these power plants should con- tribute to the ...
  • Impact of the DC cable models on the SVD analysis of a multi-terminal HVDC system 

    Akkari, Samy; Prieto-Araujo, E.; Jing, Dai; Gomis Bellmunt, Oriol; Guillaud, Xavier (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés obert
    High Voltage Direct Current (HVDC) grids are complex Multi-Inputs Multi-Outputs (MIMO) systems whose dynamics are difficult to assess. This paper first describes the modelling of VSC-based Multi-Terminal HVDC systems (MTDC) ...
  • Electrical resonance instability study in wind power plants 

    Sainz Sapera, Luis; Mesas García, Juan José; Monjo Mur, Lluís; Pedra Durán, Joaquim; Cheah Mañé, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Wind power plant stability can be affected by the interaction between the wind turbine and the resonances in the collector grid. This paper presents an electrical resonance instability study applied to wind power plants. The ...
  • Unified reference controller for flexible primary control and inertia sharing in multi-terminal voltage source converter-HVDC grids 

    Rouzbehi, Kumars; Zhang, Weiyi; Candela García, José Ignacio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2016-10-11)
    Article
    Accés obert
    Multi-terminal dc (MTDC) grids are expected to be built and experience rapid expansion in the near future as they have emerged as a competitive solution for transmitting offshore wind generation and overlaying their ac ...
  • Multiterminal DC grids: operating analogies to AC power systems 

    Rouzbehi, Kumars; Candela García, José Ignacio; Gharehpetian, Gevorg B.; Harnefors, Lennart; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2016-12-06)
    Article
    Accés restringit per política de l'editorial
    Nowadays, some Multi-terminal DC (MTDC) systems are in operation around the world. Soon, MTDC grids will be built and overlay the present AC grids. The main driver for the construction of such a grid is to facilitate ...
  • Electrical resonance instability study in traction systems 

    Sainz Sapera, Luis; Monjo Mur, Lluís; Mesas García, Juan José; Pedra Durán, Joaquim; Cheah Mañé, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Traction system stability can be affected by the interaction between the traction load and resonances in the railway traction grid. This paper presents an electrical resonance instability study applied to traction systems. ...
  • Study of resonances in 1 x 25 kV AC traction systems with external balancing equipment 

    Mesbahi, Nadhir; Monjo Mur, Lluís; Sainz Sapera, Luis (2016-10-01)
    Article
    Accés obert
    AC traction systems are 1 × 25 or 2 × 25 kV/50 Hz single-phase, nonlinear, time-varying loads that can cause power-quality problems, such as unbalanced or distorted voltages. To reduce unbalance, external balancing equipment ...
  • Derivative based inertia emulation of interconnected systems considering phase-locked loop dynamics 

    Rakhshani, Elyas; Remon, Daniel; Mir Cantarellas, Antonio; Mehrjerdi, H.; Rodríguez Cortés, Pedro (2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Recent trend of research is oriented in different methods of emulating the inertia to increase the sustainability of the system. In the case of dynamic performance of power systems especially in frequency control of ...
  • Centralized protection strategy for medium voltage DC microgrids 

    Monadi, Mehdi; Gavriluta, Catalin; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2016-08-15)
    Article
    Accés obert
    This paper presents a centralized protection strategy for medium voltage dc (MVDC) microgrids. The proposed strategy consists of a communication-assisted fault detection method with a centralized protection coordinator and ...
  • Characteristics of lightning flashes generating sprites above storms (i-DUST) 

    Soula, Serge; Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Fullekrug, Martin; Mezentsev, Andrew; Mlynarczyk, Janusz (EDP Sciences, 2016)
    Text en actes de congrés
    Accés obert
    Sprites are Transient Luminous Events (TLEs) that can extend vertically from 40 to 90 km and horizontally over several tens of km to form clusters of individual or multiple column or/and carrot-shaped luminous elements. ...

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