Enviaments recents

  • 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)
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    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 ...
  • 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)
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    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. ...
  • Frequency control of HVDC interconnected system considering derivative based inertia emulation 

    Rakhshani, Elyas; Mehrjerdi, Hasan; Remon, Daniel; Mir Cantarellas, Antonio; Rodríguez Cortés, Pedro (2016)
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    This paper proposes an new approach for modeling and analysis the dynamic effects of virtual inertia on two-area AC/DC interconnected AGC power systems. Inertia emulation is known as key factor for modern power systems. ...
  • Fair weather induced charges and currents on tall wind turbines and experiments with kites 

    López Trujillo, Jesús Alberto; Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Fabró Tàpia, Ferran; Romero Durán, David (Zakon Group, 2016)
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    Earth’s atmospheric potential rapidly increases up to few tens of kilovolts below 200 m altitude. This potential drop will induce charge to tall objects at ground by virtue of electrostatic induction. In this work we ...
  • First data of the Colombia Lightning Mapping Array - COLMA 

    López Trujillo, Jesús Alberto; Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Romero Durán, David; Aranguren Fino, Harby Daniel; Torres Sanchez, Horacio; Taborda, John; Martínez, Joaquin (Zakon Group, 2016)
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    The first data set of VHF lightning mapping using a Lightning Mapping Array system - LMA in a tropical region is presented in this paper. Six sensors were installed at the north of Colombia near Santa Marta city. Since ...
  • Autonomous inertia-sharing control of multi-terminal VSC-HVDC grids 

    Zhang, Weiyi; Rouzbehi, Kumars; Candela García, José Ignacio; Luna Alloza, Álvaro; Gharehpetian, Gevorg B.; Rodríguez Cortés, Pedro (2016)
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    Multi-terminal high-voltage dc (HVDC) grids are expected to experience a continuous expansion in the near future, and have appeared as competitive strategies in transmitting offshore wind and interconnecting multiple ac ...
  • Grid synchronization structure for wind converters under grid fault conditions 

    Garcia, Jose Ignacio; Candela García, José Ignacio; Luna Alloza, Álvaro; Catalan, Pedro (2016)
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    This paper presents a grid synchronization structure for three-phase electric power systems based on the use of a filtered quadrature signal generator (FQSG) and a phase-locked loop (PLL) structure, named Adaptive Vector ...
  • Smart grids for rural conditions and e-mobility - Applying power routers, batteries and virtual power plants 

    Boehner, Volker; Franz, P.; Hanson, J.; Gallart, R; Martínez, S.; Sumper, Andreas; Girbau-Llistuella, F. (2016)
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    Significant reductions of greenhouse gas emission by use of renewable energy sources belong to the common targets of the European Union. Smart grids address intelligent use and integration of conventional and renewable ...
  • Frequency and voltage partitioning in presence of renewable energy resources for power system (example: North Chile power network) 

    Mehrjerdi, H.; Al-Emadi, N. A.; Rakhshani, Elyas; Rodríguez Cortés, Pedro (2016)
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    This paper investigates techniques for frequency and voltage partitioning of power network based on the graph-theory. These methods divide the power system into distinguished regions to avoid the spread of disturbances and ...
  • Constrained-size torque maximization in SynRM machines by means of genetic algorithms 

    López Torres, Carlos; Sala Cardoso, Enric; García Espinosa, Antonio; Romeral Martínez, José Luis (2015)
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    Synchronous Reluctance Motors have always been an alternative to more mainstream machines such as the Permanent Magnet Synchronous Motor, but until recently they have not found their right place in industrial applications. ...

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