Now showing items 1-12 of 97

    • Assessment of the impact of electric vehicles on iberian day-ahead electricity market 

      Olivella Rosell, Pol; Bosch Llufriu, Guillermo Ángel; Villafafila Robles, Roberto; Heredero Peris, Daniel; Kovacevic, Mario (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Open Access
      Electric vehicles (EVs) could become a controllable grid load by using demand side management techniques, but this requires an information and communications technology (ICT) infrastructure and aggregator agents, to ...
    • Charging/discharging process for electric vehicles: proposal and emulation 

      Barnola Sampera, Miquel; Heredero Peris, Daniel; Villafafila Robles, Roberto; Montesinos Miracle, Daniel; Bergas Jané, Joan Gabriel; Vidal Tejedor, Narcís (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Open Access
      This paper proposes a charging/discharging process for electric vehicles according to mode 4, specifically based on the CHAdeMO protocol. These initiatives will enable acceptably fast charging of EVs. The proposal has been ...
    • Arquitectura de una red inteligente rural 

      Girbau Llistuella, Francesc; Sumper, Andreas; Díaz González, Francisco; Sudrià Andreu, Antoni; Castro Cervera, Fernando; Gallart Fernández, Ramon (2015)
      Conference lecture
      Open Access
      El trabajo presentado se enmarca en e l proyecto europeo del programa FP - 7 Smart Rural Grid que tiene como objetivo desarrollar la red rural inteligente y explorar las mejores maneras de hacer la transición de las actuales ...
    • Optimal sizing and location of reactive power compensation in offshore HVAC transmission systems for loss minimization 

      Dakic, Jovana; Cheah Mañé, Marc; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (2019)
      Conference lecture
      Open Access
    • Modelling VSCs connected to weak grids 

      Orellana Montaño, Luis Carlos; Prieto Araujo, Eduardo; Sainz Sapera, Luis; Cheah Mañé, Marc; Gomis Bellmunt, Oriol (2019)
      Conference report
      Restricted access - publisher's policy
      This paper addresses the oscillatory stability phenomena studied in the literature and reported by network operators in grid-connected VSC systems. Negative interactions have been observed at different frequencies in these ...
    • Study of optimization design criteria for stand-alone hybrid renewable power systems 

      Martínez Díaz, Maria del Mar; Villafafila Robles, Roberto; Montesinos Miracle, Daniel; Sudrià Andreu, Antoni (2013)
      Conference lecture
      Open Access
      Hybrid renewable power systems integrate two or more sources of energy, one of which is renewable, optionally a storage system and typically work in stand-alone mode. They are being considered more and more and we should ...
    • Short-term energy storage for power quality improvement in weak MV grids with distributed renewable generation 

      Díaz González, Francisco; del Rosario Calaf, Gerard; Girbau Llistuella, Francesc; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference lecture
      Open Access
      The intermittent and stochastic nature of renewable energy sources impose several challenges for the operation of electrical networks, and affect power quality levels as well. This paper addresses one of the issues associated ...
    • Interaction analysis in islanded power systems with HVDC interconnections 

      Collados Rodríguez, Carlos; Prieto Araujo, Eduardo; Cheah Mañé, Marc; Ferrer San José, Ricard; Gomis Bellmunt, Oriol; Sanz, Silvia; Longás, Carmen; Cordón, Antonio; Coronado, Luis (2018)
      Conference lecture
      Open Access
    • Stability and interaction analysis in islanded power systems including VSC-HVDC and LCC-HVDC power converters 

      Collados Rodríguez, Carlos; Cheah Mañé, Marc; Prieto Araujo, Eduardo; Ferrer San José, Ricard; Sánchez Sánchez, Enric; Gomis Bellmunt, Oriol; Sanz, Silvia; Longás, Carmen; Cordón, Antonio; Coronado, Luis (2018)
      Conference lecture
      Restricted access - publisher's policy
      Islanded power systems are often connected to larger mainland power systems using HVDC cables. These interconnections are used to import power at lower cost compared to local generation and improve the security of supply. ...
    • Evaluation of a state observer for frequency estimation in a grid tied photovoltaic inverter 

      Cabrera Tobar, Ana; Gomis Bellmunt, Oriol; Carrasco, Juan A.; Barnes, Mike (2018)
      Conference report
      Restricted access - publisher's policy
      Ahstract-A phase locked loop (PLL) is commonly used to measure the electrical frequency deviations in PV grid tied inverters. However, this control is affected by sudden changes of power that usually happens with this type ...
    • Effect of variable solar irradiance on the reactive power response of photovoltaic Generators 

      Cabrera Tobar, Ana; Aragüés Peñalba, Mònica; Gomis Bellmunt, Oriol (2018)
      Conference report
      Restricted access - publisher's policy
      New grid requirements for large scale photovoltaic power plants (LS-PVPPs) demanding ancillary services make necessary the enhancement of photovoltaic (PV) generator's control. One of the challenges is the reactive power ...
    • Dynamic modelling and control of a PV generator for large scale applications 

      Cabrera Tobar, Ana; Aragüés Peñalba, Mònica; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      As large scale photovoltaic power plants are increasing their capacity, the new grid codes are requiring that these power plants have similar performance as conventional power plants do. Because of this, it is essential ...