• Biomass gasification for off-grid electrification of South-Saharan Africa 

    Depoorter Ruelle, Víctor; Olivella Rosell, Pol; Giral Guardia, Jordi; Lladó Jaume, Àngel; Sudrià Andreu, Antoni; Villafafila Robles, Roberto (2013)
    Comunicación de congreso
    Acceso restringido por política de la editorial
    The NGO Misión y Desarrollo para Goundi, with the collaboration of the technology transfer centre CITCEA-UPC and the support of the CCD-UPC, is carrying out since 2011 the project Pôle Goundi aiming to electrify Goundi, a ...
  • Day-ahead micro-market design for distributed energy resources 

    Olivella Rosell, Pol; Viñals Canal, Guillem; Sumper, Andreas; Villafafila Robles, Roberto; Bremdal, Bernt; Ilieva, Iliana; Ottesen, Stig Odegaard (2016)
    Texto en actas de congreso
    Acceso abierto
  • Deterministic and Probabilistic Assessment of the Impact of the Electrical Vehicles on the Power Grid 

    Valsera Naranjo, Eduardo; Sumper, Andreas; Lloret Gallego, Pau; Villafafila Robles, Roberto; Sudrià Andreu, Antoni (2010-03-23)
    Texto en actas de congreso
    Acceso abierto
    This paper analyzes the impact of the charge of EVs(Electrical Vehicles) on a power grid. In order to simulate the behavior of the EV charging on the grid a model of its battery has been found (EV’s charging curve). As the ...
  • Electromechanical modelling and control of a micro-wind generation system for isolated low power DC micro grids 

    Colet Subirachs, Alba; Gomis Bellmunt, Oriol; Clos Costa, Daniel; Martín Segura, Guillermo; Junyent Ferré, Adrià; Villafafila Robles, Roberto; Villafafila Robles, Roberto; Ferrer Martí, Laia (2010-06-01)
    Artículo
    Acceso abierto
    This paper describes the modelling and control of a micro-wind generation system, based on an axial flux permanent magnet synchronous generator (PMSG), for isolated low power DC micro grids. The system consists of a ...
  • Energy efficiency for low-income households 

    Ugarte, Sergio; van der Ree, Bart; Voogt, Monique; Eichhammer, Wolfgang; Ordoñez, José Antonio; Reuter, Matthias; Schlomann, Barbara; Lloret Gallego, Pau; Villafafila Robles, Roberto (2016-11)
    Report de recerca
    Acceso abierto
    This study analyses the impacts that energy efficiency has on low-income households; to what degree energy efficiency policies should specifically target low-income households; and in which circumstances they should be ...
  • Experimental validation of a single phase Intelligent Power Router 

    Rodriguez Bernuz, Joan Marc; Prieto Araujo, Eduardo; Girbau Llistuella, Francesc; Sumper, Andreas; Villafafila Robles, Roberto; Vidal Clos, Josep-Andreu (2015-12)
    Artículo
    Acceso restringido por política de la editorial
    Current power networks are facing numerous challenges in transmission and distribution in order to accommodate distributed generation from renewables. As a result, the current grid needs to evolve towards a system with ...
  • Impedance measurement and detection frequency bandwidth, a valid island detection proposal for voltage controlled inverters 

    Llonch Masachs, Marc; Heredero Peris, Daniel; Chillón Antón, Cristian; Montesinos Miracle, Daniel; Villafafila Robles, Roberto (Multidisciplinary Digital Publishing Institute, 2019-03-18)
    Artículo
    Acceso abierto
    Anti-islanding detection methods have been part of a secure operation for distributed energy resource inverters, avoiding the creation of non-intentional energization when the mains are lost. These detection mechanisms ...
  • Laboratori remot de proteccions elèctriques 

    Villafafila Robles, Roberto (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2012-02-07)
    Comunicación de congreso / Texto en actas de congreso
    Acceso abierto
  • Local flexibility market design for aggregators providing multiple flexibility services at distribution network level 

    Olivella Rosell, Pol; Lloret Gallego, Pau; Villafafila Robles, Roberto; Sumper, Andreas; Ottesen, Stig Odegaard; Rajasekharan, Jayaprakash; Bremdal, Bernt (2018-04-02)
    Artículo
    Acceso abierto
    This paper presents a general description of local flexibility markets as a market-based management mechanism for aggregators. The high penetration of distributed energy resources introduces new flexibility services like ...
  • Microrred de laboratorio para la emulación de recursos energéticos distribuidos 

    Vinyals Canal, Guillem; Vidal Clos, Josep Andreu; Clariana Colet, Gerard; Prieto Araujo, Eduardo; Villafafila Robles, Roberto; Gomis Bellmunt, Oriol; Sudrià Andreu, Antoni (2014)
    Comunicación de congreso
    Acceso abierto
    A continuación se describe el desarrollo de una microrred de laboratorio que permite desarrollar una gran variedad de experimentos relacionados con la integración de recursos energéticos distribuidos en la red eléctrica. ...
  • Modeling and validation of a flywheel energy storage lab-setup 

    Díaz González, Francisco; Sumper, Andreas; Gomis Bellmunt, Oriol; Villafafila Robles, Roberto (2012)
    Texto en actas de congreso
    Acceso abierto
    This work deals with the modeling, control and experimental validation of a flywheel test bench which is part of IREC’s lab-scale microgrid. The storage device has been designed as a proof of concept. It is based on a ...
  • Optimization of surge arrester locations in overhead distribution networks 

    Bullich Massagué, Eduard; Sumper, Andreas; Villafafila Robles, Roberto; Rull Duran, Joan (2015-04-01)
    Artículo
    Acceso abierto
    Lightning is considered one of the main causes of faults in overhead distribution networks. Direct strokes usually lead to flashovers due to the insulation levels that are used. Induced overvoltages caused by indirect ...
  • Optimization problem for meeting distribution system operator requests in local flexibility markets with distributed energy resources 

    Olivella Rosell, Pol; Bullich Massagué, Eduard; Aragüés Peñalba, Mònica; Sumper, Andreas; Ottesen, Stig Odegaard; Vidal Clos, Josep Andreu; Villafafila Robles, Roberto (2018-01-15)
    Artículo
    Acceso restringido por política de la editorial
    The increasing penetration of distributed energy resources in the distribution grid is producing an ever-heightening interest in the use of the flexibility on offer by said distributed resources as an enhancement for the ...
  • Pareto optimal reconfiguration of power distribution systems using a genetic algorithm based on NSGA-II 

    Tomoiaga, Bogdan; Chindris, Mircea; Sumper, Andreas; Sudrià Andreu, Antoni; Villafafila Robles, Roberto (2013-03-06)
    Artículo
    Acceso abierto
    Reconfiguration, by exchanging the functional links between the elements of the system, represents one of the most important measures which can improve the operational performance of a distribution system. The authors ...
  • Performance of fixed speed wind turbines under system frequency deviations 

    Sumper, Andreas; Gomis Bellmunt, Oriol; Sudrià Andreu, Antoni; Villafafila Robles, Roberto; Rull Duran, Joan (2010-04)
    Comunicación de congreso
    Acceso abierto
    This paper studies the impact of system frequency deviations on the operation of fixed speed induction generators used in wind turbine generation systems(WTGS). It presents an analytic method to predict the angular speed, ...
  • Probabilistic agent-based model of electric vehicle charging demand to analyse the impact on distribution networks 

    Olivella Rosell, Pol; Villafafila Robles, Roberto; Sumper, Andreas; Bergas Jané, Joan Gabriel (2015-05-11)
    Artículo
    Acceso abierto
    Electric Vehicles (EVs) have seen significant growth in sales recently and it is not clear how power systems will support the charging of a great number of vehicles. This paper proposes a methodology which allows the ...
  • Probabilistic method to assess the impact of charging of electric vehicles on distribution grids 

    Valsera Naranjo, Eduardo; Sumper, Andreas; Villafafila Robles, Roberto; Martínez Vicente, David (2012-05-18)
    Artículo
    Acceso abierto
    This paper describes a grid impact analysis of charging electric vehicles (EV) using charging curves with detailed battery modelling. A probabilistic method using Monte Carlo was applied to a typical Spanish distribution ...
  • Propuesta metodológica para la evaluación e instalación de Sistemas de Alimentación Ininterrumpida (SAIs) de gran potencia 

    Villafafila Robles, Roberto (Universitat Politècnica de Catalunya, 2004-12)
    Proyecto/Trabajo final de carrera
    Acceso abierto
  • Renewable energy emulation concepts for microgrids 

    Prieto Araujo, Eduardo; Olivella Rosell, Pol; Cheah Mañé, Marc; Villafafila Robles, Roberto; Gomis Bellmunt, Oriol (2015-10-01)
    Artículo
    Acceso abierto
    This paper reviews the renewable energy systems emulators proposals for microgrid laboratory testing platforms. Four emulation conceptual levels are identified based on the literature analysis performed. Each of these ...
  • Software Tool for the Analysis of Electromagnetic Disturbances Propagation 

    Chindris, Mircea; Cziker, Andrei; Sumper, Andreas; Miron, Anca; Sudrià Andreu, Antoni; Villafafila Robles, Roberto (2010-03-23)
    Texto en actas de congreso
    Acceso abierto
    The analysis of the conducted electromagnetic disturbances propagation is a complex issue, involving detection and analysis of electromagnetic disturbances, modelling of power grids’ elements, and study of the influenceon ...