Browsing by Subject "Energia elèctrica"

Now showing items 1-20 of 113

  • A case of winter lightning initiation from a tall structure in the Basque Country 

    López, Javier; Montañá Puig, Juan; Maruri, M.; Aranda, José Antonio; Gaztelumendi, S. (2010)
    Conference lecture
    Restricted access - author's decision
    Lightning research is usually focused on the most active months of the year, those corresponding to the summer season. These thunderstorms produce most of the lightning records during a year in the Basque Country, and ...

  • Adaptive droop for primary control in MTDC networks with energy storage 

    Gavriluta, Catalin; Candela García, José Ignacio; Luna Alloza, Álvaro; Rocabert Delgado, Joan; Rodríguez Cortés, Pedro (2013)
    Conference lecture
    Restricted access - publisher's policy
    Multi-terminal DC (MTDC) systems are drawing a lot of interest lately in applications related to distributed generation, especially in those that integrate wind or PV systems together with energy storage. This paper proposes ...

  • A device for improving the immunity of AC contactor during voltage dips 

    Andrada Gascón, Pedro; Perat Benavides, Josep Ignasi; Navarro, Gustavo (2008-03)
    Article
    Open Access
    This paper describes an electronic device that enables AC contactors to ride through power quality dsturbances. The proposed device is connected to the contactor coil and consists of a power conversion excitation and hold-in ...

  • Análisis del sector eléctrico en España y el uso de las TIC 

    Dolz Bautista, Carlos María (Universitat Politècnica de Catalunya, 2013-07-18)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    El sector elèctric a Espanya està dividit en quatre activitats: la de generació d'energia, transport, distribució i la de comercializació. Cadascuna d'aquestes activitats té la seva funció definida i regulada per l'administració ...

  • A novel approach for voltage control of multi-terminal DC grids with offshore wind farms 

    Rouzbehi, Kumars; Miranian, Arash; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2013)
    Conference lecture
    Restricted access - publisher's policy
    This paper proposes a novel control strategy in multi-terminal DC (MTDC) grids with offshore wind generation based on the idea of generalized voltage droop (GVD). In the proposed strategy, the GVD characteristics are ...

  • Aplicaciones eléctricas del acrilonitrilo butadieno estireno (ABS) reforzado con neumáticos fuera de uso (GTR) 

    Mujal-Rosas, Ramon Maria; Orrit Prat, Jordi; Ramis Juan, Xavier; Marín Genescá, Marcos (2012-06)
    Article
    Restricted access - publisher's policy

  • Aportació a la gestió energètica amb energies renovables 

    Almenar Molina, Irene; Rodríguez Font, Carles (Universitat Politècnica de Catalunya, 2015-05-05)
    Bachelor thesis
    Restricted access - confidentiality agreement

  • Aportación a la distribución de energía eléctrica. Aportación al sector eléctrico español 

    Macià Capell, Maria (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2016-02)
    Master thesis
    Restricted access - author's decision
    El presente proyecto pretende proporcionar una visión global del marco normativo del Sistema Eléctrico Español, a través de la revisión de la evolución de la Ley del Sector Eléctrico desde el inicio del proceso de ...

  • Aportación al estudio de instalaciones de autoconsumo de energía eléctrica 

    Segura Dávila, Daniel (Universitat Politècnica de Catalunya, 2016-10-11)
    Bachelor thesis
    Restricted access - author's decision
    El passat mes d'octubre del 2015 es va aprovar, sense consens tècnic ni polític, el Reial Decret 900/2015, el qual regula per primera vegada les condicions tècniques i econòmiques de les modalitats de subministre d'energia ...

  • Application of imperialist competitive algorithm to design an optimal controller for LFC problem 

    Rakhshani, Elyas; Luna Alloza, Álvaro; Rouzbehi, Kumars; Rodríguez Cortés, Pedro (2012)
    Conference report
    Restricted access - publisher's policy
    A novel optimization algorithm is presented to improve the design of optimal controllers for load frequency control problem. This algorithm is applied for two area LFC system with using an output feedback controller. In ...

  • Arc tracking control in insulation systems for aeronautic applications: challenges, opportunities, and research needs 

    Riba Ruiz, Jordi-Roger; Gómez Pau, Álvaro; Moreno Eguilaz, Juan Manuel; Bogarra Rodríguez, Santiago (Multidisciplinary Digital Publishing Institute (MDPI), 2020-03-16)
    Article
    Open Access
    Next generation aircrafts will use more electrical power to reduce weight, fuel consumption, system complexity and greenhouse gas emissions. However, new failure modes and challenges arise related to the required voltage ...

  • A semi-analytical method for the design of coil-systems for homogeneous magnetostatic field generation 

    Azpúrua Auyanet, Barón Marco Aurelio (2012)
    Article
    Restricted access - publisher's policy
    This paper proposes a simple semi-analytical method for designing coil-systems for homogeneous magnetostatic field generation. The homogeneity of the magnetic field and the average magnitude of the magnetic flux density ...

  • A service-constrained positioning strategy for an autonomous fleet of airborne base stations 

    José Torra, Ferran (Universitat Politècnica de Catalunya, 2017-07)
    Master thesis
    Open Access
    This thesis proposes a positioning strategy for a fleet of unmanned aerial vehicles (UAVs) airlifting wireless base stations. First, two schedulers that model the distribution of resources within a single cell are analyzed. ...

  • Assisting passive anti-islanding proposal for Voltage-Controlled Voltage-Source-Inverters 

    Chillón Antón, Cristian; Llonch Masachs, Marc; Heredero Peris, Daniel; Pagès Giménez, Marc; Montesinos Miracle, Daniel (2018)
    Conference lecture
    Restricted access - publisher's policy
    Loss of mains detection strategies based on voltage and frequency displacements, passive or active, have been widely applied and conventionally thought for current controlled voltage source inverters. Its effectiveness is ...

  • A three-phase hybrid filter for medium voltage applications using an H-bridge 

    Candela García, José Ignacio; Rodríguez Cortés, Pedro; Nisak, Khairul; Rauma, Kalle; Hermoso Costa, Juan Ramón; Etxeberria, Ion (2011)
    Conference report
    Restricted access - publisher's policy
    This paper presents a new solution for filtering current harmonics in three-phase thee-wire medium voltage networks. The hybrid filter topology presented in this paper is characterized by the use of an HBridge instead ...

  • Auditoria energètica i propostes en el sector de la restauració 

    Fitó Pintado, Jofre (Universitat Politècnica de Catalunya, 2019-01-21)
    Bachelor thesis
    Restricted access - author's decision
    Aquest projecte té com a finalitat fer una auditoria energètica d’un local dedicat en el sector de la restauració. Per aquest motiu reuniré informació i dades d’una empresa (maquinaria, factures, subministraments contractats, ...

  • Behaviour of the doubly fed induction generator exposed to unsymmetrical voltage sags 

    Rolán Blanco, Alejandro; Córcoles López, Felipe; Pedra Durán, Joaquim (2012-09)
    Article
    Restricted access - publisher's policy
    This study analyses the dynamic behaviour of the doubly fed induction generator exposed to unsymmetrical voltage sags, providing insights into wind turbine fault ride-through capability. The sags are assumed to be caused ...

  • Centrales electricas minihidraulicas: aplicacion en una zona rural subdesarrollada 

    Castellano, Jaime; Torrent Burgués, Marcel (2009-07)
    Article
    Open Access
    La implementación de microcentrales hidroeléctricas en zonas subdesarrolladas permite acceder a la energía eléctrica a comunidades rurales, cuando las dificultades para disponer del suministro a partir de las líneas ...

  • Cogeneración para suministro de agua y electricidad 

    Cabrer Vidal, Margalida (Universitat Politècnica de Catalunya, 2015-10-14)
    Bachelor thesis
    Restricted access - author's decision
    El present projecte pretén estudiar la viabilitat tècnica i econòmica del subministrament d'energia tèrmica i elèctrica generada per una central de cogeneració i calderes de gas per a un hotel, definint i valorant totes ...

  • Comparison of global RHESSI and AGILE TGFs distributions and analysis of all AGILE satellite passes over South America. 2009-2012 period 

    Fabró Tàpia, Ferran; Montañá Puig, Juan; Marisaldi, Martino (2014)
    Conference report
    Open Access
    RHESSI and AGILE TGFs distributions in the period 2009-2012 are compared. Analysis of differences in geographical, hourly, monthly distributions of the three main TGF production regions in Earth due to differences in ...