Browsing by Subject "Energia elèctrica"

Now showing items 1-20 of 120

    • 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 ...

    • 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 ...

    • 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 ...

    • 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. ...

    • 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 ...

    • 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 ...

    • An Comparative Analysis of Load Demand Assessments for Mini Grids and Strategy Pro 

      Daglish, Jonathan (Universitat Politècnica de Catalunya, 2020-11-20)
      Master thesis
      Open Access
      Improving energy access through the provision of sustainable electrification is fundamental to reducing poverty and facilitating development in many areas of rural Sub Saharan Africa. The region currently suffers from ...

    • 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 ...

    • 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 ...

    • 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 ...

    • 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 ...