Now showing items 1-20 of 166

    • A 250-ps integrated ultra-wideband timed array beamforming receiver in 0.18 um CMOS 

      Aghazadeh Dafsari, Seyed Rasoul; Martínez García, Herminio; Aragonès Cervera, Xavier; Saberkari, Alireza (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference lecture
      Open Access
      This paper presents a 4-channel ultra-wideband (UWB) timed array beamforming receiver designed in a standard 0.18-um CMOS technology. The proposed timed array receiver achieves a maximum delay of 250 ps at the maximum beam ...
    • 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 novel deep learning-based diagnosis method applied to power quality disturbances 

      González Abreu, Artvin Darién; Delgado Prieto, Miquel; Osornio Rios, Roque A.; Saucedo Dorantes, Juan Jose; Romero Troncoso, René de Jesús (2021-05-02)
      Article
      Open Access
      Monitoring electrical power quality has become a priority in the industrial sector background: avoiding unwanted effects that affect the whole performance at industrial facilities is an aim. The lack of commercial equipment ...
    • A Review of Energy Management Systems and Organizational Structures of Prosumers 

      Mišljenovic, Nemanja; Žnidarec, Matej; Kneževic, Goran; Šljivac, Damir; Sumper, Andreas (2023-04-01)
      Article
      Open Access
      Thisreviewprovidesthestateoftheartofenergymanagementsystems(EMS)and organizationalstructuresofprosumers.Integrationofrenewableenergysources(RES)intothe householdbringsnewchallengesinoptimaloperation,powerquality,particip ...
    • A semi-analytical method for the design of coil-systems for homogeneous magnetostatic field generation 

      Azpúrua Auyanet, 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 simple and effective methodology for sizing electrical energy storage (EES) systems based on energy balance 

      Kichou, Sofiane; Markvart, Tomas; Wolf, Petr; Silvestre Bergés, Santiago; Chouder, Aissa (Elsevier, 2022-05)
      Article
      Restricted access - publisher's policy
      The use of the electrical energy storage (EES) plays an important role in the transition of energy generation towards renewable energy sources (RESs). An effective sizing of EES systems is very important in order to cope ...
    • 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 ...
    • Acceso a la electricidad y desarrollo rural 

      Nolasco Benitez, Edith; Gomis Bellmunt, Oriol (2021-10-01)
      Article
      Open Access
      El acceso a la electricidad influye significativamente en muchos aspectos de la sociedad y se reconoce su importancia en la vida cotidiana. OBJETIVO. Analizar la literatura sobre el acceso a la electricidad en zonas rurales, ...
    • 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 ...
    • Adaptive Volt-Var Control Algorithm to Grid Strength and PV Inverter Characteristics 

      Cantero, Toni; Colet Subirachs, Alba; Canals Casals, Lluc; Corchero García, Cristina; Domínguez García, José Luis; Álvarez de Sotomayor, Amelia; Martin, Williams; Stauffer, Yves; Alet, Pìère-Jean (2021-04-16)
      Article
      Open Access
      The high-penetration of Distributed Energy Resources (DER) in low voltage distribution grids, mainly photovoltaics (PV), might lead to overvoltage in the point of common coupling, thus, limiting the entrance of renewable ...
    • 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 ...
    • An electromagnetic vibration energy harvester based on ring magnets with Halbach configuration: numerical modeling 

      Kubicki, Constant (Universitat Politècnica de Catalunya, 2023-06-27)
      Bachelor thesis
      Open Access
      Covenantee:   Université de Lille
      The power supply of electronic equipments is one of the major problems, during the construction of new structures. To provide this power supply, the main answer today is by building an electric network. However, this will ...
    • Analysis of the evolution of the regulatory framework for self-consumption in Denmark 

      López Villanueva, Rubén (Universitat Politècnica de Catalunya, 2021-05-20)
      Bachelor thesis
      Restricted access - confidentiality agreement
    • Anàlisi d'autoconsum elèctric d'un complex d'habitatges, mitjançant energies renovables, a Sant Martí Vell 

      Gamero Vallejo, Maria (Universitat Politècnica de Catalunya, 2021-01-28)
      Bachelor thesis
      Restricted access - author's decision
      En aquest treball es desenvolupa el mètode per a l’estudi d’una instal•lació fotovoltaica d’autoconsum amb emmagatzematge per a abastir els consums elèctrics d’un complex d’habitatges a Sant Martí Vell. Es tracta d’una ...
    • Anàlisi i simulació d’autoconsum col•lectiu mitjançant els paràmetres de repartició proposats al Reial Decret 244/2019 

      Jené Jaume, Jordi (Universitat Politècnica de Catalunya, 2021-05-20)
      Bachelor thesis
      Open Access
      L’escalfament global i el canvi climàtic estan forçant als països a incentivar noves formes de consumir energia més sostenible i deixar enrere els combustibles fòssils. Seguint aquesta tendència l’estat espanyol va ...
    • 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 ...
    • Análisis estratégico del sector energético: España y Cataluña 

      Gómez Sánchez, Alberto (Universitat Politècnica de Catalunya, 2012-01-01)
      Master thesis
      Restricted access - author's decision
      En el proyecto se realiza un análisis estratégico del sistema energético de España y Cataluña mediante un análisis tipo DAFO (Debilidades, Amenazas, Fortalezas y Oportunidades). El objetivo del análisis es concretar las ...