Now showing items 1-20 of 93

    • 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
      Restricted access - publisher's policy
      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 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 Solid State Transformer model for power flow calculations 

      Guerra Sánchez, Luis Gerardo; Martínez Velasco, Juan Antonio (2017-07-01)
      Article
      Open Access
      This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional ...
    • 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 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 ...
    • Analysis and simulation of a thermoelectric system for a lunar application 

      Serra Bertran, Pol (Universitat Politècnica de Catalunya, 2018-07-19)
      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 ...
    • 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 ...
    • 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 ...
    • 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, ...
    • Catalonia (Spain) railway traction DC system project to limit lightning transient overvoltage 

      Hermoso Alameda, Blas; Montañá Puig, Juan; Garnacho, F; Carmona, M; Segovia, E (2010)
      Conference lecture
      Restricted access - author's decision
      Due to a lightning storm, during the last August 2007, the Catalonia Railway Electrical System (Spain) was victim of several disturbances and malfunctions. To give response to these problems a project has been established ...
    • 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 ...
    • Construcción de una fuente de alimentación 

      López Marfil, Sergio (Universitat Politècnica de Catalunya, 2011)
      Master thesis (pre-Bologna period)
      Restricted access - confidentiality agreement
    • Control of STATCOM in wind power plants based on induction generators during asymmetrical grid faults 

      Rodríguez Cortés, Pedro; Luna Alloza, Álvaro; Medeiros, G.; Teodorescu, Remus; Blaabjerg, F. (2010)
      Conference report
      Open Access
      This paper explores different strategies to set the reference current of a STATCOM under unbalanced grid voltage conditions. The aim of the proposed control strategies is to provide a set of reactive current references ...
    • Control strategies for combining local energy storage with wells turbine oscillating water column devices 

      Ceballos Recio, Salvador; Rea, Judy; Robles Sestafe, Eider; López, Iraide; Pou Félix, Josep; Osullivan, Dara (2015-11-01)
      Article
      Open Access
    • Design and implementation of a RS-485 Repeater in an Industrial Environment 

      Baqués Rodríguez, Marc (Universitat Politècnica de Catalunya, 2015-06)
      Bachelor thesis
      Open Access
      The purpose of this project is to carry out all the process needed to design and check a RS-485 Repeater shield in an industrial environment. First step to be done is to stablish all the product characteristics. Once it ...