Now showing items 1-20 of 395

  • 4-terminal tandem photovoltaic cell using two layers of PTB7:PC71BM for optimal light absorption 

    Mantilla Perez, Paola; Martinez Otero, Alberto; Romero Gómez, Pablo; Martorell Pena, Jordi (2015-08-26)
    Article
    Open Access
    A 4-terminal architecture is proposed in which two thin active layers (<100 nm) of PTB7:PC71BM are deposited on a two-sided ITO covered glass substrate. By modeling the electric field distribution inside the multilayer ...
  • A control strategy for DC-link voltage control containing PV generation and energy storage — An intelligent approach 

    Rouzbehi, Kumars; Miranian, Arash; Candela García, José Ignacio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    In this paper, DC-link voltage control in DC microgrids with photovoltaic (PV) generation and battery, is addressed based on an intelligent approach. The proposed strategy is based on the modeling of the power interface, ...
  • Active power control in a hybrid PV-storage power plant for frequency support 

    Bullich Massagué, Eduard; Aragüés Peñalba, Mònica; Sumper, Andreas; Boix Aragonès, Oriol (2017-03)
    Article
    Open Access
    The recent increase of intermittent power generation plants connected to the electric power grids may stress the operation of power systems. So, grid codes started considering these power plants should con- tribute to the ...
  • Adequació d’un edifici públic d'ús docent per a una millor eficiència en el consum de recursos i una gestió ambientalment correcte 

    Vega Moreno, Helena (Universitat Politècnica de Catalunya, 2009-05)
    Master thesis (pre-Bologna period)
    Open Access
    En aquest projecte s’estudia la incorporació de mesures en un edifici existent, i dedicat a l’ensenyament primari, per tal d’assolir un doble objectiu: millorar el nivell de confort dels seus usuaris i aconseguir una ...
  • Adjust of solar cell model parameters based in MATLAB 

    Silvestre Bergés, Santiago; Guasch Murillo, Daniel; Ortega Villasclaras, Pablo Rafael; Navarro, Nacho (M. C. Acero, M. Lozano - CNM-CSIC, 2003)
    Conference lecture
    Restricted access - publisher's policy
    In this work, a model parameter extractor of solar cells using Matlab is shown. The software, developed in Matlab environment, has been successfully applied to study internal characteristics of photovoltaic devices [1-2], ...
  • Air stable organic semiconductors based on diindolo[3,2-a:3',2'-c]carbazole 

    Cuadrado Santolaria, Alba; Cuesta, Jessica; Puigdollers i González, Joaquim; Velasco Castrillo, Maria Dolores (2018-11-01)
    Article
    Restricted access - publisher's policy
    The extension of the p-conjugated 10,15-dihydro-5H-diindolo[3,2-a:3',2'-c]carbazole (triindole) system via the introduction of donor moieties of different nature (phenyl, naphthyl, methylthiophenyl and benzo[b]thienyl) at ...
  • A low-disturbance diagnostic function integrated in the PV arrays' MPPT algorithm 

    Sera, Dezso; Mathe, L.; Kerekes, Tamas; Teodorescu, Remus; Rodríguez Cortés, Pedro (IEEE, 2011)
    Conference report
    Restricted access - publisher's policy
    This paper focuses on the estimation of series resistance changes for flat silicone PV panels or arrays during operation, without moving the operating point far away from the Maximum Power Point1. The method is based ...
  • Análisis de factibilidad técnica y económica de frío solar con enfriador evaporativo en tiendas 24x7 en México 

    Moreno Cruz, Gilberto (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2012-06)
    Master thesis
    Open Access
    Refrigerar un local a partir de la energía del Sol es una alternativa muy interesante a la forma en la que actualmente se genera el frío. La combinación de módulos fotovoltaicos y de un enfriador evaporativo es la forma ...
  • Análisis energético de una pequeña empresa catalana y propuestas para la redacción del consumo de energía, del coste asociado y del impacto ambiental 

    Claramunt Estecha, Angel (Universitat Politècnica de Catalunya, 2008-09)
    Master thesis (pre-Bologna period)
    Open Access
    Durante el desarrollo de este proyecto se tratan diferentes aspectos relativos a la realización de mejoras energéticas en una pequeña industria catalana. Concretamente, se pretende como objetivo proponer mejoras energéticas ...
  • Análisis y diseño de un sistema SCADA para paneles solares fotovoltaicos 

    Yebra Pérez, Jaume; Lagos Fernández, Núria (Universitat Politècnica de Catalunya, 2006-01)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    PRESENTACIÓN: Frente al aumento del consumo energético y la insostenibilidad del modelo energético actual, las fuentes de energía renovables tienen un peso decisivo. La energía solar, es la energía con más posibilidades ...
  • Analysis of photovoltaic investments in the spanish market 

    Costa Santolaria, Pablo (Universitat Politècnica de Catalunya / Cranfield University, 2009)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    This thesis conducts a profitability analysis of investments in Photovoltaic (PV) installations connected to the Spanish electrical grid system, focusing on the regulatory framework and investment returns. The thesis ...
  • Analysis of the Atomic Layer Deposited Al2O3 field-effect passivation in black silicon 

    von Gastrow, Guillaume; Alcubilla González, Ramón; Ortega Villasclaras, Pablo Rafael; Yli-Koski, Marko; Conesa-Boj, Sònia; Fontcuberta i Morral, Anna; Savin, Hele (2015-11)
    Article
    Open Access
    We demonstrate that n-type black silicon can be passivated efficiently using Atomic Layer Deposited (ALD) Al2O3, reaching maximum surface recombination velocities below 7 cm/s. We show that the low surface recombination ...
  • Analysis of thin film photovoltaic modules under outdoor long term exposure in semi-arid climate conditions. 

    Tahri, Ali; Silvestre Bergés, Santiago; Tahri, Fatima; Belemna, Soumia; Chouder, Aissa (2017-09-01)
    Article
    Restricted access - publisher's policy
    The aim of this paper is to present an analysis of long term outdoor exposure of two thin film photovoltaic (TFPV) module technologies deployed in semi-arid climate in Saida city located in Algeria. The TFPV modules are: ...
  • An anti-islanding method for voltage controlled VSI 

    Llonch Masachs, Marc; Heredero Peris, Daniel; Montesinos Miracle, Daniel (2015)
    Conference lecture
    Restricted access - publisher's policy
    Islanding detection methods have been widely applied and thought for current-controlled voltage source inverters, as in case of photovoltaic inverters. However, some considerations have to be taken into account when ...
  • An extremely thin and robust interconnecting layer providing 76% fill factor in a tandem polymer solar cell architecture 

    Martinez Otero, Alberto; Liu, Quansheng; Mantilla Perez, Paola; Montes Bajo, Miguel; Martorell Pena, Jordi (Royal Society of Chemistry, 2015-04-17)
    Article
    Open Access
    We report a thin and robust interconnecting layer (ICL) for polymer tandem solar cells. This ICL shows low absorption, good electrical contacts, large work function contrast and robustness. Its use yields tandem cells with ...
  • An indium tin oxide-free polymer solar cell on flexible glass 

    Formica, Nadia; Mantilla Perez, Paola; Ghosh, Dhriti Sundar; Janner, Davide; Chen, T. L.; Huang, Minghuang; Garner, Sean; Martorell Pena, Jordi; Pruneri, Valerio (2015-02-05)
    Article
    Open Access
    Future optoelectronic devices and their low-cost roll-to-roll production require mechanically flexible transparent electrodes (TEs) and substrate materials. Indium tin oxide (ITO) is the most widely used TE because of its ...
  • A photovoltaic three-phase topology to reduce common mode voltage 

    Vázquez Guzmán, Gerardo; Kerekes, Tamas; Rocabert Delgado, Joan; Rodríguez Cortés, Pedro; Teodorescu, Remus; Aguilar, Daniel (2010)
    Conference report
    Open Access
    At the present time most of the photovoltaic (PV) applications require to be integrated to the electrical grid. There are mainly two types of PV systems: with galvanic isolation (transformer) and transformerless. PV ...
  • Aplicació de lones fotovoltaiques en una estructura de càmping desmuntable 

    Garriga Bonnín, Cèlia (Universitat Politècnica de Catalunya, 2019-01-17)
    Master thesis
    Open Access
    Aquest projecte té com a objectiu fonamental el disseny d'un sistema d'obtenció d'energia fotovoltaica integrada en una estructura de càmping desmuntable. L'energia obtinguda mitjançant aquest sistema serà destinada a ...
  • Aplicació en línia per al càlcul de l’energia fotovoltaica potencial en els polígons industrials de Catalunya 

    Francés Cuscó, Aleix (Universitat Politècnica de Catalunya, 2015-06)
    Master thesis (pre-Bologna period)
    Open Access
    El present projecte té com a objectius principals la creació, disseny i programació d'una aplicació en línia, la qual a partir de certs aspectes determinats sobre un polígon industrial (com són la inclinació de la teulada, ...
  • Aplicació fotovoltaica a la masia can Julià 

    Gaspà Ortiz, Andreu (Universitat Politècnica de Catalunya, 2008-06)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision