Now showing items 1-20 of 618

    • 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, ...
    • A GIS-based methodology for PV Solar Parks Site Selection and regional solar potential assessment: case study in the shire of La Segarra, Catalonia 

      Morales I Bellsolà, Javier (Universitat Politècnica de Catalunya, 2020-12-07)
      Master thesis
      Open Access
      Covenantee:   École Polytechnique Paris
      Transitioning to a society with almost null fossil fuel usage based on an alternative energetic model not dependent on fossil fuels nor nuclear power and based on decentralized energy system 100% renewable based with own ...
    • 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 ...
    • A novel methodology for determination of soiling on PV panels by means of grey box modelling 

      Castellà Rodil, Marc; Patarroyo Montenegro, Juan; Kampouropoulos, Konstantinos; Andrade Rengifo, Fabio; Romeral Martínez, José Luis (2019)
      Conference report
      Restricted access - publisher's policy
      This article presents a novel methodology for the determination of soiling appearance on photovoltaic panels by means of data analysis of their energy production and operating conditions. The proposed methodology is based ...
    • 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 ...
    • A regenerative active clamp circuit for DC/AC converters with high-frequency isolation in photovoltaic systems 

      Rocabert Delgado, Joan; Mata Dumenjó, Montserrat; Bordonau Farrerons, José; Beristain Gimenez, Jose Antonio (2004-11-15)
      Conference lecture
      Open Access
      DC/AC converters with high-frequency isolation and bidirectional power flow are extensively used in photovoltaic power systems and small isolated power converters at low and medium power ranges. The main disadvantages ...
    • A review of energy storage technologies for large scale photovoltaic power plants 

      Bullich Massagué, Eduard; Cifuentes-García, Francisco-Javier; Glenny Crende, Ignacio; Cheah Mañé, Marc; Aragüés Peñalba, Mònica; Díaz González, Francisco; Gomis Bellmunt, Oriol (2020-09-15)
      Article
      Restricted access - publisher's policy
      Energy storage can play an essential role in large scale photovoltaic power plants for complying with the current and future standards (grid codes) or for providing market oriented services. But not all the energy storage ...
    • A simple and efficient MPPT method for low-power PV cells 

      Penella López, María Teresa; Gasulla Forner, Manuel (2014-01-01)
      Article
      Open Access
      Small-size PV cells have been used to power sensor nodes. These devices present limited computing resources and so low complexity methods have been used in order to extract the maximum power from the PV cells. Among them, ...
    • A statistical based approach for fault detection and diagnosis in a photovoltaic system 

      Garoudja, Elyes; harrou, fouzi; Sun, Ying; kara, kamel; Chouder, Aissa; Silvestre Bergés, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      This paper reports a development of a statistical approach for fault detection and diagnosis in a PV system. Specifically, the overarching goal of this work is to early detect and identify faults on the DC side of a PV ...
    • A two-resonance tapping cavity for an optimal light trapping in thin-film solar cells 

      Liu, Quan; Romero Gómez, Pablo; Mantilla Perez, Paola; Colodrero, Silvia; Toudert, Johann; Martorell Pena, Jordi (2017-09-20)
      Article
      Open Access
      An optimal photon absorption in thin film photovoltaic technologies can only be reached by effectively trapping the light in the absorber layer provided a considerable portion of the photons is rejected or scattered out ...
    • A unified current loop tuning approach for grid-connected photovoltaic inverters 

      Zhang, Weiyi; Remón Rodríguez, Daniel; Mir Cantarellas, Antonio; Rodríguez Cortés, Pedro (2016-09-01)
      Article
      Open Access
      High level penetration of renewable energy sources has reshaped modern electrical grids. For the future grid, distributed renewable power generation plants can be integrated in a larger scale. Control of grid-connected ...
    • 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 ...
    • Adaptation of Cu(In, Ga)Se2 photovoltaics for full unbiased photocharge of integrated solar vanadium redox flow batteries 

      Murcia López, Sebastián; Chakraborty, Monalisa; Carretero, Nina; Flox Donoso, Cristina; Morante Lleonart, Joan Ramon; Andreu, Teresa (2019-10-30)
      Article
      Open Access
      The integration of photovoltaics and vanadium redox flow batteries (VRFB) is a promising alternative for the direct conversion and storage of solar energy in a single device, considering their ...
    • 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 ...
    • 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
      Open Access
      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 ...
    • 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 European study on the effect of coupling electric generation by means of photovoltaic with GSHP in a building retrofit in an urban area 

      Lorenzo Basora, Georgina (Universitat Politècnica de Catalunya, 2020-05-20)
      Master thesis
      Restricted access - author's decision
      Covenantee:   Università degli Studi di Padova
      An European study on the effect of coupling electric generation by means of photovoltaic with GSHP in a building retrofit in an urban area The objective of this project has been to study the possibility of coupling ...