Browsing by Subject "Energia fotovoltaica -- Generació"
Now showing items 1-20 of 29
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An efficient fault diagnosis method for PV systems based on operating voltage-window
(2013-09)
Article
Restricted access - publisher's policyWith the increasing use of photovoltaic (PV) systems, the research studies to improve the efficiency of PV systems have gained greater interest in recent years, especially under non-uniform operating conditions. However, ... -
Analysis of current and voltage indicators in grid connected PV (photovoltaic) systems working in faulty and partial shading conditions
(2015-06-12)
Article
Open AccessTo ensure the optimization of the energy generated by grid connected PV (photovoltaic) systems is necessary to plan a strategy of automatic fault detection. The analysis of current and voltage indicators have demonstrated ... -
Analysis of the dynamic short-circuit resistance in organic bulk-heterojunction solar cells: relation to the charge carrier collection efficiency
(2013-06)
Article
Restricted access - publisher's policyThis work studies the charge carrier collection efficiency in organic bulk-heterojunction solar cells based on polymer:fullerene blends. An equivalent circuit with a specific recombination term is proposed to describe the ... -
Behavioral data of thin-film single junction amorphous silicon (a-Si) photovoltaic modules under outdoor long term exposure
(Elsevier, 2016-06-01)
Article
Open AccessFour years'behavioraldataofthin-film single junction amorphous silicon (a-Si)photovoltaic(PV)modules installed in a relatively dry and sunny inland site with aContinental-Mediterranean climate (in thecityofJaén,Spain)are ... -
Convertidor para recuperación de energía a la red procedente de una planta fotovoltaica
(Universitat Politècnica de Catalunya, 2010-06-17)
Master thesis (pre-Bologna period)
Restricted access - author's decisionEn el present treball es dissenya un sistema automàtic per a la representació gràfica de la resposta intrínseca I-V i P-V de generadors fotovoltaics. Aquest sistema s’implementa mitjançant una placa electrònica i un ... -
Convertidor para recuperación de energía a la red procedente de una planta fotovoltaica
(Universitat Politècnica de Catalunya, 2010-06-17)
Master thesis (pre-Bologna period)
Restricted access - author's decisionEl present document recull el disseny, anàlisi i l’ implementació d’un convertidor estàtic per a la recuperació d’energia des de un sistema fotovoltaic per al posterior enviament cap a la xarxa elèctrica. En ell s’afronten ... -
Design of a Quasi-Z-Source inverter for PV application
(Universitat Politècnica de Catalunya, 2021-10-20)
Master thesis
Open AccessIn this thesis, a grid-connected PV system that uses a QZSI is studied, modelled and simulated using the Simulink module in the software Matlab, after conducting research on the electrical devices involved as well as on ... -
Diseño de un seguidor solar de grandes dimensiones de dos ejes para placas fotovoltaicas
(Universitat Politècnica de Catalunya, 2011-01)
Master thesis (pre-Bologna period)
Restricted access - author's decisionUn seguidor solar consiste en una estructura que se desplaza, adoptando la posición óptima, para la captación de radiación solar para la producción de energía eléctrica debido a las placas fotovoltaicas que se integran ... -
Diseño de una instalación fotovoltaica autónoma en un ámbito rural con registro paramétrico de energía
(Universitat Politècnica de Catalunya, 2011-06)
Master thesis (pre-Bologna period)
Open AccessEste proyecto nace de la creciente necesidad de apostar por las energías renovables. Cada vez más se invierte en mejorar el rendimiento de éstas, que no sólo son importantes porque son energías limpias, si no porque es una ... -
Ephocell project: smart light collecting system for the efficiency enhancement of solar cells - ray trace modeling of system
(2012)
Conference lecture
Restricted access - publisher's policyPV cell efficiency is limited partly due to the spectral mismatch between the solar spectrum and the PV absorption properties. PV conversion efficiency is enhanced by external modulation of the incident irradiance, by means ... -
Estudi de viabilitat d'una instal·lació fotovoltaica d'autoconsum en el nou context d'alça de preus de l'energia
(Universitat Politècnica de Catalunya, 2022-02-01)
Bachelor thesis
Restricted access - author's decisionEn aquest treball s’ha dimensionat una instal·lació solar fotovoltaica d'autoconsum degut al nou context d'alça de preus de l'energia. S’ha realitzat un estudi d’un habitatge familiar amb l’objectiu de reduir-ne els seus ... -
Evaluation of storage energy requirements for constant production in PV power plants
(IEEE Press. Institute of Electrical and Electronics Engineers, 2012-03-01)
Article
Restricted access - publisher's policyThis paper analyzes the minimum energy capacity ratings that an energy-storage (ES) system should accomplish in order to achieve a defined constant power production in a photovoltaic (PV) power plant. ES is a key issue for ... -
High voltage ultrathin-photovoltaic minimodules: fabrication technology and application to bioimplantable telesupplying
(2014-05-01)
Article
Restricted access - publisher's policyIn this work we show small (0.49 cm2) and thin (<70 µm) photovoltaic mini-generators capable of providing open circuit voltages up to 99 V and short circuit currents of 43 µA, achieving a maximum density power of 4.8 mW/cm2. ... -
Identification and maximum power point tracking of photovoltaic generation by a local neuro-fuzzy model
(2012)
Conference report
Restricted access - publisher's policyWith the rapid proliferation of the DC distribution systems, special attentions are paid to the photovoltaic (PV) generations. This paper addresses the problem of maximum power point tracking (MPPT) for PV systems using a ... -
Influencia de los parámetros de diseño de un inversor fotovoltaico en la estabilidad de una microred
(2012)
Conference report
Restricted access - publisher's policyEl incremento de la generación de energía distribuida en la red eléctrica ha despertado inquietudes respecto a la estabilidad de la misma. Los generadores fotovoltaicos conectados a la red eléctrica tienen que lidiar con ... -
Instal·lació fotovoltaica connectada a xarxa
(Universitat Politècnica de Catalunya, 2011-02)
Master thesis (pre-Bologna period)
Restricted access - author's decisionEn aquest projecte és realitza l’estudi necessari per a la instal·lació d’una central fotovoltaica connectada a xarxa a sobre d’una nau industrial. Aquesta nau industrial es troba en el polígon de Manacor, Mallorca, en ... -
Lithium ion batteries ageing analysis when used in a PV power plant
(2012)
Conference report
Restricted access - publisher's policyThis paper analyzes the integration of lithium ion (Li-ion) batteries into large scale grid-connected PV plants. It performs a systematic analysis on both the operation improvement obtained by a PV+ES power plant and the ... -
LPV model for PV cell and fractional control of DC-DC converter for photovoltaic systems
(IEEE, 2011)
Conference report
Restricted access - publisher's policyThis paper deals with the fractional modelling of a DC-DC converter, suitable in solar-powered electrical generation systems, and the design of a fractional controller for the aforementioned switching converter. A new model ... -
Lumogen violet dye as luminiscent down-shifting layer for C-silicon solar cells
(2012)
Conference lecture
Restricted access - publisher's policyIn this investigation Naphtalimide based Lumogen Violet organic dye [BASF] is characterized for inclusion in luminescent downshifting (LDS) layers. A PV device made up of an LDS layer of Lumogen Violet deposited on top ... -
Maximum power point tracking based on slidingmode control for output-series connected converters in photovoltaic systems
(2014-04-01)
Article
Restricted access - publisher's policyA perturb and observe algorithm based on both the power-current characteristic of a photovoltaic (PV) panel and the sliding-mode control of the input inductor current of an associated converter is investigated in a static ...