-
1دورية أكاديمية
المؤلفون: Farah Benharrats, Habib Mahi
المصدر: Revue des Énergies Renouvelables, Vol 26, Iss 1, Pp 31 – 39-31 – 39 (2023)
مصطلحات موضوعية: global surface solar irradiance, modis, bird & hulstrom radiometric model, transmittance, atmospheric parameters, algeria, Renewable energy sources, TJ807-830
الوصف: Estimation of solar irradiance received on the ground is essential in many solar energy applications, particularly those relying on concentrating solar technologies. In this work, we propose a model to estimate the spatial distribution of global Surface Solar Irradiance (SSI) from a Bird & Hulstrom radiometric model/MODIS atmospheric data combination. The theoretical model selected is the radiometric model of Bird & Hulstrom, and it has been modified to take into account the effect of the atmosphere by adding a transmittance function that obeys the Beer-Lambert law, implemented with atmospheric parameters (water vapor, ozone, aerosols, etc.) from the Moderate Resolution Imaging Spectroradiometer (MODIS) atmospheric products. The effectiveness of the proposed methodology is tested on the Algerian territory. The obtained results show that the proposed approach concurs with results provided by the tested Meteosat data-based method while providing SSI maps of better spatial resolution. Moreover, the obtained solar irradiances show a root mean square error of about 140 Wh.m-2 in comparison with the Copernicus Atmosphere Monitoring Service (CAMS) radiation extracted from the Solar Radiation Database for the environment (SoDa) server.
وصف الملف: electronic resource
العلاقة: https://revue.cder.dz/index.php/rer/article/view/1115Test; https://doaj.org/toc/1112-2242Test; https://doaj.org/toc/2716-8247Test
-
2دورية أكاديمية
المؤلفون: Tahar Merizgui, Oumelkheir Bouchiba, Bachir Gaoui, Mouhoub Birane
المصدر: Revue des Énergies Renouvelables, Vol 25, Iss 1, Pp 93-107 (2022)
مصطلحات موضوعية: mppt, inccond algorithm, p&o algorithm, solar irradiance, Renewable energy sources, TJ807-830
الوصف: This paper presents a comparison study in different techniques of maximum power point tracking (MPPT), which have been experimented and validated by simulation in the proposed PV system. The main aim of each MPPT technique is to enhance and optimize the output of photovoltaic (PV) array in dynamic weather conditions through an examination algorithm. Nevertheless, an optimized MPPT technique is described in many sides like achievement, software, precision, convergence velocity, and hardware naturalness. The gained experimental results for the MPPT techniques are compared using the Perturbation and Observation (P&O), Incremental Conductance (IncCond), Short Circuit Current (SCC), Open Circuit Voltage (OCV), and Constant Voltage (CV) at weather conditions variations. These methods were analyzed and their performance was estimated through using the Matlab/Simulink under different types of atmospheric conditions. These results show that the IncCond technique gives larger efficiency, at rapidly changing conditions than the other techniques.
وصف الملف: electronic resource
العلاقة: https://revue.cder.dz/index.php/rer/article/view/1074Test; https://doaj.org/toc/1112-2242Test; https://doaj.org/toc/2716-8247Test
-
3دورية أكاديمية
المؤلفون: Irshad Ahmad Shah
المصدر: MATEC Web of Conferences, Vol 374, p 03002 (2023)
مصطلحات موضوعية: photovoltaic technologies, performance analysis, solar energy, solar irradiance, performance ratio, Engineering (General). Civil engineering (General), TA1-2040
الوصف: Building integrated photovoltaic (BIPV) system is a new and modern technique for solar energy production in Kandahar. Due to its location, Kandahar has abundant sources of solar energy. People use both monocrystalline and polycrystalline silicon solar PV modules for the grid-connected solar PV system, and they don’t know that which technology performs better for BIPV system. This paper analysis the parameters, described by IEC61724 “Photovoltaic System Performance Monitoring Guidelines for Measurement, Data Exchange and Analysis” to evaluate which technology shows better performance for the BIPV system. The monocrystalline silicon BIPV system has a 3.1% higher array yield than the polycrystalline silicon BIPV system. The final yield is 0.2% somewhat higher for monocrystalline silicon than polycrystalline silicon. Monocrystalline silicon has 0.2% and 4.5% greater yearly yield factor and capacity factors than polycrystalline silicon respectively. Monocrystalline silicon shows 0.3% better performance than polycrystalline silicon. With 1.7% reduction and 0.4% addition in collection losses and useful energy produced respectively, monocrystalline silicon solar PV system shows good performance than polycrystalline silicon solar PV system. But system losses are the same for both technologies. The monocrystalline silicon BIPV system injects 0.2% more energy to the grid than the polycrystalline silicon BIPV system.
العلاقة: https://www.matec-conferences.org/articles/matecconf/pdf/2023/01/matecconf_icarae2023_03002.pdfTest; https://doaj.org/toc/2261-236XTest; https://doaj.org/article/84a2cba608704133a3ea959ace29ef09Test
الإتاحة: https://doi.org/10.1051/matecconf/202337403002Test
https://doaj.org/article/84a2cba608704133a3ea959ace29ef09Test -
4دورية أكاديمية
المصدر: E3S Web of Conferences, Vol 212, p 01012 (2020)
مصطلحات موضوعية: solar irradiance, sunshine duration, cloud cover, solar power potential, Environmental sciences, GE1-350
الوصف: The work analyses climate resources that can potentially be used to develop solar power in Belarus efficiently. The authors determine space-time variability of radiation regime including such parameters as solar irradiance, atmosphere transparency, sunshine duration, cloud cover patterns, etc. The efficiency of solar power generators is assessed by taking into account the number of clear days with low cloud cover per year, sunshine duration per month, and solar irradiance of a horizontal surface in the daytime.
العلاقة: https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/72/e3sconf_icbte2020_01012.pdfTest; https://doaj.org/toc/2267-1242Test; https://doaj.org/article/64a05b6cef2a4423b8624a5232498b45Test
الإتاحة: https://doi.org/10.1051/e3sconf/202021201012Test
https://doaj.org/article/64a05b6cef2a4423b8624a5232498b45Test -
5دورية أكاديميةAnalysis Performance of Grid Tie Photovoltaic Type Polycrystalline Using Solar Irradiance Simulation
المصدر: E3S Web of Conferences, Vol 125, p 14013 (2019)
مصطلحات موضوعية: grid, irradiance, temperature, solar photovoltaic, pvarray, mppt, Environmental sciences, GE1-350
الوصف: Indonesia is a country consisting of several islands some of which are still not covered by electricity. It is this source of PV that can be used to meet the needs of people who are not yet affordable with PLN electricity. Basically, PV includes the generation of new renewable energy types. This new form of energy comes from sunlight. Using semiconductor materials can convert energy from sunlight to electrical energy. Because in Indonesia this includes tropical climates located on the equator line, making Indonesia has a very high intensity of light. Several factors affect electrical energy, namely the extent of PV to be used, the total irradiance received by PV, the decrease in performance due to weather and cleanliness of the PV used such as snow and oiliness. In this study explained the Analysis of Irradian-based Grid Tie photovoltaic performance with Polycrystalline PV types. Taking irradian data using a Solar Power Meter, irradiance and temperature data at a certain time will use the Incremental Maximum Power Point Tracking (MPPT) method, DC-DC boost converter, inverter, voltage source converter (VSC) using algorithm and equipment controls connected to network. This research is simulated using Matlab with the Simulink program.
العلاقة: https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/51/e3sconf_icenis2019_14013.pdfTest; https://doaj.org/toc/2267-1242Test; https://doaj.org/article/2cc33162da7346c18bde785d0a12ca78Test
الإتاحة: https://doi.org/10.1051/e3sconf/201912514013Test
https://doaj.org/article/2cc33162da7346c18bde785d0a12ca78Test -
6
المؤلفون: Tapics, Tara, Huot, Yannick, Walsh, David
المساهمون: Tapics, Tara
مصطلحات موضوعية: Earth and Environmental Sciences, lake monitoring, Quebec, temperate lakes, underwater irradiance, underwater light, ice thickness, snow thickness, secchi, DNA, RNA, Particulate organic matter, Chlorophyll a, Phytoplankton pigments, Specific conductivity profiles, pH profiles, oxygen saturation profiles, dissolved oxygen profiles, ammonium, total nitrogen, total dissolved nitrogen, suspended particulate matter, dissolved organic carbon, phaeopigments, major ions, sulphate, temperature profiles, phytoplankton samples, zooplankton samples, multi-lake
الوصف: Data were collected every two weeks in summer and every four weeks in winter beginning fall 2012 and ending fall 2015 in the Quebec (Canada) lakes Lac Croche, Lac Montjoie, and Lac SImoncouche. On each sampled date, a temperature profile was taken and analysed to determine if the lake was stratified or not. When stratified, discrete samples were taken for chemical and biological analyses in both the epilimnion and the metalimnion. When mixed, discrete samples for chemical biological samples were taken from one depth within the mixed layer. Profiles of lake oxygen, temperature, conductivity, and pH were taken, as were profiles of phytosynthetically active irradiance (PAR).
-
7مؤتمر
المساهمون: Unité de recherche Plantes et Systèmes de Culture Horticoles (PSH), Institut National de la Recherche Agronomique (INRA), Génétique et Amélioration des Fruits et Légumes (GAFL)
المصدر: 5. Rencontres du Végétal
https://hal.inrae.fr/hal-02757242Test
5. Rencontres du Végétal, Jan 2009, Angers, Franceمصطلحات موضوعية: SUGAR CONTENT, IRRADIANCE, PHOTOSYNTHESIS, ASCORBIC ACID, [SDV]Life Sciences [q-bio], [SDE]Environmental Sciences
الوصف: National audience
العلاقة: hal-02757242; https://hal.inrae.fr/hal-02757242Test; https://hal.inrae.fr/hal-02757242/documentTest; https://hal.inrae.fr/hal-02757242/file/31736_20090410101915986_1.pdfTest; PRODINRA: 31736
-
8مؤتمر
المؤلفون: Pacanowski, Romain, Granier, Xavier, Schlick, Christophe
المساهمون: Visualization and manipulation of complex data on wireless mobile devices (IPARLA), INRIA Futurs, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Université Sciences et Technologies - Bordeaux 1 (UB)-École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Bordelais de Recherche en Informatique (LaBRI), Université de Bordeaux (UB)-École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB)-Centre National de la Recherche Scientifique (CNRS), Département d'Informatique et de Recherche Opérationnelle Montreal (DIRO), Université de Montréal (UdeM)
المصدر: 18ièmes Journées de l'Association Française d'Informatique Graphique (AFIG)
https://inria.hal.science/inria-00000860Test
18ièmes Journées de l'Association Française d'Informatique Graphique (AFIG), Nov 2005, Strasbourg, Franceمصطلحات موضوعية: Irradiance caching, Eclairage global, Cache d'éclairement, Eclairement vectoriel, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR]
جغرافية الموضوع: Strasbourg, France
الوصف: National audience ; Dans cet article, nous introduisons une nouvelle représentation de la fonction d'éclairage première étape pour en obtenir une reconstruction volumique et multirésolution. Notre représentation se veut robuste aux variations locales de la géométrie et de ses propriétés matérielles afin de permettre le plongement d'un objet dans une solution d'éclairage. Nous montrons comment notre représentation peut être utilisée comme structure de cache pour l'éclairage indirect diffus dans le cadre de l'algorithme du tracé de rayon.
العلاقة: inria-00000860; https://inria.hal.science/inria-00000860Test; https://inria.hal.science/inria-00000860/documentTest; https://inria.hal.science/inria-00000860/file/afig-2005.pdfTest
-
9رسالة جامعية
المؤلفون: Gbemou, Shab
المساهمون: Procédés, Matériaux et Energie Solaire (PROMES), Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS), Université de Perpignan, Stéphane Grieu
المصدر: https://theses.hal.science/tel-03641953Test ; Autre. Université de Perpignan, 2021. Français. ⟨NNT : 2021PERP0050⟩.
مصطلحات موضوعية: Global horizontal irradiance, Gaussian process regression, Kernel, Photovoltaic power generation, Energy transition, Forecasting, Machine learning, Éclairement global horizontal, Régression non paramétrique par processus gaussien, Noyau, Production photovoltaïque, Transition énergétique, Prévision, Apprentissage automatique, [SPI.OTHER]Engineering Sciences [physics]/Other
الوصف: The penetration of intermittent renewable energies, in particular solar photovoltaic (PV), in the power distribution grid is constantly increasing due to the dynamics instilled by the energy transition. A change of the power distribution grid has thus become necessary. This mutation must allow to increase the capacity of the network without reinforcing the infrastructures and to limit the constraints, in particular voltage constraints, which start to appear on the low voltage power distribution grid.This thesis is part of the project Smart Occitania, which deals with the development of a control strategy with controlled computing cost for the predictive management of a low voltage power distribution grid. The control strategy involves intrahour and intraday forecasts of stochastic quantities, such as solar photovoltaic generation. This thesis deals with the temporal and spatio-temporal forecasting of global horizontal irradiance (GHI), in order to forecast PV power generation.First, a comparative study of machine learning tools was conducted in order to choose the most suitable method for GHI forecasting. The results showed that non-parametric Gaussian process regression (GPR) is the most suitable tool for our application. Then, the choice of the input of the GPR models has been studied. Indeed, for GPR, time or historical observations can be used as input. A comparative study was conducted, highlighting that, with respect to our application, time as an adequate input. Furthermore, the known inductive biases on the GHI dynamics have been used to build a suitable kernel. Finally, a preliminary study has been conducted, so as to determine the spatial kernel to be associated with the temporal kernel for spatio-temporal forecasting of GHI. ; La pénétration des énergies renouvelables intermittentes, en particulier du solaire photovoltaïque, dans le réseau électrique de distribution ne cesse d'augmenter du fait de la dynamique insufflée par la transition énergétique. Une mutation du réseau électrique de distribution ...
العلاقة: NNT: 2021PERP0050; tel-03641953; https://theses.hal.science/tel-03641953Test; https://theses.hal.science/tel-03641953/documentTest; https://theses.hal.science/tel-03641953/file/These_Gbemou_Shab_2021.pdfTest
-
10رسالة جامعية
المؤلفون: Gbemou, Shab
المساهمون: Perpignan, Grieu, Stéphane
مصطلحات موضوعية: Éclairement global horizontal, Régression non paramétrique par processus gaussien, Noyau, Production photovoltaïque, Transition énergétique, Prévision, Apprentissage automatique, Global horizontal irradiance, Gaussian process regression, Kernel, Photovoltaic power generation, Energy transition, Forecasting, Machine learning, 621.319
الوقت: 004
الوصف: La pénétration des énergies renouvelables intermittentes, en particulier du solaire photovoltaïque, dans le réseau électrique de distribution ne cesse d'augmenter du fait de la dynamique insufflée par la transition énergétique. Une mutation du réseau électrique de distribution est donc devenue nécessaire. Cette mutation doit permettre d'augmenter la capacité d'accueil du réseau sans renforcement des infrastructures et de limiter les contraintes, en particulier en tension, qui commencent à apparaitre sur le réseau électrique de distribution basse tension.Cette thèse s'inscrit dans le cadre du projet de démonstrateur de réseau électrique intelligent en milieu périurbain/rural « Smart Occitania », traitant du développement d'une stratégie de contrôle à coût calculatoire maîtrisé pour la gestion prédictive d'un réseau électrique de distribution basse tension. La stratégie de contrôle implique des prévisions infra-horaires et infra-journalières de grandeurs stochastiques, telles que la production solaire photovoltaïque. Ces travaux de thèse traitent de la prévision multi-horizon, dans un premier temps localisée, puis spatio-temporelle, de l'éclairement global horizontal (ou GHI, pour global horizontal irradiance) à des fins de prévision de la production solaire photovoltaïque.Tout d'abord, une étude comparative des outils de l'apprentissage automatique a été menée dans le but de choisir l'outil le plus adapté à la prévision du GHI. Les résultats ont montré que la régression non paramétrique par processus gaussien (ou GPR, pour Gaussian process regression) est l'outil le plus adapté à notre application. Ensuite, le choix de l'entrée des modèles GPR a été étudié. En effet, pour le GPR, il est possible d'utiliser le temps ou un historique d'observations comme entrée. Une étude comparative a été menée, mettant en lumière qu'au regard de notre application, le temps était l'entrée adéquate. Par ailleurs, les biais inductifs connus sur la dynamique du GHI ont été utilisés afin de construire un noyau adapté. Enfin, une étude ...
النص الكامل