39 10 944 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Review Articles Journal of Renewable Energies Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Ouksel, Tayeb Chelghoum, Abdelaziz Mameri, Abdelbaki Date A point or period of time associated with an event in the lifecycle of the resource 2023-10-12 Description An account of the resource L’objectif principal de ce travail de recherche était d’étudier les effets de l’addition de l’hydrogène H2 sur quelques caractéristiques thermochimiques de la combustion du GNC (Gaz Naturel Comprimé) à base de méthane CH4 dans un moteur thermique. Afin d’assurer un bon rapport puissance / consommation et pour répondre aux aveux des écologistes, on présente dans le présent travail une nouvelle piste de recherche sur un nouveau mode de combustion qui permet de s’affranchir en partie des systèmes de post-traitement des gaz d’échappement devenus très complexes et trop coûteux. Ce mode de combustion connu sous le nom 'HCCI', (Homogeneous Charge Compression Ignition). Les nouveaux concepts de combustion doivent permettre de réduire à la source les émissions polluantes. La combustion homogène pauvre est l'une des solutions qui répond à ces exigences. Pour ce faire, nous avons utilisé le code de simulation Chemkin-Pro  pour suivre les évolutions de la température, de la pression et des émissions polluantes pour différentes quantités d’hydrogène ajouté. Cette étude a montré que l’ajout d’hydrogène au GNC est une alternative assez intéressante. Elle conduit à une diminution des délais d’inflammation, c'est-à-dire une augmentation de la réactivité et une diminution des émissions polluantes (exclusivement le NO et le CO2). Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://revue.cder.dz/index.php/rer/article/view/638 10.54966/jreen.v20i3.638 Language A language of the resource eng Publisher An entity responsible for making the resource available Renewable Energy Development Center Relation A related resource https://revue.cder.dz/index.php/rer/article/view/638/1201 Rights Information about rights held in and over the resource Copyright (c) 2021 Journal of Renewable Energies https://creativecommons.org/licenses/by-sa/4.0 Source A related resource from which the described resource is derived Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 423 - 431 Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 423 - 431 2716-8247 1112-2242 10.54966/jreen.v20i3 Subject The topic of the resource Mode de combustion HCCI Gaz Naturel Comprimé Modèle Multi-zone Enrichissement par de l’hydrogène Chemkin-Pro Title A name given to the resource Etude de la combustion HCCI du GNC enrichi à l'hydrogène à l’aide de Chemkin-Pro Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Review Articles Journal of Renewable Energies Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Touil, Salah Date A point or period of time associated with an event in the lifecycle of the resource 2023-10-12 Description An account of the resource Les effluents d’encres doivent être traités avant rejet dans le milieu récepteur, le traitement physico-chimique est une technique de traitement efficace pour ces effluents. L’eau traitée respecte les normes marocaines de rejets, mais la forte consommation des réactifs lors du traitement est un point faible de cette technique. Dans cette étude, nous nous intéressons à l’optimisation du traitement physico-chimique par la combinaison des niveaux des facteurs susceptibles d’agir sur le traitement. Les réponses étudiées sont évidement la demande chimique en oxygène (DCO) et la turbidité. La méthode de conception expérimentale basée sur un modèle composite de 2ème ordre est employée. Les résultats obtenus ont permis de réaliser une réduction de la consommation du coagulant de 16.44 % et du floculant de 68.92 %. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://revue.cder.dz/index.php/rer/article/view/637 10.54966/jreen.v20i3.637 Language A language of the resource eng Publisher An entity responsible for making the resource available Renewable Energy Development Center Relation A related resource https://revue.cder.dz/index.php/rer/article/view/637/1200 Rights Information about rights held in and over the resource Copyright (c) 2021 Journal of Renewable Energies https://creativecommons.org/licenses/by-sa/4.0 Source A related resource from which the described resource is derived Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 415 - 422 Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 415 - 422 2716-8247 1112-2242 10.54966/jreen.v20i3 Subject The topic of the resource Effluents d’encres Coagulation Floculation Optimisation plans d’expérience Title A name given to the resource Optimisation du traitement physico-chimique des eaux d’encres Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Review Articles Journal of Renewable Energies Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Gouidmi, Hamza Beghidja, Abdelhadi Benderradji, Razik Ihaddadène, Nabila Raouache, Elhadj Date A point or period of time associated with an event in the lifecycle of the resource 2023-10-12 Description An account of the resource Dans une certaine plage de nombre de Mach, l'interaction entre une onde de choc oblique et une couche limite s'effectue par une investigation numérique sur une plaque plane athermane, basée sur la résolution des équations de Navier-Stokes bidimensionnelles par le code Fluent. Cette interaction se matérialise sous la forme d'une onde de choc en 'lambda', décrite en premier par Mark en 1958. Elle peut être rencontrée dans les équipements des souffleries à haute enthalpie ou ceux relatifs à la distribution de gaz comprimés par exemple. Une bonne connaissance des phénomènes physiques intervenant dans de tels écoulements est nécessaire tant au point de vue des normes de sécurité qu'en terme d'accroissement des performances. Sous cette structure de choc, il se forme un bulbe de décollement massif engendrant une succession de structures tourbillonnaires en cas laminaire que turbulent due par l’effet du nombre de Mach amont qui est observé. Elle est suivie par un phénomène de transition de la réflexion régulière RR vers la réflexion de Mach MR pour le cas turbulent. Globalement les résultats numériques obtenus sont conformes avec ceux qui sont disponibles dans la littérature. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://revue.cder.dz/index.php/rer/article/view/636 10.54966/jreen.v20i3.636 Language A language of the resource eng Publisher An entity responsible for making the resource available Renewable Energy Development Center Relation A related resource https://revue.cder.dz/index.php/rer/article/view/636/1199 Rights Information about rights held in and over the resource Copyright (c) 2021 Journal of Renewable Energies https://creativecommons.org/licenses/by-sa/4.0 Source A related resource from which the described resource is derived Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 397 - 413 Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 397 - 413 2716-8247 1112-2242 10.54966/jreen.v20i3 Subject The topic of the resource Interaction onde de choc-couche limite Structures tourbillonnaires Bulle de décollage Phénomènes de transition RR-MR Title A name given to the resource Etude numérique d’une structure de choc Phénomène d’interaction choc/couche limite Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Review Articles Journal of Renewable Energies Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Taleb, Rachid Saidi, Hemza Chabni, Fayçal Date A point or period of time associated with an event in the lifecycle of the resource 2023-10-12 Description An account of the resource We hear a lot in the media about the solar car, and that it would be the future car. We see also several examples of this kind in various parts of the world. In this work we would try to do a study which will respond to this question: whether is there currently a solar car, which will be an alternative to cars working with fossil fuel? To get an answer to this question we have to examine some manufactured models and analyze their various data, by studying each element of the vehicle. In second step and in order to confirm what we have concluded, we have to manufacture our car and conduct various tests. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://revue.cder.dz/index.php/rer/article/view/635 10.54966/jreen.v20i3.635 Language A language of the resource eng Publisher An entity responsible for making the resource available Renewable Energy Development Center Relation A related resource https://revue.cder.dz/index.php/rer/article/view/635/1198 Rights Information about rights held in and over the resource Copyright (c) 2021 Journal of Renewable Energies https://creativecommons.org/licenses/by-sa/4.0 Source A related resource from which the described resource is derived Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 389 - 396 Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 389 - 396 2716-8247 1112-2242 10.54966/jreen.v20i3 Subject The topic of the resource Solar vehicle Fossil fuel Future challenges Solar panels Title A name given to the resource Solar powered cars - The future challenges Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Review Articles Journal of Renewable Energies Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Amarouche, Khalid Bachari, Nour El Islam Houma, Fouzia Boughrira, Abdelhak Date A point or period of time associated with an event in the lifecycle of the resource 2023-10-12 Description An account of the resource The knowledge of wave energy propagation in the shallow water allow us to understand the functioning of marine ecosystems and to give answers about several costal phenomena. In the Algerian coast, the waves are omnipresent with an energy that is stripped under different physical forms. The classification of areas with high hydrodynamic energy potential requires a large data flow, concerning the physical hydrodynamic parameters produced by this energy. In this study we have developed a numerical code based on various mathematical theories and equations describing the physical state of the wave, including the formulas of MUNK, Coastal Engineering Research Center, 'CERC' and of the French Central Hydraulics Laboratory, 'LCHF', based on the output data of the SWAN model. This code allowed us to measure several wave’s physical parameters sufficiently well in order to understand and quantify the energies transmitted along the coast. A spatial analysis of the obtained results allowed us to classify seven coastal stations with an average wave energy exceeding 20 kW/m in the stormy days. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://revue.cder.dz/index.php/rer/article/view/634 10.54966/jreen.v20i3.634 Language A language of the resource eng Publisher An entity responsible for making the resource available Renewable Energy Development Center Relation A related resource https://revue.cder.dz/index.php/rer/article/view/634/1197 Rights Information about rights held in and over the resource Copyright (c) 2021 Journal of Renewable Energies https://creativecommons.org/licenses/by-sa/4.0 Source A related resource from which the described resource is derived Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 377 - 388 Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 377 - 388 2716-8247 1112-2242 10.54966/jreen.v20i3 Subject The topic of the resource Coastal hydrodynamics Wave propagation Wave modeling Wave energy Storm waves Title A name given to the resource Development of a numerical code to simulate the hydrodynamic energy potential, applied at Bou Ismail bay Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Review Articles Journal of Renewable Energies Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Kaboré, Boureima Ouedraogo, Germain Wende Pouiré Kam, Sié Ousmane, Moktar Bathiébo, Dieudonné Joseph Date A point or period of time associated with an event in the lifecycle of the resource 2023-10-12 Description An account of the resource L’utilisation des échangeurs de chaleur air-sol (ECAS), pour le refroidissement des habitats connaît un développement important depuis quelques années. En zone sahélienne, la climatisation des habitats à partir des échangeurs de chaleur air-sol est une alternative dans un contexte d’insuffisance de l’énergie électrique. Dans ce travail, nous avons mené une revue de la littérature et une étude analytique de l’ECAS. Nous avons aussi présenté notre prototype expérimental mis en oeuvre à Ouagadougou. Cette étude a permis de déterminer les paramètres importants pour la mise en oeuvre d’un échangeur de chaleur air-sol. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://revue.cder.dz/index.php/rer/article/view/633 10.54966/jreen.v20i3.633 Language A language of the resource eng Publisher An entity responsible for making the resource available Renewable Energy Development Center Relation A related resource https://revue.cder.dz/index.php/rer/article/view/633/1196 Rights Information about rights held in and over the resource Copyright (c) 2021 Journal of Renewable Energies https://creativecommons.org/licenses/by-sa/4.0 Source A related resource from which the described resource is derived Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 363 - 375 Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 363 - 375 2716-8247 1112-2242 10.54966/jreen.v20i3 Subject The topic of the resource Air-soil heat exchanger Cooling Literature Experimental prototype Title A name given to the resource Echangeur de chaleur air-sol à Ouagadougou: Revue de la littérature, étude analytique et expérimentation Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Review Articles Journal of Renewable Energies Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Yannibock, Hulda Aboubakar Njintang, Yanou Nicolas Mbofung, Carl Moses Fontum Date A point or period of time associated with an event in the lifecycle of the resource 2023-10-12 Description An account of the resource This work aimed to conduct optimization method of ethanol production from using beet. To attain this objective, we propose to produce the distillation energy through biogas, and fertilizer for the culture of beet. We carried out some tests by using samples of red beets. These samples were subjected to fermentation, distillation with Vigreux column and methanization. The red beet was, a grinder, juice extractor, fermenters, fresh yeast, water, distillation device with a Vigreux column, two batch digesters, a balance and graduated containers. During the tests 376 ml of ethanol, 31 l of biogas and fertilizer evaluated at 1 kWh were obtained. The energy efficiency of production with this method stood at 58, 54 %. This discovery could be a solution to energy problems of many regions, an alternative to fossil energy while being a source of fertilizer. The proposed system does not reject waste: the carbon cycle and even that of nitrogen is closed. It is less costly and easy to put in place. He is environment friendly and has a good energetic performance. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://revue.cder.dz/index.php/rer/article/view/632 10.54966/jreen.v20i2.632 Language A language of the resource eng Publisher An entity responsible for making the resource available Renewable Energy Development Center Relation A related resource https://revue.cder.dz/index.php/rer/article/view/632/1195 Rights Information about rights held in and over the resource Copyright (c) 2021 Journal of Renewable Energies https://creativecommons.org/licenses/by-sa/4.0 Source A related resource from which the described resource is derived Journal of Renewable Energies; Vol. 20 No. 2 (2017): Volume 20 (Regular); 347 - 361 Journal of Renewable Energies; Vol. 20 No 2 (2017): Volume 20 (Regular); 347 - 361 2716-8247 1112-2242 10.54966/jreen.v20i2 Subject The topic of the resource Beet Fermentation Distillation Biogas Ethanol Fertilizer Title A name given to the resource Optimization of the use of beetroot (beta vulgaris) for the production of green energy Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Review Articles Journal of Renewable Energies Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Snani, Hamza Amarouayache, Mohamed Bouzid, Aissa Date A point or period of time associated with an event in the lifecycle of the resource 2023-10-12 Description An account of the resource To improve the performances of such perturbative maximum power point tracking (MPPT) algorithm, the real-time optimization of the algorithm designed parameters is used. Such optimization depends on the dynamic behavior of the whole photovoltaic (PV) MPPT system, and more especially, on that of the adopted dc/dc converter topology, which is used to realize the MPPT function. Therefore, the present paper shows an analytical study about the dynamic behavior of three conventional dc/dc converter topologies: boost, buck and buck-boost. For that, we establish the small-signal model for three cases of PV MPPT system that are composed each one with each of the above topologies, and then the transfer functions in the Laplace domain are drawn. In this approach, the dynamic behavior is defined by the natural frequency and damping factor parameters of the above systems. The comparison based on the variation of these two parameters, allows us having an overview about the dynamic behavior of the under study systems for the aim to implement a more efficient real-time MPPT algorithm. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://revue.cder.dz/index.php/rer/article/view/630 10.54966/jreen.v20i2.630 Language A language of the resource eng Publisher An entity responsible for making the resource available Renewable Energy Development Center Relation A related resource https://revue.cder.dz/index.php/rer/article/view/630/1194 Rights Information about rights held in and over the resource Copyright (c) 2021 Journal of Renewable Energies https://creativecommons.org/licenses/by-sa/4.0 Source A related resource from which the described resource is derived Journal of Renewable Energies; Vol. 20 No. 2 (2017): Volume 20 (Regular); 319 - 333 Journal of Renewable Energies; Vol. 20 No 2 (2017): Volume 20 (Regular); 319 - 333 2716-8247 1112-2242 10.54966/jreen.v20i2 Subject The topic of the resource Photovoltaic MPPT system Modeling dc/dc converter topologies Maximum power point (MPP) Damping factor Natural frequency Title A name given to the resource Dynamic behavior overview of three conventional dc/dc converters used in PV MPPT system Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Review Articles Journal of Renewable Energies Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Amara, Karima Amara, Yasmine Malek, Ali Hocine, Dalila Bourennane, El-Bay Date A point or period of time associated with an event in the lifecycle of the resource 2023-10-12 Description An account of the resource This paper presents simulation of a photovoltaic panel connected to a load through a boost converter. Due to the nonlinear characteristics of the PV panel and in order to increase its performance, reduce cost of the application and improve the efficiency of the photovoltaic system, maximum power point tracking algorithm is necessary. We present also an implementation of three maximum power point tracking algorithms: Perturb and Observe (P&O), Incremental Conductance (INC-COND) and Fractional Open Circuit Voltage (FOCV) which are widely studied and used in many researches papers. Experimental and simulation results are obtained using Matlab/Simulink software. The results show the efficiency of these MPPT algorithms in tracking the maximum power and its faster response to adapt to the change in irradiation condition. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://revue.cder.dz/index.php/rer/article/view/629 10.54966/jreen.v20i2.629 Language A language of the resource eng Publisher An entity responsible for making the resource available Renewable Energy Development Center Relation A related resource https://revue.cder.dz/index.php/rer/article/view/629/1193 Rights Information about rights held in and over the resource Copyright (c) 2021 Journal of Renewable Energies https://creativecommons.org/licenses/by-sa/4.0 Source A related resource from which the described resource is derived Journal of Renewable Energies; Vol. 20 No. 2 (2017): Volume 20 (Regular); 309 - 318 Journal of Renewable Energies; Vol. 20 No 2 (2017): Volume 20 (Regular); 309 - 318 2716-8247 1112-2242 10.54966/jreen.v20i2 Subject The topic of the resource PV panel Boost converter MPPT P&O INC-COND FOCV Simulation Title A name given to the resource Comparative study of three Maximum Power Point Tracking algorithms for photovoltaic modules Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Review Articles Journal of Renewable Energies Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Harrag, Abdelghani Messalti, Sabir Date A point or period of time associated with an event in the lifecycle of the resource 2023-10-12 Description An account of the resource With the world’s fastest growing rate and the prominent part of installed renewable energy sources, it is clear that wind is now a mainstream source of energy supply that will play a leading role in the proclaimed fight against climate change. But becoming mainstream means also assuming new responsibilities, including ensuring the reliable and cost-effective functioning of the overall energy system. In this context, this paper deals with the problem of extracting the wind turbine maximum power, power that depends on the random nature of wind speed and the nonlinear characteristic P = f(w) making it more difficult to extract. For this task, we propose a variable step size fuzzy maximum power point tracking controller. The proposed controller is tested on wind turbine based on a doubly-fed induction generator controlled by a field-oriented control implemented using Matlab/Simulink environment. Simulation results are presented showing a net improvement using the proposed MPPT to converge toward the optimal point with good accuracy and low oscillations around the MPP point achieving better performances. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://revue.cder.dz/index.php/rer/article/view/628 10.54966/jreen.v20i2.628 Language A language of the resource eng Publisher An entity responsible for making the resource available Renewable Energy Development Center Relation A related resource https://revue.cder.dz/index.php/rer/article/view/628/1192 Rights Information about rights held in and over the resource Copyright (c) 2021 Journal of Renewable Energies https://creativecommons.org/licenses/by-sa/4.0 Source A related resource from which the described resource is derived Journal of Renewable Energies; Vol. 20 No. 2 (2017): Volume 20 (Regular); 295 - 308 Journal of Renewable Energies; Vol. 20 No 2 (2017): Volume 20 (Regular); 295 - 308 2716-8247 1112-2242 10.54966/jreen.v20i2 Subject The topic of the resource DFIG Fuzzy logic MPPT Perturbe & Observe Tip speed ratio Wind turbine Title A name given to the resource A variable step size fuzzy MPPT controller improving energy conversion of variable speed DFIG wind turbine Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion