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Auteur Rachid Chenni |
Documents disponibles écrits par cet auteur (13)
Affiner la recherche Interroger des sources externesAmélioration de la chute de tension sur réseau BT par l'apport d'un générateur hybride PV/Eolien. / Adel Soualmia
Titre : Amélioration de la chute de tension sur réseau BT par l'apport d'un générateur hybride PV/Eolien. Type de document : texte imprimé Auteurs : Adel Soualmia, Auteur ; Rachid Chenni, Directeur de thèse Mention d'édition : 26/11/2020 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2020 Importance : 164 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Chute de tension Réseau BT PV-Eolien Impact Voltage drop LV network PV-Wind السقوط في الجهد شبكة منخفضة الجهد كهروضوئي طاقة رياح التأثير Index. décimale : 621 Electronique Résumé :
Voltage drop at the ends of a grid is a paramount concern of the electrical distributor. In a urban low-voltage network, the voltage quality will be unacceptable when voltage drop surpasses5℅. Among techniques used to ameliorate the network quality, setup of new MV / LV substations, strengthening the sections of the conductors. The connection of the hybrid PV-wind turbine mini power station to the power grid is a promise solution to offset the deficit point voltage. In this thesis, a concrete case study of connection-impact of energy based on a hybrid PV-wind turbine mini power station on rural LV network is presented. The LV network located in the in the daira of Heddada located in Souk Ahras, north east Algeria is studied.Diplôme : Doctorat en sciences En ligne : ../theses/electronique/SOU7696.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11530 Amélioration de la chute de tension sur réseau BT par l'apport d'un générateur hybride PV/Eolien. [texte imprimé] / Adel Soualmia, Auteur ; Rachid Chenni, Directeur de thèse . - 26/11/2020 . - جامعة الإخوة منتوري قسنطينة, 2020 . - 164 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Chute de tension Réseau BT PV-Eolien Impact Voltage drop LV network PV-Wind السقوط في الجهد شبكة منخفضة الجهد كهروضوئي طاقة رياح التأثير Index. décimale : 621 Electronique Résumé :
Voltage drop at the ends of a grid is a paramount concern of the electrical distributor. In a urban low-voltage network, the voltage quality will be unacceptable when voltage drop surpasses5℅. Among techniques used to ameliorate the network quality, setup of new MV / LV substations, strengthening the sections of the conductors. The connection of the hybrid PV-wind turbine mini power station to the power grid is a promise solution to offset the deficit point voltage. In this thesis, a concrete case study of connection-impact of energy based on a hybrid PV-wind turbine mini power station on rural LV network is presented. The LV network located in the in the daira of Heddada located in Souk Ahras, north east Algeria is studied.Diplôme : Doctorat en sciences En ligne : ../theses/electronique/SOU7696.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11530 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité SOU/7696 SOU/7696 Thèse Bibliothèque principale Thèses Disponible
Titre : Architectures intégrées de gestion de l'énergie pour les multisystèmes autonomes utilisant le stockage par accumulateurs. Type de document : texte imprimé Auteurs : Bouthaina Madaci, Auteur ; Rachid Chenni, Directeur de thèse ; Kamel Eddine Hemsas, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 114 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Electro-techniqueTags : système d‟énergie hybride photovoltaïque éolien pile à combustible système de stockage gestion d‟énergie commande simulation MPPT hybrid power system photovoltaic wind fuel cell storage system power management control نظام الطاقة الهجينة الالواح الضوئية(PV) الرياح خلاية الوقود PEM البطارية تسيير الطاقة التحكم Index. décimale : 622 Electro-Technique Résumé : Because of the global growth in energy demand, and because of the problems posed by fossil fuels, t : he depletion of these resources and the environmental problems caused
by the emission of gases, renewable energy sources (photovoltaic, wind ...) represent an interesting alternative for the electrification of isolated sites. However, these
sources have a disadvantage of being dependent on weather conditions. In order to reduce fluctuations in production caused by the random nature of these resources and to
satisfy the requirements of the load the solution to be retained is the assembly of the different sources of electric power generation.
This work is a contribution to the study of an autonomous hybrid energy system, which consists of systems: photovoltaic (PV), wind, PEM fuel cell and a storage system on
several aspects: modeling, supervision and simulation. Energy storage is a key factor in an isolated site hybrid energy system. However, it is characterized by a very limited
lifespan and high cost. In order to avoid its degradation by deep discharges or overloads on the one hand and on the other hand to optimally manage the energy obtained
from the various available energy resources, a management strategy based on The state of charge of the battery (SOC) is designed to control the proposed autonomous
multi-source system. Where PV and wind systems are considered primary sources, while the PEMFC and the battery are used as emergency sources, the electrolysis is used
to consume the excess power available when the battery is fully charged.
The modeling and simulation of the PV and wind systems were presented with an MPPT command to maximize the power delivered. To maintain the DC bus voltage at its
reference value, a modified control algorithm is proposed which requires the control of the bidirectional converter to DC / DC current between the battery and the DC bus.
The results obtained with the Matlab / Simulink software show the efficiency of the various commands used.
Diplôme : Doctorat En ligne : ../theses/electrotec/MAD7231.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10801 Architectures intégrées de gestion de l'énergie pour les multisystèmes autonomes utilisant le stockage par accumulateurs. [texte imprimé] / Bouthaina Madaci, Auteur ; Rachid Chenni, Directeur de thèse ; Kamel Eddine Hemsas, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 114 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Electro-techniqueTags : système d‟énergie hybride photovoltaïque éolien pile à combustible système de stockage gestion d‟énergie commande simulation MPPT hybrid power system photovoltaic wind fuel cell storage system power management control نظام الطاقة الهجينة الالواح الضوئية(PV) الرياح خلاية الوقود PEM البطارية تسيير الطاقة التحكم Index. décimale : 622 Electro-Technique Résumé : Because of the global growth in energy demand, and because of the problems posed by fossil fuels, t : he depletion of these resources and the environmental problems caused
by the emission of gases, renewable energy sources (photovoltaic, wind ...) represent an interesting alternative for the electrification of isolated sites. However, these
sources have a disadvantage of being dependent on weather conditions. In order to reduce fluctuations in production caused by the random nature of these resources and to
satisfy the requirements of the load the solution to be retained is the assembly of the different sources of electric power generation.
This work is a contribution to the study of an autonomous hybrid energy system, which consists of systems: photovoltaic (PV), wind, PEM fuel cell and a storage system on
several aspects: modeling, supervision and simulation. Energy storage is a key factor in an isolated site hybrid energy system. However, it is characterized by a very limited
lifespan and high cost. In order to avoid its degradation by deep discharges or overloads on the one hand and on the other hand to optimally manage the energy obtained
from the various available energy resources, a management strategy based on The state of charge of the battery (SOC) is designed to control the proposed autonomous
multi-source system. Where PV and wind systems are considered primary sources, while the PEMFC and the battery are used as emergency sources, the electrolysis is used
to consume the excess power available when the battery is fully charged.
The modeling and simulation of the PV and wind systems were presented with an MPPT command to maximize the power delivered. To maintain the DC bus voltage at its
reference value, a modified control algorithm is proposed which requires the control of the bidirectional converter to DC / DC current between the battery and the DC bus.
The results obtained with the Matlab / Simulink software show the efficiency of the various commands used.
Diplôme : Doctorat En ligne : ../theses/electrotec/MAD7231.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10801 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MAD/7231 MAD/7231 Thèse Bibliothèque principale Thèses Disponible
Titre : Conception et intégration d’un nouveau piezo-generateur et d’un système de stockage hybride batteries-supercondensateurs pour la génération et l’amélioration de la qualité d’énergie électrique Type de document : texte imprimé Auteurs : Yahia Bouzelata, Auteur ; Rachid Chenni, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 208 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Electro-techniqueTags : piézoélectricité générateur PZT circuits d’extraction stokage hypride batteries supercondensateur qualité d'énergie piezoelectric PZT generator extraction circuit hybrid storage Battery-supercapacitor energy quality الكهرو ضغطية مولد كهرو ضغطي دارة الاستخراج التخزين الهجين البطاريات المكثفات العالية نوعية الطاقة Index. décimale : 622 Electro-Technique Résumé : A large number of studies have been published in the last decade on the possibility of harvesting vibratory energy using piezoelectricity as a conversion mechanism. Several aspects have been studied ranging from different electromechanical models through harvester forms maximizing performance to electrical circuits allowing an improvement of the harvesting energy. By spreading through the distribution electrical networks, the problem of harmonic pollution is becoming more and more worrying with the increasing use of electronic components and nonlinear loads, which leads to harmful consequences and therefore a malfunction of several devices sensitive to this kind of problems. Active power filtering is one of the most effective solutions to this problem. The contribution that brings this thesis, in the energy harvester and improvement field, consists to design a new optimal wind vibratory energy harvester using piezoelectric elements. The work of this thesis revolves around five objectives:
1. Design and experimental validation of a power generator based on piezoelectric
transduction and wind flow.
2. Development of an analytical model to predict the performances and explain the chosen
geometry of the piezoelectric wind energy harvester.
3. Development of an energy extraction circuit to maximize the harvested power by the
piezoelectric elements and adapt the generated voltages to a high level.
4. Design of a hybrid supercapacitors batteries system to store the harvested energy by the
wind piezoelectric generator and provide the power difference when an active power
imbalance occurs in the harvester system.
5. Development of an active filter compensation model based on piezoelectric harvester not only to mitigate the harmonic currents and voltages in the distribution electrical networks but also to compensate the reactive power on the source side.
In order to meet these objectives, at the beginning, we started with a reminder of the potential sources of harvested energy and the different conversion types including piezoelectric conversion and we have established a state of the art of the energy harvesting from piezoelectric elements. Then we presented theoretical notions of piezoelectricity followed by a detailed study of the piezoelectric phenomenon in order to use it in a vibratory energy harvesting structure and we have exposed a state of the art of piezoelectric generators with a macroscopic structure. Next, we have described bimetallic piezoelectric type structure as an example of application. After that, we presented the design, modeling, and the description of the proposed wind piezoelectric harvester, and we have established a literature review of the different generators models based on piezoelectric transduction and wind flow. In addition, the experimental validation of the piezoelectric generator model constituting our original contribution for that a large space was reserved for the presentation of the design process, fabrication and experimental assembly of the device after having developed a special analytical model. Besides, we showed how the extraction of the harvested energy can be conceived in order to maximize the power and adapt the generated voltages to the different electrical uses and how the storage of energy can be reached by a hybrid supercapacitors batteries system in a piezoelectric transduction mode. In the last step, we presented globally the problem of harmonics and the active filters as an effective solution. In addition, on the one hand, we applied a group of 8 identical PZT generators to the parallel active filter for current harmonics compensation, and on the other hand, we associated a group of 8 GEPZT to the series active filter to react against voltage harmonics and in the target to demonstrate its flexibility with piezoelectric systems.
Diplôme : Doctorat En ligne : ../theses/electrotec/BOU7382.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11032 Conception et intégration d’un nouveau piezo-generateur et d’un système de stockage hybride batteries-supercondensateurs pour la génération et l’amélioration de la qualité d’énergie électrique [texte imprimé] / Yahia Bouzelata, Auteur ; Rachid Chenni, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 208 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Electro-techniqueTags : piézoélectricité générateur PZT circuits d’extraction stokage hypride batteries supercondensateur qualité d'énergie piezoelectric PZT generator extraction circuit hybrid storage Battery-supercapacitor energy quality الكهرو ضغطية مولد كهرو ضغطي دارة الاستخراج التخزين الهجين البطاريات المكثفات العالية نوعية الطاقة Index. décimale : 622 Electro-Technique Résumé : A large number of studies have been published in the last decade on the possibility of harvesting vibratory energy using piezoelectricity as a conversion mechanism. Several aspects have been studied ranging from different electromechanical models through harvester forms maximizing performance to electrical circuits allowing an improvement of the harvesting energy. By spreading through the distribution electrical networks, the problem of harmonic pollution is becoming more and more worrying with the increasing use of electronic components and nonlinear loads, which leads to harmful consequences and therefore a malfunction of several devices sensitive to this kind of problems. Active power filtering is one of the most effective solutions to this problem. The contribution that brings this thesis, in the energy harvester and improvement field, consists to design a new optimal wind vibratory energy harvester using piezoelectric elements. The work of this thesis revolves around five objectives:
1. Design and experimental validation of a power generator based on piezoelectric
transduction and wind flow.
2. Development of an analytical model to predict the performances and explain the chosen
geometry of the piezoelectric wind energy harvester.
3. Development of an energy extraction circuit to maximize the harvested power by the
piezoelectric elements and adapt the generated voltages to a high level.
4. Design of a hybrid supercapacitors batteries system to store the harvested energy by the
wind piezoelectric generator and provide the power difference when an active power
imbalance occurs in the harvester system.
5. Development of an active filter compensation model based on piezoelectric harvester not only to mitigate the harmonic currents and voltages in the distribution electrical networks but also to compensate the reactive power on the source side.
In order to meet these objectives, at the beginning, we started with a reminder of the potential sources of harvested energy and the different conversion types including piezoelectric conversion and we have established a state of the art of the energy harvesting from piezoelectric elements. Then we presented theoretical notions of piezoelectricity followed by a detailed study of the piezoelectric phenomenon in order to use it in a vibratory energy harvesting structure and we have exposed a state of the art of piezoelectric generators with a macroscopic structure. Next, we have described bimetallic piezoelectric type structure as an example of application. After that, we presented the design, modeling, and the description of the proposed wind piezoelectric harvester, and we have established a literature review of the different generators models based on piezoelectric transduction and wind flow. In addition, the experimental validation of the piezoelectric generator model constituting our original contribution for that a large space was reserved for the presentation of the design process, fabrication and experimental assembly of the device after having developed a special analytical model. Besides, we showed how the extraction of the harvested energy can be conceived in order to maximize the power and adapt the generated voltages to the different electrical uses and how the storage of energy can be reached by a hybrid supercapacitors batteries system in a piezoelectric transduction mode. In the last step, we presented globally the problem of harmonics and the active filters as an effective solution. In addition, on the one hand, we applied a group of 8 identical PZT generators to the parallel active filter for current harmonics compensation, and on the other hand, we associated a group of 8 GEPZT to the series active filter to react against voltage harmonics and in the target to demonstrate its flexibility with piezoelectric systems.
Diplôme : Doctorat En ligne : ../theses/electrotec/BOU7382.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11032 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/7382 BOU/7382 Thèse Bibliothèque principale Thèses Disponible
Titre : Contribution à l'amélioration de l'électrocardiogramme : modélisation des signaux cardiaques et du complexe QRS Type de document : texte imprimé Auteurs : Rachid Chenni ; Univ. de Constantine, Éditeur scientifique ; Malek Benslama, Directeur de thèse Année de publication : 1996 Importance : 108 f. Note générale : 1 Disponible au magasin de la bibliothèque centrale Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Eléctrocardiogramme Signal cardiaque Index. décimale : 621 Electronique Diplôme : Magistère En ligne : ../theses/electronique/CHE2926.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=2565 Contribution à l'amélioration de l'électrocardiogramme : modélisation des signaux cardiaques et du complexe QRS [texte imprimé] / Rachid Chenni ; Univ. de Constantine, Éditeur scientifique ; Malek Benslama, Directeur de thèse . - 1996 . - 108 f.
1 Disponible au magasin de la bibliothèque centrale
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Eléctrocardiogramme Signal cardiaque Index. décimale : 621 Electronique Diplôme : Magistère En ligne : ../theses/electronique/CHE2926.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=2565 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité CHE/2926 CHE/2926 Thèse Bibliothèque principale Thèses Disponible
Titre : Contribution à la réalisation d’un suiveur solaire et d’une commande MPPT hybride dédiés aux applications photovoltaïques. Type de document : texte imprimé Auteurs : Kheireddine Dib, Auteur ; Rachid Chenni, Directeur de thèse Mention d'édition : 12/11/2019 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2019 Importance : 149 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Electronique: Instrumentation Panneau photovoltaïque MPPT P&O MPPT FSCC MPPT FOCV Suiveur solaire Position du soleil Arduino Microcontrôleur Photovoltaic panel P&O MPPT FSCC MPPT FOCV MPPT Sun tracker Sun Position Arduino Microcontroller اللوح الكهروضوئي FOCV MPPTلمتتبع الشمسي وضعية الشمس متحكم الاردونو Index. décimale : 621 Electronique Résumé :
The aim of this thesis is to optimize the photovoltaic energy generation and its use. Impedance adaptation between photovoltaic panel generator and its load means the complete transfer of available energy from source to the use. In order to increase quantity of solar energy received on photovoltaic panel surface and consequently the energy produced, we implemented a sun tracker system commanded and controlled by a hybrid tracking strategy that combines the calculation of sun position and light sensors. The results obtained have shown that the use of a solar tracker considerably increases the power received at the surface of the modules and consequently energy that can produce. Forcing a photovoltaic module to work continuously at its maximum power requires the integration of an adaptation stage that‟s controlled by a MPPT technique. This is why
we have proposed a hybrid P & O technique assisted by two techniques based on the measurement of open circuit voltage and short circuit current. The simulation results obtained were validated by experimental results obtained using an Arduino Uno microcontroller and sensors that go with it
Note de contenu : Annexe.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/DIB7574.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11412 Contribution à la réalisation d’un suiveur solaire et d’une commande MPPT hybride dédiés aux applications photovoltaïques. [texte imprimé] / Kheireddine Dib, Auteur ; Rachid Chenni, Directeur de thèse . - 12/11/2019 . - جامعة الإخوة منتوري قسنطينة, 2019 . - 149 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Electronique: Instrumentation Panneau photovoltaïque MPPT P&O MPPT FSCC MPPT FOCV Suiveur solaire Position du soleil Arduino Microcontrôleur Photovoltaic panel P&O MPPT FSCC MPPT FOCV MPPT Sun tracker Sun Position Arduino Microcontroller اللوح الكهروضوئي FOCV MPPTلمتتبع الشمسي وضعية الشمس متحكم الاردونو Index. décimale : 621 Electronique Résumé :
The aim of this thesis is to optimize the photovoltaic energy generation and its use. Impedance adaptation between photovoltaic panel generator and its load means the complete transfer of available energy from source to the use. In order to increase quantity of solar energy received on photovoltaic panel surface and consequently the energy produced, we implemented a sun tracker system commanded and controlled by a hybrid tracking strategy that combines the calculation of sun position and light sensors. The results obtained have shown that the use of a solar tracker considerably increases the power received at the surface of the modules and consequently energy that can produce. Forcing a photovoltaic module to work continuously at its maximum power requires the integration of an adaptation stage that‟s controlled by a MPPT technique. This is why
we have proposed a hybrid P & O technique assisted by two techniques based on the measurement of open circuit voltage and short circuit current. The simulation results obtained were validated by experimental results obtained using an Arduino Uno microcontroller and sensors that go with it
Note de contenu : Annexe.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/DIB7574.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11412 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité DIB/7574 DIB/7574 Thèse Bibliothèque principale Thèses Disponible Permalink
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