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Auteur Rachid Chenni |
Documents disponibles écrits par cet auteur
Affiner la recherche Interroger des sources externesArchitectures intégrées de gestion de l'énergie pour les multisystèmes autonomes utilisant le stockage par accumulateurs. / Bouthaina Madaci
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 ???? ?????? ??????? ??????? ???????(PV) ?????? ????? ?????? PEM ???????? ????? ?????? 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 : https://bu.umc.edu.dz/md/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 . - [S.l.] : 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 ???? ?????? ??????? ??????? ???????(PV) ?????? ????? ?????? PEM ???????? ????? ?????? 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 : https://bu.umc.edu.dz/md/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 ?????? ????? ???? ???? ???? ???? ????????? ??????? ?????? ????????? ???????? ??????? ????? ?????? 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 : https://bu.umc.edu.dz/md/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 . - [S.l.] : 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 ?????? ????? ???? ???? ???? ???? ????????? ??????? ?????? ????????? ???????? ??????? ????? ?????? 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 : https://bu.umc.edu.dz/md/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 ; Universite de Constantine, Editeur 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 : https://bu.umc.edu.dz/md/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 ; Universite de Constantine, Editeur 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 : https://bu.umc.edu.dz/md/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 : Etude et optimisation d’un multi systeme hybride de conversion d’energie electrique Type de document : texte imprimé Auteurs : Abdelhalim Borni, Auteur ; Rachid Chenni, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2015 Importance : 125 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Electro-techniqueTags : Modelisation et commande des machines électrique Index. décimale : 622 Electro-Technique Résumé : This thesis deals with the application of hybrid output connected to the grid which are composed of a wind turbine, a photovoltaic source, and a unit for a fuel cell for energy continuity. A simple and cost control with DC-DC converter is used to extract the maximum power from wind and photovoltaic sources. Due to the intermittent of these two energy sources, the nature of photovoltaic and wind, a fuel cell unit is added to the system in order to ensure a flow of direct current. The fuel cell is thus controlled to provide power deficit when combined wind and solar sources cannot meet the demand of the net power. A complete description of this system is presented with simulation results that demonstrate its feasibility.
A tracking algorithm of the maximum power calculates the reference speed, which is corresponding to the maximum power output of the turbine, as a control signal for the DC-DC converter. The optimization of our system in this setting by PI, fuzzy logic (RLF) , fuzzy PI (RLF-PI)and sliding mode that maximizes the maximum power point (MPP) of a photovoltaic system, the speed control system wind and control the active and reactive power of the grid.
Diplôme : Doctorat en sciences En ligne : ../theses/electrotec/BOR6726.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9897 Etude et optimisation d’un multi systeme hybride de conversion d’energie electrique [texte imprimé] / Abdelhalim Borni, Auteur ; Rachid Chenni, Directeur de thèse . - constantine (Route ain el bey, Algérie) : Université Constantine 1, 2015 . - 125 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Electro-techniqueTags : Modelisation et commande des machines électrique Index. décimale : 622 Electro-Technique Résumé : This thesis deals with the application of hybrid output connected to the grid which are composed of a wind turbine, a photovoltaic source, and a unit for a fuel cell for energy continuity. A simple and cost control with DC-DC converter is used to extract the maximum power from wind and photovoltaic sources. Due to the intermittent of these two energy sources, the nature of photovoltaic and wind, a fuel cell unit is added to the system in order to ensure a flow of direct current. The fuel cell is thus controlled to provide power deficit when combined wind and solar sources cannot meet the demand of the net power. A complete description of this system is presented with simulation results that demonstrate its feasibility.
A tracking algorithm of the maximum power calculates the reference speed, which is corresponding to the maximum power output of the turbine, as a control signal for the DC-DC converter. The optimization of our system in this setting by PI, fuzzy logic (RLF) , fuzzy PI (RLF-PI)and sliding mode that maximizes the maximum power point (MPP) of a photovoltaic system, the speed control system wind and control the active and reactive power of the grid.
Diplôme : Doctorat en sciences En ligne : ../theses/electrotec/BOR6726.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9897 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOR/6726 BOR/6726 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude et réalisation d'un système d'orientation et de conversion destiné à optimiser le rendement d'un système photovoltaïque. Type de document : texte imprimé Auteurs : Mohamed Redha Rezoug, Auteur ; Rachid Chenni, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 188 f. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Electro-techniqueTags : système photovoltaïque orientation tracking modélisation de la trayectoire du soliel traqueur actif à boucle ouvert traqueur à deux axes poursuite hybride les IMU magnetométre optimisation par MPPT Pero FLC MLI PWM ??????? ??????? ????? ?????? ????? ?????? ?????? ?????? ?????? ?????? ?????? ??? ???? ????? ?????? ????? Index. décimale : 622 Electro-Technique Diplôme : Doctorat en sciences En ligne : ../theses/electrotec/REZ7303.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10918 Etude et réalisation d'un système d'orientation et de conversion destiné à optimiser le rendement d'un système photovoltaïque. [texte imprimé] / Mohamed Redha Rezoug, Auteur ; Rachid Chenni, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2018 . - 188 f.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Electro-techniqueTags : système photovoltaïque orientation tracking modélisation de la trayectoire du soliel traqueur actif à boucle ouvert traqueur à deux axes poursuite hybride les IMU magnetométre optimisation par MPPT Pero FLC MLI PWM ??????? ??????? ????? ?????? ????? ?????? ?????? ?????? ?????? ?????? ?????? ??? ???? ????? ?????? ????? Index. décimale : 622 Electro-Technique Diplôme : Doctorat en sciences En ligne : ../theses/electrotec/REZ7303.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10918 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité REZ/7303 REZ/7303 Thèse Bibliothèque principale Thèses Disponible Permalink
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