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Titre : Systèmes dynamiques et chaos : Différentes méthodes de contrôle et de synchronisation Type de document : texte imprimé Auteurs : Rabiaa Ouahabi, Auteur ; Nasr-Eddine Hamri, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 159 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Tags : Systèmes chaotiques Contrôle adaptatif Synchronisation projective Chaotic systems Adaptive control Projective synchronization ????? ?????? ?????? ??????? ??????? ???????? ?? ????? ?????? Index. décimale : 510 Mathématiques Résumé : In this thesis we have addressed the problem of the control and the synchronization of the dynamic chaotic systems.
This thesis is broken up into four parts. In the first part of the thesis we have given the definitions and characteristics of the dynamic and chaotic systems, leading to a definition that is going to allow to the scientists an understanding and an application more increased of the chaotic systems, one finds fundamental theoretical concepts for the analysis of the behavior and different classic methods of control of these systems.
In the second part, we discussed chaos control problems, the mathematical formulation of the control of chaotic processes. We have also proposed in this part the most reliable and well-known methods of controlling chaotic processes : the OGY method, the TDFC method, and the non-linear adaptive control method, these methods aim to improve the suppression of chaos and drive the system to converge to the desired periodic orbit or
stabilize at its fixed point.
In the last chapter of this thesis the problem of synchronization of chaotic systems was addressed, we have presented several synchronization schemes, two techniques have been presented to achieve identical synchronization where two coupled chaotic systems exhibit identical oscillations : Pecora and Carroll technique, and the second technique is based on a linear coupling.
Subsequently, a generalized synchronization method was presented. This approach is an extension of the previous phenomenon involving the presence of functional relationships between the two coupled systems.
Finally, An adaptive control scheme is designed for the modified projective synchronization (AMPS) of two chaotic systems based on Lyapunov stability theorem, in this method the drive and response systems could be synchronized up to a constant scaling matrix, a numerical examples are given to demonstrate the effectiveness of the proposed
method.
This latter method is important because it includes complete synchronization, antisynchronization and projective synchronization.
The advantage of this method is that it is applied for the synchronization of identical systems, different systems, hyperchaotic systems and uncertain systems.
Diplôme : Doctorat en sciences En ligne : ../theses/math/OUA7248.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10840 Systèmes dynamiques et chaos : Différentes méthodes de contrôle et de synchronisation [texte imprimé] / Rabiaa Ouahabi, Auteur ; Nasr-Eddine Hamri, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2018 . - 159 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : Systèmes chaotiques Contrôle adaptatif Synchronisation projective Chaotic systems Adaptive control Projective synchronization ????? ?????? ?????? ??????? ??????? ???????? ?? ????? ?????? Index. décimale : 510 Mathématiques Résumé : In this thesis we have addressed the problem of the control and the synchronization of the dynamic chaotic systems.
This thesis is broken up into four parts. In the first part of the thesis we have given the definitions and characteristics of the dynamic and chaotic systems, leading to a definition that is going to allow to the scientists an understanding and an application more increased of the chaotic systems, one finds fundamental theoretical concepts for the analysis of the behavior and different classic methods of control of these systems.
In the second part, we discussed chaos control problems, the mathematical formulation of the control of chaotic processes. We have also proposed in this part the most reliable and well-known methods of controlling chaotic processes : the OGY method, the TDFC method, and the non-linear adaptive control method, these methods aim to improve the suppression of chaos and drive the system to converge to the desired periodic orbit or
stabilize at its fixed point.
In the last chapter of this thesis the problem of synchronization of chaotic systems was addressed, we have presented several synchronization schemes, two techniques have been presented to achieve identical synchronization where two coupled chaotic systems exhibit identical oscillations : Pecora and Carroll technique, and the second technique is based on a linear coupling.
Subsequently, a generalized synchronization method was presented. This approach is an extension of the previous phenomenon involving the presence of functional relationships between the two coupled systems.
Finally, An adaptive control scheme is designed for the modified projective synchronization (AMPS) of two chaotic systems based on Lyapunov stability theorem, in this method the drive and response systems could be synchronized up to a constant scaling matrix, a numerical examples are given to demonstrate the effectiveness of the proposed
method.
This latter method is important because it includes complete synchronization, antisynchronization and projective synchronization.
The advantage of this method is that it is applied for the synchronization of identical systems, different systems, hyperchaotic systems and uncertain systems.
Diplôme : Doctorat en sciences En ligne : ../theses/math/OUA7248.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10840 Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire Contribution à la commande adaptative robuste d’une classe de systèmes non linéaires. / Nassira Zerari
Titre : Contribution à la commande adaptative robuste d’une classe de systèmes non linéaires. Type de document : texte imprimé Auteurs : Nassira Zerari, Auteur ; Mohamed Chemachema, Auteur Editeur : Constantine : Université Mentouri Constantine Année de publication : 2019 Importance : 155 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles Langues : Français (fre) Tags : Electronique:Contrôle des systèmes Réseau de neurones commande adaptative systèmes non linéaires saturation zone-morte fonction de Nussbaum Neural networks (NNs) adaptive control nonlinear systems dead-zone Nussbaum function ا ل ش ب ك ة ع ص ي ت ح م ؤ أ ن ظ خ ط ق د س و Index. décimale : 621 Electronique Résumé : The main objective of this thesis is the development of adaptive control laws for particular classes of uncertain SISO and MIMO nonlinear systems. The cases of the affine and non-affine systems, the presence of the constraints on the outputs and/or the states as well as the external perturbations are studied. Furthermore, the saturation and dead-zone inputs nonlinearities of the dynamical systems are investigated. In all the proposed approaches, the neural networks are used as universal approximators to estimate the unknown nonlinearities of the dynamical systems. The structures of the proposed controllers deal with the famous problems of explosion of complexity while avoiding the use of the traditional back-stepping technique. The proposed adaptive neural controllers have few online learning parameters compared to similar works. In addition, stability analysis of all control loops is carried out by using the Lyapunov method, and for each scheme, simulation results are given to show its effectiveness.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/ZER7603.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11038 Contribution à la commande adaptative robuste d’une classe de systèmes non linéaires. [texte imprimé] / Nassira Zerari, Auteur ; Mohamed Chemachema, Auteur . - Constantine : Université Mentouri Constantine, 2019 . - 155 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Tags : Electronique:Contrôle des systèmes Réseau de neurones commande adaptative systèmes non linéaires saturation zone-morte fonction de Nussbaum Neural networks (NNs) adaptive control nonlinear systems dead-zone Nussbaum function ا ل ش ب ك ة ع ص ي ت ح م ؤ أ ن ظ خ ط ق د س و Index. décimale : 621 Electronique Résumé : The main objective of this thesis is the development of adaptive control laws for particular classes of uncertain SISO and MIMO nonlinear systems. The cases of the affine and non-affine systems, the presence of the constraints on the outputs and/or the states as well as the external perturbations are studied. Furthermore, the saturation and dead-zone inputs nonlinearities of the dynamical systems are investigated. In all the proposed approaches, the neural networks are used as universal approximators to estimate the unknown nonlinearities of the dynamical systems. The structures of the proposed controllers deal with the famous problems of explosion of complexity while avoiding the use of the traditional back-stepping technique. The proposed adaptive neural controllers have few online learning parameters compared to similar works. In addition, stability analysis of all control loops is carried out by using the Lyapunov method, and for each scheme, simulation results are given to show its effectiveness.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/ZER7603.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=11038 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité ZER/7603 ZER/7603 Thèse Bibliothèque principale Thèses Disponible
Titre : Commande adaptative floue des systèmes non linéaires Type de document : texte imprimé Auteurs : Abdelhamid Bounemeur, Auteur ; Mohamed Chemachema, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2014 Importance : 96 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Tags : Systèmes flous (Takagi-Sugeno) Commande floue Commande non linéaire Commande adaptative Systèmes non linéaires Stabilité de Lyapunov Gain de Nussbaum Fuzzy systems (Takagi-Sugeno) Fuzzy control Nonlinear control Adaptive control Nonlinear systems Lyapunov stability Nussbaum Gain ???? ???? )?????? ??????( ?????? ?????? ?????? ??? ????? ?????? ???????? ??????? ??? ?????? ???????
???????? ????? ??? ??????Index. décimale : 621 Electronique Résumé : In this thesis, we considered the tracking control of a class of single-input single-output (SISO), and multi-input multi-output (MIMO) nonlinear uncertain systems, affine in control.
We have proposed for a single-input single-output nonlinear systems three adaptive fuzzy control schemes, the first control scheme consist to approximate the feedback linearization law, by using the fuzzy system of Takagi-Sugeno type (direct approach) the second control scheme based on the approximation of the unknown nonlinear dynamics of the system, by using two fuzzy systems of Takagi-Sugeno type (indirect approach) in the third control scheme, we kept the structure of the second proposed scheme, but with the assumption that the sign of the control gain is unknown. For multi-input multi-output systems we have proposed an indirect adaptive fuzzy control scheme. The analysis of stability and robustness of the proposed control schemes are performed by using the Lyapunov synthesis method, and for each scheme, simulation results
Diplôme : Magistère En ligne : ../theses/electronique/BOU6685.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9937 Commande adaptative floue des systèmes non linéaires [texte imprimé] / Abdelhamid Bounemeur, Auteur ; Mohamed Chemachema, Directeur de thèse . - constantine (Route ain el bey, Algérie) : Université Constantine 1, 2014 . - 96 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : Systèmes flous (Takagi-Sugeno) Commande floue Commande non linéaire Commande adaptative Systèmes non linéaires Stabilité de Lyapunov Gain de Nussbaum Fuzzy systems (Takagi-Sugeno) Fuzzy control Nonlinear control Adaptive control Nonlinear systems Lyapunov stability Nussbaum Gain ???? ???? )?????? ??????( ?????? ?????? ?????? ??? ????? ?????? ???????? ??????? ??? ?????? ???????
???????? ????? ??? ??????Index. décimale : 621 Electronique Résumé : In this thesis, we considered the tracking control of a class of single-input single-output (SISO), and multi-input multi-output (MIMO) nonlinear uncertain systems, affine in control.
We have proposed for a single-input single-output nonlinear systems three adaptive fuzzy control schemes, the first control scheme consist to approximate the feedback linearization law, by using the fuzzy system of Takagi-Sugeno type (direct approach) the second control scheme based on the approximation of the unknown nonlinear dynamics of the system, by using two fuzzy systems of Takagi-Sugeno type (indirect approach) in the third control scheme, we kept the structure of the second proposed scheme, but with the assumption that the sign of the control gain is unknown. For multi-input multi-output systems we have proposed an indirect adaptive fuzzy control scheme. The analysis of stability and robustness of the proposed control schemes are performed by using the Lyapunov synthesis method, and for each scheme, simulation results
Diplôme : Magistère En ligne : ../theses/electronique/BOU6685.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9937 Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire
Titre : Contribution à la commande adaptative optimale d’ordre fractionnaire. Type de document : texte imprimé Auteurs : Bachir Bourouba, Auteur ; Samir Ladaci, Directeur de thèse ; Abdelhafid Chaabi, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 121 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles Langues : Français (fre) Tags : Calcul fractionnaire système de commande d'ordre fractionnaire commande adaptative à modèle de référence commande optimale commande par mode glissant commande floue commande adaptative optimisation Fractional calculus Fractional order control system Model reference adaptive control Optimal control Sliding mode control Adaptive control Optimization ?????? ?????? ???? ?????? ?????? ?????? ??????? ?? ????? ????? ?????? ?? ??? ???????? ??????
?????? ?????? ??????? ???????Index. décimale : 621 Electronique Résumé : This work focuses on the introduction of optimization techniques in fractional adaptive control systems and on optimized approximation of fractional systems with reduced order models for identification and control purpose. Indeed, a new technique of approximation has been proposed in this direction, using the DE (differential evolution) technique while showing its advantage compared to other famous techniques such as those developed by Charef or Oustaloup.
Fractional adaptive control laws with optimized parameters are developed in order to improve the control system behavior: In the case of fractional order linear systems, a model reference PID control based on a new optimization algorithm (Moth-Flame) has been proposed. In the case of fractional order chaotic nonlinear systems, the following approaches are considered: a first control with adaptive sliding mode to improve performance and robustness. Since fuzzy systems are universal approximators, this property is exploited to strengthen the previous control law by an
adaptive fuzzy controller. For an optimal control, the parameters of the sliding controller are calculated by PSO optimization technique. In all the previous cases, the analysis of stability and robustness are justified by the Lyapunov approach. The theoretical results are validated by simulation examples.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/BOU7191.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10772 Contribution à la commande adaptative optimale d’ordre fractionnaire. [texte imprimé] / Bachir Bourouba, Auteur ; Samir Ladaci, Directeur de thèse ; Abdelhafid Chaabi, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2018 . - 121 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : Calcul fractionnaire système de commande d'ordre fractionnaire commande adaptative à modèle de référence commande optimale commande par mode glissant commande floue commande adaptative optimisation Fractional calculus Fractional order control system Model reference adaptive control Optimal control Sliding mode control Adaptive control Optimization ?????? ?????? ???? ?????? ?????? ?????? ??????? ?? ????? ????? ?????? ?? ??? ???????? ??????
?????? ?????? ??????? ???????Index. décimale : 621 Electronique Résumé : This work focuses on the introduction of optimization techniques in fractional adaptive control systems and on optimized approximation of fractional systems with reduced order models for identification and control purpose. Indeed, a new technique of approximation has been proposed in this direction, using the DE (differential evolution) technique while showing its advantage compared to other famous techniques such as those developed by Charef or Oustaloup.
Fractional adaptive control laws with optimized parameters are developed in order to improve the control system behavior: In the case of fractional order linear systems, a model reference PID control based on a new optimization algorithm (Moth-Flame) has been proposed. In the case of fractional order chaotic nonlinear systems, the following approaches are considered: a first control with adaptive sliding mode to improve performance and robustness. Since fuzzy systems are universal approximators, this property is exploited to strengthen the previous control law by an
adaptive fuzzy controller. For an optimal control, the parameters of the sliding controller are calculated by PSO optimization technique. In all the previous cases, the analysis of stability and robustness are justified by the Lyapunov approach. The theoretical results are validated by simulation examples.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/BOU7191.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10772 Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire
Titre : Contribution à la commmande d' ordre fractionnaire Type de document : texte imprimé Auteurs : Mohamed Assabaa, Auteur ; Abdelfatah Charef, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2015 Importance : 105 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Tags : Commande adaptative Commande adaptative à grand gain d'ordre fractionnaire Commande adaptative à modèle de référence d'ordre fractionnaire Contrôleur PID Adaptive control Fractional order high-gain adaptive control Fractional order model reference adaptive control PID controller ???? ????? ???? ????? ????? ???? ??? ???? ???? ????? ?? ????? ????? ??? ???? ??????? PID Index. décimale : 621 Electronique Résumé : Controllers based on fractional order calculus are gaining more and more interests from the control community. This type of controllers may involve fractional operators and/or fractional systems in their structure or implementation. They have been introduced in the control applications in a continuous effort to enhance the system control quality performances and robustness. In this work, new schemes of fractional order adaptive controller via high-gain output feedback for a class of linear, time-invariant, minimum phase and single input-single output systems of relative degree one have been proposed. Besides, a fractional order model has been introduced in the conventional model reference adaptive control scheme. A classical PID tuning strategy has also been presented based on a fractional order model. The basic ideas of these control designs have been presented. Some analytical stability proofs of the feedback control system have been derived. The control quality enhancement and the robustness of the proposed control schemes compared to the classical ones has been done through simulation results of illustrative examples to validate and evaluate their efficiency.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/ASS6796.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10037 Contribution à la commmande d' ordre fractionnaire [texte imprimé] / Mohamed Assabaa, Auteur ; Abdelfatah Charef, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2015 . - 105 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Tags : Commande adaptative Commande adaptative à grand gain d'ordre fractionnaire Commande adaptative à modèle de référence d'ordre fractionnaire Contrôleur PID Adaptive control Fractional order high-gain adaptive control Fractional order model reference adaptive control PID controller ???? ????? ???? ????? ????? ???? ??? ???? ???? ????? ?? ????? ????? ??? ???? ??????? PID Index. décimale : 621 Electronique Résumé : Controllers based on fractional order calculus are gaining more and more interests from the control community. This type of controllers may involve fractional operators and/or fractional systems in their structure or implementation. They have been introduced in the control applications in a continuous effort to enhance the system control quality performances and robustness. In this work, new schemes of fractional order adaptive controller via high-gain output feedback for a class of linear, time-invariant, minimum phase and single input-single output systems of relative degree one have been proposed. Besides, a fractional order model has been introduced in the conventional model reference adaptive control scheme. A classical PID tuning strategy has also been presented based on a fractional order model. The basic ideas of these control designs have been presented. Some analytical stability proofs of the feedback control system have been derived. The control quality enhancement and the robustness of the proposed control schemes compared to the classical ones has been done through simulation results of illustrative examples to validate and evaluate their efficiency.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/ASS6796.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10037 Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire
