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Статті в журналах з теми "Commande non linéaire – Logique floue"
Dechemi, N., T. Benkaci, and A. Issolah. "Modélisation des débits mensuels par les modèles conceptuels et les systèmes neuro-flous." Revue des sciences de l'eau 16, no. 4 (April 12, 2005): 407–24. http://dx.doi.org/10.7202/705515ar.
Повний текст джерелаДисертації з теми "Commande non linéaire – Logique floue"
Aceves, Lopez Alejandro. "Nouvelle approche de la commande non linéaire sous contraintes à partir de la logique floue : le contrôleur logique naturel." Toulouse 3, 2000. http://www.theses.fr/2000TOU30139.
Повний текст джерелаGherari, Zineddine. "Stratégie de commandes neurofloues pour un système continu non linéaire." Paris 12, 1998. http://www.theses.fr/1998PA120062.
Повний текст джерелаHussain, Ayman. "Contribution à la commande adaptative robuste par modes glissants." Reims, 2008. http://theses.univ-reims.fr/exl-doc/GED00000994.pdf.
Повний текст джерелаThis thesis aims to develop a family of adaptive robust sliding modes for a large class of non-linear uncertain and disturbed. Two control laws were developed. In the first, the model system has been reformed such that all the unknown dynamics are combined in one function and then use a single approximation. In this context, fuzzy wavelet networks were first used thanks to their rapid convergence but they don’t give good results in the presence of uncertain linguistic information. To resolve this, a fuzzy system of type-2 was used. To ensure robustness against external disturbances, uncertainty and approximation errors, the sliding mode has been proposed. To reduce the stresses at the start of the signal, a non-linear was introduced. The control law is built to ensure the robustness and overall stability of the closed system in addition to it’s capacity of eliminating the phenomenon of chattering in the case of classical sliding mode. However, the choice of the gains of the sliding surface becomes complicated for systems of order greater than 2. To overcome this problem, a new control law using sliding mode has been proposed. The main advantage of this approach is that the sliding surface has been modified so that the approach has been removed which makes the system more robust and increases its speed of convergence to the reference signal. .
Passaquay, Dominique. "Modélisation et commande de processus multivariables à base de logique floue : application à la commande de moteurs thermiques." Toulouse, INSA, 2000. http://www.theses.fr/2000ISAT0022.
Повний текст джерелаManceur, Malik. "Commande robuste des systèmes non linéaires complexes." Thesis, Reims, 2012. http://www.theses.fr/2012REIMS003/document.
Повний текст джерелаThis work deals with a fuzzy tracking control design for uncertain nonlinear dynamic system withexternal disturbances and using a TS (Takagi-Sugeno) fuzzy model description. The control is basedon the Super-Twisting algorithm, which is among of second order sliding mode control. Moreover, twoadaptive fuzzy type-2 systems have been introduced to generate the two Super-Twisting signals toavoid both the chattering and the constraint on the knowledge of disturbances and uncertainties upperbounds. These adaptive fuzzy type-2 systems has only one input : the sliding surface, and one output :the optimale values of the control gains, which are hard to compute with the original algorithm.Simulation results are obtained in order to compare the performances of the proposed method tothat given by Levant. Then, we have introduced the integral sliding mode concept to impose inadvance the convergence time and the arrival on the sliding surface. The proposed approaches aregeneralized to the case of multivariable systems. Several results in simulation and in real time usinga benchmark are obtained to validate and to confirm the performances of our contributions
Raymond, Christophe. "Commande floue monovariable et multivariable selon l'expertise et par modélisation floue (méthodologie et application aux systèmes automobiles)." Phd thesis, INSA de Toulouse, 1995. http://tel.archives-ouvertes.fr/tel-00144055.
Повний текст джерелаMansouri, Badr. "Contribution à la synthèse de lois de commandes en poursuite de trajectoire pour les systèmes flous de type Takagi Sugeno incertains." Reims, 2005. http://theses.univ-reims.fr/exl-doc/GED00000426.pdf.
Повний текст джерелаThis work deals with a fuzzy tracking control design for uncertain nonlinear dynamic system with external disturbances and using a TS (Takagi-Sugeno) fuzzy model description. In this case, a recurring problem is related to the LMI (Linear Matrix Inequality) formulation. In this way, we have synthesised a robust control law for TS fuzzy perturbed systems an uncertain perturbed systems based on H¥ performances. To specify the desired trajectory and consequently to ensure the tracking trajectory, we have used a reference model. The cases with and without fuzzy observers are either treated. The obtained results are presented in two approaches, BMI (Bilinear Matrix Inquality) and LMI one. This last approach shows the effectiveness of the numerical exploitation of the results. A second approach was also developed and relates to the same problem and based on a suboptimal control. The results in this case are also reformulated directly in LMI's terms
Tillet, Joris. "Safe localization and control of a towed sensor." Thesis, Brest, École nationale supérieure de techniques avancées Bretagne, 2021. http://www.theses.fr/2021ENTA0013.
Повний текст джерелаThe oceans’ exploration becomes more and more reachable, especially thanks to robotics progress. Applications for underwater robots are plentiful. In this thesis, we particularly focus on the search of wrecks, as the Cordelière, which sank in the Bay of Brest (France) in 1512. The proposed robotic system consists of towing a magnetometer likely to detect the ferromagnetic materials of the wreck. The sensor cannot be directly embedded because it is sensitive to the perturbations from the robot. This is why it is deported. Two issues are studied to approach this system. The first one is linked to the control of the magnetometer’s position, whereas we can only act on the towing robot. A feedback linearization method is used to design a controller. Then, this controller is validated under some state constraints by using tools from interval analysis. The second issue relates to underwater localization in a reliable manner. Ways to approach uncertainties and outliers gathered by acoustic sensors are studied. The interval analysis allows to obtain first results, and the fuzzy logic completes the approach by giving more suppleness in the prioritization of the constraints. Finally, some expérimentations are presented with different robots, and especially the localization of a ROV in a pool
Bezzaoucha, Souad. "Commande tolérante aux défauts de systèmes non linéaires représentés par des modèles de Takagi-Sugeno." Phd thesis, Université de Lorraine, 2013. http://tel.archives-ouvertes.fr/tel-00948345.
Повний текст джерелаGateau, Guillaume. "Contribution à la commande des convertisseurs statiques multicellulaires série : commande non linéaire et commande floue." Toulouse, INPT, 1997. http://www.theses.fr/1997INPT100H.
Повний текст джерелаThis work deals with multicells converters control. This new static power converter structure appeared at the end of the 90's and has many interesting advantages for high voltage energy conversion. But the perfect dynamic control of the internal variables is an important objective for industrials applications. The first part of this work will be devoted to the study of the multicell structure, with its high interest in energy conversion. An average state space model of the system is given. Different classical non linear control lows are presented in the second part, in order to fit some specific dynamic requirements, very particular to this type of power converter. Thus two methods based on the input / output linearization and on the Lyapunov functions are implemented and tested. Moreover, an original estimator for the different voltages is proposed. In the third part, two differents types of Fuzzy Control of multicells converter are proposed. The first one is based on the average model and leads to classical structure and performances. The second allows the control of the converter through phase shifts variations between the differents trigger signals, but requires a fuzzy inversion of the harmonic model. Simulations results are provided for all the differents control laws on 3 or 4 cells converters. Most of them were implemented and tested through experiments
Книги з теми "Commande non linéaire – Logique floue"
Hans, Hellendoorn, and Reinfrank M. 1958-, eds. An introduction to fuzzy control. Berlin: Springer-Verlag, 1993.
Знайти повний текст джерелаHans, Hellendoorn, and Reinfrank M. 1958-, eds. An introduction to fuzzy control. 2nd ed. Berlin: Springer, 1996.
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