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Статті в журналах з теми "Modèles de Takagi-Sugeno"
Heddam, Salim, Abdelmalek Bermad, and Noureddine Dechemi. "Modélisation de la dose de coagulant par les systèmes à base d’inférence floue (ANFIS) application à la station de traitement des eaux de Boudouaou (Algérie)." Revue des sciences de l’eau 25, no. 1 (March 28, 2012): 1–17. http://dx.doi.org/10.7202/1008532ar.
Повний текст джерелаCHADLI, Mohammed, and Pierre BORNE. "Multimodèles : analyse et synthèse - Commande et observation des modèles Takagi-Sugeno." Automatique et ingénierie système, March 2014. http://dx.doi.org/10.51257/a-v1-s7462.
Повний текст джерелаДисертації з теми "Modèles de Takagi-Sugeno"
Márquez, Borbόn Raymundo. "Nouveaux schémas de commande et d'observation basés sur les modèles de Takagi-Sugeno." Thesis, Valenciennes, 2015. http://www.theses.fr/2015VALE0040/document.
Повний текст джерелаThis thesis addresses the estimation and controller design for continuous-time nonlinear systems. The methodologies developed are based on the Takagi-Sugeno (TS) representation of the nonlinear model via the sector nonlinearity approach. All strategies intend to get more relaxed conditions.The results presented for controller design are split in two parts. The first part is about standard TS models under control schemes based on: 1) a quadratic Lyapunov function (QLF); 2) a fuzzy Lyapunov function (FLF); 3) a line-integral Lyapunov functions (LILF); 4) a novel non-quadratic Lyapunov functional (NQLF). The second part concerns to TS descriptor models. Two strategies are proposed: 1) within the quadratic framework, conditions based on a general control law and some matrix transformations; 2) an extension to the nonquadratic approach based on a line-integral Lyapunov function (LILF) using non-PDC control law schemes and the Finsler’s Lemma; this strategy offers parameter-dependent linear matrix inequality (LMI) conditions instead of bilinear matrix inequality (BMI) constraints for second-order systems. On the other hand, the problem of the state estimation for nonlinear systems via TS models is also addressed considering: a) the particular case where premise vectors are based on measured variables and b) the general case where premise vectors can be based on unmeasured variables. Several examples have been included to illustrate the applicability of the obtained results
Allouche, Benyamine. "Modélisation et commande des robots : nouvelles approches basées sur les modèles Takagi-Sugeno." Thesis, Valenciennes, 2016. http://www.theses.fr/2016VALE0021/document.
Повний текст джерелаEvery year more than 5 million people worldwide become hemiplegic as a direct consequence of stroke. This neurological deficiency, often leads to a partial or a total loss of standing up abilities and /or ambulation skills. In order to propose new supporting solutions lying between the wheelchair and the walker, this thesis comes within the ANR TECSAN project named VHIPOD “self-balanced transporter for disabled persons with sit-to-stand function”. In this context, this research provides some answers for two key issues of the project : the sit-to-stand assistance (STS) of hemiplegic people and their mobility through a two wheeled self-balanced solution. These issues are addressed from a robotic point of view while focusing on a key question : are we able to extend the use of Takagi-Sugeno approach (TS) to the control of complex systems ? Firstly, the issue of mobility of disabled persons was treated on the basis of a self-balanced solution. Control laws based on the standard and descriptor TS approaches have been proposed for the stabilization of gyropod in particular situations such as moving along a slope or crossing small steps. The results have led to the design a two-wheeled transporter which is potentially able to deal with the steps. On the other hand, these results have also highlighted the main challenge related to the use of TS approach such as the conservatisms of the LMIs constraints (Linear Matrix Inequalities). In a second time, a test bench for the STS assistance based on parallel kinematic manipulator (PKM) was designed. This kind of manipulator characterized by several closed kinematic chains often presents a complex dynamical model (given as a set of ordinary differential equations, ODEs). The application of control laws based on the TS approach is often doomed to failure given the large number of non-linear terms in the model. To overcome this problem, a new modeling approach was proposed. From a particular set of coordinates, the principle of virtual power was used to generate a dynamical model based on the differential algebraic equations (DAEs). This approach leads to a quasi-LPV model where the only varying parameters are the Lagrange multipliers derived from the constraint equations of the DAE model. The results were validated on simulation through a 2-DOF (degrees of freedom) parallel robot (Biglide) and a 3-DOF manipulator (Triglide) designed for the STS assistance
Gassara, Hamdi. "Analyse, commande et observation des modèles flous de type Takagi-Sugeno à état retardé." Amiens, 2011. http://www.theses.fr/2011AMIE0124.
Повний текст джерелаBainier, Gustave. "Contributions géométriques à l’étude des systèmes LPV et de Takagi-Sugeno." Electronic Thesis or Diss., Université de Lorraine, 2024. http://www.theses.fr/2024LORR0150.
Повний текст джерелаThis thesis explores nonlinear control theory using LPV (Linear Parameter-Varying) and T-S (Takagi-Sugeno) models, focusing on improving the flexibility and efficiency of these frameworks. The main contributions of this thesis concern the introduction of geometric tools that had not previously been used in these contexts. In particular, it is shown that barycentric coordinates play a key role in the modeling of T-S systems using the nonlinear sector approach (Chapter 3), and that tools inspired by simplicial complexes can also be used to obtain non-convex T-S models (Chapter 4). It is also established that Bézier interpolations provide a geometric understanding of the multi-sums involved in the T-S framework (Chapter 5). It is demonstrated that a Lipschitz assumption on the scheduling vector of a LPV system allows to bound all its potential state transition matrices in the future, leading to useful results to characterize the near-future of these systems (Chapter 6). These later results are obtained using Volterra's product integration and the weighted logarithmic norm of a matrix. Additionally, a set-membership approach is explored for fault detection purposes, using the Minkowski functional of a set (Chapter 7). Finally, the modeling of saturations and other phenomena (dead zones, hysteresis) locally affecting the actuators of a system is approached using geometric tools, such as the Minkowski functional (Chapter 8)
Cherifi, Abdelmadjid. "Contribution à la commande des modèles Takagi-Sugeno : approche non-quadratique et synthèse D -stable." Thesis, Reims, 2017. http://www.theses.fr/2017REIMS016/document.
Повний текст джерелаThis work deals with the stability analysis and the stabilisation of nonlinear systems represented by T-S models.The goal is to reduce the conservatism of the stability conditions, obtained through the direct Lyapunov methodand written, when it is possible, as LMIs. In this framework, two main contributions has been proposed. First ofall, we have proposed some new conditions based on FLICs, strictly LMIs and without any order restrictions, forthe non-quadratic design of control laws devoted to stabilize T-S models. Indeed, in this non-quadratic context,the existing works are only available for 2nd order T-S models. In order to unlock this restriction, the proposed conditions have been obtained based on the proof of a dual property. Then, starting from the fact that few worksdeals with the closed-loop performances specification, some new LMI conditions (quadratic and non-quadratic)have been proposed via the D-stability concept. As a first step, D-stabilizing PDC and non-PDC controller designhas been considered for nominal T-S models. Then, these results have been extended to uncertain T-S models.Moreover, it has been highlighted, from an example of the attitude D-stabilization of a quadrotor model, that wecan make use of uncertain T-S models to cope with nonlinear models involving nonlinearities depending on bothstate and input variables
Morère, Yann. "Mise en oeuvre de lois de commande pour les modèles flous de type Takagi-Sugeno." Valenciennes, 2001. https://ged.uphf.fr/nuxeo/site/esupversions/606b1a0a-cd9b-40f2-8292-bf560ea0af7c.
Повний текст джерелаBlanco, Yann. "Stabilisation des modèles Takagi-Sugeno et leur usage pour la commande des systèmes non linéaires." Lille 1, 2001. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/2001/50376-2001-237.pdf.
Повний текст джерелаBezzaoucha, 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 джерелаBezzaoucha, Souad. "Commande tolérante aux défauts des systèmes non linéaires représentés par des modèles de Takagi-Sugeno." Electronic Thesis or Diss., Université de Lorraine, 2013. http://www.theses.fr/2013LORR0120.
Повний текст джерелаA first contribution of this thesis is to propose a systematic procedure to deal with the state and parameter estimation for nonlinear time-varying systems. It consists in transforming the original system into a T-S model with unmeasurable premise variables using the sector nonlinearity transformation. Then a joint state and parameter observer is designed and the convergence conditions of the joint state and parameter estimation errors are established. The second contribution of this thesis is the stabilization problem under saturation constraints. In fact, we aim to present a new approach for the saturation nonlinearity study, where the sector nonlinearity transformation is used to represent the nonlinear behaviour of a saturated actuator under a T-S form. The T-S representation of the saturation is used to integrate the limitation constraints into the control synthesis, such that the system stability is ensured and the controller gains are calculated according to the saturation level. The model reference tracking control problem is also addressed. It aims to highlight the encoutered difficulties and the proposed solutions to achieve the tracking objective. Through analytical studies, by presenting clear structural conditions and control strategies, we try to point and answer some major interogations, that are : "how the model reference is to be chosen ? " and "which tracking criterion to consider to achieve a certain objective ? ". The case of constrained control input is also considered with a special focus on the anticipation for the saturated control
Ksontini, Mohamed. "Mise en oeuvre de lois de commande basées sur des multi-modèles continus de type Takagi-Sugeno." Valenciennes, 2005. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/010633b8-054b-44a7-a83b-2bf46a1dfd68.
Повний текст джерелаIn this document we dealt with the stabilization of the multi models approaches. We tried to make a link between the adaptive multi models approach and the TS approach. A new control architecture for the adaptive approach has been proposed allowing the stabilisation of the whole closed loop. A comparison about the robustness for the classical inverted pendulum shows the features of this approach. In the second part, we proposed new stabilisation conditions of TS fuzzy models allowing to reduce the number of LMI and or to reduce the conservatism of the conditions. With such conditions, we get some easy LMI conditions for systems having an important number of rules, and we also improve results given in the literature. These results are based mainly on the use of the elimination lemma. A first illustration of these conditions is carried out on a TORA system. Finally the application of these conditions on a mixture liquids system that will be useful in dimensioning a project of prototype has given good results