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This paper presents a control design for the irrigation station by sprinkling. The proposed method is applied in order to solve the problem of managing water sources and distributions systems. This paper presents the synthesis of a Backstepping control applied to the station of irrigation by sprinkling, Based on Lyapunov function, this method has the advantage of Stability conditions of the proposed...
Quadratic approach for the stability analysis of multi-models such as Takagi-Sugeno fuzzy systems leads in many cases to conservative results. However, it is shown that nonquadratic approach was an alternative to properly reduce the conservatism and to give more relaxations to the stability and stabilization conditions of fuzzy systems. This paper presents firstly some relaxed stabilization conditions...
This paper addressed the analysis and design of a sliding mode observer for a class of uncertain nonlinear systems. We continue to work in [1] that proposed an approach to design the sliding mode control of same system using the control law obtained to analyze our sliding mode observer. The main idea of the paper is the development of a robust observer with respect to the uncertainties parametric...
In this paper, a sliding mode control algorithm based on Takagi-Sugeno (T-S) fuzzy model for a class of nonlinear systems is discussed. For a complex physical system represented by an aggregated fuzzy global model which compromises a set of linear models, conditions for the fuzzy sliding mode control to stabilize the global fuzzy model are given. Firstly, we choose the sliding surface which gives...
A fuzzy c-regression model clustering algorithm based on Bias-Eliminated Least Squares method (BELS) is presented. This method is designed to develop an identification procedure for noisy nonlinear systems. The BELS method is used to identify consequent parameters and eliminate the bias. The proposed approach has been applied to benchmark modeling problem which proved a good performance.
This paper proposes an approach to design sliding mode control for a class of uncertain nonlinear systems, where the uncertainty is a norm bounded type. Firstly, we choose the sliding surface which gives a good behaviour during sliding mode. It is formulated as an assignment of the poles of uncertain nonlinear system in a convex optimization area. Secondly, we design a nonlinear control law leading...
In this work we interest to nonlinear systems tracking control using a multiple model approach based on a switching procedure. Two switching techniques based control schemes are considered: by “select” or by “weighted combination”. The main difference consists to the way that the global control law, applied to the system, is computed. The switched control law by “select” consists to the selection...
The purpose of the work presented in this paper is to design a multi-control scheme for nonlinear systems based on multi-observers and a switching procedure. The concept of the multi-control approach is to design N local linear controllers, each is designed to control the system in a specific operating area. The switcher selects one local controller. This selection is performed by a supervisor consists...
In this paper the problem of nonlinear system identification is investigated from a new point of view. If the nonlinear system is affected by measurement noise and if the noise cluster is arbitrarily far away, then there is no way to guarantee that any clustering algorithm will select the best cluster instead of the bad one. The proposed methodology is based to adding a noise cluster to clustering...
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