One of the most attractive and important field of chaos theory is control of chaos. In this paper, we try to present a simple framework for chaotic motion control using the feedback linearization method. Using this approach, we derive a strategy, which can be easily applied to the other chaotic systems. This task presents two novel results: the desired periodic orbit need not be a solution of t...

Despite the recent advances in robust control theory, the robust performance problem formulated in the mixed H2/Hm framework largely remains an open problem. In this approach, one seeks a controller that minimizes the Hz norm of a closed-loop map over all admissible controllers while satisfying an H , constraint on another closed-loop map. Unlike the optimal H Z problem or the y-level sub-optim...

In this paper, an approach for the computation of bounds on parametric model uncertainty for robust control design is proposed. The approach uses μ sensitivities to identify which uncertain parameters in the model are most critical in terms of closed-loop robustness objectives. Using skewed μ analysis tools, the maximum possible uncertainty bounds for model parameters which are most difficult o...

A simple but robust control law for the grasping manipulation of deformable objects is presented. In the handling of deformable objects, grasping and manipulation must be performed simultaneously despite uncertainties during the handling process. We will propose a control law to perform grasping and manipulation of deformable objects using a realtime vision system.

Titre : CONTROL OF SAFETY FACTOR PROFILE IN PLASMAS OF TOKAMAK IN INFINITE DIMENSION The increasing energy needs of the world population require the development, the control and the supply of new forms of energy. In this context, nuclear fusion is a track of extremely promising research. World project ITER is intended to prove the scientific and technical feasibility of nuclear fusion. One of t...

This paper deals with feedback controller synthesis for timed event graphs in dioids, where the number of initial tokens and time delays are only known to belong to intervals. The synthesis presented here is mainly based on dioid, interval analysis and residuation theory. keyword Discrete-event systems ; Timed event graphs ; Dioid ; Interval analysis ; Residuation theory ; Feedback synthesis

In this paper, we design a robust lead compensator for a real Electromechanical Actuator (EMA) harmonic drive by introducing an approach based on H∞ control theory. Here, we address three main topics; experimental identification, uncertainty modelling, and robust control design for a real EMA harmonic drive system. This method verifies good tradeoff between the powerful H∞ controller and the un...

We propose a model validation procedure that consists of a prediction error identi6cation experiment with a full order model. It delivers a parametric uncertainty ellipsoid and a corresponding set of parameterized transfer functions, which we call prediction error (PE) unceminty set. Such uncertainty set differs from the classical uncertainty descriptions used in robust control analysis and des...

In this paper, the dynamic model of a three-level neutral point clamped (NPC) converter with neutral-point voltage-balance control (NPVBC) and input power factor correction for high-speed railway tractions is derived. And accordingly, a feedback controller is designed to meet the given voltage regulation control specifications. As the variation of converter parameters occurs, a compensation sig...

In this paper we give a necessary and suÆcient condition for an Internal Model Control (IMC) structure to be robustly L2 stable with respect to H1 bounded model uncertainty and in presence of input saturation. This condition is used for the design of a controller that is the best H1 approximation to \perfect" linear control among all controllers guaranteeing L2 stability in the presence of actu...