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This paper presents a robust optimal nonlinear control scheme for a three-phase inverter, which is connected to the utility grid through an L filter. The control objective is the regulation of the active and reactive power injected to the utility grid. The optimal controller synthesis is based on the optimal control theory, where it is considered the minimization of a performance index (cost functional),...
In this paper, we stablish robustness of discrete-time inverse optimal control for nonlinear systems trajectory tracking; we analyze in detail disk margin which includes sector and gain margins. We illustrate the applicability of this result by means of a linear induction motor example.
This paper introduces a class of fixed-time stable dynamical systems with settling time as a explicit parameter, namely the inverse the gain. Those systems are defined as predefined-timed stable dynamical systems. Continuous and discontinuous are cases are presented. A detailed Lyapunov characterization of this class of systems is also shown. Finally, the application to the design of a class of first...
In this paper, one method of robust control based on sliding mode and fuzzy logic techniques is presented. It combines hierarchical control with high gain approach for multivariable and nonlinear systems; in order to eliminate chattering in presence of disturbances. Simulation results are presented to illustrate the applicability of the approach.
This paper designs the central finite-dimensional H∞ filter for linear stochastic systems with integral-quadratically bounded deterministic disturbances, that is sub-optimal for a given threshold γ with respect to a modified Bolza-Meyer quadratic criterion including the attenuation control term with the opposite sign. The original H∞ filtering problem for a linear stochastic system is reduced to the...
This paper designs the central finite-dimensional H∞ controller for linear stochastic time-varying systems with integral-quadratically bounded deterministic disturbances, that is suboptimal for a given threshold γ with respect to a modified Bolza-Meyer quadratic criterion including the attenuation control term with the opposite sign. In contrast to the previously obtained results, the paper reduces...
One key goal of current Computer Vision research activities is to provide robust systems for improving Transport safety through the use of Information Technology. Recent advances allow public environments (such as train stations or, simply, the street) under video surveillance to be modelled by means of the detection, tracking, and identification of the different elements in it (passengers, road,...
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