نتایج جستجو برای: robust control
تعداد نتایج: 1501862 فیلتر نتایج به سال:
The celebrated small-gain approach to robust control only makes use of the gain information of uncertainty. This results in a limitation on the achievable control bandwidth in system design. On the other hand, the alternative passivity approach has only limited applications. To relax the limitations associated with small-gain and passivity approaches, we explore the possibility of utilizing bot...
In this paper, a new adaptive robust control scheme is developed for a class of uncertain dynamical systems with time-varying state delay, unknown parameters and disturbances. By incorporating adaptive techniques into the robust control method, we propose a continuous adaptive robust controller which guarantees the uniform boundedness of the system and at the same time, the regulating error ent...
In this paper, we propose a robust visual feedback controller with integral action for tracking control of n-link robot manipulators in the presence of constant bounded parametric uncertainties. The proposed control input has robustness to the parametric uncertainty and reduces tracking error in the steady-state. The stability of the closed-loop system is shown by Lyapunov method. The effective...
Find a state or output feedbac:k wlth flxed gains such that nlce stabllity (deflned by a regloo in tbe elgenvalue plane) ls robust wlth respect to !arge plant parameter varladoos, semor failures, and quantlzatJon effects in tbe controller. Keep tbe requlred magnltude of control Inputs smail in thls deslgn. A tool for tacldJ.ng suc:h problems by des1gB in tbe controller parameter space % ls intr...
The main objective of applying robust active control to base-isolated structures is to protect them in the event of an earthquake. Taking advantage of discontinuous control theory, a static discontinuous active control is developed using as a feedback only the measure of the velocity at the base. Moreover, due to that in many engineering applications, accelerometers are the only devices that pr...
It is a pleasure to help honor my friends and former colleagues Dale Henderson, Dick Porter, and Peter Tinsley, by discussing Williams' fine paper and the important ongoing research program to which it contributes, all of which is very much in the Henderson-Porter-Tinsley tradition of path-breaking application of optimal control methods to the conduct of monetary policy. The recent robust contr...
In this paper we will show that contouring performance can be viewed as a regulation problem in a curvilinear task coordinate frame that is attached to the desired contour. By transforming the machine tool feed drive dynamics to this task coordinate frame, an adaptive robust control (ARC) law is derived to improve the contouring performance under system parameter variation and bounded disturban...
This paper solves the stabilization problem for positive linear discrete-time systems subject to time-delays, under state and control constraints. The synthesis of state-feedback stabilizing controllers is solved in terms of Linear Programming. The proposed approach deals with the stabilization with bounded controls and states, in the presence of possibly unknown delays. Also, the robust contro...
A second order sliding mode control algorithm is presented for robust control of the liquid level in a pair of interconnected tanks. The controller is implemented on a laboratory rig. The implementation results show robustness to parameter variations such as tank area, the admittance coefficients of various pipes, leakage in the tanks and uncertainty in the pump dynamics. The potential of secon...
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