Browsing by Keywords "Delay control systems"
Now showing items 1-17 of 17
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Design of a switched robust control scheme for drug delivery in blood pressure regulation
(Elsevier B.V., 2016)A control algorithm based on switching robust controllers is presented for a Linear Parameter Varying (LPV) time-delay system modeling automatic infusion of vasodilator drug to regulate postsurgical hypertension. The system ... -
Explicit time-delay compensation in teleoperation: an adaptive control approach
(John Wiley and Sons Ltd, 2016)This paper proposes a control framework that addresses the destabilizing effect of communication time delays and system uncertainties in telerobotics, in the presence of force feedback. Force feedback is necessary to obtain ... -
Independent estimation of input and measurement delays for a hybrid vertical spring-mass-damper via harmonic transfer functions
(IFAC, 2015-06)System identification of rhythmic locomotor systems is challenging due to the time-varying nature of their dynamics. Even though important aspects of these systems can be captured via explicit mechanics-based models, it ... -
Numerical computation of H∞ optimal controllers for time delay systems using YALTA
(Elsevier B.V., 2016)Numerical computation of H∞ controllers for time delay systems has been a challenge since 1980s. Even though significant techniques are developed to obtain direct optimal controllers, application of these methods may require ... -
A numerical method for stability windows and unstable root-locus calculation for linear fractional time-delay systems
(Elsevier, 2012-08-14)This paper aims to provide a numerical algorithm able to locate all unstable poles, and therefore the characterization of the stability as a function of the delay, for a class of linear fractional-order neutral systems ... -
Observer based friction cancellation in mechanical systems
(IEEE, 2014-10)An adaptive nonlinear observer based friction compensation for a special time delayed system is presented in this paper. Considering existing delay, an available Coulomb observer is modified and closed loop system is formed ... -
On Smith predictor-based controller design for systems with integral action and time delay
(IEEE, 2013-06)A new Smith predictor based controller is proposed for systems with integral action and flexible modes under input-output time-delay. The design uses controller parametrization and aims to achieve a set of performance and ... -
On the H∞ controller design for a magnetic suspension system model
(Elsevier, 2013)This paper deals with the H∞ optimal controller design for a magnetic suspension system model derived in Knospe and Zhu [2011], with added input/output delay. The plant is a fractional order system with time delay i.e., ... -
On the stabilization and stability robustness against small delays of some damped wave equations
(IEEE, 1995)In this note we consider a system which can be modeled by two different one-dimensional damped wave equations in a bounded domain, both parameterized by a nonnegative damping constant. We assume that the system is fixed ... -
Remarks on H ∞ controller design for SISO plants with time delays
(2006-07)The skew Toeplitz approach is one of the well developed methods to design H ∞ controllers for infinite dimensional systems. In order to be able to use this method the plant needs to be factorized in some special manner. ... -
Robust adaptive posicast controller
(IFAC, 2015)Adaptive Posicast Controller that is robust to delay-mismatch is introduced in this paper. Inspired from a recent result on guaranteed delay margins in adaptive control, the original adaptive laws of the above mentioned ... -
A secant condition for cyclic systems with time delays and its application to Gene Regulatory Networks
(IFAC, 2015)A stability condition is derived for cyclic systems with time delayed negative feedback. The result is an extension of the so-called secant condition, which is originally developed for systems without time delays. This ... -
Sensitivity minimization by stable controllers: an interpolation approach for suboptimal solutions
(IEEE, 2007)Weighted sensitivity minimization is studied within the framework of strongly stabilizing (stable)H∞controller design for a class of infinite dimensional systems. This problem has been solved by Ganesh and Pearson, [8], ... -
Stability analysis of human–adaptive controller interactions
(American Institute of Aeronautics and Astronautics (AIAA), 2017)In this paper, stability of human in the loop model reference adaptive control architectures is analyzed. For a general class of linear human models with time-delay, a fundamental stability limit of these architectures is ... -
Stability analysis of switched time-delay systems
(IEEE, 2008-12)This paper addresses the asymptotic stability of switched time delay systems with heterogenous time invariant time delays. Piecewise Lyapunov-Razumikhin functions are introduced for the switching candidate systems to ... -
Stability windows and unstable root-loci for linear fractional time-delay systems
(Elsevier, 2011)The main point of this paper is on the formulation of a numerical algorithm to find the location of all unstable poles, and therefore the characterization of the stability as a function of the delay, for a class of linear ... -
A switching control approach to stabilization of parameter varying time delay systems
(IEEE, 2009)Robust stabilization problem is considered for time varying time delay systems, where the system parameters are scheduled along a measurable signal trajectory. A switching control approach is proposed for a class of parameter ...
