Showing 1-25 of 160,435 resultsfor "Index Terms":Delay systems
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Stability and Stabilization of Delayed T--S Fuzzy Systems: A Delay Partitioning Approach
This paper proposes a new approach, namely, the delay partitioning approach, to solving the problems of stability analysis and stabilization for continuous time-delay Takagi-Sugeno fuzzy systems. Based on the idea of delay fractioning, a new method is proposed for the delay-dependent stability analysis of fuzzy time-delay systems. Due to the instrumental idea of delay partitioning, the proposed st...Show More
Adaptive fuzzy control for a class of nonlinear time-varying delay systems
2008 7th World Congress on Intelligent Control and Automation
Year: 2008 | Conference Paper |
Cited by: Papers (2)
The adaptive fuzzy control problem is considered for a class of uncertain SISO nonlinear time-varying delay systems in a Brunovsky form. The upper bound of the unknown time-varying delay term is assumed to be in the form of nonlinear functions with unknown coefficients. An adaptive fuzzy controller is designed by utilizing the integral-type Lyapunov function and constructing a continuous function....Show More
Simple Cascade Observer for a Class of Nonlinear Systems With Long Output Delays
This note proposes a cascade observer for a class of nonlinear systems with global Lipschitz nonlinearities in the presence of delayed output measurements. The head of the cascade is a high gain observer while the remaining systems are state predictors providing an estimate of the actual state. The key feature of the proposed observer is the introduction of a matrix design parameter that allows to...Show More
Truncated Predictor Feedback for Periodic Linear Systems With Input Delays With Applications to the Elliptical Spacecraft Rendezvous
This paper considers truncated predictor feedback (TPF) stabilization of periodic linear systems with time-varying input delays with its applications to the elliptical spacecraft rendezvous. By carefully investigating the solutions and properties to a class of parametric Lyapunov differential equations, it is proved that TPF controllers can stabilize the periodic linear time-delay systems with arb...Show More
Stability Analysis and Design of Impulsive Control Systems With Time Delay
A class of impulsive control systems with time-varying delays is considered. By establishing an impulsive delay differential inequality, we analyze the global exponential stability of the impulsive delay systems and estimate the exponential convergence rate. On the basis of the analysis, a design procedure of impulsive controller is presented. The designed impulsive controller not only can globall...Show More
Stability Analysis of Linear Discrete Time Delay System Based on Power Method
2022 41st Chinese Control Conference (CCC)
Year: 2022 | Conference Paper |
In literature [1], Ahmed JABALLI et al. used the JSH transformation to provide necessary and sufficient conditions to analyze stability of linear discrete-time delay system with a single delay, but their proof process is very complex. In this paper, necessary and sufficient conditions obtained in [1] are extended to the case of linear discrete-time delay system with multiple delays, and the proof ...Show More
Robust Controller Design of Uncertain Systems with Interval Time-varying Input Delay
2006 International Conference on Mechatronics and Automation
Year: 2006 | Conference Paper |
Cited by: Papers (4)
This paper is concerned with the robust stabilization and controller design for uncertain systems with interval time-varying input delay. The uncertainties of the system is unknown time-varying but norm-bounded, the input delay varies in an interval. A robust stabilizing condition and the controller design method can be constructed easily by solving a LMI. The auxiliary variables and generalized s...Show More
On Delay-Independent Stability and Guaranteed Convergence Rate for Linear Time-Varying Continuous-Time Delay Systems
2023 62nd IEEE Conference on Decision and Control (CDC)
Year: 2023 | Conference Paper |
Cited by: Papers (1)
This work deals with linear continuous-time systems with delays, in the general case of time-varying matrices. We first consider the special case of positive systems of such class, introducing two different conditions of delay-independent global exponential stability formulated by means of linear inequalities. Moreover, guaranteed bounds on the exponential convergence rate are given as a function ...Show More
Delay-dependent Stabilization of Singular Linear Continuous-time Systems with Time-varying State and Input Delays
2007 IEEE International Conference on Control and Automation
Year: 2007 | Conference Paper |
Cited by: Papers (4)
The descriptor integral-inequality method is a new method to deal with the delay-dependent stabilization problem for singular linear continuous-time systems with time-varying state and input delays. Delay dependent stabilization conditions are established by using the Lyapunov-Krasovskii functional approach combined with an descriptor integral-inequality. An LMI based algorithm to design a memoryl...Show More
This paper considers output regulation of linear time-varying delay systems. By introducing the integral inequality and reciprocal convex combination approach to constructed an augmented Lyapunov-Krasovskii functional, a new delay-dependent stability criteria is presented based on strict linear matrix inequalities (LMIs). The solvabiltiy problem of the output regulation equation with time-varying ...Show More
Stability Analysis and Stabilization for Discrete-Time Fuzzy Systems With Time-Varying Delay
This paper is concerned with the problems of stability analysis and stabilization for discrete-time Takagi-Sugeno fuzzy systems with time-varying state delay. By constructing a new fuzzy Lyapunov function and by making use of novel techniques, an improved delay-dependent stability condition is obtained, which is dependent on the lower and upper delay bounds. The merit of the proposed stability con...Show More
New Theorem for Asymptotically Stability of Time-Delayed Systems
2009 Second International Symposium on Knowledge Acquisition and Modeling
Year: 2009 | Conference Paper |
This paper deals with the problem of the asymptotical stability for a class of linear systems with multiple time-delays. Using Lyapunov-Razumikhin theorem and the concept of matrix norm, the sufficient conditions of delay-independent stability and delay-dependent stability are derived to ensure that the linear systems with multiple time-delays are asymptotically stable. By comparing with the prese...Show More
Fuzzy Neural-Based Control for Nonlinear Time-Varying Delay Systems
In this paper, a partially known nonlinear dynamic system with time-varying delays of the input and state is approximated by fuzzy-based linear subsystems described by a state-space model with average delay. To shape the response of the closed-loop system, a set of fuzzy reference models is established. Similarly, the same fuzzy sets of the system rule are employed to design a fuzzy neural-based c...Show More
Uniform Stability of Discrete Delay Systems and Synchronization of Discrete Delay Dynamical Networks via Razumikhin Technique
In this paper, we consider discrete delay systems and obtain conditions for global uniform exponential stability. Our approach is based on the use of the Razumikhin technique and the Lyapunov function method. In the second part of the paper, we use our stability results to derive exponential synchronization criteria for discrete dynamical networks with coupling time delays. We explicitly consider ...Show More
Semi-algebraic problem approach for stability analysis of a class of nonlinear stochastic delay system
2008 American Control Conference
Year: 2008 | Conference Paper |
In this paper we give a delay dependent stability criterion for stochastic delay systems with polynomial nonlinearity. An important benefit of this result is that when an invariant set of the system is available, we can incorporate this information to reduce the conservativeness. The resulting condition is given in terms of a semi-algebraic problem which is known to be efficiently solvable via sum...Show More
Positive observation problem for linear time-delay positive systems
2007 Mediterranean Conference on Control & Automation
Year: 2007 | Conference Paper |
Cited by: Papers (65)
This paper deals with the problem of positive observation for linear time-delay systems for which the states take nonnegative values whenever the initial conditions are nonnegative. We focus on the design of positive observers (possibly with time-delay) which guarantee nonnegative estimates of the current states. We derive necessary and sufficient conditions for the existence of a positive observe...Show More
Comparison of time delay processing methods in control system
2015 4th International Conference on Computer Science and Network Technology (ICCSNT)
Year: 2015 | Conference Paper |
Cited by: Papers (6)
Time delay exists in the actual control system and presents some difficulties in processing of transfer function for process control. Approximation for time delay is commonly used in control system. This paper analyses the effects of different approximation including Taylor, Pade and all-pole approximation for different orders closed loop system. Second order Pade approximation can fit the time de...Show More
Robust H∞ filtering for neutral stochastic uncertain delay systems
2010 Chinese Control and Decision Conference
Year: 2010 | Conference Paper |
This paper studies the design problem of robust H∞ filter for neutral stochastic uncertain delay systems. Aiming at neutral stochastic delay systems with polytopic uncertainty, we deduce sufficient conditions of the existence of H∞ filter, and express them into a form of the linear matrix inequality (LMI), then utilize schur complement lemma transformed them into LMIs which can be solved. At last ...Show More
Damping Power System Electromechanical Oscillations Using Time Delays
This paper proposes to utilize intentional time delays as part of controllers to improve the damping of electromechanical oscillations of power systems. Through stability theory, the control parameter settings for which these delays in Power System Stabilizers (PSSs) improve the small signal stability of a power system are systematically identified, including the key parameter settings for which s...Show More
Stability Analysis of Coupled Differential-Difference Systems With Multiple Time-Varying Delays:A Positivity-Based Approach
Vittorio De Iuliis;Alessandro D’Innocenzo;Alfredo Germani;Costanzo Manes
This article introduces novel results on linear coupled differential-difference systems with multiple time-varying delays. First, necessary and sufficient conditions for the positivity and delay-independent asymptotic stability of such systems are introduced. Then, exploiting the internally positive representation technique, we show how such stability results can be systematically exported to non-...Show More
Stability analysis for a class of nonlinear time-delay systems via Hamiltonian functional method
2010 8th World Congress on Intelligent Control and Automation
Year: 2010 | Conference Paper |
Cited by: Papers (1)
This paper investigates the stability of a class of nonlinear time-delay systems, and proposes a number of new results. Firstly, an equivalent time-delay Hamiltonian system is obtained for this class of systems by means of the generalized Hamiltonian realization (GHR). Then, based on the equivalent form, several sufficient conditions in term of matrix inequalities are derived for the stability ana...Show More
A New Predictive Approach for Bilateral Teleoperation With Applications to Drive-by-Wire Systems
IEEE Transactions on Robotics
Cited by: Papers (85)
In this paper, a new predictive approach is proposed for the impedance control of bilateral drive-by-wire teleoperation systems. The proposed control structure includes two mirror predictors/observers in both the master and slave sides. These predictors/observers are used to simultaneously estimate the master and slave internal dynamics, and thereby to avoid the use of the delayed transmitted info...Show More
Fault Detection Filter Design For Networked Control System With Communication Delays
Sixth International Conference on Intelligent Systems Design and Applications
Year: 2006 | Conference Paper |
Cited by: Papers (17)
In this paper, we studied fault detection filter design problem for a class of linear networked control systems with communication delays. The communication delays can be modeled as a random Markov jump process with a finite number of states. We demonstrated that a fault detection observer can be developed to detect the fault occurrence for the system, and a LMI-based fault detection algorithm for...Show More
Improved delay-dependent stability criteria for continuous linear systems with multiple time delays
Proceedings of the 32nd Chinese Control Conference
Year: 2013 | Conference Paper |
In this paper, the stability problem of continuous linear systems with multiple time delays is investigated. An augmented Lyapunov functional is introduced to establish improved delay-dependent stability criteria. It is shown that some recently published results are the special cases considered here. Then the proposed criterion is extended to the single delay case. An illustrative example is given...Show More
Pseudo-predictor feedback stabilization of linear systems with time-varying input delays
Proceedings of the 33rd Chinese Control Conference
Year: 2014 | Conference Paper |
This paper is concerned with stabilization of (time-varying) linear systems with a single time-varying input delay by using the predictor based delay compensation approach. Differently from the traditional predictor feedback which uses the open-loop system dynamics to predict the future state and will result in an infinite dimensional controller, we propose in this paper a pseudo-predictor feedbac...Show More
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