Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
This paper addresses stabilization problem with decay rate analysis for discrete-time linear systems subject to actuator saturation. The saturation-dependent Lyapunov function is exploited to propose new stability conditions by introducing additional slack variables. Especially, elimination Lemma is used to show the stable property of one slack variable. If the stable slack variable is specified a...
In this paper, the problems of relaxed robust quadratic stability conditions for a class of nonlinear systems described by T-S fuzzy model are proposed. Firstly, new quadratic robust stability condition is obtained by designing state feedback controller for T-S fuzzy systems with uncertainties. The condition is represented in the form of linear matrix inequalities (LMIs). Secondly, it presents dynamic...
This paper deals with the finite-time stability problem for continuous-time linear time-varying systems with finite jumps. This class of systems arises in many practical applications and includes, as particular cases, impulsive systems and sampled-data control systems. The paper provides a necessary and sufficient condition for finite-time stability, requiring a test on the state transition matrix...
In this paper, a new active fault tolerant control (FTC) strategy for linear parameter varying (LPV) systems is proposed. The key contribution of the proposed approach is an integrated FTC design procedure of the fault identification and fault-tolerant control schemes using LPV techniques. Fault identification is based on the use of an observer. Once the fault have been identified, the FTC controller...
Based on the robust invariant set, Hinfin controller designing problem for uncertain discrete time-delay system with disturbance and input constraint is considered in this paper. At first, a state feedback controller was designed, when the disturbance belongs to a convex polytope, a control invariant set was derived based on the revised Lyapunov Krasovskii function, and inside this control invariant...
In industrial world, direct drives are more and more used and rise up new control issues when parameter variations occur. New methods have been created, however, high cost computer and expert is often needed to implement them. In this paper, state feedback controller optimized by linear quadratic principle are shown up. These methods achieve cost requirement cause they provide lighter regulators with...
This paper presents an output feedback controller design method for continuous time Takagi-Sugeno (T-S) fuzzy systems, using a fuzzy Lyapunov function. The proposed output feedback fuzzy controller is made up of a fuzzy state feedback controller based on a fuzzy Lyapunov functions and fuzzy observer based on a common quadratic Lyapunov function. Each of the observer and controller is designed separately...
In this paper, the quantized state feedback H∞ control problem for discrete-time linear time-invariant (LTI) systems is studied. The quantizers considered here are dynamic and time-varying. Firstly, taking quantization errors into account, a state feedback controller is designed. Then, by using the designed controller, a state-dependent control strategy is proposed with updating quantizer's parameter,...
The problem of robust constrained model predictive control (MFC) of systems with polytopic uncertainty is considered in this paper. New sufficient conditions for the existence of parameter-dependent Lyapunov functions are proposed in terms of linear matrix inequalities (LMIs), which will reduce the conservativeness resulting from using a single Lyapunov function. At each sampling instant, the corresponding...
In this paper, we design a robust controller for rotary double inverted pendulum (RDIP) using linear matrix inequalities (LMIs) to stabilize the system regardless of some parametric uncertainties and input disturbances. In addition, the minimization of value of a given criterion function must be considered. The advantage of LMIs is that the design problem can be cast as convex problems such as an...
This paper is concerned with the problem of robust Hinfin control for a class of uncertain nonlinear Markovian jump systems described by the Takagi-Sugeno (T-S) fuzzy models. The aim is to find a mode-dependent state feedback controller such that the closed-loop fuzzy jump system is robustly stochastically stable and a prescribed Hinfin performance level is satisfied for all admissible uncertainties...
A speed regulation scheme is investigated for spark-ignition (SI) engine with alternator. In the case that the magnetic torque variation with the irregular operations of the electric loads is treated as the measurable disturbance, a state feedback controller with the magnetic torque feedforward is designed to regulate the engine speed. The approximate algorithm is also discussed for the implementation...
Preliminary results are presented for developing a scheduling approach for anti-windup control design. The results include state feedback controllers, though generalization to many important classes of dynamic output feedback appears reasonably straight forward. The main idea is to devise a family of controllers that can be used to override the nominal controller, depending on the response of the...
This paper addresses the design and implementation of different controllers on a 1/10 scaled flexible structure experiment of a metro vehicle car body. The particular controller design methods investigated are state vector feedback control combined with a Kalman-filter and the mu-synthesis procedure. Using experimental data it is shown, that with both design methods the structural response to disturbances...
A sliding mode control method is proposed for a class of multiply input and multiply output (MIMO) linear singular systems with unmatched uncertainties. Firstly, the singular system is transformed into the normal system by a derivative state feedback controller under the assumption that system is strong controllable. And then a terminal sliding mode manifold is designed and the control law is driven...
Voltage sags have become a major power quality issue encountered by industries in recent years. The voltage sag compensator, based on the transformer-coupled series-connected voltage source inverter, is among the most cost-effective solution to protect sensitive loads. Many voltage sag compensators adopt open-loop control strategies to increase the response speed for the sag compensation. But the...
This paper studies on delay-dependent robust H∞ control for uncertain linear systems with time-varying delays both in state and input. Based on an integral inequality, the sufficient condition of the existence for the state feedback controller is presented in terms of LMI, by means of Lyapunov-Krasovskii functional approach; it is proved that the new criterion does not require any assumptions about...
In this write-up, a novel approach for the design of a digital state feedback controller for the speed control of slip energy recovery system employing a wound rotor induction machine is proposed using digital redesign approach. The state feedback controllers for digital implementation are suitably redesigned in such a way that the discrete-time-system response and continuous-time response match at...
The main objective of this paper is to design a fast, non-expensive and practical controller for tower cranes. The controllers are designed to transfer the loads from point to point, as fast as possible, and at the same time the load swing is kept small during the transfer process. Moreover, variations of the system parameters such as cable length are taken into consideration. It is shown how the...
In this paper, the robust stabilizer with Riccati equations is applied to vehicle longitudinal system design. In our design, even if the uncertainties exist in vehicle systems, the designed observer and state feedback controller can stabilize the systems for any given initial conditions. In this method, Riccati equations are solved for finding positive-definite symmetry matrices to construct the observer...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.