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Wyświetlanie 1-15 z 22
Tytuł:
Strong stability of a model of an overhead crane
Autorzy:
Conrad, F.
Mifdal, A.
Powiązania:
https://bibliotekanauki.pl/articles/205869.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
boundary control
feedback stabilization
flexible structure
Opis:
In this paper, a strong stability result is given for a model of an overhead crane which consists of a motorized platform moving along an horizontal beam with a flexible cable, holding a load mass M. A non uniform stability result is also shown.
Źródło:
Control and Cybernetics; 1998, 27, 3; 363-374
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multiobservers and their application to output stabilization
Autorzy:
Wyrwas, M.
Powiązania:
https://bibliotekanauki.pl/articles/969987.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
output feedback stabilization
multiobserver
analytic system
Opis:
A construction of multiobserver is extended to arbitrary analytic control systems without any observability property. The dynamics of the multiobserver gives an estimation of the successive derivatives of the output and the output of the multiobserver is a set that approximates the whole class of states that are indistinguishable from the current state of the original system by the control applied to the system. The dynamics of the multiobserver is used to stabilize the system with the aid of output feedback. It is done under the assumption that the system is state-feed back stabilizable and the functions used in this feedback depend smoothly on the output function and its Lie derivatives.
Źródło:
Control and Cybernetics; 2006, 35, 4; 977-995
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Remarks on the steady-state accuracy of a feedback control system
Autorzy:
Ferrante, A.
Krajewski, W.
Lepschy, A.
Viaro, U.
Powiązania:
https://bibliotekanauki.pl/articles/205550.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
feedback control systems
robustness
steady-state response
Opis:
The paper deals with the steady-state response of a feedback control system to the canonical inputs. For its characterization it seems useful to introduce the notion of accuracy index mi beside the standard notion of loop type v. This index is assumed to be equal to the power of t in the analytic expression of the canonical input that leads to a finite nonzero deviation between the actual and the desired responses. When applied in the control design procedure, the accuracy index mi allows to achieve a steady-state performance that is more satisfactory than the one obtainable with reference to the loop type only. The conditions under which a single-loop feedback control system exhibits a prescribed value of mi, given the value of v, are derived and discussed with particular regard to their robustness.
Źródło:
Control and Cybernetics; 2000, 29, 1; 51-67
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stabilization of fractional positive continuous-time linear systems with delays in sectors of left half complex plane by state-feedbacks
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/969916.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
fractional
positive
continuous-time
linear
system
state-feedback
stabilization
Opis:
The problem of stabilization of fractional positive linear continuous-time linear systems with delays by state-feedbacks is addressed. The gain matrix of the state feedback is chosen so that the zeros of the closed-loop polynomial are located in a sector of the left half of complex plane. Necessary and sufficient conditions for the solvability of the problem are established and a procedure for computation of a gain matrix of the feedback is proposed. The considerations are illustrated by a numerical example.
Źródło:
Control and Cybernetics; 2010, 39, 3; 783-795
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stabilization of multivariable linear time-invariant systems by proportional-plus-derivative state feedback
Autorzy:
Kiritsis, Konstadinos H.
Powiązania:
https://bibliotekanauki.pl/articles/31342764.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
stabilization
proportional-plus-derivative state feedback
linear time-invariant systems
Opis:
This paper is devoted to the study of the problem of stabilization by proportional-plus-derivative state feedback for multivariable linear time-invariant systems. In particular, explicit necessary and sufficient conditions are established for the stability of a closed-loop system obtained by proportional-plus-derivative state feedback from the given multivariable linear time-invariant system. A procedure is given for the computation of stabilizing proportional- plus-derivative state feedback. Our approach is based on properties of real and polynomial matrices.
Źródło:
Control and Cybernetics; 2023, 52, 1; 53-77
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An application of feedback linearization to the tracking and almost disturbance decoupling control of nonlinear system with uncertainties
Autorzy:
Chen, C.-C.
Huang, Y.-C
Lin, W.-J.
Shen, D.-C.
Huang, L.-A.
Powiązania:
https://bibliotekanauki.pl/articles/970382.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
almost disturbance decoupling
feedback linearizable
differential geometry approach
composite Lyapunov approach
Opis:
This paper studies the tracking and almost disturbance decoupling problem of nonlinear systems with uncertainties, based on the feedback linearization approach. The main contribution of this study is to construct a controller, under appropriate conditions, such that the resulting closed-loop system is valid for any initial condition and bounded tracking signal with the following characteristics: input-to-state stability with respect to disturbance inputs and almost disturbance decoupling, i.e., the influence of disturbances on the L2 norm of the output tracking error can be arbitrarily attenuated by changing some adjustable parameters. Two examples, which cannot be solved by the first paper on the almost disturbance decoupling problem, are proposed in this paper to exploit the fact that the tracking and the almost disturbance decoupling performances are easily achieved by the proposed approach. In order to demonstrate the practical applicability, the paper has investigated the AMIRA ball and beam system.
Źródło:
Control and Cybernetics; 2007, 36, 2; 385-403
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
From optimal control to non-cooperative differential games: a homotopy approach
Autorzy:
Bressan, A.
Powiązania:
https://bibliotekanauki.pl/articles/970911.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
optimal control
non-cooperative differential games
Nash equilibrium solution
optimal feedback control
Opis:
We propose a new approach to the study of Nash equilibrium solutions to non-cooperative differential games. The original problem is embedded in a one-parameter family of differential games, where the parameter 0 ∈ [0,1] accounts for the strength of the second player. When 0 = 0, the second player adopts a myopic strategy and the game reduces to an optimal control problem for the first player. As 0 becomes strictly positive, Nash equilibrium solutions can be obtained by studying a bifurcation problem for the corresponding system of Hamilton-Jacobi equations.
Źródło:
Control and Cybernetics; 2009, 38, 4A; 1081-1106
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Normalization of transfer matrix of linear systems by feedbacks
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/205721.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
macierz przenoszenia
normalizacja
sprzężenie zwrotne
system liniowy
feedback
linear system
normalization
transfer matrix
Opis:
The transfer matrix T(s) = C [Ins - A]^-1 B of a linear system x = Ax + Bu, y = Cx can be always written in the standard form T(s) = P(s)/d(s), where P(s) is the polynomial matrix and d(s) is the minimal common denominator. The irreducible transfer matrix is called normal if every nonzero second order minor of P(s) is divisible by d(s). It is shown that for an unnormal transfer matrix of the controllable system there exists a state-feedback gain matrix K such that the closed-loop system transfer matrix T(s) = C[Ins - (A + BK)]^-1 B is normal. In the case of the output-feedback the closed-loop transfer matrix Tc(s) = C (Ins - (A + BFC)]^-1 B can be made normal only if the system is controllable and observable.
Źródło:
Control and Cybernetics; 2002, 31, 1; 67-78
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Single stage algorithms for pole placement using static output feedback
Autorzy:
Kuźmiński, K.
Krawiecki, M.
Powiązania:
https://bibliotekanauki.pl/articles/970929.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
generalized inverse
time-invariant linear systems
static output feedback
pole placement
Kronecker product
Opis:
Paper presents effective formulae, enabling transfer matrix pole assignment. This is accomplished by the use of generalized matrix inverses and the Kronecker product. All the desired pole distributions are covered - namely simple and multiple, real and complex. On this basis one-stage algorithms were developed, avoiding commonly used reduced orthogonality condition. Computational example of the presented algorithms is given.
Źródło:
Control and Cybernetics; 2007, 36, 4; 939-969
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of undamped second order systems with dynamic feedback
Autorzy:
Mitkowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/970462.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
stabilność asymptotyczna
stabilizacja ze sprzężeniem zwrotnym
sieć łańcuchowa
asymptotic stability
feedback stabilization
ladder network
Opis:
In this paper the stabilization problem of undamped second order system is considered. The stabilization by first order dynamic feedback is studied. The global asymptotic stability of the respectively closed-loop system is proved by LaSalle's theorem. As an example of application of the proposed method an electric ladder network L and Ic type is presented. Numerical calculations were made using the Matlab/Simulink program.
Źródło:
Control and Cybernetics; 2004, 33, 4; 563-572
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reachability and controllability of 2D positive linear systems with state feedbacks
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/205758.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
sterowalność
teoria sterowania
układ liniowy
controllability
positive 2D Roesser model
reachability
state-feedback
Opis:
It is shown that the reachability and controllability of positive 2D linear systems are not invariant under the state-feedbacks. By suitable choice of the state-feedbacks the unreachable positive 2D Roesser model can be made reachable and the controllable positive 2D Roesser model can be made uncontrollable.
Źródło:
Control and Cybernetics; 2000, 29, 1; 141-151
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High-gain feedback and sliding modes in infinite dimensional systems
Autorzy:
Levaggi, L.
Powiązania:
https://bibliotekanauki.pl/articles/970418.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
system nieskończenie wymiarowy
zaburzenia osobliwe
infinite dimensional systems
high-gain feedback
singular perturbations
sliding modes
Opis:
This paper focuses on the connection between sliding motions and low frequency modes of high-gain feedback systems in an infinite dimensional framework. We study a particular class of abstract control systems in a Hilbert space setting and analyse their high-gain behaviour through singular perturbations. We show that the "slow" motion derived from the reduced model approximates the evolution of the closed loop after a fast transient. Moreover we prove a relation between this slow component of the high-gain feedback system and sliding motions, in the spirit, of the analogous result in the finite dimensional setting by Young, Kokotovic and Utkin (Young et al., 1977).
Źródło:
Control and Cybernetics; 2004, 33, 1; 33-50
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improved fuzzy feedback linearization and Sinswat-transformation control of inverted pendulum
Autorzy:
Chien, T. L.
Chen, C. C.
Chen, Y. C.
Wu, S. L.
Powiązania:
https://bibliotekanauki.pl/articles/970222.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
fuzzy logic control
almost disturbance decoupling
feedback linearization approach
composite Lyapunov approach
inverted pendulum control system
Opis:
This paper studies the output tracking and almost disturbance decoupling problem of nonlinear control systems with uncertainties via fuzzy logic control and feedback linearization approach. The main contribution of this study is to construct a controller, under appropriate conditions, such that the resulting closed-loop system enjoys for any initial condition and bounded tracking signal the following characteristics: input-to-state stability with respect to disturbance inputs and almost disturbance decoupling, i.e., the influence of disturbances on the L2 norm of the output tracking error can be arbitrarily attenuated by increasing some adjustable parameters. The underlying theoretical approaches are the differential geometry approach and the composite Lyapunov approach. One example, which cannot be solved by the approach from the first paper (Marino et al., 1989) on the almost disturbance decoupling problem, is proposed in this paper to exploit the fact that the almost disturbance decoupling and the convergence rate performances are easily achieved by virtue of our approach. In order to demonstrate the practical applicability, the paper takes up the study of an inverted pendulum control system.
Źródło:
Control and Cybernetics; 2010, 39, 4; 1069-1093
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Holdability and stabilizability of 2D Roesser model
Zadanie utrzymywania i stabilizowalności dla dwuwymiarowego modelu Roessera
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/206705.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
utrzymywanie
dwuwymiarowy model Roessera
sprzężenie zwrotne względem stanu
stabilizowalność
holdability
2D Roesser model
state-feedback
stabilizability
Opis:
The holdability and stabilizability problem of 2D Roesser model is formulated and solved. Conditions for the existence of solution to the problem are established. Two procedures for computation of a gain matrix of the state-feedback are proposed and illustrated by a numerical example.
Sformułowano i rozwiązano zadanie utrzymywania i stabilizowalności dla dwuwymiarowego modelu Roessera. Ustalono warunki istnienia rozwiązania tego zadania. Zaproponowano dwie procedury wyliczania macierzy przejścia w pętli sprzężenia zwrotnego względem stanu i zilustrowano je przykładem numerycznym.
Źródło:
Control and Cybernetics; 2003, 32, 1; 75-86
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pole assignment by feedback control of the second order coupled singular distributed parameter systems
Autorzy:
Ge, Z.
Powiązania:
https://bibliotekanauki.pl/articles/970460.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
sterowanie ze sprzężeniem zwrotnym
feedback control
pole assignment
coupled singular distributed parameter systems
generalized inverse one of operator
Opis:
Pole assignment by feedback control of the second order coupled singular distributed parameter systems is discussed via functional analysis and operator theory in Hilbert space. The solutions of the problem and the constructive expression of the solutions are given by the generalized inverse one of bounded linear operator. This research is theoretically important for studying the stabilization and asymptotical stability of tlie second order coupled singular distributed parameter systems.
Źródło:
Control and Cybernetics; 2004, 33, 4; 551-562
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 22

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