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Wyszukujesz frazę "delay systems" wg kryterium: Temat


Wyświetlanie 1-7 z 7
Tytuł:
Algebraic observability of linear differential–algebraic systems with delay
Autorzy:
Zaczkiewicz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/205605.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
observability
differential-algebraic systems
time-delay
Opis:
The paper deals with the problem of algebraic observability for linear differential-algebraic systems with delay. For such systems, we present the observability matrix. By algebraic properties of the matrix we define some concepts of observability. We give necessary and sufficient conditions of these algebraic observabilities. We prove relations between these types of observabilities along with spectral observability. Practical verifiability of the conditions is demonstrated on several examples.
Źródło:
Control and Cybernetics; 2013, 42, 2; 491-502
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Observability of small solutions of linear differential-algebraic systems with delays
Autorzy:
Zaczkiewicz, Z.
Marchenko, V.
Powiązania:
https://bibliotekanauki.pl/articles/969989.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
observability
small solutions
differential-algebraic systems
time-delay
Opis:
In this paper we investigate observability of small solutions of linear differential-algebraic systems with delays (DAD), i.e. solutions that vanish after some finite time. In particular, we prove existence of two kinds of small solutions of DAD systems. The main result are the rank type conditions for observability of three kinds of small solutions of linear differential-algebraic systems with delay.
Źródło:
Control and Cybernetics; 2006, 35, 4; 997-1013
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Robust H∞ control for uncertain neutral time-delay systems with discrete and distributed delays
Autorzy:
Sun, M.
Fu, D.
Powiązania:
https://bibliotekanauki.pl/articles/205639.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
time-delay
linear matrix inequalities
uncertain neutral systems
H[infinity] control
Opis:
In this paper, the robust H∞ control problem is considered for uncertain neutral systems with discrete and distributed tirne delays. Some sumcient conditions on H∞, robust performance analysis are obtained in terms of linear matrix inequalities (LMIs) by using a descriptor model transformation of the system and by applying Park's inequality for bounding cross terms. Based on these conditions the state-feedback H∞ controller is designed. Numerical examples are included to illustrate the proposed method.
Źródło:
Control and Cybernetics; 2011, 40, 1; 25-38
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Controllability, reachability and minimum energy control of fractional discrete-time linear systems with multiple delays in state
Autorzy:
Busłowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/200470.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
linear systems
fractional
discrete-time
time-delay
controllability
reachability
minimum energy control
Opis:
In the paper the problems of controllability, reachability and minimum energy control of a fractional discrete-time linear system with delays in state are addressed. A general form of solution of the state equation of the system is given and necessary and sufficient conditions for controllability, reachability and minimum energy control are established. The problems are considered for systems with unbounded and bounded inputs. The considerations are illustrated by numerical examples. Influence of a value of the fractional order on an optimal value of the performance index of the minimum energy control is examined on an example.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2014, 62, 2; 233-239
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An observer-based controller design for nonlinear discrete-time switched systems with time-delay and affine parametric uncertainty
Autorzy:
Baleghi, N. A.
Shafiei, M. H.
Powiązania:
https://bibliotekanauki.pl/articles/230013.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
discrete-time switched systems
time-delay
affine parametric uncertainty
observer-based controller
Opis:
This paper proposes a design procedure for observer-based controllers of discrete-time switched systems, in the presence of state’s time-delay, nonlinear terms, arbitrary switching signals, and affine parametric uncertainties. The proposed switched observer and the state-feedback controller are designed simultaneously using a set of linear matrix inequalities (LMIs).The stability analysis is performed based on an appropriate Lyapunov–Krasovskii functional with one switched expression, and in the meantime, the sufficient conditions for observer-based stabilization are developed. These conditions are formulated in the form of a feasibility test of a proposed bilinear matrix inequality (BMI) which is a non-convex problem. To make the problem easy to solve, the BMI is transformed into a set of LMIs using the singular value decomposition of output matrices. An important advantage of the proposed method is that the established sufficient conditions depend only on the upper bound of uncertain parameters. Furthermore, in the proposed method, an admissible upper bound for unknown nonlinear terms of the switched system may be calculated using a simple search algorithm. Finally, the efficiency of the proposed controller and the validity of the theoretical results are illustrated through a simulation example.
Źródło:
Archives of Control Sciences; 2020, 30, 3; 501-521
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reachability and minimum energy control of positive discrete-time linear systems with multiple delays in state and control
Osiągalność i sterowanie z minimalną energią liniowych dodatnich układów dyskretnych z wieloma opóźnieniami stanu i sterowania
Autorzy:
Kaczorek, T.
Busłowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/153534.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
liniowy układ dodatni
dyskretny
opóźnienie
osiągalność
sterowanie z minimalną energią
linear positive systems
discrete-time systems
time-delay
reachability
minimum energy control
Opis:
A notion of positive linear discrete-time systems with multiple delays in state and control is introduced. The necessary and sufficient conditions for positivity, reachability and minimum energy control are given. Considerations are illustrated by example.
W pracy podano warunki, przy spełnieniu których liniowy dyskretny układ z wieloma opóźnieniami zmiennych stanu i sterowania jest układem dodatnim. Podano też warunki konieczne i wystarczające osiągalności oraz sterowania z minimalną energią. Rozważania zilustrowano przykładem.
Źródło:
Pomiary Automatyka Kontrola; 2007, R. 53, nr 10, 10; 40-44
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Finite-time stability and stabilization of singular state-delay systems using improved estimation of a lower bound on a Lyapunov-like functional
Autorzy:
Stojanovic, S. B.
Debeljkovic, D. Lj.
Antic, D. S.
Powiązania:
https://bibliotekanauki.pl/articles/200145.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
singular systems
time-delay
LMIs
finite-time stability
stabilizing controllers
cone complementarity
linearization
cone complementarity linearization algorithm
systemy pojedyńcze
czas opóźnienia
stabilność w czasie skończonym
kontrolery stabilizujące
komplementarność
linearyzacja
algorytm cone complementarity linearization
Opis:
In this paper, the problems of finite-time stability and stabilization for a class of singular time-delay systems are studied. Using the Lyapunov-like functional (LLF) with (exponential or power) weighting function and a new estimation method for the lower bound on LLF, some sufficient stability conditions are introduced. It is shown that the weighting function significantly reduces the conservatism of the stability criteria in comparison to estimation of the lower bound on LLF without this function. To solve the finite-time stabilization problem, a stabilizing linear state controller is designed by exploiting the cone complementarity linearization algorithm. Two numerical examples are given to illustrate the effectiveness of the proposed method.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 2; 479-487
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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