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Wyszukujesz frazę "Pawluszewicz, E." wg kryterium: Autor

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    Wyświetlanie 1-8 z 8
    Tytuł:
    Null-Controllability of Linear Systems on Time Scales
    Autorzy:
    Pawłuszewicz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/970568.pdf
    Data publikacji:
    2012
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    system liniowy
    system sterowania
    skala czasowa
    ograniczenia sterowania
    linear control system
    control constrains
    null-controllability
    time scale
    delta derivative
    Opis:
    The purpose of the paper is to study the problem of controllability of linear control systems with control constrains, defined on a time scale. The obtained results extend the existing ones on any time domain. The set of values of admissible controls is a given closed and convex cone with nonempty interior and vertex at zero or is a subset of containing zero.
    Źródło:
    Acta Mechanica et Automatica; 2012, 6, 4; 50-55
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Linear q-Difference Fractional-Order Control Systems with Finite Memory
    Autorzy:
    Mozyrska, D.
    Pawłuszewicz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/387319.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    obserwowalność
    możliwość kontroli
    pamięć
    układ sterowania
    memory
    control system
    observability
    controllability
    Opis:
    The formula for the solution to linear q-difference fractional-order control systems with finite memory is derived. New definitions of observability and controllability are proposed by using the concept of extended initial conditions. The rank condition for observability is established and the control law is stated.
    Źródło:
    Acta Mechanica et Automatica; 2011, 5, 2; 69-73
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Realizations of linear control systems on time scales
    Autorzy:
    Bartosiewicz, Z.
    Pawłuszewicz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/969999.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    time scale
    linear control system
    realization
    controllability
    observability
    Markov parameters
    Opis:
    Linear constant-coefficients control systems with output on arbitrary time scales are studied. Kalman criteria of controllability and observability are extended to such systems. The main problem is to find criteria for an abstract input/output map to have a realization as a system on the time scale. Two different characterizations of realizability are proved. They extend the classical results obtained for continuous-time and discrete-time systems. Minimal realizations and their uniqueness are also studied.
    Źródło:
    Control and Cybernetics; 2006, 35, 4; 769-786
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Local controllability of nonlinear discrete-time fractional order systems
    Autorzy:
    Mozyrska, D.
    Pawłuszewicz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/201944.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fractional difference operator
    fractional difference initial value problem
    nonlinear fractional order system
    linear approximation
    controllability problem
    Opis:
    The Riemann-Liouville, Caputo and Gr¨unwald-Letnikov fractional order difference operators are discussed and used to state and solve the controllability problem of a nonlinear fractional order discrete-time system. It is shown that independently of the type of fractional order difference, such a system is locally controllable in q steps if its linear approximation is globally controllable in q steps.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 1; 251-256
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Testing of adaptive nonuniform sampling switch algorithm with real-time simulation-in-the-loop
    Autorzy:
    Janczak, J.
    Kondratiuk, M.
    Pawluszewicz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/206431.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    nonuniform sampling
    sampled-data control
    adaptive nonuniform sampling
    Opis:
    The study is motivated by the considerations concerning implementation of nonuniform sampling regarding the reallife objects. It is shown that nonuniform adaptive sampling switch algorithm can ensure a reduction in the number of taken samples and does not exert negative influence on the quality of the system control. Experiment was performed with 24VDC permanent magnet motor with encoder as a plant. Signals from the encoder were used for rotational speed calculations. The results of experiment are included.
    Źródło:
    Control and Cybernetics; 2016, 45, 3; 317-328
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The use of fractional order operators in modelling of RC electrical systems
    Autorzy:
    Ambroziak, L.
    Lewoń, D.
    Pawluszewicz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/970062.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    fractional order operators
    ultracapacitor
    identification
    Opis:
    The present study concerns the analysis of using the integro-differential fractional operators in the process of modelling of electrical systems. As the object of study, the RC circuit with the ultracapacitor was used. A mathematical model of the super capacitor has been introduced, based on the integro-differential fractional order operator. Throughout the modelling it was assumed that the ultracapacitor was ideal. The main goal of the work was to carry out the experimental tests. Static and dynamic characteristics of the RC circuit with the ultracapacitor were determined with a prepared laboratory test rig. The obtained experimental results were compared with simulation tests of the ultracapacitor dynamics. The analysis, modelling and the obtained results allowed for the assessment of applicability of the fractional order operators in modelling of electrical systems. The proposed fractional order model yielded more precise description of dynamic properties of the system.
    Źródło:
    Control and Cybernetics; 2016, 45, 3; 275-288
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Feedback linearization of an active magnetic bearing system operated with a zero-bias flux
    Autorzy:
    Mystkowski, A.
    Kaparin, V.
    Kotta, Ü.
    Pawluszewicz, E.
    Tõnso, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/331088.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    active magnetic bearing
    flux control
    zero bias
    feedback linearization
    flat outputs
    łożysko magnetyczne aktywne
    regulacja strumienia
    linearyzacja sprzężenia zwrotnego
    Opis:
    Input-output linearization by state feedback is applied to a flux-controlled active magnetic bearing (AMB) system, operated in the zero-bias mode. Two models of the AMB system are employed. The first one is described by the third-order dynamics with a flux-dependent voltage switching scheme, whereas the second one is the fourth-order system, called self-sensing AMB, since it does not require the measurement of the rotor position. In the case of that system we had to find the flat outputs to guarantee its stability. The proposed control schemes are verified by means of numerical simulations performed within the Matlab environment.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2017, 27, 3; 539-548
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reducibility condition for nonlinear discrete-time systems: behavioral approach
    Autorzy:
    Bartosiewicz, Z.
    Kotta, U.
    Pawłuszewicz, E.
    Tonso, M.
    Wyrwas, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/206211.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    nonlinear discrete-time systems reducibility
    behavioral approach
    left difference polynomials
    Opis:
    The paper addresses the problem of reducibility of nonlinear discrete-time systems, described by implicit higher order difference equations where no a priori distinction is made between input and output variables. The reducibility definition is based on the concept of autonomous element. We prove necessary reducibility condition, presented in terms of the left submodule, generated by the row matrix, describing the behavior of the linearized system, over the ring of left difference polynomials. Then the reducibility of the system implies the closedness of the submodule, like in the linear time-invariant case. In the special case, when the variables may be specified as inputs and outputs and the system equations are Niven in the explicit form, the results of this paper yield the known results.
    Źródło:
    Control and Cybernetics; 2013, 42, 2; 329-346
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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