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Wyszukujesz frazę "active disturbance rejection" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Flexible function block for industrial applications of active disturbance rejection controller
    Autorzy:
    Nowak, P.
    Stebel, K.
    Klopot, T.
    Czeczot, J.
    Fratczak, M.
    Laszczyk, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/229587.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    industrial control systems
    active disturbance rejection control
    ADRC
    practical
    tuning
    practical implementation
    programmable logic controller
    PLC
    Opis:
    In this paper, the PLC-based (Programmable Logic Controller) industrial implementation in the form of the general-purpose function block for ADRC (Active Disturbance Rejection Controller) is presented. The details of practical aspects are discussed because their reliable implementation is not trivial for higher order ADRC. Additional important novelties discussed in the paper are the impact of the derivative backoff and the method that significantly simplifies tuning of higher order ADRC by avoiding the usual trial and error procedure. The results of the practical validation of the suggested concepts complete the paper and show the potential industrial applicability of ADRC.
    Źródło:
    Archives of Control Sciences; 2018, 28, 3; 379-400
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Novel solutions on model-based and model-free robotic-assisted ankle rehabilitation
    Autorzy:
    Arceo, Juan Carlos
    Alvarez, Jorge
    Armenta, Carlos
    Lauber, Jimmy
    Cremoux, Sylvian
    Simoneau-Buessinger, Emilie
    Bernal, Miguel
    Powiązania:
    https://bibliotekanauki.pl/articles/1409032.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    active disturbance rejection
    computed torque control
    differential algebraic equations
    parallel rehabilitation robot
    real-time implementation
    system identification
    Opis:
    In this report, ankle rehabilitation routines currently approved by physicians are implemented via novel control algorithms on a recently appeared robotic device known as the motoBOTTE. The physician specifications for gait cycles are translated into robotic trajectories whose tracking is performed twofold depending on the availability of a model: (1) if obtained via the Euler-Lagrange approach along with identification of unknown plant parameters, a new computed-torque control law is proposed; it takes into account the parallel-robot characteristics; (2) if not available, a variation of the active disturbance rejection control technique whose parameters need to be tuned, is employed. A detailed discussion on the advantages and disadvantages of the model-based and model-free results, from the continuous-time simulation to the discrete-time implementation, is included.
    Źródło:
    Archives of Control Sciences; 2021, 31, 1; 5-27
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tracking control for a cascade perturbed control system using the active disturbance rejection paradigm
    Autorzy:
    Patelski, Radosław
    Pazderski, Dariusz
    Powiązania:
    https://bibliotekanauki.pl/articles/229198.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    active disturbance rejection
    cascade control systems
    stability of perturbed systems
    high-precision tracking control
    control of astronomical mounts
    Opis:
    In this paper the stability of a closed-loop cascade control system in the trajectory tracking task is addressed. The considered plant consists of underlying second-order fully actuated perturbed dynamics and the first order system which describes dynamics of the input. The main theoretical result establishes the conditions for Lyapunov stability formulated for the perturbed cascade control structure taking advantage of the active rejection disturbance approach. In particular, limitations imposed on a feasible set of an observer bandwidth are discussed. In order to illustrate characteristics of the closed-loop control system simulation results are presented. Furthermore, the particular implementation of the cascade control algorithm is verified experimentally using a two-axis telescope mount. The obtained results confirm that the considered control strategy can be efficiently applied for a class of mechanical systems when a high position tracking precision is required.
    Źródło:
    Archives of Control Sciences; 2019, 29, 2; 378-408
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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