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Wyszukujesz frazę "H∞ control" wg kryterium: Temat

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Loop-shaping h∞ control of an aeropendulum model
    Autorzy:
    Breganon, Ricardo
    Alves, Uiliam Nelson L. T.
    De Almeida, João Paulo L.S.
    Ribeiro, Fernando S. F.
    Mendonça, Marcio
    Palácios, Rodrigo H. C.
    Montezuma, Marcio A. F.
    Powiązania:
    https://bibliotekanauki.pl/articles/2106458.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    modelowanie dynamiczne
    wahadło aerodynamiczne
    sterowanie
    dynamic system modeling
    aeropendulum
    H∞ control
    Opis:
    This work presents a mathematical model of an aeropendulum system with two sets of motors with propellers and the design and simulation of a loop-shaping h∞control for this system. In this plant, the objective is to control the angular position of the pendulum rod through the torque generated by the thrust of the motorized propellers at the end of the rod’s axis. The control design is obtained by first using feedback linearization and then designing the h∞ controller using the resulting linear system. For the control strategy validation, simulations were conducted in the Matlab/Simulink® environment, and the weighting functions for the h∞ controller were adjusted to obtain the desired performance and stability of the closed-loop system. The simulation results show the efficiency of the applied methodology.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2021, 26, 4; 1--16
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Regulation control of an underactuated mechanical system with discontinuous friction and backlash
    Autorzy:
    Rascón, R.
    Rosas, D.
    Hernandez-Balbuena, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/330564.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    underactuated mechanical system
    sliding mode control
    H infinity control
    discontinuous observer
    sterowany układ mechaniczny
    sterowanie ślizgowe
    obserwator nieciągły
    Opis:
    In this work, the problem of position regulation control is addressed for a 2DOF underactuated mechanical system with friction and backlash. For this purpose, a method combining sliding mode and H∞ control is developed. We prove that the application of the method to the nonlinear model considered results in an asymptotically stable equilibria set. Moreover, it is possible to achieve a sufficiently small and bounded steady-state position error even in the presence of disturbances by employing the proposed technique. That is, the developed controller is able to account not only for unmatched external perturbations and model discrepancies of the test rig considered, but also for matched bounded perturbations. The control methodology is presented from both the theoretical and experimental angles to demonstrate the good performance of the proposed controller.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2017, 27, 4; 785-797
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Automatic Control of Mechatronic Systems
    Autorzy:
    Schlacher, K.
    Kugi, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/908321.pdf
    Data publikacji:
    2001
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    mechatronika
    geometria różniczkowa
    sterowanie
    mechatronic systems
    differential geometry
    nonlinear H_{infty}-control
    passivity
    input-output linearization
    Opis:
    This contribution deals with different concepts of nonlinear control for mechatronic systems. Since most physical systems are nonlinear in nature, it is quite obvious that an improvement in the performance of the closed loop can often be achieved only by means of control techniques that take the essential nonlinearities into consideration. Nevertheless, it can be observed that industry often hesitates to implement these nonlinear controllers, despite all advantages existing from the theoretical point of view. On the basis of three different applications, a PWM-controlled dc-to-dc converter, namely the Cuk-converter, the problem of hydraulic gap control in steel rolling, and the design of smart structures with piezolelectric sensor and actuator layers, we will demonstrate how one can overcome these problems by exploiting the physical structure of the mathematical models of the considered plants.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2001, 11, 1; 131-164
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Decentralized design of interconnected H infinity feedback control systems with quantized signals
    Autorzy:
    Zhai, G.
    Chen, N.
    Gui, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/331266.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    interconnected systems
    decentralized H infinity control
    dynamic output feedback
    quantizer
    quantization
    matrix inequality
    LMI
    sprzężenie zwrotne dynamiczne
    kwantyzer
    kwantowanie
    nierówność macierzowa
    metoda LMI
    Opis:
    In this paper, we consider the design of interconnected H infinity feedback control systems with quantized signals. We assume that a decentralized dynamic output feedback has been designed for an interconnected continuous-time LTI system so that the closed-loop system is stable and a desired H infinity disturbance attenuation level is achieved, and that the subsystem measurement outputs are quantized before they are passed to the local controllers. We propose a local-output-dependent strategy for updating the parameters of the quantizers, so that the overall closed-loop system is asymptotically stable and achieves the same H infinity disturbance attenuation level. Both the pre-designed controllers and the parameters of the quantizers are constructed in a decentralized manner, depending on local measurement outputs.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2013, 23, 2; 317-325
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Delay-dependent generalized H2 control for discrete T-S fuzzy large-scale stochastic systems with mixed delays
    Autorzy:
    Li, J.
    Xia, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/930162.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    system stochastyczny
    opóźnienie zależne
    liniowa nierówność macierzowa
    fuzzy large scale stochastic system
    delay-dependent
    generalized H2 control
    infinite distributed delays
    linear matrix inequality
    Opis:
    This paper is concerned with the problem of stochastic stability and generalized H2 control for discrete-time fuzzy largescale stochastic systems with time-varying and infinite-distributed delays. Large-scale interconnected systems consist of a number of discrete-time interconnected Takagi-Sugeno (T-S) subsystems. First, a novel Delay-Dependent Piecewise Lyapunov-Krasovskii Functional (DDPLKF0 is proposed, in which both the upper and the lower bound of delays are considered. Then, two improved delay-dependent stability conditions are established based on this DDPLKF in terms of Linear Matrix Inequalities (LMIs). The merit of the proposed conditions lies in its reduced conservatism, which is achieved by circumventing the utilization of some bounding inequalities for cross products of two vectors and by considering the interactions among the fuzzy subsystems in each subregion. A decentralized generalized H2 state feedback fuzzy controller is designed for each subsystem. It is shown that the mean-square stability for discrete T-S fuzzy large-scale stochastic systems can be established if a DDPLKF can be constructed and a decentralized controller can be obtained by solving a set of LMIs. Finally, an illustrative example is provided to demonstrate the effectiveness of the proposed method.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2011, 21, 4; 585-603
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A spectral method of the analysis of linear control systems
    Autorzy:
    Kurdyukov, Alexander P.
    Boichenko, Victor A.
    Powiązania:
    https://bibliotekanauki.pl/articles/329786.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    anisotropy based control theory
    anisotropic norm
    ℋ2-norm
    H∞ norm
    teoria sterowania
    norma anizotropowa
    norma H-nieskończoność
    Opis:
    A spectral method of the analysis of linear control systems is considered. Within the framework of this approach the σ-entropy of input signals and the σ-entropy norm of systems are introduced. The invariance of the introduced norm makes it possible to get invariant results of σ-entropy analysis.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2019, 29, 4; 667-679
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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