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    Wyświetlanie 1-6 z 6
    Tytuł:
    Lyapunov matrices approach to the parametric optimization of a neutral system
    Autorzy:
    Duda, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/229256.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    neutral system
    Lyapunov matrix
    Lyapunov functional
    Opis:
    In the paper a Lyapunov matrices approach to the parametric optimization problem of a neutral system with a P-controller is presented. The value of integral quadratic performance index of quality is equal to the value of Lyapunov functional for the initial function of the neutral system. The Lyapunov functional is determined by means of the Lyapunov matrix.
    Źródło:
    Archives of Control Sciences; 2016, 26, 1; 81-93
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Lyapunov matrices approach to the parametric optimization of a system with two delays and a PD-controller
    Autorzy:
    Duda, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/229274.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    neutral system
    Lyapunov matrix
    Lyapunov functional
    Opis:
    In the paper the parametric optimization problem for a linear system with two delays and a PD-controller is presented. In the parametric optimization problem the quadratic performance index is considered. The value of the quadratic index of quality is calculated due to the Lyapunov functional and is equal to the value of that functional for the initial function of the neutral system with two delays. The Lyapunov functional is determined by means of the Lyapunov matrix.
    Źródło:
    Archives of Control Sciences; 2018, 28, 4; 585-600
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Lyapunov functional for a neutral system with a time-varying delay
    Autorzy:
    Duda, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/200885.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Lyapunov functional
    time-varying delay
    neutral system
    Opis:
    The paper presents a method of determining of the Lyapunov functional for a linear neutral system with an interval time-varying delay. The Lyapunov functional is constructed for the system with a time-varying delay with a given time derivative, which is calculated on the trajectory of the system with a time-varying delay. The presented method gives analytical formulas for the coefficients of the Lyapunov functional.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 4; 911-918
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Parametric optimization of a neutral system with two delays and PD-controller
    Autorzy:
    Duda, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/229662.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    parametric optimization
    Lyapunov functional
    time delay system
    neutral system
    Opis:
    In this paper a parametric optimization problem for a linear neutral system with two delays with an integral quadratic performance index is formulated and solved. The method of computing of a performance index value bases on determining of a Lyapunov functional defined on a state space such that its value for an initial state is equal to a performance index value. In the paper a form of a Lyapunov functional is assumed and a method of computing its coefficients is given. An example illustrating the application of discussed theory is presented. It concerns the system with a PD-controller designed to control a plant with two delays both retarded and neutral type. For such system a value of considered performance index is determined.
    Źródło:
    Archives of Control Sciences; 2013, 23, 2; 131-143
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Parametric optimization of neutral linear system with two delays with P-controller
    Autorzy:
    Duda, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/229977.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    parametric optimization
    Lyapunov functional
    time delay system
    neutral system
    Opis:
    In the paper the problem of parametric optimization of a linear neutral system with two delays accomplished with respect to the integral quadratic performance index is formulated and solved. A method of computing the value of performance index relies on determining such a Lyapunov functional defined on the state space that its value for the initial state is equal to that of performance index. In the paper the form of Lyapunov functional is assumed and a method of computing its coefficients is given. An example illustrating the application of the theory discussed is presented. It concerns a system with the P-controller designed to control a plant with two delays both retarded and neutral type. For such a system the value of the considered performance index is determined.
    Źródło:
    Archives of Control Sciences; 2011, 21, 4; 363-372
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Problems and counter measures of arc suppression coilin 10 kV distribution system
    Autorzy:
    Ni, Hui
    Ding, Pei
    Ma, Yunlong
    Ai, Shaogui
    Ma, Feiyue
    Zhang, Qingping
    Powiązania:
    https://bibliotekanauki.pl/articles/141485.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    arc suppression coil
    capacitive current
    artificial grounding fault test
    neutral non-effective grounding system
    Opis:
    The arc suppression coil determines whether it can effectively extinguish the arc when it is grounded in the neutral non-effective grounding system. An artificial grounding test is an importantway to verify its performance. In this study, 13 substations with the 10 kV system in the Ningxia areawere selected and considered. Based on the artificial single-phase grounding test, the residual current, the compensation current and the off-resonance degree were measured in the arc suppression coil, and the performance of the arc suppression coil in the 10 kV system was verified. The experimental results show that the error of arc suppression coil automatic measurement is large, the off-resonance degree is large, the resistive component in the compensation current is excessive, the harmonic component exists in the compensating current and capacitive current. To solve these problems, this paper puts forward the corresponding countermeasures for reference.
    Źródło:
    Archives of Electrical Engineering; 2019, 68, 1; 135-146
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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