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Wyszukujesz frazę "optimal method" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Infinite time horizon optimal current control of a stepper motor exploiting a finite element model
    Autorzy:
    Bernat, J.
    Stępień, S.
    Stranz, A.
    Szymański, G.
    Sykulski, J. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/200378.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    optimal control theory
    linear quadratic problem
    finite element method
    teoria sterowania optymalnego
    liniowo-kwadratowy problem
    metoda elementów skończonych
    Opis:
    An optimal control theory based method is presented aiming at minimizing the energy delivered from source and the power loss in a stepper motor circuit. A linear quadratic current regulator with an infinite time horizon is employed and its appropriateness for this type of a problem explained. With the purpose of improving the accuracy of the control system, the self and mutual inductances of windings are calculated using a finite element model. The numerically computed results are verified experimentally.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2014, 62, 4; 835-841
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimal input signal design for fractional-order system identification
    Autorzy:
    Jakowluk, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/202155.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fractional calculus
    optimal input design
    Oustaloup recursive method
    parameter identification
    rachunek różniczkowy
    optymalizacja pobudzenia
    metoda rekurencyjna
    Oustaloup
    identyfikacja parametrów
    Opis:
    The optimal design of excitation signal is a procedure of generating an informative input signal to extract the model parameters with maximum pertinence during the identification process. The fractional calculus provides many new possibilities for system modeling based on the definition of a derivative of noninteger-order. A novel optimal input design methodology for fractional-order systems identification is presented in the paper. The Oustaloup recursive approximation (ORA) method is used to obtain the fractional-order differentiation in an integer order state-space representation. Then, the presented methodology is utilized to solve optimal input design problem for fractional-order system identification. The fundamental objective of this approach is to design an input signal that yields maximum information on the value of the fractional-order model parameters to be estimated. The method described in this paper was verified using a numerical example, and the computational results were discussed.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2019, 67, 1; 37-44
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative analysis of multi-criteria decision making methods for the assessment of optimal SVC location
    Autorzy:
    Aydin, Faruk
    Gümüş, Bilal
    Powiązania:
    https://bibliotekanauki.pl/articles/2173650.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Borda count method
    FACTS
    MCDM
    optimal location
    PSAT
    voltage stability
    flexible alternating current transmission system
    power system analysis toolbox
    multi criteria decision making
    metoda liczenia Bordy
    podejmowanie decyzji wielokryterialnej
    lokalizacja optymalna
    stabilność napięcia
    elastyczne systemy przesyłowe prądu przemiennego
    narzędzia do analizy systemu zasilania
    Opis:
    The goal of multi-criteria decision making (MCDM) is to select the most appropriate of the alternatives by evaluating many conflicting criteria together. MCDM methods are widely available in the literature and have been used in various energy problems. The key problems studied in electrical power systems in recent years have included voltage instability and voltage collapse. Different flexible alternating current transmission systems (FACTS) equipment has been used for this purpose for decades, increasing voltage stability while enhancing system efficiency, reliability and quality of supply, and offering environmental benefits. Finding the best locations for these devices in terms of voltage stability in actual electrical networks poses a serious problem. Many criteria should be considered when determining the most suitable location for the controller. The aim of this paper is to provide a comparative analysis of MCDM techniques to be used for optimal location of a static VAR compensator (SVC) device in terms of voltage stability. The ideal location can be determined by means of sorting according to priority criteria. The proposed approach was carried out using the Power System Analysis Toolbox (PSAT) in MATLAB in the IEEE 14-bus test system. Using ten different MCDM methods, the most appropriate locations were compared among themselves and a single ranking list was obtained, integrated with the Borda count method, which is a data fusion technique. The application results showed that the methods used are consistent among themselves. It was revealed that the integrated model was an appropriate method that could be used for optimal location selection, providing reliable and satisfactory results to power system planners.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 2; art. no. e140555
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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