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Wyszukujesz frazę "active fault-tolerant control" wg kryterium: Temat

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Spacecraft attitude fault tolerant control based on multi-objective optimization
    Autorzy:
    Moradi, Rouzbeh
    Alikhani, Alireza
    Fathi Jegarkandi, Mohsen
    Powiązania:
    https://bibliotekanauki.pl/articles/1839618.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    active fault-tolerant control
    spacecraft attitude control
    finite time convergence
    Pareto-optimal set
    Opis:
    An active fault tolerant controller is designed for the attitude control of a faulty spacecraft. Feedback linearization and Lyapunov’s direct method are used to solve angular velocity equations and to ensure convergence of the system outputs to reference inputs, respectively. In order to ensure finite time convergence, final time constraints are proposed. Three con- structive objective functions are considered as performance measures and optimized using multi-objective optimization. The results show that the outputs converge to the reference attitudes, even for severe actuator faults/failures.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2020, 58, 4; 983-996
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A hybrid active fault-tolerant control scheme for wind energy conversion system based on permanent magnet synchronous generator
    Autorzy:
    Tahri, A.
    Hassaine, S.
    Moreau, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/140788.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    wind energy conversion system
    active fault-tolerant control
    permanent magnet synchronous generator
    sensor fault diagnosis
    sliding mode observer
    Opis:
    Wind energy has achieved prominence in renewable energy production. There- fore, it is necessary to develop a diagnosis system and fault-tolerant control to protect the system and to prevent unscheduled shutdowns. The presented study aims to provide an experimental analysis of a speed sensor fault by hybrid active fault-tolerant control (AFTC) for a wind energy conversion system (WECS) based on a permanent magnet synchronous generator (PMSG). The hybrid AFTC switches between a traditional controller based on proportional integral (PI) controllers under normal conditions and a robust backstepping controller system without a speed sensor to avoid any deterioration caused by the sensor fault. A sliding mode observer is used to estimate the PMSG rotor position. The proposed controller architecture can be designed for performance and robustness separately. Finally, the proposed methodwas successfully tested in an experimental set up using a dSPACE 1104 platform. In this experimental system, the wind turbine with a generator connection via a mechanical gear is emulated by a PMSM engine with controled speed through a voltage inverter. The obtained experimental results show clearly that the proposed method is able to guarantee service production continuity for the WECS in adequate transition.
    Źródło:
    Archives of Electrical Engineering; 2018, 67, 3; 485--497
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A model-based approach to fault-tolerant control
    Autorzy:
    Niemann, H. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/331380.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    sterowanie tolerujące uszkodzenia
    architektura sterownika
    diagnostyka uszkodzeń
    fault-tolerant control
    controller architecture
    fault diagnosis
    active fault diagnosis
    controller switching
    Opis:
    A model-based controller architecture for Fault-Tolerant Control (FTC) is presented in this paper. The controller architecture is based on a general controller parameterization. The FTC architecture consists of two main parts, a Fault Detection and Isolation (FDI) part and a controller reconfiguration part. The theoretical basis for the architecture is given followed by an investigation of the single parts in the architecture. It is shown that the general controller parameterization is central in connection with both fault diagnosis as well as controller reconfiguration. Especially in relation to the controller reconfiguration part, the application of controller parameterization results in a systematic technique for switching between different controllers. This also allows controller switching using different sets of actuators and sensors.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2012, 22, 1; 67-86
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Universal System for Detection and Compensation of Current Sensor Faults in Three-Phase Power Electronic Systems
    Autorzy:
    Dybkowski, Mateusz
    Jankowska, Kamila Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/2175934.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    FTC
    fault-tolerant control system
    active rectifier
    current sensor
    PMSM
    permanent magnet synchronous motor
    IM
    induction motor
    diagnostics
    Opis:
    The article discusses the universal current sensor fault detection and compensation mechanism, which can be applied in three-phase power electronics (PE) symmetrical system. The mechanism is based on the assumption that a symmetrical system can be described using different components in the stationary reference frame. The solution given in article as a Cri-base detector was tested in electrical drives with induction motors (IMs) and permanent magnet synchronous motors (PMSMs). This study also proves that the same algorithm can work stable in active rectifier systems. Such an application of this detector has not been previously reported in the literature. The article describes the detection of various types of faults in different phases. The fault-tolerant voltage-oriented control (FTVOC) of an active rectifier is compared with previously described solutions for IMs and PMSMs. By analysing in various types of systems, the work proves the universality of the detector based on Cri markers.
    Źródło:
    Power Electronics and Drives; 2022, 7, 42; 267--278
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Self-adaptive fault-tolerant control strategy of shunt active power filter based on multicellular converter
    Autorzy:
    Bouhafs, Ali
    Rouabah, Boubakeur
    Kafi, Mohamed Redouane
    Louazene, Lakhdar
    Powiązania:
    https://bibliotekanauki.pl/articles/27313833.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    self-adaptive fault-tolerant control
    multicellular power converter
    shunt active power filter
    sliding mode control
    power quality improvement
    sterowanie odporne na uszkodzenia
    wielokomórkowy konwerter mocy
    aktywny filtr mocy
    sterowanie trybem ślizgowym
    poprawa jakości zasilania
    Opis:
    The use of multicellular topology in power quality enhancement can reduce the power loss and also dv/dt of power switches, minimize the electromagnetic interference. However, the failure of flying capacitors can reduce the active filtering efficiency and affect the power quality by injecting currents with wave-form distortion (harmonics, notching, noises etc.) in power distribution grid. Therefore, this study presents a faulttolerant control strategy (FTC) allowing to keep the normal operation conditions of a multicellular converter even under failure mode. The obtained results show that the proposed FTC strategy enhances the power quality of power distribution grid when a fault in flying capacitors occurs.
    Źródło:
    Diagnostyka; 2023, 24, 4; art. no. 2023411
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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