Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "repetitive control" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-13 z 13
    Tytuł:
    Comparison of the Stability Boundary and the Frequency Response Stability Condition in Learning and Repetitive Control
    Autorzy:
    Songschon, S.
    Longman, R. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/908202.pdf
    Data publikacji:
    2003
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    automatyka
    robotyka
    iterative learning control
    repetitive control
    stability
    monotonic convergence
    Opis:
    In iterative learning control (ILC) and in repetitive control (RC) one is interested in convergence to zero tracking error as the repetitions of the command or the periods in the command progress. A condition based on steady state frequency response modeling is often used, but it does not represent the true stability boundary for convergence. In this paper we show how this useful condition differs from the true stability boundary in ILC and RC, and show that in applications of RC the distinction between these conditions is of no practical significance. In ILC satisfying this frequency condition is important for good learning transients, even though the true stability boundary is very different.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2003, 13, 2; 169-177
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    System Identification from Multiple-Trial Data Corrupted by Non-Repeating Periodic Disturbances
    Autorzy:
    Phan, M. Q.
    Longman, R. W.
    Lee, S. C.
    Lee, J. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/908209.pdf
    Data publikacji:
    2003
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    automatyka
    robotyka
    system identification
    disturbance identification
    iterative learning control
    repetitive control
    interaction matrix
    Opis:
    Iterative learning and repetitive control aim to eliminate the effect of unwanted disturbances over repeated trials or cycles. The disturbance-free system model, if known, can be used in a model-based iterative learning or repetitive control system to eliminate the unwanted disturbances. In the case of periodic disturbances, although the unknown disturbance frequencies may be the same from trial to trial, the disturbance amplitudes, phases, and biases do not necessarily repeat. Furthermore, the system may not return to the same initial state at the end of each trial before starting the next trial. In spite of these constraints, this paper shows how to identify the system disturbance-free dynamics from disturbance-corrupted input-output data collected over multiple trials without having to measure the disturbances directly. The system disturbance-free model can then be used to identify the disturbances as well, for use in learning or repetitive control. This paper represents the first extension of the interaction matrix approach to the multiple-trial environment of iterative learning control.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2003, 13, 2; 185-192
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Variable-structure repetitive control for discrete-time linear systems with multiple-period exogenous signals
    Autorzy:
    Kurniawan, Edi
    Harno, Hendra G.
    Wijonarko, Sensus
    Widiyatmoko, Bambang
    Bayuwati, Dwi
    Purwowibowo, Purwowibowo
    Maftukhah, Tatik
    Powiązania:
    https://bibliotekanauki.pl/articles/330684.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    repetitive control
    variable structure control
    multiple period signal
    fast transient response
    sterowanie powtarzalne
    sterowanie o zmiennej strukturze
    odpowiedź przejściowa
    Opis:
    A new method to construct a discrete-time variable-structure repetitive controller for a class of linear systems perturbed by multiple-period exogenous signals is presented. The proposed control scheme combines the features of the discrete-time multiple-period repetitive control (MP-RC) and variable-structure control (VSC) techniques. The MP-RC part is assigned to simultaneously track and reject periodic signals consisting of multiple uncorrelated fundamental frequencies. The VSC part is then integrated to provide a fast transient response and robustness against plant parameter variations. Stability and robustness analyses are also elaborated to ensure that the resulting closed-loop system satisfies the desired control objectives. Moreover, it is shown through an example that the repetitive control system constructed using the proposed control method can effectively track a sinusoidal reference signal despite the presence of a multiple-period disturbance.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2020, 30, 2; 207-218
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Performance Study on Synchronous and Asynchronous Update Rules for A Plug-In Direct Particle Swarm Repetitive Controller
    Autorzy:
    Ufnalski, B.
    Grzesiak, L. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/141272.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    repetitive process control
    particle swarm optimization (PSO)
    synchronous and asynchronous update rules
    dynamic optimization problem
    repetitive disturbance rejection
    optimal control
    Opis:
    In this paper two different update schemes for the recently developed plug-in direct particle swarm repetitive controller (PDPSRC) are investigated and compared. The proposed approach employs the particle swarm optimizer (PSO) to solve in on-line mode a dynamic optimization problem (DOP) related to the control task in the constant-amplitude constant-frequency voltage-source inverter (CACF VSI) with an LC output filter. The effectiveness of synchronous and asynchronous update rules, both commonly used in static optimization problems (SOPs), is assessed and compared in the case of PDPSRC. The performance of the controller, when synthesized using each of the update schemes, is studied numerically.
    Źródło:
    Archives of Electrical Engineering; 2014, 63, 4; 635-646
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Repetitive neurocontroller with disturbance feedforward path active in the pass-to-pass direction for a VSI inverter with an output LC filter
    Autorzy:
    Ufnalski, B.
    Grzesiak, L. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/200017.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    repetitive control
    feedforward neural network
    dynamic optimization problem
    repetitive disturbance rejection
    voltage source inverter
    disturbance dual feedforward path
    sterowanie powtarzalne
    sieci neuronowe
    problem optymalizacji dynamicznej
    przetwornica napięcia
    odrzucanie zakłóceń
    Opis:
    An enhancement to the previously developed repetitive neurocontroller (RNC) is discussed and investigated in the paper. Originally, the time-base generator (TBG) has been used to produce the only input signal for the neural approximator. The resulting search space makes the dynamic optimization problem (DOP) of shaping the control signal solvable with the help of a function approximator such as the feed-forward neural network (FFNN). The plant under consideration, i.e. a constant-amplitude constant-frequency voltage-source inverter (CACF VSI) with an output LC filter, is assumed to be equipped with the disturbance load current sensor to enable implementation of the disturbance feed-forward (pDFF) path as a part of the non-repetitive subsystem acting in the along the pass p-direction. An investigation has been undertaken to explore potential benefits of using this signal also as an additional input for the RNC to augment the approximation space and potentially enhance the convergence rate of the real-time search process. It is numerically demonstrated in the paper that the disturbance feed-forward path active in the pass-to-pass k-direction (kDFF) improves the dynamics of the repetitive part as well indeed.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2016, 64, 1; 115-125
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    High quality repetitive control system for a grid-tied converter under distorted grid voltage conditions – design and implementation
    Autorzy:
    Ufnalski, Bartlomiej
    Straś, Andrzej
    Grzesiak, Lech M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2173606.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    AC/DC power converter
    current control
    particle swarm optimization
    power quality
    repetitive control
    RC
    przetwornica mocy AC/DC
    kontrola prądu
    optymalizacja roju cząstek
    jakość prądu
    kontrola powtarzalna
    Opis:
    The paper features a grid-tied converter with a repetitive current controller. Our goal here is to demonstrate the complete design workflow for a repetitive controller, including phase lead, filtering and conditional learning. All key parameters, i.e., controller gain, filter and fractional phase lead, are designed in a single optimization procedure, which is a novel approach. The description of the design and optimization process, as well as experimental verification of the entire control system, are the most important contributions of the paper. Additionally, one more novelty in the context of power converters is verified in the physical system – a conditional learning algorithm to improve transient states to abrupt reference and disturbance changes. The resulting control system is tested experimentally in a 10 kW converter.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; art. no. e136739
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    High quality repetitive control system for a grid-tied converter under distorted grid voltage conditions – design and implementation
    Autorzy:
    Ufnalski, Bartlomiej
    Straś, Andrzej
    Grzesiak, Lech M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2090719.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    AC/DC power converter
    current control
    particle swarm optimization
    power quality
    repetitive control
    RC
    przetwornica mocy AC/DC
    kontrola prądu
    optymalizacja roju cząstek
    jakość prądu
    kontrola powtarzalna
    Opis:
    The paper features a grid-tied converter with a repetitive current controller. Our goal here is to demonstrate the complete design workflow for a repetitive controller, including phase lead, filtering and conditional learning. All key parameters, i.e., controller gain, filter and fractional phase lead, are designed in a single optimization procedure, which is a novel approach. The description of the design and optimization process, as well as experimental verification of the entire control system, are the most important contributions of the paper. Additionally, one more novelty in the context of power converters is verified in the physical system – a conditional learning algorithm to improve transient states to abrupt reference and disturbance changes. The resulting control system is tested experimentally in a 10 kW converter.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; e136739, 1--11
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A 2D system approach to the design of a robust modified repetitive-control system with a dynamic output-feedback controller
    Autorzy:
    Zhou, L.
    She, J.
    Zhou, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/330403.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    repetitive control
    dynamic output feedback
    two dimensional system
    singular value decomposition
    linear matrix inequality
    sterowanie powtarzalne
    sprzężenie zwrotne dynamiczne
    system dwuwymiarowy
    liniowa nierówność macierzowa
    Opis:
    This paper is concerned with the problem of designing a robust modified repetitive-control system with a dynamic output feedback controller for a class of strictly proper plants. Employing the continuous lifting technique, a continuous-discrete two-dimensional (2D) model is built that accurately describes the features of repetitive control. The 2D control input contains the direct sum of the effects of control and learning, which allows us to adjust control and learning preferentially. The singular-value decomposition of the output matrix and Lyapunov stability theory are used to derive an asymptotic stability condition based on a Linear Matrix Inequality (LMI). Two tuning parameters in the LMI manipulate the preferential adjustment of control and learning. A numerical example illustrates the tuning procedure and demonstrates the effectiveness of the method.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2014, 24, 2; 325-334
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Robust aperiodic-disturbance rejection in an uncertain modified repetitive-control system
    Autorzy:
    Zhou, L.
    She, J.
    Li, C.
    Pan, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/330015.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    repetitive control
    equivalent input disturbance
    two dimensional system
    singular value decomposition
    linear matrix inequality
    sterowanie powtarzalne
    układ dwuwymiarowy
    rozkład na wartości szczególne
    liniowa nierówność macierzowa
    Opis:
    This paper concerns the problem of designing an EID-based robust output-feedback modified repetitive-control system (ROFMRCS) that provides satisfactory aperiodic-disturbance rejection performance for a class of plants with time-varying structured uncertainties. An equivalent-input-disturbance (EID) estimator is added to the ROFMRCS that estimates the influences of all types of disturbances and compensates them. A continuous-discrete two-dimensional model is built to describe the EID-based ROFMRCS that accurately presents the features of repetitive control, thereby enabling the control and learning actions to be preferentially adjusted. A robust stability condition for the closed-loop system is given in terms of a linear matrix inequality. It yields the parameters of the repetitive controller, the output-feedback controller, and the EID-estimator. Finally, a numerical example demonstrates the validity of the method.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2016, 26, 2; 285-295
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Plug-in direct particle swarm repetitive controller with a reduced dimensionality of a fitness landscape – a multi-swarm approach
    Autorzy:
    Ufnalski, B.
    Grzesiak, L. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/202046.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    repetitive process control
    dynamic optimization problem
    particle swarm optimizer
    repetitive disturbance rejection
    noninteracting subswarms
    dimension-reduced fitness functional
    powtarzalne sterowanie procesem
    problem optymalizacji dynamicznej
    optymalizator rojem cząstek
    odrzucanie zakłóceń
    sprawność funkcjonalna
    Opis:
    The paper describes a modification to the recently developed plug-in direct particle swarm repetitive controller (PDPSRC) for the sine-wave constant-amplitude constant-frequency (CACF) voltage-source inverter (VSI). The original PDPSRC algorithm assumes that the particle swarm optimizer (PSO) takes into account a performance index defined over the whole reference signal period. Each particle stores all the samples of the control signal, e.g. α = 200 samples for a controller working at 10 kHz and the reference frequency equal to 50 Hz. Therefore, the fitness landscape (i.e. the performance index) is -dimensional ( D), which makes optimization challenging. That solution can be categorized as the single-swarm one. It has been previously shown that the swarm controller does not suffer from long-term stability issues encountered in the classic iterative learning controllers (ILC). However, the convergence of the swarm has to be kept at a relatively low rate to enable successful exploitation in the D search space, which in turn results in slow responsiveness of the PDPSRC. Here a multi-swarm approach is proposed in which we divide a dynamic optimization problem (DOP) among less dimensional swarms. The reference signal period is segmented into shorter intervals and the control signal is optimized in each interval independently by separate swarms. The effectiveness of the proposed approach is illustrated with the help of numerical experiments on the CACF VSI with an output LC filter operating under nonlinear loads.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 4; 857-866
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Repetitive thought as a moderator of the impact of control deprivation on emotional and cognitive functioning
    Autorzy:
    Jarmakowski-Kostrzanowski, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/430522.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    control deprivation
    repetitive thought
    rumination
    learned helplessness
    Opis:
    The present research explores the role of repetitive thought (RT) in developing control deprivation deficits. The two main RT theories lead to diverging predictions. The response style theory suggests that RT in reaction to distress leads to negative effects in terms of emotional and cognitive functioning. However, the theory of Marin and Tesser and its elaboration by Watkins, suggest that the effects of RT depend on its form and that individuals who are not depression-prone usually adopt the constructive form of RT that leads to positive effects. To test which of these predictions is true for control deprivation situation, two experimental studies were conducted. Participants after control deprivation were induced RT or distraction, followed by the measurement of their emotional and cognitive functioning. The results suggest that repetitive thought reduces both emotional and cognitive helplessness deficits and has no effect in no control deprivation condition. This supports the theory of Martin and Tesser and its elaboration by Watkins.
    Źródło:
    Polish Psychological Bulletin; 2013, 44, 4; 409-420
    0079-2993
    Pojawia się w:
    Polish Psychological Bulletin
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nadążne sterowanie produkcją jako metoda harmonogramowania produkcji powtarzalnej
    The Follow-up Production Control as a Method of Repetetive Production Control
    Autorzy:
    Krystek, J.
    Zaborowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/156847.pdf
    Data publikacji:
    2007
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    sterowanie produkcją
    harmonogramowanie
    produkcja powtarzalna
    production control
    scheduling
    repetitive production
    Opis:
    W artykule przedstawiono metodę nadążnego sterowania produkcją, którą można wykorzystać do harmonogramowania procesów produkcji powtarzalnej. Omówiono krótko algorytm nadążnego harmonogramowanie produkcji, który jest przeznaczony do bieżącej generacji planów wykonawczych danej komórki systemu produkcyjnego, w taki sposób, by nadążały one za operacyjnymi planami produkcji pochodzącymi z jednostki koordynacyjnej systemu. Celem badań było sprawdzenie wpływu reguł priorytetu, stosowanych do wyboru wariantów produkcyjnych, na czas trwania stanów nieustalonych i na właściwości cyklogramów produkcji rytmicznej generowanych przez algorytm w stanach ustalonych.
    In the paper the follow-up production control is presented as a method of repetitive production scheduling. A short description of the follow-up scheduling algorithm is given. The follow-up scheduling algorithm is designed to current generation of work cell executive plans which follow operational production plans coming from coordination unit. The simulation research goal was to verify if dispatch rules, that are applied to production variants selection, influence on duration of transient state and on features of cyclic schedules generated by the algorithm in steady-state.
    Źródło:
    Pomiary Automatyka Kontrola; 2007, R. 53, nr 8, 8; 33-37
    0032-4140
    Pojawia się w:
    Pomiary Automatyka Kontrola
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Simple cyclic movements as a distinct autism feature - computational approach
    Autorzy:
    Dobosz, K.
    Mikołajewski, D.
    Wójcik, G. M.
    Duch, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/305787.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    computational neuroscience
    neural networks
    attractor networks
    motor control
    repetitive movements
    ion channels
    Autism Spectrum Disorders
    ASD
    emergent simulator
    GENESIS simulator
    Opis:
    A diversity of symptoms in autism dictates a broad definition of Autism Spectrum of Disorders (ASD). Each year, the percentage of children diagnosed with ASD is growing. One common diagnostic feature in individuals with ASD is the tendency to exhibit atypical simple cyclic movements.The motor brain activity seems to generate a periodic attractor state that is hard to escape. Despite numerous studies, scientists and clinicians do not know exactly if ASD is a result of a simple yet general mechanism or of a complex set of mechanisms (either on the neural, molecular and system levels). Simulations using the biologically - relevant neural network model presented here may help to reveal the simplest mechanisms that may be responsible for specific behavior. Abnormal neural fatigue mechanisms may be responsible for motor symptoms as well as many (or perhaps all) of the other symptoms observed in ASD.
    Źródło:
    Computer Science; 2013, 14 (3); 475-489
    1508-2806
    2300-7036
    Pojawia się w:
    Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies