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    Wyświetlanie 1-8 z 8
    Tytuł:
    Predictive current control for permanent magnet synchronous motor based on internal model control observer
    Autorzy:
    Tang, Min'at
    Wang, Chenyu
    Luo, Yinhang
    Powiązania:
    https://bibliotekanauki.pl/articles/2086720.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    internal model control observer
    MPC
    PMSM
    predictive current control
    Opis:
    The model predictive current control (MPCC) of the permanent magnet synchronous motor (PMSM) is highly dependent on motor parameters, and a parameter mismatch will cause the system performance degradation. Therefore, a strategy based on an internal model control (IMC) observer is proposed to correct the mismatch parameters. Firstly, based on the MPCC strategy of the PMSM, according to the dynamic model of the PMSM in a rotating orthogonal coordinate system, -axis and -axis current IMC observers are designed, and the stability derivation is carried out. It is proved that the observer can estimate -axis and -axis disturbance components caused by a parameter mismatch without static error. Then, the estimated disturbance component is compensated for by the reference voltage prediction expression. Finally, the effectiveness of the proposed strategy is verified in two different conditions. The experimental results show that the proposed control strategy can effectively compensate for the parameter mismatch disturbance in MPCC for PMSM, improve the dynamic and static performance of the system, and improve the robustness of the system. voltage prediction expression. Finally, the effectiveness of the proposed strategy is verified in two different conditions. The experimental results show that the proposed control strategy can effectively compensate for the parameter mismatch disturbance in MPCC for PMSM, improve the dynamic and static performance of the system, and improve the robustness of the system.
    Źródło:
    Archives of Electrical Engineering; 2022, 71, 2; 343--362
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Internal Model Control for a Light-Weight Active Noise-Reducing Casing
    Autorzy:
    Mazur, K.
    Pawełczyk, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/177886.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    active noise-vibration control
    active structural acoustic control
    active casing
    Internal Model Control
    Opis:
    The active noise-reducing casing developed and promoted by the authors in recent publications have multiple advantages over other active noise control methods. When compared to classical solutions, it allows for obtaining global reduction of noise generated by a device enclosed in the casing. Moreover, the system does not require loudspeakers, and much smaller actuators attached to the casing walls are used instead. In turn, when compared to passive casings, the walls can be made thinner, lighter and with much better thermal transfer than sound-absorbing materials. For active noise control a feedforward structure is usually used. However, it requires an in-advance reference signal, which can be difficult to be acquired for some applications. Fortunately, usually the dominant noise components are due to rotational operations of the enclosed device parts, and thus they are tonal and multitonal. Therefore, it can be adequately predicted and the Internal Model Control structure can be used to benefit from algorithms well developed for feedforward systems. The authors have already tested that approach for a rigid casing, where interaction of the walls was significantly reduced. In this paper the idea is further explored and applied for a light-weight casing, more frequently met in practice, where each vibrating wall of the casing influences all the other walls. The system is verified in laboratory experiments.
    Źródło:
    Archives of Acoustics; 2016, 41, 2; 315-322
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fuzzy feedback linearizing controller and its equivalence with the fuzzy nonlinear internal model control structure
    Autorzy:
    Boukezzoula, R.
    Galichet, S.
    Foulloy, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/929632.pdf
    Data publikacji:
    2007
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    sterowanie rozmyte
    sterowanie odwrotne
    sterowanie wewnętrzne
    fuzzy control
    inverse control
    feedback linearization
    internal model control
    Opis:
    This paper examines the inverse control problem of nonlinear systems with stable dynamics using a fuzzy modeling approach. Indeed, based on the ability of fuzzy systems to approximate any nonlinear mapping, the nonlinear system is represented by a Takagi-Sugeno (TS) fuzzy system, which is then inverted for designing a fuzzy controller. As an application of the proposed inverse control methodology, two popular control structures, namely, feedback linearization and Nonlinear Internal Model Control (NIMC) are investigated. Moreover, the paper points out that, under some conditions, both of the control structures are equivalent and naturally implement a Smith predictor in the presence of time delays.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2007, 17, 2; 233-248
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    EHMAC - a New Simple Tool for Robust Linear Multivariable Control
    Autorzy:
    Latawiec, K. J.
    Rojek, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/911218.pdf
    Data publikacji:
    2000
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    sterowanie wewnętrzne
    sterowanie predykcyjne
    sterowanie wielowymiarowe
    internal model control
    model-based predictive control
    multivariable control
    orthonormal basis functions
    robust control
    Opis:
    A combination of long range predictive control-originated EHPC and internal model control-structured MAC is shown to produce a new, simple but effective Extended Horizon Model Algorithmic Control (EHMAC). The EHMAC strategy can be used to robustly control open-loop stable non-minimum phase (possibly non-square) MIMO systems under very large model-plant mismatches. Robust EHMAC design is made straightforward by means of a separate selection of a single prediction horizon and an IMC filter parameter, which can be easily auto-tuned.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2000, 10, 3; 575-590
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Neural Network Evaluation of Model-Based Residuals in Fault Detection of Time Delay Systems
    Autorzy:
    Zitek, P.
    Mankova, R.
    Hlava, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/908288.pdf
    Data publikacji:
    1999
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    wykrywanie błędu
    model anizochroniczny
    obserwator stanów
    sterowanie wewnętrzne
    sieć neuronowa
    model-based fault detection
    anisochronic model
    state observer
    internal model control
    artificial neural networks
    Opis:
    Model-based fault detection becomes rather questionable if a supervised plant belongs to the class of systems with distributed parameters and significant delays. Two methods of fault detection have been developed for this class of plants, namely a method of functional (anisochronic) state observer and a modified internal model control scheme adopted for that purpose. Both these model schemes are employed to generate residuals, i.e. differences suitable to watch whether a malfunction of the control operation has occurred. Continuous evaluation of residuals is provided by means of a dynamic application of artificial neural networks (ANNs). This evaluation is carried out on the basis of prediction of time series evolution, where the accordance obtained between the prediction and measured outputs is used as a classification criterion. Implementation of both the methods is demonstrated on a laboratory-scale heat transfer set-up, making use of the Real-Time Matlab software.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 1999, 9, 3; 599-617
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Decoupling control for permanent magnet in-wheel motor using internal model control based on back-propagation neural network inverse system
    Autorzy:
    Li, Y.
    Zhang, B.
    Xu, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/200933.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    electric vehicle
    permanent magnet in-wheel motor
    back-propagation neural network
    inverse system
    internal model control
    pojazd elektryczny
    silnik z napędem na magnesy stałe
    inwersja systemu
    propagacja wsteczna
    model odwrotny
    system odwrotny
    Opis:
    The permanent magnet in-wheel motor (PMIWM) is a nonlinear, multivariable, strongly coupled and highly complex system. The key to the development and application of the PMIWM consists in the improvement of its control accuracy and dynamic performance. In order to effectively decouple the PMIWM, this paper presents a novel internal model control (IMC) approach based on the back-propagation neural network inverse (BPNNI) control method. First, theoretical analysis is conducted to show the existence of the PMIWM inverse system, to be modeled mathematically. The inverse system approximated and identified by the back-propagation neural network (BPNN) constitutes the back-propagation neural network inverse (BPNNI) system. Then, by cascading the BPNNI system on the left side of the original PMIWM system, a new decoupling, pseudo-linear system is established. Moreover, the 2-DOF internal model control (IMC) method is employed to design the extra closed-loop controller that further improves disturbance rejection and robustness of the whole system. Consequently, the proposed decoupling control approach incorporates the advantages of both the BPNNI and the IMC. Effectiveness of thus proposed control approach is verified by means of simulation and real-time hardware-in-the-loop (HIL) experiments.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 6; 961-972
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A multi-model approach to Saint-Venant equations: A stability study by LMIs
    Autorzy:
    Dos Santos Martins, V.
    Rodrigues, M.
    Diagne, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/330130.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    równanie Saint-Venanta
    system nieskończenie wymiarowy
    stabilność wykładnicza
    Saint-Venant equation
    multi-model
    LMIs
    infinite dimensional system
    exponential stability
    strongly continuous semigroup
    internal model boundary control
    Opis:
    This paper deals with the stability study of the nonlinear Saint-Venant Partial Differential Equation (PDE). The proposed approach is based on the multi-model concept which takes into account some Linear Time Invariant (LTI) models defined around a set of operating points. This method allows describing the dynamics of this nonlinear system in an infinite dimensional space over a wide operating range. A stability analysis of the nonlinear Saint-Venant PDE is proposed both by using Linear Matrix Inequalities (LMIs) and an Internal Model Boundary Control (IMBC) structure. The method is applied both in simulations and real experiments through a microchannel, illustrating thus the theoretical results developed in the paper.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2012, 22, 3; 539-550
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sterowanie kaskadowe poziomem wody w układzie dwóch zbiorników
    Cascade control of water level in two tanks system
    Autorzy:
    Tomera, M.
    Kula, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/268112.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
    Tematy:
    układ regulacji kaskadowej
    regulator PID
    regulator IMC
    mikrokontroler sygnałowy
    cascade control system
    PID controller
    internal model controller
    IMC
    digital signal processor
    Opis:
    W pracy przedstawiono układ sterowania poziomem wody w układzie dwóch zbiorników o swobodnym wypływie. Do sterowania poziomem wody w dolnym zbiorniku, zastosowany został kaskadowy układ regulacji. Dla porównania uzyskanej jakości sterowania, dodatkowo przeprowadzone zostały badania w układzie z jedną pętlą sprzężenia zwrotnego z zastosowaniem regulatora PID oraz nieliniowego regulatora z modelem wewnętrznym (NIMC). W celu przetestowania opracowanego oprogramowania w środowisku MATLAB/Simulink przeprowadzone zostały wstępne badania układów sterowania a następnie wykonano próby w układzie rzeczywistym, gdzie przygotowywane algorytmy zostały zaimplementowane w mikrokontrolerze sygnałowym TMS320F28335.
    The paper presents a control system of the water level in the system of two tanks with free flow. In order to solve the problem of accurate control of the water level in the lower tank cascade control system was used. In order to evaluate the results of the cascade control, additional tests were carried out in internal model and one loop PID control system . Setting of controllers were determined using the direct synthesis method. Preliminary studies of control systems were conducted in MATLAB/Simulink environment to test prepared software. Final tests were performed in a real time system, where the designed control algorithms were programmed in the digital signal processor TMS320F28335. To compare the control performance of used cascade control system.
    Źródło:
    Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2014, 40; 127-132
    1425-5766
    2353-1290
    Pojawia się w:
    Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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