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Wyszukujesz frazę "predictive controller" wg kryterium: Temat


Wyświetlanie 1-7 z 7
Tytuł:
Methods of controller synthesis using linear matrix inequalities and model predictive control
Autorzy:
Miller, A.
Rybczak, M.
Powiązania:
https://bibliotekanauki.pl/articles/135474.pdf
Data publikacji:
2015
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
controller synthesis
LMI
MPC
predictive controller
controller synthesis methods
optimization methods
Opis:
Controllers based on linear matrix inequalities (LMI) and model predictive control (MPC) both use optimization methods; there are however significant differences between them. In case of LMI controllers, optimization is carried out during controller synthesis, because LMI’s are an optimization tool that requires a linear programming problem being solved. With MPC controllers, however, optimization methods are not used as much in controller synthesis as in controller algorithm operation, to determine optimal control signal values based on the found minimum of the criteria function. A square function is used with boundaries from above and below, which requires a square programming problem, with boundaries for decision variables, being solved. In this paper controller synthesis methods using LMI and MPC are shown, with a focus on the steps that need to be performed, and a comparison of both methods.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2015, 43 (115); 22-28
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neuro-fuzzy control design of processes in chemical technologies
Autorzy:
Blahová, L.
Dvoran, J.
Kmeťová, J.
Powiązania:
https://bibliotekanauki.pl/articles/229832.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
neuro-fuzzy control
chemical reactor
neural predictive controller
ANFIS
laboratory process
Opis:
The paper presents design of neuro-fuzzy control and its application in chemical technologies. Our approach to neuro-fuzzy control is a combination of the neural predictive controller and the neuro-fuzzy controller (Adaptive Network-based Fuzzy Inference System - ANFIS). These controllers work in parallel. The output of ANFIS adjusts the output of the neural predictive controller to enhance the control performance. Such design of an intelligent control system is applied to control of the continuous stirred tank reactor and laboratory mixing process.
Źródło:
Archives of Control Sciences; 2012, 22, 2; 233-250
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adaptive Predictive Control of a Distillation Column
Autorzy:
Yoon, T. W.
Yang, D. R.
Lee, K. S.
Kwon, Y. M.
Powiązania:
https://bibliotekanauki.pl/articles/908309.pdf
Data publikacji:
1999
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
adaptacyjny układ sterowania
sterownik predykcyjny
adaptive control
multivariable predictive controller
distillation column
Opis:
Distillation processes reveal complicated multivariable nonlinear dynamics for which it is difficult to design a high-performance control system. This paper proposes an adaptive control scheme for a distillation column. The proposed adaptive system consists of a multivariable receding-horizon predictive controller using a transfer function model and a recursive least-squares (RLS) based estimator. Simulations show a consistent closed-loop performance despite the uncertain nonlinear characteristics of the distillation column.
Źródło:
International Journal of Applied Mathematics and Computer Science; 1999, 9, 1; 193-206
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Predictive current controller with mtpa control strategy – simulation results
Predykcyjny regulator prądu w strategii mtpa – badania symulacyjne
Autorzy:
Piotuch, R.
Powiązania:
https://bibliotekanauki.pl/articles/407715.pdf
Data publikacji:
2015
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
synchronous machine
predictive current controller
MTPA strategy
field analysis
maszyna synchroniczna
predykcyjny regulator prądu
strategia MTPA
analiza polowa
Opis:
Electric and hybrid vehicle drive systems are commonly equipped with Permanent Magnet Synchronous Motors, because they offer high efficiency in broad range of speed and torque, and also due to special current development techniques they can work with high speeds. The paper presents simulation results for predictive current controller used in PMSM drive system. The results were obtained for high speed operations with Maximum Torque Per Ampere (MTPA) control strategy, which allows to develop set torque value with the smallest possible currents values. Predictive current controller equations are based on IPMSM mathematical model which considers Ld and Lq inductances changes. Additionally MTPA strategy also considers inductances changes in d- and q-axis.
Układy napędowe samochodów elektrycznych i hybrydowych są coraz częściej wyposażane w silniki elektryczne z magnesami trwałymi. Napędy te oferują wysoką sprawność w szerokim zakresie prędkości i momentu obrotowego, a poprzez odpowiednie sterowanie zapewniają pracę przy wysokich prędkościach obrotowych. W pracy przedstawiono wyniki badań symulacyjnych predykcyjnego regulatora prądu dla silnika synchronicznego z magnesami zagnieżdżonymi. Regulator pracuje przy wykorzystaniu strategii sterowania MTPA (ang. Maximum Torque Per Ampere)., która zapewnia wypracowanie odpowiedniego momentu przy możliwie najmniejszych wartościach prądów fazowych. Równania predykcyjnego regulatora prądu zostały oparte o zmodyfikowany model matematyczny silnika synchronicznego z magnesami zagnieżdżonymi uwzględniający zmienność indukcyjności Ld i Lq. Dodatkowo w równaniach opisujących działanie strategii MTPA uwzględniono zmienność indukcyjności w funkcji prądu.
Źródło:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2015, 2; 18-21
2083-0157
2391-6761
Pojawia się w:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of a Predictive PID Controller Using Particle Swarm Optimization
Autorzy:
Mustafa, Norhaida
Hashim, Fazida Hanim
Powiązania:
https://bibliotekanauki.pl/articles/1844451.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
proportional integral derivative controller
particle swarm optimization (PSO) algorithm
optimization
predictive PID
Opis:
The proportional-integral-derivative (PID) controller is widely used in various industrial applications such as process control, motor drives, magnetic and optical memory, automotive, flight control and instrumentation. PID tuning refers to the generation of PID parameters (Kp, Ki, Kd) to obtain the optimum fitness value for any system. The determination of the PID parameters is essential for any system that relies on it to function in a stable mode. This paper proposes a method in designing a predictive PID controller system using particle swarm optimization (PSO) algorithm for direct current (DC) motor application. Extensive numerical simulations have been done using the Mathwork’s Matlab simulation environment. In order to gain full benefits from the PSO algorithm, the PSO parameters such as inertia weight, iteration number, acceleration constant and particle number need to be carefully adjusted and determined. Therefore, the first investigation of this study is to present a comparative analysis between two important PSO parameters; inertia weight and number of iteration, to assist the predictive PID controller design. Simulation results show that inertia weight of 0.9 and iteration number 100 provide a good fitness achievement with low overshoot and fast rise and settling time. Next, a comparison between the performance of the DC motor with PID-PSO, with PID of gain 1, and without PID were also discussed. From the analysis, it can be concluded that by tuning the PID parameters using PSO method, the best gain in performance may be found. Finally, when comparing between the PID-PSO and its counterpart, the PI-PSO, the PID-PSO controller gives better performance in terms of robustness, low overshoot (0.005%), low minimum rise time (0.2806 seconds) and low settling time (0.4326 seconds).
Źródło:
International Journal of Electronics and Telecommunications; 2020, 66, 4; 737-743
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A ship manoeuvring desktop simulator for developing and validating automatic control algorithms
Autorzy:
He, H.
Lataire, E.
Zwijnsvoorde, T. V.
Powiązania:
https://bibliotekanauki.pl/articles/24201421.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
automatic control
optimal tracking algorithms
manoeuvring simulator
anti-collision maneuvering
autonomous ship controller
model predictive control
waypoint path controller
authonomy of ships
Opis:
This paper presents a user‐friendly simulator developed based on Windows Forms and deployed as a test bed for validating automatic control algorithms. The effectiveness of some of the integrated track controllers has been tested with free running experiments carried out in the Towing Tank for Manoeuvres in Shallow Water in Ostend, Belgium. The controllers enable a ship to follow predefined random paths with high accuracy. Ship‐to‐ship interaction is considered in some cases. Simulator environments provide useful tools for extending the number of validation scenarios, supplementing the work performed in the towing tank. The simulator is presented with a graphical user interface, aiming at providing a good user experience, numerous test scenarios and an extensively‐validated library of automatic control algorithms. With the usage of the simulator, further evaluation of developed control algorithms by implementing extensive test runs with different ships and waterways could be made. Case studies are shown to illustrate the functionality of the simulator.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 3; 607--616
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-layer health-aware economic predictive control of a pasteurization pilot plant
Autorzy:
Karimi Pour, F.
Puig, V.
Ocampo-Martinez, C.
Powiązania:
https://bibliotekanauki.pl/articles/330591.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
model predictive control
two layers control scheme
economic optimization
health aware controller
sterowanie predykcyjne
optymalizacja ekonomiczna
kontroler zorientowany
Opis:
This paper proposes two different health-aware economic predictive control strategies that aim at minimizing the damage of components in a pasteurization plant. The damage is assessed with a rainflow-counting algorithm that allows estimating the components' fatigue. By using the results obtained from this algorithm, a simplified model that characterizes the health of the system is developed and integrated into the predictive controller. The overall control objective is modified by adding an extra criterion that takes into account the accumulated damage. The first strategy is a single-layer predictive controller with an integral action to eliminate the steady-state error that appears when adding the extra criterion. In order to achieve the best minimal accumulated damage and operational costs, the single-layer approach is improved with a multi-layer control scheme, where the solution of the dynamic optimization problem is obtained from the model in two different time scales. Finally, to achieve the advisable trade-off between minimal accumulated damage and operational costs, both control strategies are compared in simulation over a utility-scale pasteurization plant.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2018, 28, 1; 97-110
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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