Temat: control parameter - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: The method of selection of optimum fitting parameters for stationary photovoltaic systems and optimum control parameters for tracking photovoltaic systems
Metoda doboru optymalnych parametrow montazu dla stacjonarnych i sterowania dla nadaznych systemow fotowoltaicznych
Autorzy:: Sarniak, M.
Tematy:: solar radiation
solar collector
photovoltaic conversion
photovoltaic panel
fitting parameter
control parameter
meteorological station; Pokaż więcej
Data publikacji:: 2012
Powiązania:: https://bibliotekanauki.pl/articles/792121.pdf Link otwiera się w nowym oknie
Źródło:: Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 1
1641-7739
Pojawia się w:: Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Optimizacja dinamicheskogo rezhima povorota strelovogo krana
Optimizing the dynamic modes of slewing jib crane
Autorzy:: Loveykin, V.
Melnichenko, V.
Tematy:: jib
crane
dynamic model
braking
torque moment
control parameter
mathematical model; Pokaż więcej
Data publikacji:: 2013
Powiązania:: https://bibliotekanauki.pl/articles/77156.pdf Link otwiera się w nowym oknie
Źródło:: Motrol. Motoryzacja i Energetyka Rolnictwa; 2013, 15, 3
1730-8658
Pojawia się w:: Motrol. Motoryzacja i Energetyka Rolnictwa
Opis:: Применен способ уменьшения колебаний груза на гибком подвесе при работе механизма поворота стрелового крана во время переходных процессов путем оптимизации режимов пуска и торможения приводного механизма по динамическому критерию, представляющего собой среднее зна чение динамической составляющей мощно сти привода за время движения.
The method of cargo oscillation reduction, during the lifting machines operation, has been considered in the article. The start-up mode of the crane swinging mechanism optimization has been carried out by means of variational calculation. The criterion which is the average value of the dynamic component of the drive power of the move. has been used. And this criterion has been subject to minimization. The torque moment of the driving mechanism, acting towards the crane swinging mechanism, has been selected as a control parameter.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Influence of control parameters on synchronization stability of virtual synchronous generator
Autorzy:: Zhang, Yanxia
Cheng, Yachao
Liu, Kaixiang
Han, Yue
Tematy:: control parameter
frequency modulation coefficient
phase plane method
synchronization stability
virtual synchronous generator; Pokaż więcej
Data publikacji:: 2022
Powiązania:: https://bibliotekanauki.pl/articles/2172794.pdf Link otwiera się w nowym oknie
Źródło:: Archives of Electrical Engineering; 2022, 71, 4; 811--828
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Opis:: Different from the synchronization mechanism of synchronous generators, the non-synchronous generators must be synchronized with the grid through a controller. Generally, the virtual synchronous generator (VSG) control strategy is adopted for this purpose. In view of the current situation, where the control loops are not comprehensively considered in the research of the synchronization stability of the VSG, this paper considers multiple control loops, such as active frequency loops, virtual governors, power filters and current constraint control, to establish the mathematical model of the VSG and infinite system. On this basis, the correlation formula between power angle difference and control parameters is deduced. Adopting the phase plane method, the influence of different control loops and their parameters on the transient synchronization stability is analyzed. Finally, a setting principle of the frequency modulation coefficient of virtual governors is proposed, which not only meets the response speed of control systems, but also has good control performance.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Research of improved mathematical models at operational tests of diesel locomotives
Issledovanie primenenija usovershenstvovannykh matematicheskikh modelejj pri provedenii ehkspluatacionnykh ispytanijj teplovodov
Autorzy:: Falendysh, A.
Zinkivskyi, A.
Bragin, N.
Tematy:: diesel locomotive
operational test
mathematical model
control parameter
technical condition
rolling stock
test result; Pokaż więcej
Data publikacji:: 2014
Powiązania:: https://bibliotekanauki.pl/articles/792851.pdf Link otwiera się w nowym oknie
Źródło:: Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2014, 14, 1
1641-7739
Pojawia się w:: Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Information Age System For Education In Paradigmal Forecast Discourse
Autorzy:: Bekh, Volodymyr P.
Bekh, Yuliya
Tematy:: planetary personality
industrial education
information education
spirit of the era
science
evaluation
free education
theory of education
cognitive pedagogy
personalization
individualization
control parameter; Pokaż więcej
Data publikacji:: 2019
Powiązania:: https://bibliotekanauki.pl/articles/476201.pdf Link otwiera się w nowym oknie
Źródło:: MIND Journal; 2019, 8; 1-15
2451-4454
Pojawia się w:: MIND Journal
Opis:: The state of origin of the system of education and upbringing of the information age realized in the algorithm of self-organization is predicted on the basis of the regularities of the first stage of the life cycle of the social system of industrial education; the state of the "spirit of the era", which carries the information society, is estimated as an example of a new type of life of the planetary community; worldview, ideological and conceptual prerequisites for forming a new type of education are analyzed; the state of fundamental science is highlighted as a basis for generating a modernization of the content of education in the 21st century; the problems of the theory of education and pedagogy, which are not solved in the perspective of the state educational policy (especially the means of pedagogical influence on the individual, including in the sphere of strategy, tactics and operational management of education) are revealed.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Earplug Actuator Selection for a Miniature Personal Active Hearing Protection System
Autorzy:: Pawełczyk, M.
Latos, M.
Tematy:: active noise control
fixed-parameter control
high-level noise
nonstationary noise
feedforward control
earplug
hearing protection; Pokaż więcej
Data publikacji:: 2010
Powiązania:: https://bibliotekanauki.pl/articles/178052.pdf Link otwiera się w nowym oknie
Źródło:: Archives of Acoustics; 2010, 35, 2; 213-222
0137-5075
Pojawia się w:: Archives of Acoustics
Opis:: There are many industrial environments which are exposed to a high-level noise. It is necessary to protect people from the noise. Most of the time, the consumer requires a miniature version of a noise canceller to satisfy the internal working place requirements. Very important thing is to select the most appropriate personal hearing protection device, for example an earplug. It should guarantee high passive noise attenuation and allow for secondary sound generation in case of active control. In many cases the noise is nonstationary. For instance, some of the noisy devices are switched on and off, speed of some rotors or fans changes, etc. To avoid any severe transient acoustic effects due to potential convergence problems of adaptive systems, a fixed-parameter approach to control is appreciated. If the noise were stationary, it would be possible to design an optimal control filter minimising variance of the signal being the effect of the acoustic noise and the secondary sound interference. Because of noise nonstationarity for most applications, the idea of generalised disturbance defined by a frequency window of different types has been developed by the authors and announced in previous publications. The aim of this paper is to apply such an approach to different earplugs and verify its noise reduction properties. Simulation experiments are conducted based on real world measurements performed using the G.R.A.S. artificial head equipped with an artificial mechanical ear, and the noise recorded in a power plant.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Optimization by the convergence control parameter in iterative methods
Autorzy:: Turkyilmazoglu, Mustafa
Tematy:: fixed point iteration
Adomian decomposition method
homotopy analysis method
convergence control parameter
iteracja punktu stałego
metoda dekompozycji Adomiana
metoda analizy homotopii
parametr kontroli konwergencji; Pokaż więcej
Data publikacji:: 2024
Powiązania:: https://bibliotekanauki.pl/articles/58907598.pdf Link otwiera się w nowym oknie
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2024, 23, 2; 105-116
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Opis:: The classical iterative methods, such as the fixed point iteration, the Adomian decomposition method and the homotopy analysis method are discussed in the present paper. It is proven that adding a convergence control parameter into these makes them powerful and rapidly converging to the true solution, whilst the classical correspondences may fail to or slowly converge to the desired solution. The key is to demonstrate the presence of a continuous interval of the convergence control parameter for the considered problem. This allows convergence of such modified iterative methods with an optimum convergence control parameter obtained from squared residual errors of either the original equation or the derivative of iterative solution with respect to the convergence control parameter.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The method of estimating kinematic road excitation with use of real suspension responses and model
Autorzy:: Klockiewicz, Zbyszko
Ślaski, Grzegorz
Tematy:: suspension
kinematic excitation
remote parameter control
simulation
PID controller
zawieszenie
wymuszenie kinematyczne
zdalna kontrola parametrów
symulacja
regulator PID; Pokaż więcej
Data publikacji:: 2019
Powiązania:: https://bibliotekanauki.pl/articles/127825.pdf Link otwiera się w nowym oknie
Źródło:: Vibrations in Physical Systems; 2019, 30, 2; 1-10
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Opis:: The paper deals with the problem of vertical kinematic excitations in road vehicle dynamics simulation, with the main focus on reconstruction of random excitations using measured dynamic responses of a car suspension. The possibility of causing excitations adequately in terms of chosen conditions of exploitation and in reliable way is crucial to properly asses ride comfort, ride safety as well as rattle space and fatigue strength of suspension elements. The paper presents a method of generating equivalent kinematic excitation allowing for reconstruction of suspension dynamic responses in simulation. The method uses unsprung mass accelerations acquired during test rides and a model of vertical suspension dynamics. The method uses estimated displacements of unsprung mass as a preliminary approximation of kinematic excitation and tracking control system with a PID controller, which causes corrections of kinematic excitations transforming it to the form that allows for faithful reconstruction of unsprung mass accelerations and, in turn, kinematic excitations. The paper presents the basic structure of kinematic excitations’ reconstruction system as well as a method of tuning PID controller’s coefficients so that the error in estimation is minimized. Research and verification of results were done using a sine chirp signal and constant frequency sine waves. The similarity of estimated road profiles is high with error no larger than 8% of the original signal’s amplitude.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Self-adaptation of parameters in a learning classifier system ensemble machine
Autorzy:: Troć, M.
Unold, O.
Tematy:: komputerowe uczenie się
system klasyfikujący
sterowanie adaptacyjne
sterowanie parametryczne
machine learning
extended classifier system
self-adaptation
adaptive parameter control; Pokaż więcej
Data publikacji:: 2010
Powiązania:: https://bibliotekanauki.pl/articles/907767.pdf Link otwiera się w nowym oknie
Źródło:: International Journal of Applied Mathematics and Computer Science; 2010, 20, 1; 157-174
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Opis:: Self-adaptation is a key feature of evolutionary algorithms (EAs). Although EAs have been used successfully to solve a wide variety of problems, the performance of this technique depends heavily on the selection of the EA parameters. Moreover, the process of setting such parameters is considered a time-consuming task. Several research works have tried to deal with this problem; however, the construction of algorithms letting the parameters adapt themselves to the problem is a critical and open problem of EAs. This work proposes a novel ensemble machine learning method that is able to learn rules, solve problems in a parallel way and adapt parameters used by its components. A self-adaptive ensemble machine consists of simultaneously working extended classifier systems (XCSs). The proposed ensemble machine may be treated as a meta classifier system. A new self-adaptive XCS-based ensemble machine was compared with two other XCS-based ensembles in relation to one-step binary problems: Multiplexer, One Counts, Hidden Parity, and randomly generated Boolean functions, in a noisy version as well. Results of the experiments have shown the ability of the model to adapt the mutation rate and the tournament size. The results are analyzed in detail.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Finite-dimensional H∞ control of a parallel-flow heat exchange process
Autorzy:: Sano, H.
Tematy:: distributed parameter system H∞ control
residual mode filter
semigroup
parametr kontroli systemu H∞
półgrupa
RMF; Pokaż więcej
Data publikacji:: 2017
Powiązania:: https://bibliotekanauki.pl/articles/200376.pdf Link otwiera się w nowym oknie
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 1; 11-19
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Opis:: This paper is concerned with the H∞ control problem of a coupled transport-diffusion system with Neumann boundary condition, related to parallel-flow heat exchange process. It is shown that, by using the previous approach for a single diffusion system, the H∞ control problem can be solved by constructing a residual mode filter (RMF)-based controller which is of finite-dimension. A numerical simulation result is given to demonstrate the validity of the proposed method.
Dostawca treści:: Biblioteka Nauki

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