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Wyświetlanie 1-15 z 20
Tytuł:
Modelowanie i symulacja pracy generatora wiatrowego z magazynem energii w środowisku MATLAB & SIMULINK
Modeling and Simulation of Working a Wind Generator with Energy Storage in MATLAB & SIMULINK Environment
Autorzy:
Jarmuda, Tomasz
Yurasyk, Mykhailo
Powiązania:
https://bibliotekanauki.pl/articles/34655819.pdf
Data publikacji:
2022
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
turbina wiatrowa
modelowanie elektrowni wiatrowej
środowisko MATLAB & SIMULINK magazynowanie energii
wind turbine
wind farm modeling
MATLAB & SIMULINK environment
energy storage
Opis:
Publikacja ma charakter naukowo-techniczny i poświęcona jest modelowaniu oraz symulacji pracy generatora wiatrowego w postaci rzeczywistej turbiny wiatrowej o mocy 1,6 kW firmy Travere Industries z systemem magazynowania energii w środowisku MATLAB & SIMULINK. W pracy przedstawiono algorytm implementacji modelu z doborem elementów, które można warunkowo podzielić na dwa podsystemy. Pierwszy podsystem to model, który symuluje turbina wiatrowa za pomocą układu turbina-generator. Zastosowano w nim dwa bloki, z których jeden pełni rolę generatora PMSG, który na wyjściu generuje trójfazowy prąd przemienny (prąd stały dla obciążenia uwzględniono poprzez konwerter mostkowy). Drugi podsystem realizuje magazynowanie energii poprzez dwukierunkową przetwornicę DC/DC, która umożliwia oddzielenie akumulatora od szyny obciążenia. Model turbiny wiatrowej zaimplementowano w środowisku SIMULINK. W artykule przedstawiono oscylogramy z wynikami, uzyskanymi na podstawie symulacji dla różnych wartości prędkości wiatru. Przeprowadzono dokładną analizę otrzymanych wyników badań. Artykuł kończą podsumowanie i wnioski.
The publication is of a scientific and technical nature and is devoted to modeling and simulating the operation of a wind generator in the form of a real wind turbine 1.6 kW from Travere Industries with an energy storage system in the MATLAB & SIMULINK environment. The paper presents the model implementation algorithm with the selection of elements that can be conditionally divided into two subsystems. The first subsystem is a model that simulates a wind turbine with a turbine-generator system. It uses two blocks, one of which acts as a PMSG generator that generates three-phase alternating current at the output (direct current for the load is accounted for through a bridge converter). The second subsystem performs energy storage via a bi-directional DC / DC converter, which allows the battery to be separated from the load bus. The wind turbine model was implemented in the SIMULINK environment. The article presents oscillograms with the results obtained on the basis of simulations for various values of wind speed. A thorough analysis of the obtained test results was carried out. The article ends with a summary and conclusions.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2022, 107; 55-68
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A methodology of identification and metaidentification research on the example of Day Ahead Market System
Autorzy:
Marlęga, Radosław
Powiązania:
https://bibliotekanauki.pl/articles/2201618.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
Day Ahead Market System
identification
MATLAB and Simulink environment
methodology
metaidentification
Opis:
The paper contains selected research results in the field of identification and metaidentification of the Day Ahead Market system of TGE S.A. Due to the proposed new approach to identification, a methodology for conducting research has been developed, which requires eight stages. Then, both the tasks and research objectives as well as the form of research occurring at all stages of research in order to meet the distinguished specific objectives and the general purpose of the research were shown in detail. Then an example of both identification and metaidentification of Day Ahead Market systems was shown. The obtained models and metamodels confirm the need and possibility of conducting this type of research at TGE S.A.
Źródło:
Studia Informatica : systems and information technology; 2022, 2(27); 109--137
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cluster analysis on the example of work data of the National Power System. Part 1, Comparative study of methods and conditions
Autorzy:
Tchórzewski, Jerzy
Kania, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/1819255.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
cluster analysis
National Electric Power System
MATLAB and simulink environment
ward's algorithm
self-organizing maps
Opis:
The paper presents the results of the research on the comparative study of the methods of cluster analysis and conditions, which was carried out from the point of view of their use, on the example of data concerning the operation of the National Power System. Two algorithms were used for the clustering analysis, i.e. the Ward algorithm and the algorithm of self-organizing two-dimensional maps. Cluster analysis was preceded by a review of hierarchical and non-hierarchical methods of data analysis and a description of the prepared experiment. The obtained results were interpreted. The work consists of two parts published under the same main title with different subtitles. This part 1 presents the results of the conducted review of selected methods of cluster analysis and the research conditions resulting from the adopted data on the operation of the National Power System. Part 2 presents the cluster analysis process and selected research results and their discussion.
Źródło:
Studia Informatica : systems and information technology; 2019, 1-2(23); 25--41
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-objective analysis of Polish domestic power system development from point of view of unmanned factories. A cybernetic issue
Autorzy:
Tchórzewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/950676.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
development model
identification process
MATLAB and Simulink environment
multi-parameters analyze
power system modeling
unmanned factory
Opis:
The paper contains selected results of research on the Domestic Power System (DPS) as an unmanned factory. Models of the DPS system of the MISO type, obtained as a result of identification for 14 inputs and 4 outputs were presented. Particular attention was given to the identification and the assessment of the DPS development based on the systems and control theory. The obtained models of the DPS development were analyzed and discussed. The studies were obtained model of the development of the DPS, and on the basis of is knowledge of the structural and parametrical changes of system development. The model can be used to analyze the design and development of the system from the point of view of the growth of internal organization system and the transition to higher levels of control.
Źródło:
Archives of Electrical Engineering; 2016, 65, 3; 541-558
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design and research on artificial neural networks as electrical power system development models based on IEEE RTS data
Autorzy:
Tchórzewski, J.
Pytel, M.
Powiązania:
https://bibliotekanauki.pl/articles/97683.pdf
Data publikacji:
2015
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
artificial neural network
IEEE RTS data
electrical power system
MATLAB and Simulink environment
testing sensitivity
simulation studies
Opis:
The paper presents selected results of research on the design of artificial neural networks and training them using the electrical power system development model (EPS or EP system) based on IEEE RTS 96 test data, i.a. creation of training and test files, development of architecture of the artificial neural network, selection of parameters of the network, selection of appropriate training and testing method, etc. As a result of the development and training an ANN, the following EP system development models were obtained, which were examined for sensitivity to changes of the number of hidden layers, number of neurons in a layer, activation function, training method, etc. Subsequently, simulation models for studying fitness of the obtained models to the real systems. Interesting results were obtained, e.g. the method of the neural modelling of the system, the optimal architecture of the ANN that is a model of the system, possibilities and directions to improve a neural model of the system, etc.
Źródło:
Computer Applications in Electrical Engineering; 2015, 13; 231-244
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Systemic Evolutionary Algorithm inspired by methods of Quantum computer sciences for the improvement of the accuracy of neural models in electrical engineering and electrical power engineering
Autorzy:
Tchórzewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/97692.pdf
Data publikacji:
2016
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
Evolutionary Algorithms
Quantum computer science
Quantum mixed number
Systems modelling
Robot PR–02
Artificial Neural Networks
MATLAB and Simulink environment
Electric Power Exchange
Opis:
The work contains selected results of research on the application of quantum computer science to a systemic evolutionary algorithm for the purpose of improving accuracy of neural models in electrical engineering and electrical power engineering. Artificial neural networks are used in neural modeling, which networks are designed and taught models of systems using available numerical data. Parameters of neural networks, and especially, elements of weight matrices, biases as well as parameters of activation functions may be improved using evolutionary algorithms. It seems that applying solutions offered by quantum computer science to systemic evolutionary algorithm, and especially, as regards creation of quantum initial population, quantum crossover and mutation operators as well as selection, considerably improves the accuracy of modelling, which was verified in MATLAB and Simulink environment using selected examples such as RP–02 robot’s arm movement, the development of the Polish Electrical Power Exchange (polish: TGEE) system, etc.
Źródło:
Computer Applications in Electrical Engineering; 2016, 14; 280-296
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quantum-inspired artificil neural networks and evolutionary algorithms methods applied to modeling of the polish electric power exchange using the day-ahead market data
Autorzy:
Tchórzewski, J.
Ruciński, D.
Powiązania:
https://bibliotekanauki.pl/articles/94957.pdf
Data publikacji:
2018
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
artificial intelligence methods
MATLAB and Simulink environment
modeling of business intelligence process
quantum inspired method
smart electric power system
electric power exchange system
Opis:
The paper presents selected results of research on the use of artificial intelligence methods, which are inspired by quantum computing solutions for modelling of electric power exchange systems. Methods used in the modelling of quantum data acquisition, quantization and dequantization of information as well as the methods of performing quantum computations were emphasized. Furthermore, we have analysed the results obtained for the neural model and for the evolutionary algorithm inspired by the quantum computer science. Eventually, the model was verified on the example of the neural model of the Electric Power Exchange (EPE).
Źródło:
Information Systems in Management; 2018, 7, 3; 201-212
2084-5537
2544-1728
Pojawia się w:
Information Systems in Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of data quoted on the Day-Ahead Market of TGE S.A. using Statistics and Machine Learning Toolbox
Autorzy:
Tchórzewski, Jerzy
Longota, Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/2201615.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
artificial neural network
cluster analysis
Day-Ahead Market
k-means method
Matlab and Simulink environment
Statistics and Machine Learning Toolbox
Ward’s method
Opis:
The publication contains the results of research in the field of cluster analysis carried out using data quoted on the Day-Ahead Market of TGE S.A. Two methods were used in the analysis, one hierarchical known as the Ward’s method, and the other non-hierarchical - the k-means method. Many interesting research results have been obtained, which are illustrated, among others, in in the form of dendrograms, silhouette graphs and graphs in the form of clusters. Data on the volume and the volumeweighted average price of electricity were examined for various types of quotations: fixing 1, fixing 2 and continuous quotations. The research was carried out in the MATLAB and Simulink environments using a library called Machine and Statistics Learning Toolbox. Selected test results were interpreted.
Źródło:
Studia Informatica : systems and information technology; 2022, 2(27); 49--74
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Systemic Evolutionary Algorithm inspired by the methods of quantum computing to improve the accuracy of the model on the neuronal motion the end of the robot arm PR–02
Autorzy:
Wołynka, Ł.
Tchórzewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/97323.pdf
Data publikacji:
2016
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
Evolution algorithms
Quantum computing
Modeling systems
Robot PR–02
Artificial Neural Networks
Environment MATLAB and Simulink
Opis:
The article contains selected results of research on the design Systemic Evolutionary Algorithm inspired by quantum informatics methods and description how to implement it in Matlab language in order to use for improve parameters neural model on example robot robot PR–02 arm motion. Initial population was based on weights matrix of artificial neural network. Randomly selected population of individual chromosomes in both the initial and in the following parent population have been converted to binary values, and these to quantum values by using created for this purpose quatization() function. Quantum gene value was determined on the basis of stonger pure state represented by different chromosomes, to which dequantization() function was used. Selection of individuals was conducted based on the model of neural robot PR–02 motion implemented in Matlab language using calculationsNeuralNetworks() function.
Źródło:
Computer Applications in Electrical Engineering; 2016, 14; 297-312
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neural modeling of the electric power stock market in usage of MATLAB and Simulink tools for the day ahead market data
Autorzy:
Ruciński, D.
Tchórzewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/94831.pdf
Data publikacji:
2016
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
neuronal modelling
MATLAB
Simulink environment
simulation research
artificial neural network
Opis:
The work contains selected results of the modelling of neural Electric Power Exchange (EPE) in Poland. For modelling EPE system, artificial neural network (ANN) was constructed. ANN was learned and tested using of the next day market data. Generated neural model was used for simulation tests and susceptibility tests. Suitable model was implemented in Simulink. As a result of simulation tests and susceptibility testing a lot of interesting research results were obtained.
Źródło:
Information Systems in Management; 2016, 5, 2; 215-226
2084-5537
2544-1728
Pojawia się w:
Information Systems in Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of the size of the training set on the predictive abilities of neural models on the example of the Day-Ahead Market System of TGE S.A.
Autorzy:
Ruciński, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/2175162.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
Day Ahead Market
MATLAB environment
Simulink environment
neural modeling
prediction time
electricity prices
Opis:
The main object of the research was to examine the acceptable time horizon that could be predicted by previously learned models of the Day-Ahead Market (DAM) TGE S.A. system. The article contains the results of research on the predicting ability of different ANN models of the DAM TGE S.A. The research was conducted based on data covering the operation of the Polish stock exchange in the period from 2002 to 2019 (the first half of the year). The research was carried out based on the learned ANN models of the DAM system. Data were taken for examination covering the time from 2002 to 2019 (1st half of the year) and was divided into a different period, i.e., a month, a quarter, and a half-year., year, etc. The MSE, MAE, MAPE, and R2 were adopted as the criteria for assessing the ability of individual models to predict electricity prices. The research was carried out by successively expanding forecasting periods in a rolling manner. For example, for a half-year, prediction time intervals were increased from one week to month, two months, quarter, half-year, etc. results for a model representing a given period. A lot of interesting research results were obtained.
Źródło:
Studia Informatica : systems and information technology; 2022, 1(26); 5--22
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of a web application supporting gym management in terms of control and systems theory
Autorzy:
Tchórzewski, Jerzy
Nabiałek, Wojciech
Księżopolski, Artur
Powiązania:
https://bibliotekanauki.pl/articles/27323576.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
gym management
identity theory
MATLAB
Simulink environment
modeling
simulations
web systems
Opis:
An analysis of the web application supporting the management of the gym was carried out, which was designed in terms of the theory of control and systems. The obtained results of measurements of input and output quantities of selected subsystems were used to carry out the identification, as a result of which models of web application subsystems were obtained. On the basis of the obtained subsystem models, appropriate models were then designed in Simulink for the purposes of simulation and comparative studies of the behavior of subsystem models in relation to real systems that are web applications, including an appropriate analysis of the web application system model was carried out under the name of the gym on its selected subsystems, including in particular the subsystem called Generating a diet. In addition, testing and simulation studies were carried out to check the correct functioning of the web application management system model and the introduction of appropriate changes to the model was proposed, and the obtained research results were discussed, indicating the high accuracy of the obtained web application models.
Źródło:
Studia Informatica : systems and information technology; 2023, 1(28); 47--68
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification modeling of Polish electric power exchange
Autorzy:
Marlęga, R.
Tchórzewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/94879.pdf
Data publikacji:
2016
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
parametrical model
identification modeling
simulation research
susceptibility testing
MATLAB
Simulink environment
Opis:
This paper contains selected results of identification modeling of Polish Electric Power Exchange (EPE). In order to obtain EPE system model it was performed identification based on figures of EPEís Day-Ahead Market. During performing identification process, parametric arx model in System Identification Toolbox environment was utilized. Generated EPE parametric model has been further used for performing simulation tests and realization of susceptibility testing. Suitable models were implemented in Simulink software. As a result of simulation and susceptibility testing, many interesting findings has been delivered.
Źródło:
Information Systems in Management; 2016, 5, 2; 195-204
2084-5537
2544-1728
Pojawia się w:
Information Systems in Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neural model of the vehicle control system in a racing game. Part 1, Design and its implementation
Autorzy:
Tchórzewski, Jerzy
Bolesta, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/2175160.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
Artificial Neural Networks
Godot Engine
MATLAB
Simulink environment
CLion IDE
video games
Opis:
The publication consist of two parts. Part 1 contains the results of research on the design, learning and implementation of the Perceptron Artificial Neural Network as a model of neural control of car movement on the racetrack. This part 1 presents the results of studies, including review of the methods used in video racing games from the point of view of the selection of a method that can be used in the own research experiment, selection of the Artificial Neural Network architecture, its teaching method and parameters for the intended research experiment, selection of the data measurement method to be used in ANN training, as well as development design of a car game, its implementation and conducting simulation tests. In designing the game of vehicle traffic on the racetrack, among others, Godot Engine game engine and MATLAB and Simulink programming environment. The numerical data (14 input quantities and two output quantities) for ANN training were prepared with the use of semi-automatic measurement of the race track control points. Part 2 shows i.a. the results of the testing and simulation experiments that confirm the correct functioning of both the game and the model of the neural control system. There were also shown, among others, the possibility of continuing research in the field of increasing the flexibility of the racing game, in particular the flexibility of the vehicle traffic control system through the use of other artificial intelligence methods, such as ant algorithms or evolutionary algorithms.
Źródło:
Studia Informatica : systems and information technology; 2022, 1(26); 23--44
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
State-space model and implementation Polish Power Exchange in Matlab and Simulnk environments
Autorzy:
Marlęga, R.
Powiązania:
https://bibliotekanauki.pl/articles/94817.pdf
Data publikacji:
2017
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
simulation research
parametric model
identification modeling
Matlab environment
Simulink environment
Business Intelligence
BI
state space
Opis:
This work contains selected results of research on modelling identification of Polish Power Exchange (TGEE) on the example of the figures quoted on the Day Ahead Market (DAM) on TGEE in Poland. In order to obtain a model of the TGEE system on the beginning it was conducted to identify the figures for the period 01.01.2013-31.12.2015 obtaining discrete parametric model arx in MATLAB and Simulink environments using System Identification Toolbox (SIT). The resultant model was converted to a continuous parametric model, and that one on a continuous model in the state space. On the basis of obtained equations of state and outputs, there was interpreted a state variables and parameters of the selected model, i.e. selected elements of the matrix A and matrix B. Research continues.
Źródło:
Information Systems in Management; 2017, 6, 4; 294-308
2084-5537
2544-1728
Pojawia się w:
Information Systems in Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 20

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