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Identification and control of a Linear Time-Periodic Test Bench Using Harmonic Transfer Functions and LQR controllers 9

Identification and Control of a Linear Time-Periodic Test Be...

引用

9th International Conference on control, Decision and Information technologies, CoDIT 2023

作者： Sert, Basak Catalbas, Bahadir Uyanik, Ismail Hacettepe University Dept. of Electrical and Electronics Engineering Ankara Turkey Aselsan Inc. Defence Systems Technologies Division Ankara Turkey Yildiz Technical University Dept. of Control and Automation Engineering Istanbul Turkey

ISBN: (纸本)9798350311402

The increased need for accurately modeling the input-output characteristics of linear time-periodic (LTP) systems necessitates novel identification and control algorithms as well as new test benches for their experimental validation. This paper introduces a simple-to-build test bench for the identification and control of LTP systems. We mechanically coupled the shafts of two DC motors and fed back the angular velocity to the second motor with a time-periodic modulation. This allowed us to imitate a time-periodic load for the first DC motor, thereby yielding an experimental LTP plant. We used Matlab/Simulink target hardware support to implement the entire software in Simulink, which greatly simplifies input design, data collection, and analysis as compared to embedded programming. We used constant-frequency sinusoidal signals for the data collection on the experimental test bench. Subsequently, we estimated the harmonic transfer functions and identified the parameters of a state-space model of the proposed LTP system. We then designed a time-periodic controller in order to regulate the output of the LTP system. We designed a reference-tracking controller along with a Linear Quadratic Integrator (LQI) to improve the system performance. We validated our results through experiments on the physical LTP system plant. © 2023 IEEE.

关键词： DC motors

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Improving the Efficiency of a Multistage Evaporator Station for Sugar Production Using Neural Networks 4

Improving the Efficiency of a Multistage Evaporator Station ...

引用

4th IEEE International Conference on Modern Electrical and Energy System, MEES 2022

作者： Zaiets, Nataliia Lutska, Nataliia Vlasenko, Lidiia National University of Life and Environmental Sciences of Ukraine Det. of Automation and Robotic Systems Kyiv Ukraine National University of Food Technologies Dept. of Automation and Computer Technologies of Control Systems Kyiv Ukraine State University of Trade and Economics Dept. of Software Engineering and Cyber Security Kyiv Ukraine

ISBN: (纸本)9798350346831

The paper shows the process of developing a model of multistage evaporator station of a sugar factory based on a neural network. The neural network predicts the main performance indicators of the multistage evaporator station, such as the concentration of syrup at the output of the evaporator and the amount of evaporated water at the station. Unlike existing solutions, forecasting is performed in real time based on a set of indicators of the automation system (temperatures, flow rates, levels, pressure, density in the apparatus) and industrial laboratory (concentration of solids at the inlet to the evaporation station). The proposed neural network model has an MLP structure with 27 inputs, 2 outputs and one hidden layer with 20 neurons and predicts these indicators with an error of less than 5%. This allows to increase the informative support of the operator-technologist on the quality indicators of the enterprise without additional load on the industrial laboratory and without additional cost automatic quality devices, as well as to perform timely adjustment of the technological mode of the department. © 2022 IEEE.

关键词： Evaporation

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Total Least Squares Based Identification for Permanent Magnet Synchronous Machine 5

Total Least Squares Based Identification for Permanent Magne...

引用

5th International Conference on control systems, Mathematical Modeling, automation and Energy Efficiency, SUMMA 2023

作者： Ivanov, Dmitriy V Sandler, Ilya L Makarov, Sergey I Kolpashchikov, Sergey A Burnaevskiy, Daniil K Bezyazykova, Lubov A Samara State University of Railway Transport Dept. Digital Technologies Samara Russia Samara National Research University Dept. Information Systems Security Samara Russia Samara State University of Railway Transport Ept. Digital Technologies Samara Russia Samara State Technical University Dept. Automation and Control in Technical Systems Samara Russia Samara State University of Economics Dept. Statistics and Econometrics Samara Russia

ISBN: (纸本)9798350309126

The identification of parameters of the permanent magnet synchronous machine (PMSM) is considered. The proposed algorithm makes it possible to consider the errors in measurements of current, voltage, and electrical angular speed. Generalized total least squares (GTLS) are used to identify parameters. The simulation results confirmed the high accuracy of the resulting estimates. © 2023 IEEE.

关键词： Permanent magnets

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Simulation Model of a Pneumatic Drive for Compressing Electrodes of Stationary Contact Spot Welding Machine 5

Simulation Model of a Pneumatic Drive for Compressing Electr...

引用

5th International Conference on control systems, Mathematical Modeling, automation and Energy Efficiency, SUMMA 2023

作者： Sandler, Ilya L Ivanov, Dmitriy V Terekhin, Michail A Bragina, Irina N Lebakin, Ilya V Zaripov, Ruzil A Samara State University of Railway Transport Dept. Digital Technologies Samara Russia Samara State Technical University Dept. Automation and Control in Technical Systems Samara Russia Samara National Research University Dept. Information Systems Security Samara Russia Samara State University of Transport Higher School of Medical Engineering Institute of Innovative Development FSBEI HE SamSMU MOH Russia Dept. Digital Technologies Samara Russia

ISBN: (纸本)9798350309126

The article presents a simulation model of a pneumatic drive for electrodes of a stationary contact spot welding machine. Thanks to the developed model, it becomes possible to analyze the system, as well as visually study its operation. The result of modeling the system is the obtained transients of the elements of the pneumatic system. The developed simulation model adequately describes the state and behavior of a real system of pneumatic compression of electrodes. The work is of interest to pneumatic engineers, designers and other specialists working in the field of pneumatics and can be used for more accurate and efficient design, analysis and optimization of not only a specific system of pneumatic compression of electrodes, but also pneumatic systems in general. © 2023 IEEE.

关键词： Spot welding

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Pulling Figure of Dielectric Resonator for 3D Filament Defectoscopy 34

Pulling Figure of Dielectric Resonator for 3D Filament Defec...

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34th International Scientific Symposium Metrology and Metrology Assurance, MMA 2024

作者： Miroshnyk, Maryna Zaichenko, Olga Miroshnyk, Anatolii Hapon, Nataliia Pakhomov, Yurii Klymenko, Liubov V. N. Karazin Kharkiv National University Dept. of Theoretical and Applied System Engineering Kharkov Ukraine Kharkiv National University of Radioelectronics Dept. of Design and Operation of Electronic Devices Kharkiv Ukraine Kharkiv National University of Radioelectronics Dept. of Design Automation Kharkiv Ukraine O.M. Beketov National University of Urban Economy in Kharkiv Dept. of Computer Science and Information Technologies Kharkiv Ukraine Ukrainian State University of Railway Transport Dept. of Specialized Computer Systems Kharkiv Ukraine

ISBN: (纸本)9798350352832

The research aim is to derive connection between the parameters of dielectric resonators frequency shift and the warp defect of 3D printing filament. Object of investigation are the processes of interaction of electromagnetic wave of a dielectric resonator with filament for 3D printing. The proposed model describes the connection between the frequency shift and defect warp of filament frequency pulling depending on the load. © 2024 IEEE.

关键词： Q factor measurement

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Monitoring and Forecasting Quality Indicators of Predough Production in the Bakery Industry

Monitoring and Forecasting Quality Indicators of Predough Pr...

引用

Advanced Technology (KhPIWeek), IEEE KhPI Week on

作者： Nataliia Lutska Nataliia Zaiets Lidiia Vlasenko Andrii Zhyltsov dept. of Automation and Computer Technologies of Control Systems National University of Food Technologies Kyiv Ukraine dept. of Automation and Robotic Systems National University of Life and Environmental Sciences of Ukraine Kyiv Ukraine dept. of Software Engineering and Cyber Security State University of Trade and Economics Kyiv Ukraine dept. of electromagnetic systems The Institute of Electrodynamics of the National Academy of Sciences of Ukraine Kyiv Ukraine

ISBN: (数字)9798350384499

ISBN: (纸本)9798350384505

The work demonstrates the process of developing a machine learning model for a system for monitoring and controlling the quality of predough at a bakery. This system will provide continuous analysis of the predough parameters, such as temperature, humidity, lifting force and titranic acidity, which will ensure timely detection of deviations in the quality of the predough and avoid production problems. In addition, it will help automate the quality control process and ensure the stability of production processes. Analysis and forecasting of dough parameters will improve the quality of produced bread or other bakery products. Management based also on the predicted values of technological indicators of the predough will allow the enterprise to avoid unnecessary costs of materials and energy and increase economic efficiency. As part of the study, seven machine learning models were created and reviewed, including three linear and four varieties of binary decision trees. An analysis of the best model - a regression decision tree - was carried out, confirming its effectiveness and the validity of the resulting hierarchical structure, in particular, the prediction of important indicators of predough with a high degree of reliability, which indicates its importance in practical applications in production. The created model can be used to monitor and control product quality in real time, allowing operators to quickly identify and correct any deviations in process performance. Also, by analyzing changes in the variables of the predough production process, it is possible to identify precursors of possible production accidents or deviations in product quality, which will allow timely measures to be taken to avoid them.

关键词： Force Process control Production Machine learning Quality control Humidity Predictive models Stability analysis Monitoring Thermal stability

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Ontological Analysis of the Digital Crime Conceptual Model

Ontological Analysis of the Digital Crime Conceptual Model

引用

International computer Sciences and Information technologies (CSIT)

作者： Lidiia Vlasenko Nataliia Lutska Nataliia Zaiets Vitaliy Lysenko dept. of Software Engineering and Cyber Security State University of Trade and Economics Kyiv Ukraine dept. of Automation and Computer Technologies of Control Systems National University of Food Technologies Kyiv Ukraine dept. of Automation and Robotic Systems National University of Life and Environmental Sciences of Ukraine Kyiv Ukraine

A conceptual ontological model of Digital Crime has been developed, consisting of five non-empty classes. Identification and classification were carried out according to the experience of domestic and foreign experts. The central place of the model is occupied by objects of the Digital Crime class, which have their own attributes and are connected by various links with other objects. Objects of some classes are filled in by users, others are formed by knowledge engineers. Based on the ontological analysis, SWRL-rules are constructed that automatically form links between objects of the custom classes Digital crime and Digital evidence with objects of the Type of crime and Criminal Liability classes. The last class contains articles of the Criminal Code of Ukraine on criminal liability for digital crimes. The ontological model is developed taking into account possible requests to it. Such queries can be formed on the basis of direct relationships between human and automatic concepts. And also contain logical chains to concepts that do not contain an explicit link in the ontology. It is assumed that the model can be expanded and supplemented. The ontological model of Digital Crime can be used to share information, develop new systems and applications, improve information retrieval and ensure its accordance.

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Cloud-Based Smart Home Monitoring using ThingSpeak and ESP32

Cloud-Based Smart Home Monitoring using ThingSpeak and ESP32

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Communications, Information, Electronic and Energy systems (CIEES), International Conference on

作者： Nikolay Komitov Margarita Terziyska Zhelyazko Terziyski Dept. of Automation Information and Control Technology University of Food Technologies Plovdiv Bulgaria Dept. of Mathematics Physics and Information Technologies University of Food Technologies Plovdiv Bulgaria Dept. of Computer Science and Mathematics Trakia University Stara Zagora Bulgaria

ISBN: (数字)9798350352863

ISBN: (纸本)9798350352870

This paper presents an approach to implementing a cloud-based smart home monitoring system using the ESP32 microcontroller and ThingSpeak as the cloud platform. The proposed system provides an efficient solution for real-time monitoring of various environmental parameters, which are collected through sensors connected to the ESP32 and transmitted wirelessly to the ThingSpeak cloud. By leveraging the Internet of Things (IoT), this system enables users to remotely monitor their home environment from anywhere using a web interface. The article discusses the hardware setup, software implementation, and data visualization techniques, offering a practical guide for those interested in smart home technology and IoT integration.

关键词： Temperature sensors Temperature measurement Cloud computing Microcontrollers Data visualization Water heating Smart homes Safety Internet of Things Monitoring

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Simulation Model of the Hydraulic Drive of the Rotary Column of the Robot Manipulator 5

Simulation Model of the Hydraulic Drive of the Rotary Column...

引用

5th International Conference on control systems, Mathematical Modeling, automation and Energy Efficiency, SUMMA 2023

作者： Kolpashchikov, Sergey A Terekhin, Michail A Kozlov, Evgeny V Portnov, Artem A Kalugin, Dmitry S Surguchev, Ivan V Samara State Technical University Dept. Automation and Control in Technical Systems Samara Russia Samara State University of Railway Transport Higher School of Medical Engineering Dept. Digital Technologies Institute of Innovative Development FSBEI HE SamSMU MOH Russia Samara Russia State University of Railway Transport Dept. Digital Technologies Samara Samara Russia State University of Railway Transport Institute of Innovative Development FSBEI HE SamSMU MOH Russia Dept. Digital Technologies Samara Samara Russia

ISBN: (纸本)9798350309126

The purpose of the work is to develop a simulation model of the hydraulic drive of the rotary column of the robot manipulator, which provides an adequate similarity of the proposed model with a real object. Modeling of the system was carried out with the help of modern FluidSIM Hydraulics software, which allows to intuitively reproduce and evaluate the operation of the system without using special complex mathematical structures for describing the research model. The result modeling is the transient processes hydraulic motor rotation, position value hydraulic distributor, pressure values in hydraulic lines, pushbutton state. The obtained dependences of numerical values at various time intervals, presented in the corresponding section of this work, allow us to conclude that the developed model adequately describes the nature and behavior of the object under study, corresponding to the normal mode of operation of the hydraulic system. When changing the initial data of the simulation model, it is possible to achieve other operating modes, for example, emergency ones. The developed system rotates clockwise and counterclockwise, control is carried out using a relay-contactor system. The simulation of the system was carried out taking into account the compensation of hydraulic shocks in the hydraulic lines when changing the direction of rotation in the opposite direction. Based on the results obtained, it can be concluded that the efficiency of the hydraulic drive of the rotary column of the robot manipulator depends on several main factors, such as speed, load and pressure in the hydraulic lines. Changing these parameters can affect the system both positively, leading to an increase in the efficiency of the system as a whole, and negatively and lead to a decrease in positioning accuracy, an increase in the reaction time of the system and the efficiency of power transmission. The results obtained are of interest not only for engineers of hydraulic drive systems, but also

关键词： Machine tools

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Analysis of the PV Energy Potential in the Bulgarian Danube River Region between Ruse and Silistra

Analysis of the PV Energy Potential in the Bulgarian Danube ...

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Communications, Information, Electronic and Energy systems (CIEES), International Conference on

作者： Katerina Gabrovska-Evstatieva Ivaylo Stoyanov Tsvetelina Kaneva Nikolay Valov Vladimir Tsankov Boris Evstatiev Nicolay Mihailov Dept. of Computer Science University of Ruse Ruse Bulgaria Dept. of Electric Power Engineering University of Ruse Ruse Bulgaria Dept. of Computer Systems and Technologies University of Ruse Ruse Bulgaria Dept. of Automation and Electronics University of Ruse Ruse Bulgaria

ISBN: (数字)9798350352863

ISBN: (纸本)9798350352870

The goal of the study is to assess and compare the photovoltaic energy potential in the central-eastern part of the Bulgarian Danube region between the cities of Ruse and Silistra. To achieve this the solar radiation and the temperature of the environment should be obtained and analyzed. The goal of the study is to assess and compare the photovoltaic energy potential in the central-eastern part of the Bulgarian Danube region between the cities of Ruse and Silistra. To achieve this the solar radiation and the temperature of the environment should be obtained and analyzed. The goal of the study is to assess and compare the photovoltaic energy potential in the central-eastern part of the Bulgarian Danube region between the cities of Ruse and Silistra. To achieve this the solar radiation and the temperature of the environment should be obtained and analyzed.

关键词： Photovoltaic systems Electric potential Temperature distribution Renewable energy sources Urban areas Rivers Solar radiation Thermal pollution

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