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Synthesis of Tungsten Carbides Submicron Powders by High-Frequency Electrospark Treatment Method 11th

Synthesis of Tungsten Carbides Submicron Powders by High-Fre...

引用

11th International Conference on Nanotechnology and Nanomaterials, NANO 2023

作者： Vinnychenko, D.V. Nazarova, N.S. Adamchuk, Y.O. Vinnychenko, I.L. Vyshnevskyi, O.A. Department of Power Supply for Technological Systems Insitute of Electrodynamics of NAS of Ukraine Beresteisky Avenue 56 Kyiv03057 Ukraine Pulse Electrotechnical Systems Department Institute of Pulse Processes and Technologies of NAS of Ukraine Bogoyavlensky Avenue 43a Mykolaiv54018 Ukraine Department of Computerized Control Systems Аdmiral Makarov National University of Shipbuilding Heroiv Ukrainy Avenue 9 Mykoliv54007 Ukraine Department of Diamond M. P. Semenenko Institute of Geochemistry Mineralogy and Ore Formation of NAS of Ukraine Academician Palladin Avenue 34 Kyiv03142 Ukraine

ISBN: (纸本)9783031675263

A high-frequency electrospark treatment (HFEST) method for the synthesis of submicron tungsten carbide powder from tungsten granules in carbon-containing organic liquid has been developed. The developed pulse power supply provides the specified characteristics of discharge current in the range from 10 to 100 A and voltage in the range from 100 to 600 V. The specified productivity of up to 15 g/h is achieved by the high frequency up to 10 kHz of discharge pulses and voltage of 600 V. X-ray structural analysis of the obtained powder, which was executed on general purpose radiological diffractometer (GPRD-4-07) with the molybdenum cathode, showed fractions of tungsten and tungsten carbides. The image of the particles surface morphology of the obtained powder were executed with JSM-6700F scanning electron microscope confirms that the particles have the linear size from 40 to 200 nm. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Tungsten carbide

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Static Characteristics of Flyback Resonant Converter for Wireless Energy Transfer in Ship Degaussing systems

Static Characteristics of Flyback Resonant Converter for Wir...

引用

Smart Technologies in Power Engineering and Electronics (STEE), IEEE International Conference on

作者： Gennadiy Pavlov Iryna Vinnychenko Nazarova Natalia Andrii Obrubov Volodymyr Honcharenko Department of Computerized Control Systems Admiral Makarov National University of Shipbuilding Mykolaiv Ukraine Department of Pulse Elotechnic Systems Institute of Pulse Processes and Technologies of NAS of Ukraine Mykolaiv Ukraine Department of Ship Electric Power Systems Admiral Makarov National University of Shipbuilding Mykolaiv Ukraine

ISBN: (数字)9798331540999

ISBN: (纸本)9798331541002

The article is based on the previous authors’ research of electromagnetic processes in the flyback resonant converter for wireless energy transfer. According to the results of theoretical calculations, load and control characteristics of flyback resonant converter for wireless energy transfer in ship degaussing systems were obtained. To verify the theoretical results, the operation of a resonant flyback converter was simulated in LTSpice.

关键词： Wireless communication Power engineering Buck converters Energy exchange RLC circuits Resonant converters Transformers Voltage control Marine vehicles Electromagnetics

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Influence of Resonant Frequency on Power of the High-Voltage Transformer-Less Resonant Charger of Capacitive Energy Storage Device

Influence of Resonant Frequency on Power of the High-Voltage...

引用

Smart Technologies in Power Engineering and Electronics (STEE), IEEE International Conference on

作者： Dmytro Vinnychenko Natalia Nazarova Irina Vinnichenko Department of Technological Systems of Power Supply Institute of Electrodynamics of the National Academy of Sciences of Ukraine Kyiv Ukraine Department of Impulse Electrical Engineering Systems Institute of Pulse Processes and Technologies Mykolaiv Ukraine Department of Computerized Control Systems Admiral Makarov National University of Shipbuilding Mykolaiv Ukraine

ISBN: (数字)9798331540999

ISBN: (纸本)9798331541002

The dependences of the charging time of the capacitive energy storage device to the specified voltage and power of the inverter high-voltage transformer-less resonant charger of the capacitive energy storage on the resonant frequency were obtained. The obtained dependences made it possible to substantiate the frequency range for which the greatest power of the high-voltage resonant charger of the capacitive energy storage device at the constant charging current will be provided. Simulation of the charging process of capacitive energy storage with high-voltage transformer-less resonant charger was performed.

关键词： Performance evaluation Battery chargers Resonant frequency RLC circuits High-voltage techniques Voltage Transformers Capacitance Energy storage Resonant inverters

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PID controller Machine Learning Algorithm Applied to the Mathematical Model of Quadrotor Lateral Motion 6

PID Controller Machine Learning Algorithm Applied to the Mat...

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6th IEEE International Conference on Actual Problems of Unmanned Aerial Vehicles Development, APUAVD 2021

作者： Kucherov, Dmytro Kozub, Andrei Tkachenko, Valerii Rosinska, Galina Poshyvailo, Olexii Faculty of Cybersecurity Computer and Software Engineering National Aviation University Department of Computerized Control Systems Kyiv Ukraine National Space Facilities Control and Test Center State Space Agency of Ukraine Kyiv Ukraine

ISBN: (纸本)9781665438223

The paper discusses the problem of automatic tuning of the PID controller. The auto-tuning algorithm of the PID controller based on one machine learning method, which is equivalent to the steepest descent, is proposed. A feature of the proposed approach is the vector adjustment of the PID controller parameters, where the angular direction of descent is taken into account at first, and the step sizes are made if taking into account the increased accuracy of the approximation near the optimum point. Modeling performed in the Matlab environment confirms the effectiveness of the proposed approach. © 2021 IEEE.

关键词： Three term control systems

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Properties of Resonant Converter as controlled Object With Amplitude, Frequency and Pulse-Width Methods of Output Voltage Regulation

Properties of Resonant Converter as Controlled Object With A...

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Advanced Technology (KhPIWeek), IEEE KhPI Week on

作者： Gennadiy Pavlov Andrii Obrubov Iryna Vinnychenko Anatolii Kazariezov Department of Computerized Control Systems Admiral Makarov National University of Shipbuilding Mykolaiv Ukraine Department of Ship Electric Power Plants Admiral Makarov National University of Shipbuilding Mykolaiv Ukraine Department of mechanical engineering Admiral Makarov National University of Shipbuilding Mykolaiv Ukraine

On the basis of linearized mathematical models, an analysis of the dynamic and static properties of a two-bridge resonant converter with a series resonant circuit with amplitude, frequency, and pulse-width regulation ... 详细信息

ISBN: (数字)9798350384499

ISBN: (纸本)9798350384505

关键词： Pulse width modulation converters Resonant frequency RLC circuits Resonant converters Pulse width modulation Frequency conversion Regulation Voltage control Relays Frequency control

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Consensus Protocols for Improved Survivability in Autonomous Groups of UAV

Consensus Protocols for Improved Survivability in Autonomous...

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IEEE International Conference on Dependable systems, Services and Technologies (DESSERT)

作者： Dmytro Kucherov Tetiana Shmelova Serge Dolgikh Olexii Poshyvailo Ignat Miroshnichenko Serhii Shaptala Department of Computerized Control Systems National Aviation University “NAU” Kyiv Ukraine Department of Air Navigation Systems National Aviation University “NAU” Kyiv Ukraine Department of Artificial Intelligence Systems Solana Networks Ottawa Canada Faculty of Air Navigation Electronics and Telecommunications National Aviation University “NAU” Kyiv Ukraine

Autonomy in the operation of collectives of Unmanned Aerial Vehicles for the execution of complex applications and missions including monitoring, surveillance, delivery of essential and critical supplies, communications network operation and many others, can be desired for several essential reasons, including resource and cost efficiency, responsiveness to situations and events, reliability and other factors. In this work, we addressed the problem of ensuring reliable and seamless coordination in autonomous operation of a group of autonomous UAVs. Based on relevant examples, key requirements for the functions and protocols of exchanging information in an autonomous aerial group were discussed and formulated. The results can be instrumental in the design and development of practical autonomous unmanned aerial systems.

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Organization of a safe and efficient system of air transportation in and around an urban area using Unmanned Arial Vehicles

Organization of a safe and efficient system of air transport...

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IEEE International Conference on Dependable systems, Services and Technologies (DESSERT)

作者： Tetiana F. Shmelova Yury N. Kovalyov Dmytro P. Kucherov Victor D. Stovba Air Navigation Systems Department National Aviation University Kyiv Ukraine Environment Design Department Academy of Culture and Arts Management Kyiv Ukraine Department of Computerized Control Systems National Aviation University Kyiv Ukraine

ISBN: (纸本)9798350333053

The paper focuses on performing safe, coordinated, and effectively integrated flights in and around an urban area using Unmanned Arial Vehicles (UAV). The tasks are considered: the choice of territory for UAV flights; analysis, evaluation of terrain, and obstructions, drawing up a map indicating the risks of passing obstructions; GRID analysis of the selected fragment of territory; risk assessment according to the type of zone from “Restricted area” to “Dangerous area” obtained;finding the routes of the minimum risk and maximum safety using the method of dynamic programming. The algorithms by the UAV operators in an emergency and selecting optimal landing aerodrome/place/vertiport using decision-making methods in uncertainty are presented. Examples of finding safe routes for UAV flights are presented: monitoring and overflight of power lines, delivery of medical supplies, and decision-making models in emergencies: flights in bad weather conditions and loss of communication with UAV.

关键词： Uncertainty Atmospheric modeling Urban areas Decision making Organizations Autonomous aerial vehicles Safety

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Neurocontroller for vibrodrive control of adaptive vibration technological machines 2

Neurocontroller for vibrodrive control of adaptive vibration...

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2nd IEEE KhPI Week on Advanced Technology, KhPI Week 2021

作者： Chubyk, Roman Zelinsky, Igor Cherno, Oleksandr Lviv National Agrarian University Department of Information Systems and Technologies Lviv Ukraine Technologies Institute of Mechanical Engineering and Transport Lviv Polytechnic National University Department of Robotics and Integrated Mechanical Engineering Lviv Ukraine Admiral Makarov National University of Shipbuilding Department of Computerized Control Systems Mykolaiv Ukraine

A structure of the neurocontroller-based control system for the vibratory drive of adaptive vibration technological machines is proposed. It allows implementing a two-circuit system of neurocontrol of energy and techn... 详细信息

ISBN: (纸本)9781665412056

关键词： Model predictive control

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Model of Multiagent Cooperation for Behavioral Testing

Model of Multiagent Cooperation for Behavioral Testing

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2021 IEEE East-West Design and Test Symposium, EWDTS 2021

作者： Martynyuk, Oleksandr Drozd, Oleksandr Stepova, Hanna Thuong, Bui Van Martynyuk, Dmitry Sugak, Lyudmila Odessa National Polytechnic University Department of Computer Intelligent Systems and Networks Odessa Ukraine Odessa Polytechnic State University Department of Computerized Control Systems Odessa Ukraine Systems and Networks Odessa National Polytechnic University Department of Compuiter Intellectual Odessa Ukraine Join Venture 'NipponAuto' Odessa Ukraine Odessa Polytechnic State University Educational Methodical Department Odessa Ukraine

ISBN: (纸本)9781665445030

Modern distributed information systems (DIS), based on the complex application of many technologies, increasingly acquire the properties of multi-agent systems (MAS). Autonomy, mobility, cooperativity, intelligence, basic for MAS, become necessary properties of DIS. At the same time, the rapidly growing complexity, distribution and criticality of the use of DIS cause no less growth in the requirements for the reliability of their functioning, provided at the systemic, behavioral level by a complex of many approaches, both for project verification and for implementation testing. Most functional verification and testing problems have NP-complexity, which requires the integration of different verification tools and the use of various types of decomposition to achieve the desired result. The proposed model of MAS cooperation for testing is based on the representation of the behavior of DIS and MAS in their composition by extended Petri nets, automata behavioral experiments of check and recognition, functional hierarchical decomposition. The features of the model are the spatio-temporal decomposition of the set of events and actions of the goal and behavior of the MAS in the resource space of the DIS deployment environment, the spatio-temporal definition of the goals and behavior of all agents on the set of constrictions of events and actions of the MAS, the corresponding definition for agents of their autonomy, mobility, cooperativity and intelligence, the definition of cooperativity as a structure of agent coordination, the definition of the MAS model, reduced for events and actions outside the cooperativeness and coordination and commutation in its composition, the construction of a behavioral check model for the reduced MAS cooperation model. The proposed model is designed to reduce the computational complexity of behavioral check and recognition of cooperative interaction of the MAS and to determine the general algebraic conditions for constructing the corresponding

关键词： Multi agent systems

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GPS Usage Analysis for Angular Orientation Practical Tasks Solving 9

GPS Usage Analysis for Angular Orientation Practical Tasks S...

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9th IEEE International Conference on Problems of Infocommunications Science and Technology, PIC S and T 2022

作者： Dergachov, Kostiantyn Havrylenko, Olena Pavlikov, Vladimir Zhyla, Simeon Tserne, Eduard Volosyuk, Valerii Ruzhentsev, Nikolay Ostroumov, Ivan Averyanova, Yuliya Sushchenko, Olga Popov, Anatoly Shmatko, Oleksandr Solomentsev, Oleksandr Zaliskyi, Maksym Kuzmenko, Natalia Kuznetsov, Borys Nikitina, Tatiana National Aerospace University N.Ye. Zhukovsky "Kharkiv Aviation Institute" Aircraft Control Systems Department Kharkiv Ukraine National Aerospace University N.Ye. Zhukovsky "Kharkiv Aviation Institute" Department of Aerospace Radio-Electronic Systems Kharkiv Ukraine National Aviation University Air Navigation Systems Department Kyiv Ukraine Aerospace Control Systems Department National Aviation University Kyiv Ukraine National Aerospace University N.Ye. Zhukovsky "Kharkiv Aviation Institute" Department of Radio-Electronic and Biomedical Computerized Means and Technologies Kharkiv Ukraine National Aerospace University HE Zhukovsky "Kharkiv Aviation Institute" Laboratory of Electron Microscopy Optics Laser Technologies Kharkiv Ukraine National Aviation University Department of Telecommunication and Radioelectronic Systems Kyiv Ukraine St. Inst. "Inst. of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine" Magnetic Field Control Problems Department Kharkiv Ukraine Kharkiv National Automobile and Highway University Technical Disciplines Department Kharkiv Ukraine

ISBN: (纸本)9798350398915

New models of dual antenna Global Positioning System (GPS) receivers with improved characteristics have appeared recently on the world market. Thus the scope of problems which might be solved has been significantly expanded. The paper considers the possibility of using modern dual antenna receivers to solve some practical problems of angular orientation. An experimental study of dual antenna GPS receiver models using ALIGN © technology from NovAtel is being carried out. Effective methods for improving the accuracy of a dual antenna GPS receiver are proposed. The subject of the article is the study of the possibility of using dual-Antenna GPS systems for solving practical problems of navigation and steering. The study used the methods of experimental research, experiment planning, as well as statistical processing of the data. The results obtained make it possible to formulate practical recommendations on the use of dual-Antenna systems for solving specific problems of navigation and steering.

关键词： Global positioning system

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