Artur Zaporozhets

General Energy Institute of NAS of Ukraine

This chapter presents a mathematical model for forecasting the consumption of petroleum products using a complex two-stage method. The proposed mathematical model allows forecasting the national consumption of petroleum products in general (TOP-level) and by types of economic activity (DOWN- level) for its transportation and conversion into electri...

The chapter focuses on finding the geometric configuration of iron-free electromagnetic field inductors in the form of current contours intended for heat treatment of metal strips, the induction heating of which is carried out when they move in transverse high-frequency field. Inverse field theory problems are solved using approximate methods in a...

The chapter discusses electromagnetic systems for thermal treatment of metal strips using the induction heating by eddy currents. A mathematical model of the heating device is used for analysis, which includes an inductor to generate an alternating magnetic field and the metal strip moving in this field. Flat-shaped inductors without magnetic cores...

The chapter deals with mathematical models for studying the electromagnetic interaction of field sources with a conducting body. In the general case, the presented exact analytical solution of the field conjugation problem on a flat interface between media can be used as a mathematical model for finding the electromagnetic field. The solution has n...

The research in this chapter is dedicated to issues related to the use of single-phase transverse magnetic field inductors in induction heating devices for thin moving metal strips. The used mathematical models in the research of the three-dimensional electromagnetic field of the induction system allow to apply analytical calculation methods. There...

This chapter analyzes the prospects for global development of energy storage systems (ESS). The global experience in the application of various technologies of energy storage is considered. The state of global energy storage, its grow’s potential, and Ukraine’s share in the total statistics are examined. Statistical data on the quantity of global e...

The chapter provides materials for the implementation of such problem as creating information support for monitoring the current state of electric power facilities (EPF) as a task of identifying the state of the facility based on the study of vibronoise signals generated by it. The proposed system of statements of the formation of vibronoise signal...

The quality of living space largely depends on the quality of indoor air. The physical and chemical properties of the air people breathe can affect their health and comfort. Indoor air pollution in residential and workplace environments can occur due to various activities of occupants or employees, such as cooking, smoking, and using electronic dev...

The issues of the prospects for the development of method for determining the presence of corona discharge by spectral acoustic functions were considered. Since the method uses the spectral Fourier transform, which led to errors in the calculations, the literary sources devoted to the disadvantages of the Fourier transform method were analyzed. For...

The issues of developing a method for determining the coordinates of a corona discharge from its acoustic radiation are considered. Theoretical foundations for constructing a three-dimensional acoustic wave pressure field are presented. For constructing a three-dimensional acoustic field, the parameters of a corona discharge as a sound source are d...

To create diagnostic devices for finding the coordinates of the corona discharge, methods for searching for the coordinates of the corona discharge with a stationary scanning device and a mobile scanning device are proposed. A UAV has been proposed as a mobile platform for the scanning system. The effect of noise is taken into account in developed...

The chapter considers corona discharge as one of the factors of changes in electric power supply quality parameters. It is shown that corona discharge results not only in non-short losses of electric energy but it interferes with the transmission of high-frequency signals, disturbs isolation elements, can become a source of conditions for arcing di...

It is suggested to use the method of acoustic noise generation by corona discharge to search for the presence of corona discharge. It is shown the physical processes of acoustic noise occurrence from the corona discharge—ionic current and the current displacement in the outer zone of the corona discharge. The experimental study of corona discharge...

Chapter deals with the issues related to the detection of corona discharge on the elements of the power supply system. The methods of corona discharge detection by different types of medium stirring are investigated: by ultraviolet radiation, by infra black sea radiation, by the present electromagnetic background, by the presence of a chemical comp...

The chapter discusses the mathematical model of the spectrum-acoustic dependencies of corona discharge. The model was created using the inverse Fourier transform applied to the results of experimental data processing. The application of this mathematical model allowed the development of a method for detecting the presence of corona discharge based...

In the chapter the mathematical model of spectroacoustic dependence of the corona discharge was described. To solve the task of creating the model, the acoustic spectrum was decomposed by Fourier transform. The results of the decomposition are described, the regularities in the spectrum of acoustic radiation by corona discharge are found and spectr...

A brief history of approaches to the quality of electricity supply is given. The main parameters of electric power supply quality, which were grouped according to various factors, are shown. Attention was drawn to the fact that the quality of electrical energy can be considered as one of the elements of quality indicators of electricity supply. The...

A brief history of approaches to the quality of electricity supply is given. The main parameters of electric power supply quality, which were grouped according to various factors, are shown. Attention was drawn to the fact that the quality of electrical energy can be considered as one of the elements of quality indicators of electricity supply. The...

The features of the organization of ensuring the validity in testing laboratories are investigated. Measures to ensure the validity of the results depending on modern quality concepts are analyzed. The author shows the necessity of building a systematic model of ensuring the validity to achieve a balance between the customer's expectations regardin...

Products made of composite materials, unlike products made of metals, are formed from primary raw materials simultaneously with the formation of the materials themselves. In this case, the process of diagnosing of these materials is characterized by a large influence of random factors caused by changes in the properties of composites that arise as...

The series Contributions to Political Science contains publications in all areas of political science, such as public policy and administration, political economy, comparative politics, European politics and European integration, electoral systems and voting behavior, international relations and others. Publications are primarily monographs and mul...

Peculiarities of the value-world archetypes formation of Ukrainian society and dynamics of political process in Ukraine are considered through the prism of the civilizational theory of A. Toynbee and S. Huntington. Mental and value guidelines of citizens and social groups became the main object of information wars. So, cultural and linguistic value...

This volume presents the key informational, communication, and socio-political drivers of the Ukrainian state's national security. Since the beginning of the third millennium, there has been an aggravation of global inter-civilizational confrontations, which in 2022 has already resulted in an open military aggression against Ukraine. The hybrid war...

The power sector plays a critical role in the functioning of the economy and the security of a country, being closely interconnected with other vital infrastructures, such as gas supply, water supply, transportation, and telecommunications. Ensuring a stable power supply is crucial for the uninterrupted operation of these systems. One way to enhanc...

In the chapter, the studies are aimed at the exact analytical solution of a three-dimensional quasi-stationary problem, which is formulated in a fairly general setting. It is necessary to find the electromagnetic field of an arbitrary spatial contour with an alternating current, located above a conductive magnetizable half-space, in which eddy curr...

Approximate mathematical models for calculating three-dimensional electromagnetic fields are developed and analyzed on the basis of the exact analytical solution found for the problem of determining the three-dimensional quasi-stationary field of arbitrary external sources near conducting half-space. From the standpoint of the general electromagnet...

The study is based on the exact analytical solution for the general conjugation problem of three-dimensional quasi-stationary field at a flat interface between dielectric and conducting media. It is determined that non-uniform electromagnetic field always decreases in depth faster than uniform field. The theoretical conclusion is confirmed by compa...

In this chapter the study of pulsed three-dimensional electromagnetic fields is based on the obtained accurate analytical solution to the problem of the field of arbitrary alternating initial sources near conducting half-space with account to eddy current in conducting body. For the pulse current, the obtained solution is a frequency spectrum of th...

The book is devoted to the solution of one general problem of the theory of a three-dimensional quasi-stationary sinusoidal and pulse electromagnetic field. These studies, unlike many well-known works, are based on obtained exact analytical solution of the problem for the field, generated by external current sources near the conducting body with pl...

In this chapter, a methodology for air pollution monitoring using spatially branched wireless sensor networks is formed, based on 3 directions of scientific and practical foundations: theoretical, methodological, and hardware/software. As an element of an integrated control system for complex technical objects, a hierarchical structure of the air p...

A formulation of the problem of finding the optimal algorithm for power system control, taking into account the randomness of external influences and forecasting errors, proposed in the framework of the stochastic control theory with adaptation. This made it possible to obtain an optimization procedure in the form of a sequential process with a fin...

This chapter deals with the actual scientific and applied task of identifying the state of operating electric power objects, which have worked out more than 80% of their regulatory resource to date. Proposed information support for such identification based on the use of the information resource of the noise signal, which is formed during the opera...

The book consists of 8 parts: Energy Informatics, Electric Power Engineering, Heat Power Engineering, Nuclear Power Engineering, Renewable Power Engineering, Fuels, Transport, and Environmental Safety. The results presented in this book are aimed at solving some of the technical issues proposed by the Ukraine Recovery Plan and other important scien...

An improved model of mathematical programming is proposed for the study of directions and optimal parameters of the technological renewal of energy system elements operating in energy associations, for the distant perspective and taking into account the perspectives of these elements. The model is a combination and, at the same time, a separate cas...

The main task of mathematical and computer modeling is detailed analysis of the studied object and/or processes in various conditions and environments using modern supercomputers. Modern problems of science and technology require significant computing resources, as well as the development of appropriate software, which can be used to simplify and e...

In district heating systems, a significant share of heat loss (according to some data up to 20 … 30%) is accounted for by heating networks. Since the repair and relocation of heating networks is very expensive, determining the need and priority of such work is of paramount importance. A reliable quotative criterion for the condition of the heating...

Cyclic signals are an important source of information about the processes and phenomena occurring in the surrounding world and technical systems. This chapter considers the methodology for measuring and analyzing the characteristics of cyclic signals based on the discrete Hilbert transform (DHT). Peculiarities of DHT application in the problems of...

The chapter is devoted to the use of the latest Big Data technologies in the study of production processes for energy facilities. The review of publications of Ukrainian and foreign scientists was carried out, the forecasts of leading IT companies on the relevance of the use and practical significance of the latest Big Data technologies were consid...

This chapter is devoted to possibilities of using unmanned aerial vehicles for high-voltage power lines monitoring. Traditionally, unmanned aerial vehicles in power industry are used to monitor extended objects. And mostly, such monitoring is associated with optical devices (photo and video), which ensures the fulfillment of the requirement of a su...

Operational control over materials for different technical purposes according to their technological parameters, which include the basis weight of different fabrics, the linear density of textile tapes and the parameters that directly affect the quality of the finished product, can be conducted using pulse ultrasonic radiation. This is appropriate...

To confirm the proposed provisions relating to the research and application of non-contact ultrasonic control over technological parameters of textile materials, experimental samples of computerized systems for scanning fabrics have been created. Implemented samples of systems made it possible to experimentally determine the parameters of porosity,...

To maintain the growth in demand for light industry products, the manufacturer should constantly expand its range and strive to improve quality. Today, most of the methods for measuring and diagnosing the quality of textiles are outdated. To increase the efficiency of the production of textile materials, modern control methods should be applied, th...

Today, there are many different technological objects that can be based on different materials. One of such materials is composites. The main parameters of these materials include their thickness provided that there are no defects in their structure. In turn, defects can lead to varying degrees of the material destruction. Such defects in parts, un...

The amount of use of radioactive materials permanently increases and, together with this, it is grows the danger related to the uncontrolled action of ionizing radiation on environment. Nuclear weapon application and accidents at nuclear power plants (NPPs) have shown the scope of dangers we can encounter. In particular, it should be mentioned the...

In the modern development of science and technology and the application of new methods to increase the qualitative characteristics of various textile materials, it is necessary to provide continuous operative control of their technological parameters. Adhering to these parameters within the required limits with a definite acceptable tolerance will...

Based on the research, in order to control the technological parameters of textile materials in modern conditions, it is advisable to use contactless methods of obtaining measurement information about these parameters in combination with modern computerized systems. To be able to ensure the proper quality of textile fabrics, it is recommended to co...

A method and mathematical models of direct and inverse problems of ultrasonic testing and diagnostics of complex metal structures for defects were developed and tested. A prototype of a system for magnetostrictive control of elements of the objects under study was manufactured and experimentally tested. Mathematical simulation of ultrasonic testing...

Objective information about the state of air pollution is the basis for implementing measures to ensure conditions for the safe living of the population and improve the environmental pollution monitoring network. The purpose of the work is to study the impact of energy facilities (enterprises consuming different types of fuels) on atmospheric air p...

The task of identifying stochastic noise signals as an information resource for research objects is an urgent task, confirmed by a significant number of publications. A formalized hierarchy of mathematical models of such signals from a vector space-time random field to a random variable is proposed, probabilistic and physical measures are indicated...

The result of the work is obtaining difference schemes for dynamic systems, which are described by systems of ordinary differential equations of the second order based on the classical methods of Bossak, Newmark and the generalized α-method. For the developed modifications of the methods, the corresponding software was developed in the MATLAB syste...

The lightning protection system can become a factor in super-powerful electric fields, which is very dangerous for technical means that are located in such field, as example, unmanned aerial vehicles. But it is difficult to predict the cases when lightning strikes the current-carrying parts of electrical equipment. Therefore, it is necessary to hav...

Wireless Touch Networks (WTN) have become increasingly important with the emergence of the Internet of Things (IoT) and are regarded as a class of self-organizing networks. This article presents an overview of the construction principles, routing protocols, quality of service parameters, traffic models, and characteristics of WTN. The article also...

The successful supply of an economy with coal fuel, for a country that carries out its large-scale extraction and import, is a complex production and logistics problem. Violations of the usual supply scheme in conditions of crises in the energy markets, international conflicts, etc., lead to the problem of simultaneous restructuring of the entire s...

Deterministic and probabilistic models of measured quantities, processes and fields in control systems of manufacturing processes, as well as physical and probabilistic measures, make it possible to form a measurement result, to provide it with the properties of objectivity and reliability. The measuring instruments necessary for obtaining new know...

An increase in the share of renewables in heat supply systems is a promising direction to reach sustainable development goals and decarbonization. Decision makers should consider various factors, including energy market prices, the availability of biofuels, boiler and auxiliary equipment costs, logistic costs, and the taxation system. In the Europe...

Currently, the state system for monitoring atmospheric air pollution in Ukraine is obsolete both in terms of technical and methodological support. In Ukraine, air pollution measurement standards have not been updated for more than 30 years, which led to gradual degradation of the monitoring system. Although relatively new technical means for measur...

Information-measuring technologies (IMT) are an important instrument for solving problems of energy informatics. They allow to form primary information based on the interaction of energy facilities with IMT sensors that form information signals. In many practical applications, the constructive model of information signals is the model of narrowband...

Small-aperture transducers based on the magnetostrictive effect for the emission and reception of signals in the ultrasonic range in solid materials have been developed. The article discusses their design features and specifications. Attention is paid to the features of the choice of materials, shapes, and geometrical dimensions of the excitation c...

One of the main elements of the power system is the extra high voltage transmission lines, which are system-forming for the bulk electric networks. The normal operation of the integrated power system depends on the reliability and efficiency of operation transmission line. To ensure efficient operation of the extra high voltage transmission line, i...

A modern approach to improving energy efficiency and reducing heat losses in the building, heat energy, agricultural and other fields involves the use of modern materials with high heat-insulating characteristics. The main indicators of the quality of heat-insulating materials and products are thermal conductivity and the associated thermal resista...

Experimental methods for studying thermophysical processes and their systems are the most reliable source of information about the thermal state of an object. The theory and practice of solving inverse problems acquire special significance in our time, when, due to the current circumstances, energy facilities, industry, transport, economy, communic...

The chapter is devoted to the problem of accident-free operation of the shell elements of power facilities, from the point of view of existing mathematical approaches to diagnostics of their technical condition. A review of literary sources on the subject of the chapter is carried out, which shows that cylindrical structures are one of the most com...

The efficiency of the functioning of boiler units depends on the availability of reliable information on the progress of technological processes. The lack of control and measuring systems for the composition of the exhaust gases leads to low efficiency of the boiler unit, in particular, due to poor-quality fuel combustion. Therefore, in modern oper...

The system of statements for defining the problems of using the resources of information and measurement technologies (IMT) for solving the problems of energy informatics in a broad and narrow sense is given. Potential possibilities of using IMT resources are considered, which include: methods of mathematical, computer and physical modeling; method...

This book describes new energy saving methods and technologies for heat power engineering. The book is devoted to topical issues of energy and related industries. Leading Ukrainian scientists from both scientific institutes and educational universities took part in its creation. The research results are presented in 6 parts: electrical engineering,...

Photovoltaic technologies directly convert sunlight into electricity and are one of the most common renewable energy sources. Solar power is the most efficient and economical way to generate electricity. To continue to reduce the cost of this technology and increase profits, the solar industry is constantly looking for ways to maximize efficiency a...

This book focuses on modern technologies and systems for solving problems in the energy sector. It is shown that bioenergy is one of the promising areas of energy development. The book collected the experience of scientists from many countries in the research of renewable energy. The advantages of renewable energy are general availability, renewabi...

В монографії розглянуто уніфікований підхід до вирішення проблеми створення ринкових важелів забезпечення ефективної взаємодії постачальника і споживача в електро-енергетичних системах, що дозволяє оцінити вплив сукупності енергетичних процесів, які спостерігаються в точці приєднання, на якість та величину втрат електричної енергії. Монографія приз...

В монографії розглянуто основні параметри якості електропостачання і вплив на ці параметри коронного розряду, описано метод пошуку наявності коронного розряду спектроакустичним методом, описана методика визначення координат коронного розряду за акустичним випроміненням для стаціонарних приладів і приладів на пересувних платформах. Показані переваги...

This book examines the problems of power systems in fields related to optimization of operating modes of electric power facilities and their control systems, information and measuring systems and metrological support in the electric power industry, ensuring the functioning of the electric power system in the conditions of a competitive market of th...

In modern conditions for complex thermal power facilities, the issue of developing methods for predicting equipment failures is especially relevant. Methods based on the intellectualization of diagnostic systems and allowing to obtain predictive models based on the use of both current data received in real time from measuring equipment and retrospe...

In Ukraine today there are more than 6000 boiler plants with a heating capacity of up to 1 Gcal/h with an efficiency of about 70 %, requiring replacement or modernization, 40 % of boilers are operated with an efficiency of less than 82 %, about 11000 boilers with a capacity of 100 kW to 1 MW have been in operation for over 20 years. Although the pa...

The article describes the approach to the formation of a simulation model of information signals, which are typical for objects with different types of defects. The dispersive analysis of the signal spectrum components in the bases of the discrete Hartley transform and the discrete cosine transform is carried out. The analysis of the form of the re...

Дана робота присвячена проблемі впливу місць зберігання золошлакових відходів підприємств паливно-енергетичного комплексу на навколишнє природне середовище. Зберігання золошлаку супроводжується низкою вкрай негативних наслідків для довкілля та здоров'я людини. Зокрема в суху погоду в результаті впливу вітру відбувається сильне пиління золошлаковідв...

Дана робота присвячена проблемі впливу місць зберігання золошлакових відходів підприємств паливно-енергетичного комплексу на навколишнє природне середовище. Зберігання золошлаку супроводжується низкою вкрай негативних наслідків для довкілля та здоров'я людини. Зокрема в суху погоду в результаті впливу вітру відбувається сильне пиління золошлаковідв...

This chapter is devoted to the application of virtual measures in methods of standardless diagnostics of composites, which allows to simulate various types of defects or damage levels of a product without the use of physical standards, which reduces the time, technical and economic costs associated with the manufacture of reference samples. A metho...

Monitoring of air pollution using unnamed aerial systems (UAS)s is considered. The specifics and content of the information support of the measuring system using UASs are described. The mathematical model of the local atmospheric pollution field in the form of a random field is substantiated. A model of the Wiener field is considered, which describ...

The features of monitoring atmospheric air pollution are considered and a promising direction for the development of an extensive network of monitoring systems is proposed. The results of the analysis of the composition and type of pollutants during the operation of thermal power plants (TPPs) and technologically hazardous enterprises of various in...

The models and measures for measuring random angular quantities (plane angles and phase shifts of cyclic signals) are considered, the basic concepts, terms, definitions and characteristics that are used in the statistical analysis of angular data are given. The definitions and characteristics of the integral probability distribution function (PDF)...

Examples of building models and measures in monitoring and diagnostics of electric power objects are given. It is known that accuracy and reliability of results of diagnostics of technical objects depends on many factors. And, not in the last place, from qualitatively formed training sets which on different parameters and characteristics correspond...

Examples of using the developed models and measures on the circle for the study of cyclic signals in various subject areas are given. The object of study is the phase shift between cyclic signals. The limiting case of cyclic signals are periodic signals, in particular harmonious signals. The solutions to the problems of precision ultrasonic echo-pu...

The general problems of measurements and monitoring are considered, including the issues of displaying the dynamics of a physical quantity in space and time, the stability of unit’s measures of a physical quantity, spatial coordinates and time, data protection and measurement results. The system of postulates on which the theory of measurements is...

The methodological aspects of the analysis of multidimensional signals and fields are highlighted. Mathematical models of measuring signals and fields are systematized, the main spatio-temporal models of quasi-determined signals are considered—continuous and discrete, complex-valued, periodic. Some facts of the theory of orthogonal signals and orth...