Электротехника, электронная техника, информационные технологии список научных статей
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REDUCTION OF MAGNETIC FIELD LEVEL IN RESIDENTIAL OLD BUILDINGS FROM OVERHEAD POWER LINES BY MEANS OF ACTIVE SCREENING
Aim. Reduction of the magnetic field induction to the level of modern sanitary standards by means of active screening in residential old buildings which are located near existing typical overhead power lines are considered. Active shielding of the magnetic field inside a single-storey and...
2021 / Kuznetsov B.I., Bovdui I.V., Nikitina T.B., Kolomiets V.V., Kobylianskiy B.B. -
ENERGY EFFICIENCY OF A 3-LEVEL SHUNT ACTIVE POWER FILTER POWERED BY A FUEL-CELL/ BATTERY DC BUS WITH REGULATED DUTY CYCLES
Introduction. Nowadays, electrical energy is indispensable in industrial, tertiary and domestic appliances. However, its efficiency is becoming affected by the presence of the disturbances that appear in the electrical networks such as harmonics, unbalance, sags/swells, flickers …etc. Indeed, the...
2021 / Bourouis B., Djeghloud H., Benalla H. -
ANALYSIS OF DISTRIBUTION LAWS OF TRANSFORMER OIL INDICATORS IN 110-330 KV TRANSFORMERS
Introduction. Ensuring the operational reliability of power transformers is an urgent task for the power industry in Ukraine and for most foreign countries. One of the ways to solve this problem is the correction of maximum permissible values of insulation parameters. However, such a correction is...
2021 / Shutenko O., Ponomarenko S. -
ADAPTIVE MAXIMUM POWER POINT TRACKING USING NEURAL NETWORKS FOR A PHOTOVOLTAIC SYSTEMS ACCORDING GRID
Introduction. This article deals with the optimization of the energy conversion of a grid-connected photovoltaic system. The novelty is to develop an intelligent maximum power point tracking technique using artificial neural network algorithms. Purpose. Intelligent maximum power point tracking...
2021 / Sahraoui H., Mellah H., Drid S., Chrifi-Alaoui L. -
METHOD OF INTEGRO-DIFFERENTIAL EQUATIONS FOR INTERPRETING THE RESULTS OF VERTICAL ELECTRICAL SOUNDING OF THE SOIL
The paper is devoted to the problem of determining the geoelectric structure of the soil within the procedure of testing the grounding arrangements of existing power plants and substations to the required depth in conditions of dense development. To solve the problem, it was proposed to use the...
2021 / Koliushko D.G., Rudenko S.S., Saliba A.N. -
FEATURES OF EXCITATION OF A LINEAR ELECTROMECHANICAL CONVERTER OF INDUCTION TYPE FROM AN AC SOURCE
Purpose. The purpose of the article is to establish the basic laws of operation of induction-type linear electromechanical converter (LEMС) during operation in high-speed and shock-power modes and excitation from an AC source of increased frequency. Methodology. With the help of a mathematical...
2021 / Bolyukh V.F., Kashansky Y.V., Schukin I.S. -
REPRODUCING OF THE HUMIDITY CURVE OF POWER TRANSFORMERS OIL USING ADAPTIVE NEURO-FUZZY SYSTEMS
Introduction. One of the parameters that determine the state of the insulation of power transformers is the degree of moisture content of cellulose insulation and transformer oil. Modern systems of continuous monitoring of transformer equipment have the ability to accumulate data that can be used...
2021 / Vasilevskij V.V., Poliakov M.O. -
ANALYSIS OF THE PAYBACK PERIOD OF A MODERNIZED PUMP UNIT WITH INDUCTION ELECTRIC MOTORS OF ADVANCED ENERGY EFFICIENCY CLASSES
Aim. The comparative analysis of energy consumption, electricity costs during lifetime cycle and payback period of a pump unit with 90 kW 2-pole induction motors, belonging to various energy efficiency classes, feeding directly from power grid. Methods. The examined operating modes aligned with a...
2021 / Goman V.V., Valeev E.A., Prakht V.A., Kazakbaev V.M., Dmitrievskii V.A., Paramonov A.S. -
ON THE SOLUTION OF THE PROBLEM OF SYNTHESIS OF THE CONTROL SYSTEM FOR THE PROCESS OF DOSED FEED OF ELECTRODE WIRE FOR ARC WELDING EQUIPMENT
Goal. Refinement of the methodology for the development of an effective control system for an electric drive with controlled relaytype regulators for organizing a metered feed of an electrode wire using the parameters of the arc process with the possibility of using it in design practice and...
2021 / Lebedev V.A. -
NUMERICAL SIMULATION OF GAP LENGTH INFLUENCE ON ENERGY DEPOSITION IN SPARK DISCHARGE
The aim of the work is to study the influence of the length of the spark gap on energy input into the discharge channel during its gas-dynamic expansion. Methodology. The research is carried out by numerical modeling of the process of spark discharge development at variable values of the discharge...
2021 / Korytchenko K.V., Varshamova I.S., Shypul O.V., Samoilenko D., Lisniak A., Harbuz S.V., Ostapov K.M. -
SYNTHESIS OF CONSTRUCTIVE-TECHNOLOGICAL DECISIONS OF REGULATION OF WORKING CAPACITANCE OF CABLES OF INDUSTRIAL NETWORKS
Introduction. Over the past 10 years, the number of industrial networks has more than doubled. At the physical level, all industrial technology networks are based on twisted pair. Purpose. Synthesis of constructive-technological decisions of regulation of electric capacitance of the insulated...
2021 / Bezprozvannych G.V., Kostiukov I.A., Pushkar O.A. -
ESTIMATION OF THE MAIN DIMENSIONS OF THE TRACTION PERMANENT MAGNET-ASSISTED SYNCHRONOUS RELUCTANCE MOTOR
Goal. The goal of the research is to develop an algorithm for selecting the main dimensions of a traction permanent magnet-assisted synchronous reluctance motor. Methodology. A method for determining the main dimensions of the motor, which combines the analytical selection of stator parameters and...
2021 / Liubarskyi B.G., Overianova L.V., Riabov I.S., Iakunin D.I., Ostroverkh O.O., Voronin Y.V. -
MATHEMATICAL MODELLING OF STARTING MODES OF INDUCTION MOTORS WITH SQUIRREL-CAGE ROTOR
Purpose. Development of methods and algorithms for calculation of starting modes of the induction motors with the squirrel-cage rotor. Methodology. Mathematical modelling of starting modes of asynchronous electric drives in various coordinate systems with the use of numerical methods for solving...
2021 / Malyar V.S., Hamola O.Y., Maday V.S., Vasylchyshyn I.I. -
MATHEMATICAL MODELLING OF TRANSIENTS IN THE ELECTRIC DRIVE OF THE TURNOUT OF THE MONO-SLEEPER TYPE WITH SWITCHED-INDUCTOR MOTOR
Introduction. The study is devoted to the development of the functionality of a railway track switch by introducing a switchedinductor electric drive. This solution justifies simplifying the mechanical part of the switches by changing the gearbox to a ballscrew and locating the all kinematic line...
2021 / Buriakovskyi S.G., Maslii A.S., Asmolova L.V., Goncharuk N.T. -
OVERHEAD POWER LINES MAGNETIC FIELD REDUCING IN MULTI-STORY BUILDING BY ACTIVE SHIELDING MEANS
Aim. Reducing of magnetic flux density of magnetic field in multi-storey building, generated by overhead power lines to the sanitary standards level by active shielding means. The tasks of the work are the synthesis, Computer simulation and experimental research of three-circuits system of active...
2021 / Kuznetsov B.I., Bovdui I.V., Nikitina T.B., Kolomiets V.V., Kobylianskiy B.B. -
THE EFFICIENCY OF THE ACTIVE CONTROLLED RECTIFIER OPERATION IN THE MAINS VOLTAGE DISTORTION MODE
Goal. Checking the efficiency of the active rectifier with differences types of control systems in conditions of deep voltage distortions of a three-phase three-wire supply network. Methodology. The authors have used the Matlab/Simulink software environment to create a model of an active rectifier...
2021 / Krylov D.S., Kholod O.I. -
MANAGEMENT OF POWER CONSUMPTION IN A PHOTOVOLTAIC SYSTEM WITH A STORAGE BATTERY CONNECTED TO THE NETWORK WITH MULTI-ZONE ELECTRICITY PRICING TO SUPPLY THE LOCAL FACILITY OWN NEEDS
Purpose. Improving the principles of management of photovoltaic system with storage battery and with autonomous functioning during daylight hours for a local object, connected to the grid with multi-zone payment when excluding the generation of energy into the grid. Methodology. Modeling and...
2021 / Shavelkin A.A., Shvedchykova І.О., Kruhliak H.V., Gerlici J., Kravchenko K. -
PENETRATION OF NON-UNIFORM ELECTROMAGNETIC FIELD INTO CONDUCTING BODY
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...
2021 / Vasetsky Y.M. -
OPTIMIZATION AND RELIABILITY OF THE POWER SUPPLY SYSTEMS OF A COMPRESSOR STATION
As gas pipeline systems become larger and more complex, the importance of optimally operating and planning these facilities has increased. The capital costs and operating expenses of pipeline systems are so large that even small improvements in the use of the system can involve large sums of money. ...
2021 / Benchouia N.E., Saaidia M. -
INFLUENCE OF THE SHAPE OF THE INPUT PULSES ON THE CHARACTERISTICS OF HYBRID ELECTROMAGNETIC SYSTEM WITH MAGNETIC FLUX MODULATION
Introduction. Nowadays, the accelerated development of materials and technologies and the finding of new ones is a prerequisite for the improvement of well-known electromagnetic constructions used in various devices, as well as for the development of new ones. New construction of hybrid...
2021 / Yatchev I., Balabozov I., Hinov K., Gueorgiev V., Hadzhiev I.