name
Kvitko Andrey Viktorovich
Scholastic degree
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Academic rank
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Honorary rank
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Organization, job position
• Kuban State Agrarian University
старший преподаватель
Research interests
Web site url
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Current rating (overall rating of articles)
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TOP5 co-authors
Articles count: 13
Сформировать список работ, опубликованных в Научном журнале КубГАУ
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THE CHOICE OF THE GENERATOR AND ELECTRICITY STABILIZATION FOR SMALL HYDROPOWER PLANTS
DescriptionThe article analyzes the main characteristics of the electricity generators to use them as a part of small hydroelectric power plants. It is shown, that contactless asynchronous generators in comparison with synchronous generators and DC generators have improved their operational and technical characteristics, and above all, their reliability and performance efficiency. We have shown graphic dependences of the cost and the weight of power generators. It is proposed using direct frequency converter as a stabilizer of parameters of asynchronous generator of electricity, used as a source of electricity for small hydropower plants. The article explains the features of the work and the choice of parameters for generators, working together with the direct frequency converters. The authors have revealed some aspects of the work of direct frequency converters with natural commutation and with adjustable phase angle, including their advantages and disadvantages. The article also presents block diagrams for small hydroelectric power plants, made with the help of asynchronous generators and direct frequency converters
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FEATURES OF CALCULATION OF THE NONCONTACT ELECTRIC POWER GENERATORS
DescriptionThe article shows that to improve the performance of autonomous systems we need new methods and principles of their design, associated with both the use of renewable sources and the application of new technical solutions of electromechanical generators and static stabilizers and inverters electric power settings. We have disclosed modern requirements for generators of electric power, as well as features of calculating the parameters of contactless electrical power generators: asynchronous generators capacitive excitation and asynchronous generators with permanent magnets. The article presents some analytical expressions for calculating the electrical losses and the efficiency of the generators, specific weight and power. It is shown, that expedient to designing contactless electrical power generators to carry out as part of the autonomous electricity supply systems, as it is sometimes advantageous to understate the main criteria of efficiency of generators, in order to improve, for example, weight and overall dimensions of static converters. The conclusion is made that in order to improve the efficiency of designing contactless electrical power generators in the early stages of designing it is necessary to carry out a preliminary assessment of the main criteria of efficiency of contactless electrical machines. We have also discussed analytical expressions, which might be used for preliminary evaluation of application features for various types of contactless generators in the stand-alone electricity supply systems taking into account the conditions of use
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PERSPECTIVES AND FEATURES OF OPERATION OF SOLAR PV PLANTS
DescriptionCurrently one of the promising areas to significantly improve efficiency of energy saving is the introduction of renewable sources of energy into the energy system. In the field of solar energy, we consider solar photovoltaic power plants with direct conversion of solar radiation into electricity using solar panels as the most promising ones. The article examines the main factors that reveal the prospects of applying solar photovoltaic power plants. It also discusses the main advantages and disadvantages in comparison with traditional and other renewable energy sources. To improve the operational and technical characteristics of solar power plants in their structure significantly, it is proposed to use new components. Stand-alone inverters for single-phase transformers with rotating magnetic field will reduce the number of power electronic devices in the conversion circuit; they will simplify the system of control and protection, reduce electromagnetic interference and improve overall efficiency and reliability of the converter of the solar power plant. In addition, the modular design of solar power plants will also increase the reliability of the power system due to redundancy of the major functional elements. It is also important that the construction of solar power plants in a modular way enhances maintainability of the system, it significantly reduces the time for maintenance and troubleshooting in emergencies; it simplifies the task of changing its structure depending on requirements of users. The article reveals peculiarities of work and the main benefits from the application of solar photovoltaic power plants