name
Otmakhov Georgiy Sergeevich
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
Research interests
Web site url
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Current rating (overall rating of articles)
0
TOP5 co-authors
Articles count: 8
Сформировать список работ, опубликованных в Научном журнале КубГАУ
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AUTONOMOUS WIND POWER INSTALLATIONS AND SYSTEMS
Description
The article shows the main advantages and disadvantages of renewable energy sources. It is shown, that in general, the use of renewable energy in the world has acquired real momentum and stable growth trend. An interesting fact is that the greatest application was currently the most mutable and unstable form of energy - wind. The total global installed capacity of large wind turbines, according to various estimates, is approximately 20 GW. This is because the specific investment in wind power is lower than with most other forms of renewable energy. The article presents features of the design and operation of modern wind power stations. It is shown that when choosing wind power plants and stations we must take into account the following main parameters and factors: the average value of amount of electricity consumed by power consumers on a monthly basis; power generator; uptime in the absence wind or when weak wind. The study shows block-circuit solutions of different options of energy systems made using wind power plants. We have also disclosed prospects of development wind energy and considered the advantages and the features of the choice of the main functional units of wind power stations which will increase the effectiveness of predesign work on the creation of high-performance systems of electrosupply with combined power supply systems based on renewable energy sources
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THE RECTIFIER ON TRANSFORMERS WITH ROTATING MAGNETIC FIELD
Description
The article discusses the new structural schematics DC voltage sources with improved performance, performed on transformers with a rotating magnetic field
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DC VOLTAGE SOURCES WITH IMPROVED OPERATIONAL AND TECHNICAL CHARACTERISTICS
Description
The article discusses the new structural schematics and features of the DC voltage source with improved operational and technical characteristics
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TO THE QUESTION OF THE ESTIMATION OF THE SOLAR ENERGY
Description
It is known, that today, the one of the promising areas to effectively address issues of energy saving is applying renewable energy sources. Despite the fact that the current solar PV stations have the main drawback associated with the high cost, the prospects of their application in autonomous systems of electrosupply are evident when they are used in combined (hybrid) systems. In such systems, other types of renewable and traditional sources of electricity, which, in addition, produce heat, might be used as well. We have disclosed the prospects of the solar industry; also, for solar energy assessment we examined analytical expressions allowing defining the energy derived from solar radiation for specific surfaces. The calculations start with obtaining statistical data obtained at meteorological stations which keeps records of the intensity of the total (direct plus diffuse) radiation on a horizontal surface, and the intensity of direct solar radiation. The article presents features of the calculation taking into account the climatic and territorial conditions, on the example of the Krasnodar region. Considered calculation procedure is the first stage of designing solar power plants. Further, we determine the total capacity of electricity consumers, as well as the quality requirements for electricity, including continuity of supply, and then we get to the construction of the block diagram of the electricity supply. In this scheme, we must provide primary and backup power sources. We select the main equipment of solar power plant (solar panels, inverters and storage batteries)
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TO THE QUESTION OF THE ESTIMATION OF THE SOLAR ENERGY
Description
It is known that today one of the promising areas to effectively solve issues of energy saving, is the introduction of renewable energy sources. Despite the fact that the current solar PV stations have the main drawback associated with the high cost, the prospects of their application in autonomous systems of electrosupply are evident when they are used in combined (hybrid) systems. In such systems there may be other types of renewable and traditional sources of electricity. In addition, they produce heat. We have disclosed prospects of solar industry, and also, for solar energy assessment, we have examined analytical expressions allowing defining the energy derived from solar radiation for specific surfaces. Calculations start from obtaining statistical data gathered at meteorological stations which keeps records of the intensity of the total (direct plus diffuse) radiation on a horizontal surface, and the intensity of direct solar radiation. The article presents features of the calculation taking into account the climatic and territorial conditions on the example of the Krasnodar region. The given calculation procedure is the first stage for designing solar power plants. Further, the total capacity is determined by electricity consumers, as well as the quality requirements of electricity, including continuity of supply, embarking to the construction of the block diagram electricity supply. In this scheme, we must provide primary and backup power sources. It selects the main equipment of solar power plant (solar panels, inverters, storage batteries)
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COMBINED SYSTEMS OF ELECTRICITY SUPPLY BASED ON RENEWABLE ENERGY SOURCES
Description
Currently, there are widely used combined (hybrid) power systems in the world, made using renewable and conventional sources of energy. The article discusses a typical structural scheme of a combined system of electricity supply; it also shows the design and the characteristics of three types of structural circuit design of combined power systems and their main advantages and disadvantages. Peculiarities of the choice and calculation of parameters of the basic functional elements of the combined system have been presented. This study describes main characteristics of solar batteries and provides analytical expressions for the calculation of their main parameters. The main characteristics of batteries and the peculiarities of calculation of the capacity of storage batteries operating in autonomous systems have been listed. The features of selection of voltage inverters have shown that in addition to the nominal input and output voltage it is necessary to consider other characteristics that influence the work of autonomous power supply systems. It has been shown when it is desirable to use electromechanical generators to supply autonomous consumers. The types of structural solutions and the choice of the basic functional elements of combined power systems will increase the efficiency of their design
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CONVERTERS OF UNINTERRUPTIBLE POWER SUPPLY WITH IMPROVED PERFORMANCE
Description
The article discusses structural schematics power circuits and voltage stabilization systems of converters with improved operational and technical characteristics
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PERSPECTIVES AND FEATURES OF OPERATION OF SOLAR PV PLANTS
Description
Currently 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
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