Name
Uskov Anton Evgenyevich
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
Web site url
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Articles count: 16
Widespread in autonomous systems, including
uninterrupted power supply systems, there are power
static (electronic) convertors: rectifiers and inverters,
used to match the parameters of the electric power
source and the load; they also have a function of voltage
stabilizers. Important question is the calculation of key
performance criteria at the design stage: power losses,
efficiency, reliability, weight and size (for electrical
transport systems). The article discusses the
methodology of the simplified calculation of the basic
criteria of efficiency of inverters and rectifiers. There
are schematic electrical diagrams of power rectifiers
and inverters, and the basic analytical expression for a
simplified calculation of the basic criteria of efficiency
of the converters, including their output filters. Each
year, we improve the technical characteristics of the
probes using new element base, allowing reducing the
level of electromagnetic interference generated by
power electronic devices. We have also shown
perspective directions of the development of power
converter technology by using one-phase and threephase
transformers with rotating magnetic field in their
creation (therefore we increase reliability of operation
and efficiency). A promising direction is the
construction of converters and autonomous systems in a
modular complex, where (in addition to increased
system reliability) we simplify its operation, including
service
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)
Analysis of scientific literature has shown a promising
direction in energy saving and in increasing of
efficiency of power supplies remote from external
networks in Russia is the application of solar
photovoltaic power plants. The level of solar radiation
on the territory of Russia varies widely from 810
kWh/m2 per year in remote Northern areas to 1,400
kWh/m2 per year in southern areas. We have revealed
their main advantages and disadvantages of solar
photovoltaic power plants, as well as the purpose, basic
features, features selection and operation of inverters
and batteries. We have also given a generalized block
diagram of three types of solar photovoltaic power
plants: autonomous, standby, network. The peculiarities
of their work have been presented. To improve the
reliability of operation of solar power plants we need to
design them according to the modular principle.
Modular aggregation has to be applied for stand-alone
inverters, where the input and output filters, power
electronic circuit and system voltage regulation and
protection represent the functional module elements. It
is possible to increase significantly the reliability of
autonomous inverters and solar PV systems in the
complex, using one-phase and three-phase transformers
with rotating magnetic field in their design. The
advantages and the disadvantages, the peculiarities of
the solar PV plants discussed in the article will allow to
develop their structural and circuit designs with
improved maintenance characteristics in the future
The article considers the main types of wind and
solar electric installations, and provides a
comparative analysis of the renewable energy
potential of the Krasnodar region. Currently, people
of the Earth cannot live without electricity.
Production and consumption of electricity is
constantly increasing, and the cost of it is
constantly becoming more expensive. The cost of
oil production (cost to get oil out of the ground)
increases constantly. The cost of electricity is going
up because the cost of basic materials, such as
copper, is at an unprecedented high level. Such
alternative energy sources, such as solar and wind,
are real solutions to these problems, moreover, the
cost of "traditional" energy sources will only
increase. To date, the most popular and invest
renewable energy sources are the solar and wind
power. Solar energy in the Krasnodar region is
more profitable than wind one, despite the fact that
the production of solar installations is more
expensive. But every year the price of solar energy
is reduced and soon will be equal to the price of
wind energy, and science and technology do not
stand still, so when there is such an abundance of
sunlight in the Krasnodar region, the solar
installation will pay off much faster
In the article we have considered the basic advantages of the choice of parameters of static converters, as well as the basic classifications of static converters
Nowadays, for maintenance of uninterrupted electro supply we found the most actual using sources of re-newed power; however, their application for electro supply of agricultural consumers is limited to a line of ecological and economic problems of the accumulators connected first of all with use. In the article we present one of the variants of the decision of the designated problems
The article considers the main types of wind and
solar electric installations, and provides a
comparative analysis of the renewable energy
potential of the Krasnodar region. Currently,
humankind cannot live without electricity.
Production and consumption of electricity is
constantly increasing and the cost of it is constantly
becoming more expensive. The cost of oil
production (to get oil out of the ground) increases.
The cost of electricity is going up because the cost
of basic materials such as copper is at an
unprecedented high. Such alternatives energy
sources such as solar and wind are real solutions to
these problems, moreover, the cost of "traditional"
energy sources will only increase. To date, the most
popular and invest renewable energy sources are
the solar energy and the wind. The solar energy in
the Krasnodar region is more profitable than wind,
despite the fact that the production of solar
installations is more expensive. But every year, the
price of solar energy is being reduced and soon will
be equal to the price of wind energy, and science
and technology do not stand still, and considering
the abundance of sunlight in the Krasnodar region,
the solar installation will pay off much faster
In this article technical requirements to static converters are examined. We can treat as the basic parameters: efficiency and quality of a target voltage. Weight-dimensional parameters, reliability, maintainability are basic operational parameters, as well as target capacity, size of an starting and target voltage belong to key parameters of static converters. As a rule designing of converters is a uniform constructive complex. As at designing, time of an operating time until first failure is taken into account, time of guaranteed work of the separate elements included in the static converter, are determined on the statistical data. Failure of separate elements of parts of converters are possible because of internal (time of guaranteed work) and external (short circuits, overloads) factors. In the article we have offered the ways of reduction of influence of external factors (for example, we used high-speed automatic switches or iterative static converters in which parts of a power circuit were included in parallel). Using universal static converters allows raising some parameters of efficiency simultaneously. In the article we have also considered a scheme of the iterative converter with variable structure which allows (depending on start and target conditions or requirements) forming an output capacity of the required level and quality without constructive change
In the article, the general concepts and the maintenance
of total, technical and economic resource of solar power
are revealed. The advantages of solar power in comparison
with other kinds of energy are resulted. We have
shown, that currently the method of direct photoelectric
transformation is one of priority directions of
reception of solar electric power in the world. It is because
it provides the maximal ecological cleanliness of
transformation, an opportunity of reception of energy
practically in any area, significant service life and small
expenses for service. The structure and features of work
of solar photo-electric installations were listed as well.
The schemes of using photo cells and their voltage and
amperes characteristics, lacks of solar photo-electric
stations are resulted, basic of which are: high cost of
photo-electric converters and presence of accumulators,
and we have also offered recommendations on their
effective use. The basic analytical expressions for definition
of economic efficiency of solar photo-electric
stations are resulted. The considered features of the
work, the basic characteristics and the parameters of
solar photo-electric stations which will allow to increase
the efficiency of predesign works on development of
the combined (hybrid) stations, generating electric and
thermal energy, received from solar radiation
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)