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
In the article we present generalized block diagrams of stationary and transport systems of uninterrupted electrosupply, as well as their maintenance and the basic operating modes providing uninterrupted electrosupply of crucial consumers. Classification of systems of uninterrupted electrosupply is resulted. The basic classification attributes of systems of uninterrupted electrosupply are their assignment for stationary or transport consumers of the electric power, types of used basic, reserve and emergency sources and converters of the electric power. Besides systems of uninterrupted electrosupply can be classified under circuits of connection to consumers of the electric power, their division on a sort of a current (constant, variable, high-frequency), breaks in electrosupply, to type of the switching equipment and so on. For the estimation of the efficiency of systems of uninterrupted electrosupply it is offered to use the following criteria of efficiency: Power and weight-dimension parameters, parameters of reliability, quality of the electric power and cost. Analytical expressions for calculation of parameters of the estimation of efficiency of systems of uninterrupted electrosupply are resulted. The classification of systems of uninterrupted electrosupply suggested in article and modes of their work, and also the basic criteria of an estimation of efficiency will allow raising efficiency of pre-design works on creation of systems with improved customer characteristics with use of modern element base
In the article the description of the basic kinds of sources of the electric power, their merits and de-merits is resulted. Nowadays independent sources of the electric power on static converters are the most universal. In spite of the fact that electronic devices are capable to provide reliable enough electrosupply with consumers of various capacities and character of loading, however their bad fitness to high - dynamic loadings still is. Therefore elec-tromachine converters remain the basic source of the electric power, as the steadiest to overloads. So even in transport independent sources, for which weight-dimensions parameters are most critical, electromachine converters are used. In the article typical circuits of electromachine converters with synchronous and asynchronous generators, their advantages and lacks in relation to static converters are resulted. And as methods of increase of their efficiency, for example work on the part frequency, are resulted. For the sources executed on static converters, use of circuits with an intermediate link of the part frequency is most perspective, which, in its turn, allows to lower weight-dimensions parameters. As a rule, static converters have bad quality of a target voltage, therefore for increase of its quality use various target electric filters. Controlled filters whit electronic elements in their structure have the greatest efficiency
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 describes scopes and efficiency of application of solar photo-electric installations on the territory of the Krasnodar region, and as definitions of their key parameters
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
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 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
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
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
The article discusses the structural and control systems schematics and voltage stabilization in phase bridge circuits solar power inverters with PWM output voltage and improved performance