Name
Hitskova Alina Olegovna
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: 5
To determine the feasibility of using PV systems we
should assess the economic efficiency of wind energy
in the region. At the same time, the first step should be
an analysis of upper-air and power characteristics of
the wind. The next stage is to determine the energy
source of wind power (theoretical, technical and
economic potential). The basic approach to the
calculation of economic indicators should include a
determination of the effectiveness of wind power
installations in competition with traditional energy
sources in a particular region. There are important
following indicators: the payback period and economic
efficiency. If the economic potential of wind power
satisfies the requirements, the next step is to study the
technical requirements applicable to wind power
stations. For a preliminary assessment of the terrain,
the article discloses a sequence of events that must be
performed to assess the effectiveness of the installation
of wind power systems. We have listed advantages and
disadvantages of the main types of wind power plants,
and other ramifications of choosing of basic functional
units. The considered in an article analytical
expressions for calculating the evaluation of economic
efficiency of wind energy, the technical requirements
for the basic parameters of wind turbines and their
main advantages, disadvantages and features the work
will allow at the design stage to carry out a preliminary
assessment of effectiveness of the wind power stations
for a particular region and locality, specific types
consumers in view of their modes of operation and the
quality requirements of electricity
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
WIND CHARACTERISTICS, FEATURES OF THE CALCULATION OF RESOURCES AND ECONOMIC EFFICIENCY OF WIND POWER
The article describes the main characteristics of the wind flow and also discusses the features of wind energy resource calculation and cost-effectiveness of wind power stations
The article describes the main merits, demerits and peculiarity of choice of electric power generators for wind power plants, as well as ways of stabilization their voltage
A promising is currently the use of asynchronous generators with capacitive excitation as a source of electricity in stand-alone power systems. Drive asynchronous generators may exercise as a thermal engine and wind wheel wind power plant or turbines of small hydropower plants. The article discusses the structural and schematics of voltage stabilizers and frequency of asynchronous generators with improved operational and technical specifications. Technical novelty of design solutions of the magnetic system and stabilizers asynchronous generator of electricity parameters confirmed by the patents for the invention of the Russian Federation. The proposed technical solution voltage stabilizer asynchronous generators, can reduce the weight of the block capacitors excitation and reactive power compensation, as well as to simplify the control system power circuit which has less power electronic devices. For wind power plants it is an important issue not only to stabilize the voltage of the generator, but also the frequency of the current. Recommend functionality stabilizer schemes parameters of electric power made for direct frequency converters with artificial and natural switching power electronic devices. It is also proposed as part of stabilization systems use single-phase voltage, three-phase transformers with rotating magnetic field, reduce the level of electromagnetic interference generated by power electronic devices for switching, enhance the efficiency and reliability of the stabilizer.