Scientific Journal of KubSAU

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

In article the basic lacks and characteristics of solar power stations, features of their design, work and prospect are considered

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)

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)