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Purpose.To ensure maximum production of electric power by photovoltaic vacilities, in addition to using highly efficient photovoltaic modules equipped with solar radiation concentrators must use a highly effective power take-off system. This paper is inscribed to solving the problem of a highly effi...

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Bibliographic Details
Published in:Electronics and electromechanics 2016-01 (4), p.63
Main Authors: Zaitsev, R V, Kyrychenko, M V, Kholod, A V, Zaitseva, L V, Prokopenko, D S, Khrypunov, G S
Format: Article
Language:English
Subjects:
Circuit design
Circuit diagrams
Efficiency
Energy conversion efficiency
Illumination
Maximum power
Photovoltaic cells
Radiation
Solar radiation
Systems design
Takeoff
Voltage converters (DC to DC)
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Summary:Purpose.To ensure maximum production of electric power by photovoltaic vacilities, in addition to using highly efficient photovoltaic modules equipped with solar radiation concentrators must use a highly effective power take-off system. This paper is inscribed to solving the problem of a highly efficient and economic power take-off system development.Methodology.To solving the problem, we implemented three stages. On the first stage examines the dependence of electrical power from the intensity of the incident solar radiation. Based on this, the second stage is calculated the DC-DC converter resonant circuit and its working parameters, and developed circuit diagram of DC-DC converter. On the third stage, we carry out an analysis of power take-off system with step up DC-DC converter working.Results.In this paper, we carry out the analysis of working efficiency for photovoltaic facility power take-off system with step-up boost converter. The result of such analysis show that the efficiency of such system in a wide range of photovoltaic energy module illumination power is at 0.92, whereas the efficiency of classic power take-off systems does not exceed 0.70. Achieved results allow designing a circuit scheme of a controlled bridge resonant step-up converter with digital control. Proposed scheme will ensure reliable operation, fast and accurate location point of maximum power and conversion efficiency up to 0.96. Originality.Novelty of proposed power take-off system solution constitute in implementation of circuit with DC-DC converters, which as it shown by results of carrying out modeling is the most effective. Practical value.Practical implementation of proposed power take-off system design will allow reducing losses in connective wires and increasing the efficiency of such a system up to 92.5% in wide range of photovoltaic energy modules illumination.
ISSN:2074-272X
2309-3404
DOI:10.20998/2074-272X.2016.4.09