Научная электронная библиотека ULRICH'S Periodicals Directory

Сибирский государственный университет
науки и технологий имени академика М.Ф. Решетнева

Сибирский аэрокосмический журнал
ISSN 2712-8970 (Print) ISSN 2782-5760 (on-line)

Сведения об образовательной организации

UDK UDC 620.92 Doi: 10.31772/2587-6066-2018-19-4-651-657
METHOD FOR CALCULATING THE ENERGY CHARACTERISTICS AND SOLAR BATTERY PARAMETERS OF HIGH-VOLTAGE POWER SUPPLY SYSTEMS
M. M. Chernaya
Tomsk State University of Control System and Radio Electronics, 40, Lenina Av., Tomsk, 634050, Russian Federation
One of the main tasks arising in power supply systems (PSS) of spacecraft (SC) design is the determination of rational structure in terms of providing consumers with electricity of the required quality. At the same time, a reasonable consumption of power generated by solar batteries (SB) and accumulator batteries (AB) should be realized in PSS. The choice of the PSS structure is based on the calculation and comparative analysis of PSS options, taking into account the adopted system performance criteria, the main ones being the energy and weight-dimension characteristics. For this purpose, the process of energy flows distribution in the PSS by forming a mathematical description of the PSS operating modes is carried out. In order to obtain the graphs of the SB generated power and to calculate SB parameters during the service life, a mathematical model of the SB based on the use of initial and experimental parameters of its photovoltaic elements of any area was developed. The SB model provides the required accuracy of I-V and V-W characteristics calculation for any given values of illumination and temperature. In the article the method for calculating the energy characteristics of PSS and SB parameters taking into account the possibility of its limitation at the maximum or minimum level was described. It is shown that the method allows to determine the ways of rational redistribution of energy flows in the systems being designed to improve its weightdimension characteristics by reducing the maximum design power of energy-converting equipment (ECE), which is achieved by forming a rational logic for applying the SB maximum power point tracking mode, in particular, when the spacecraft leaves the Earth's shadow. Energy balance in PSS is provided by applying correction coefficients. The calculation results obtained by the method are the basis for requirements for ECE and SB design in PSS and can be used by developers and manufacturers of onboard and ground PSS.
Keywords: spacecraft, power supply system, mathematical model of the solar battery, energy characteristics, maximum power point tracking mode.
References

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Chernaya Mariya Mikhailovna – Cand. Sc., research officer, Research Institute of space technologies, Tomsk

State University of Control Systems and Radioelectronics. Е-mail: cmm91@inbox.ru.


  METHOD FOR CALCULATING THE ENERGY CHARACTERISTICS AND SOLAR BATTERY PARAMETERS OF HIGH-VOLTAGE POWER SUPPLY SYSTEMS