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ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2024, Vol. 21, No. 6, pp. 67-76

Development of a cooling system for a photovoltaic battery with concentrators for the AIST-2 type Earth remote sensing satellite

M.R. Mordanov 1 , S.L. Safronov 1 , E.S. Khnyryova 1 
1 Samara National Research University, Samara, Russia
Accepted: 31.10.2024
DOI: 10.21046/2070-7401-2024-21-6-67-76
The development of advanced Earth remote sensing satellites requires increased energy efficiency from their solar power systems over a wide range of operating temperatures. By improving this efficiency, Earth remote sensing satellites can increase their energy capacity while maintaining weight and size constraints. In challenging space environments, solar panels need to generate a high specific power output with minimal mass. Research is ongoing to explore the use of cutting-edge photovoltaic (PV) technology in small satellites for Earth observation based on linear Fresnel lens systems. To address the problem of excessive heat produced by PV cells, a complex thermal management system has been developed to reduce temperatures to 75 °C. This approach aims to significantly improve the overall efficiency of the solar power system. A method for determining design parameters for the thermal management system is currently being developed. A simulation of the temperature distribution for a modified PV battery was conducted. The simulation revealed heating of the PV cells during each stage of operation. Currently, a design for a thermal management system for modified PV battery based on a prototype small spacecraft is being developed. The design meets the specified requirements. The possibility of installing an improved battery in a small satellite for Earth remote sensing was analyzed. The analysis indicates that it is feasible to install an upgraded photovoltaic battery with minor modifications.
Keywords: thermal management system, power supply system, solar battery, concentrator, photoelectric converter
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