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Failure Analysis of Solar Array Regulator Controller for Charging Satellite Battery  

Yang, JeongHwan (한국항공우주연구원)
Park, JeongEon (한국항공우주연구원)
Yun, SeokTeak (한국항공우주연구원)
Publication Information
Journal of Satellite, Information and Communications / v.12, no.4, 2017 , pp. 67-71 More about this Journal
Abstract
A solar array is main electrical energy source for Low-Earth-Orbit(LEO) satellite. The solar array cannot generate electrical energy during eclipse period, a battery supply electrical energy to the satellite. The electrical power of the solar array is changed in accordance with operating voltage and the solar array has the maximum power point. The solar array regulator makes the solar array supply electrical energy to the satellite and charge the battery. The solar array is connected to the solar array regulator input and the battery is connected to the solar array regulator output. The solar array regulator consists 2 of 3 hot redundant. One solar array regulator contains 3 DC-DC converters, and the solar array regulator operates stably even if the failure occur in one DC-DC converter. In this paper, the solar array regulator, the battery and the solar array operation is analyzed when the failure occur in one DC-DC converter.
Keywords
DC-DC power converters; solar array regulator; EPS; Satellite Power; Controller; Failure;
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  • Reference
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