Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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GaInP/GaAs/Ge Triple Junction Solar Array Power Performance Evaluation on Geostationary Orbit

GaInP/GaAs/Ge 3중 접합 태양전지 배열기의 정지궤도에서 전력 성능 평가

  • Received : 2014.05.09
  • Accepted : 2014.11.13
  • Published : 2014.12.01
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Abstract

The satellite on geostationary orbit accommodates multiple payloads into a single spacecraft platform and launched in June 26, 2010. The electrical power required to the satellite during sunlight is generated by a solar array wing. The solar cells are the GaInP/GaAs/Ge Triple Junction cells named Gaget2 cells from RWE Space, which were based on a Spectrolab epitaxy. This paper evaluates solar array power performance at end of design life based on the trend analysis results for the flight data on geostationary orbit. The estimated solar array power performance at end of design life compares with the power performance provided by solar array manufacturer. The solar cells show nominal behavior without significant degradation through the trend analysis results.

정지궤도위성은 다수의 탑재체를 하나의 위성체 플랫폼에 탑재하고 2010년 6월 26일에 발사되었다. 태양기간 동안 인공위성에서 요구되는 전력은 태양전지 배열기 윙에서 생성된다. 태양전지는 Spectrolab사의 적층법을 사용한 RWE Space사의 Gaget 2로 명명되는 GaInP/GaAs/Ge 3중 접합 셀이다. 본 논문은 정지궤도 비행 데이터에 대한 경향을 분석한 결과를 바탕으로 설계수명 말기에서 태양전지 배열기의 전력 성능을 평가하였다. 설계수명 말기에서 예측한 태양전지 배열기의 전력 성능은 태양전지 배열기 제작사가 제공한 전력 성능과 비교하였다. 경향분석 결과를 통해 태양전지 셀은 현저한 성능감소 없이 정상적으로 동작되고 있다.

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References

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