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

  • 제42권2호
  • /
  • Pages.150-157
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  • 2014
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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정지궤도 인공위성 리튬-이온 배터리 성능 해석을 위한 모델링

A Modeling for Li-Ion Battery Performance Analysis of GEO Satellite

  • 투고 : 2013.08.29
  • 심사 : 2014.01.21
  • 발행 : 2014.02.01
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⟨ 이전 논문 다음 논문 ⟩

초록

리튬-이온 배터리는 이전의 전기 화학 배터리에 비교해 무게, 열 소산 및 자가 방전 등의 장점으로 인해 현재 대부분의 인공위성에서 사용되고 있다. 리튬-이온 배터리의 성능 해석 모델은 새로운 위성 전력계 설계를 지원하기 위해 필요하다. 본 논문은 정지궤도위성 전력계 설계 및 에너지 밸런스 해석에 활용하기 위해 리튬-이온 배터리 성능 해석 모델을 개발하였다. 해석 모델은 위성체 버스 전력, 태양전지배열기 전력 및 배터리 온도를 입력 받고 배터리 전압, 충방전 전류, 테이퍼 지수, 충전 상태 및 소산 전력을 제공한다. 성능 해석 모델의 결과는 모델을 검증하기 위해 정지궤도위성의 비행 데이터와 비교 분석하였다. 비교된 결과는 비행 데이터와 현저한 차이가 없었다.

Li-Ion battery is used in the most satellites now due to advantages such as weight, thermal dissipation and self discharge compared to the previous generations of electrochemical batteries. The performance analysis model of the Li-Ion battery is needed to aid the design of new satellite electrical power subsystem. This paper develops the performance analysis model of the Li-Ion battery to apply to the electrical power subsystem design and energy balance analysis on geostationary orbit. The analysis model receives the satellite bus power, solar array power and battery temperature and gives the battery voltage, charge and discharge currents, taper index, state of charge and power dissipation. The results from the performance analysis are compared and analyzed with the flight data to verify the model. The compared results show satisfactory without significant difference with the flight data.

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참고문헌

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