航天器工程2025，Vol.34Issue(1)：49-56,8.DOI:10.3969/j.issn.1673-8748.2025.01.009
频繁穿越范艾伦辐射带的卫星空间环境分析与防护
Space Environment Analysis and Protection for Satellite Frequently Traversing Van Allen Belts
呼延奇 1侯卫国 2魏强 2王敏 2梁新刚 2李大伟2
作者信息
- 1. 北京空间飞行器总体设计部,北京 100094
- 2. 中国空间技术研究院通信与导航卫星总体部,北京 100094
- 折叠
摘要
Abstract
Based on the low-cost design concept,APSTAR-6E satellite is launched by the CZ-2C rocket,which is usually used to launch low-orbit satellites.The satellite adopts a comprehensive solution with the all-electric propulsion platform and an independent propellant module.It is the Chinese first all-electric propulsion communication satellite to independently transfer from LEO to GEO orbit.During the orbit transfer,the APSTAR-6E satellite frequently crossed the Van Allen radiation belt and is faced with complex and harsh space radiation environment.Therefore,it is necessary to carry out space environment analysis and protection design according to the characteristics of space environment effects,and optimize the orbit transfer strategy.The analy-sis results show that the total ionization dose and displacement damage of optoelectronic devices suffered by the APSTAR-6E satellite are significantly worse than those suffered by conventional GEO communication satellites,especially the problem of radiation attenuation of solar array output power is particularly prominent.Accordingly,the APSTAR-6E satellite has carried out targeted space environmental protection design.On the basis of the actual flight verification of APSTAR-6E satellite,the differences of solar cell radiation attenuation of subsequent electric propulsion satellites using different orbit transfer strategies are discussed.The results show that by selecting the large elliptical orbit with higher apogee height as the starting orbit of the electric propulsion orbit transfer,and optimizing the or-bital transfer strategy to raise the satellite above the inner radiation belt intensity center as soon as possi-ble,the radiation attenuation of the satellite solar array can be effectively reduced.关键词
电推变轨/辐射带/分析与防护Key words
electric propulsion orbit transfer/radiation belt/analysis and protection分类
航空航天引用本文复制引用
呼延奇,侯卫国,魏强,王敏,梁新刚,李大伟..频繁穿越范艾伦辐射带的卫星空间环境分析与防护[J].航天器工程,2025,34(1):49-56,8.
