超大型航天器应用电推进系统方案设计  

Electric propulsion system for orbit keeping of large spacecraft

作　　者：田立成[1] 郭宁[1] 顾左[1] 张天平[1] 高俊[1] 孙小菁[1] 赵成仁[1] 

机构地区：[1]兰州空间技术物理研究所,真空低温技术与物理重点实验室,甘肃兰州730000

出　　处：《真空》2014年第5期68-73,共6页Vacuum

基　　金：真空低温技术与物理重点实验室基金项目支持(项目编号:9140C5504041001)

摘　　要：超大型航天器运行在(393±10)公里的近地轨道上,由于受到大气阻尼的减速作用,需要对超大型航天器实施轨道维持。LHT-100霍尔电推进系统是一种可用于超大型航天器轨道维持的高比冲小推力的电推进装置,采用电推进系统,超大型航天器年推进剂需求量可以降低到400kg以下,并需要对载有航天员的超大型航天器的安全性和可靠性进行评估。本文提出了超大型航天器轨道维持霍尔电推进系统方案设计,对霍尔推力器和贮气单元气瓶组件在轨可置换性进行了分析,最后对其可靠性和安全性进行了设计与分析,为我国超大型航天器采用LHT-100霍尔电推进系统进行轨道维持开展系统产品研制奠定了坚实的基础。Large spacecraft moves in the perigean orbit for 393±10 kilometers. Because of the speed-down of the atmosphere damp, it is of necessity for implementing the orbit keeping for large spacecraft. LHT-100 Hall electric propulsion system is an electric propulsion equipment which can provide high specific impulse and small thrust. It can be used in the orbit keeping for large spacecraft. Adopting the electric propulsion, the demand for propellant for each year could be reduced to 400 kilogram. It is necessary for us to evaluate the security and reliability of the large spacecraft with cosmonauts. This paper firstly puts up the project design of the Hall electric propulsion with the large spacecraft orbit keeping. Subsequently, this paper gives the analysis of the replacement on-orbit of Hall thruster and gas storage unit. In the end, this work analyzes the reliability and security of Hall electric propulsion, which establishes the foundation for the manufacture of the system production of LHT-100 Hall electric propulsion for orbit keeping of large spacecraft.

关 键 词：超大型航天器 轨道维持 LHT-100霍尔电推进系统 方案设计 

分 类 号：V439.2[航空宇航科学与技术—航空宇航推进理论与工程] V57