离子推力器栅极非预期电击穿评述  

Study of unexpected electric breakdowns on the grid of ion thruster

作　　者：冉文亮 张天平[1,2] 赵志伟 李璇 RAN Wenliang;ZHANG Tianping;ZHAO Zhiwei;LI Xuan(Science and Technology on Vacuum Technology and Physics Laboratory,Lanzhou Institute of Physics;Key Laboratory of Space Electric Propulsion Technology of Gansu Province:Lanzhou 730000,China)

机构地区：[1]兰州空间技术物理研究所真空技术与物理重点实验室 [2]甘肃省空间电推进技术重点实验室,兰州730000

出　　处：《航天器环境工程》2022年第3期326-332,共7页Spacecraft Environment Engineering

摘　　要：离子推力器栅极组件易发生非预期电击穿,不但影响离子推力器的工作稳定性与可靠性,还会对推力器栅极组件和电源造成严重危害,甚至导致其失效。文章从离子推力器地面试验现象出发,归纳评估非预期电击穿的击穿特性及机理,并在此基础上归纳评估不同电击穿类型及其危害性,最后给出离子电推进电击穿的后续研究建议。The ion thruster grid components are prone to unexpected electric breakdown, which not only affects the working stability and the reliability of the ion thruster, but also seriously affects the thruster’s grid components and power supply, and may even lead to its failure. This paper analyzes the breakdown characteristics and the mechanism of unexpected electric breakdown based on the obserbations in the ion electric propulsion test. On this basis, the different types of electric breakdown and their harmfulness are discussed.Finally, recommendations are proposed for the follow-up research of the electric breakdown of ion thrusters.

关 键 词：离子推力器 非预期电击穿 真空放电 低气压放电 放电抑制 

分 类 号：V439.4[航空宇航科学与技术—航空宇航推进理论与工程]