论文部分内容阅读
电推力器工作时,氙气供气管路上必须设置气路电绝缘器抑制因低气压放电引起的击穿,以确保电推力器正常工作,并避免卫星结构带电。通过气路电绝缘器工况分析,在帕邢放电原理基础上,对提出的几种气路电绝缘器结构方案开展了对比分析。考虑空间应用环境、高可靠和小型轻质化要求,并结合工作电压等条件,重点对多级电压分割绝缘结构进行了设计分析。对不同级数的气路电绝缘器结构样件进行了试验验证。结果表明该设计结构能够满足当前电推力器气路电绝缘要求。该研究成果可推广应用于更高工作电压和更大气体流率的气路电绝缘器结构设计。
Electric thrusters work, the xenon gas supply line must be installed on the gas line electrical insulator suppress the breakdown caused by low-pressure discharge to ensure the normal operation of the electric thruster, and to avoid the satellite structure charged. Based on the analysis of Paschen discharge principle, several gas path isolator structures proposed are analyzed and compared. Considering the space application environment, high reliability and small lightweight requirements, combined with the working voltage and other conditions, focusing on the multi-level voltage division of the insulation structure design and analysis. The different series of gas-phase electrical insulator structural samples were tested and verified. The results show that the design structure can meet the current electrical thruster gas insulation requirements. The results of this study can be extended to the structure design of gas-phase electrical insulator applied to higher working voltage and larger gas flow rate.