摘要
随着我国卫星长寿命高性能的需求,离子电推进器的使用也将成为一种必然趋势。针对中、高轨道卫星离子电推进器采用的高压电缆在高能电子辐照下引发的内带电效应,导致电推进系统工作故障的问题,测试了高压电缆在1.5 MeV高能电子辐照下产生电荷积累和不同高工作电压下共同作用产生的不同幅值静电放电脉冲信号,同时,采用蒙特卡洛方法分析高能电子沉积的位置,并采用有限元法分析高压电缆在高工作电压下的内部电场的分布和变化,为离子电推进器的高压电缆内带电防护技术奠定基础。
With the long-life and high-performance of our satellites,using plasma electron propulsion will become inevitable.The high-voltage cable of the ion thruster is used on the satellite in MEO and GEO,which produces charge accumulation triggered electrostatic discharge by high-energy electron irradiation,thus will lead to problems of the ion thruster system.In this paper,the electrostatic discharge signal is tested under the integrated effects of the 1.5MeV monoenergetic electron beam irradiation and different high working voltage.At the same time,Monte Carlo method is used to analyze high-energy electronic deposit location,and finite element method is used to analyze internal electric field distribution and change by the high voltage,which will make the foundation for high voltage cable internal charging protection technology.
出处
《真空与低温》
2015年第5期269-272,共4页
Vacuum and Cryogenics
基金
国家自然科学基金资助项目(11305084)
关键词
内带电效应
静电放电
蒙特卡洛方法
有限元法
internal charging effect
electrostatic discharge
Monte-Carlo method
finite element method
