摘要
地球静止轨道(GEO)卫星在轨运行期间,沉浸于具有一定能量和密度的空间等离子体之中,等离子体与卫星表面材料相互作用,将使卫星出现"表面充/放电效应",进而对星上电子系统产生影响,甚至发生电路故障,直接威胁整星安全。为防止GEO卫星在轨期间因等离子体造成的表面充放电导致卫星异常和故障,在GEO卫星的设计中,必须进行卫星表面电位分析、控制和试验验证等工作。文章根据卫星表面材料的基本参数和接地状态,采用工程分析方法对卫星表面充电电位进行分析,满足卫星工程设计急需。
During the operation of geosynchronous (GEO)satellite, it will suffer from surface charging effect when it encounters hot plasma environment. The electrostatic discharge caused by surface charging can influence the electronic equipments of the satellite, even the safety of the satellite. In order to mitigate the influence of surface charging, the proper analysis, control technique and ground test of surface charging should be performed. A differential potential analysis method for GEO satellite charging is introduced in this paper.
出处
《航天器工程》
2007年第6期93-97,共5页
Spacecraft Engineering