Electrostatic Discharge Effects on the High-voltage Solar Array  

作　　者：YUAN Qingyun SUN Yongwei CAO Hefei LIU Cunli 

机构地区：[1]Electromagnetic Environment Effect Key Laboratory, Mechanical Engineering College, Shijiazhuang 050003, China

出　　处：《高电压技术》2013年第10期2392-2397,共6页High Voltage Engineering

基　　金：Project supported by National Natural Science Foundation of China（51177173）, Elec- tromagnetic Environment Effect Key Laboratory Foundation（9140C87010313 JB34004）.

摘　　要：A certain number of charges are deposited on the surface of high-voltage solar array because of effects of space plasma,high-energy charged particles,and solar illumination,hence the surface is charged.Phenomena of electrostatic discharge(ESD) occur on the surface when the deposited charges exceed a threshold amount.In this paper,the mechanism of this ESD is discussed.The ground simulation experiment of the ESD using spacecraft material under surface charging is described,and a novel ESD protecting method for high-voltage solar array,i.e.an active protecting method based on the local strong electric field array is proposed.The results show that the reversal potential gradient field between the cover surface and the substrate materials of high-voltage solar array is a triggering factor for the ESD on the array.The threshold voltage for the ESD occurring on the surface is about 500 V.The charged particles could be deflected using the electric field active protecting method,and hence the ESD on the surface is avoided even when the voltage on the conductor array increases to a certain value.These results pave the way for further developing the protecting measures for high-voltage solar arrays.A certain number of charges are deposited on the surface of high-voltage solar array because of effects of space plasma, high-energy charged particles, and solar illumination, hence the surface is charged. Phenomena of electrostatic discharge （ESD） occur on the surface when the deposited charges exceed a threshold amount. In this paper, the mechanism of this ESD is discussed. The ground simula- tion experiment of the ESD using spacecraft material under surface charging is described, and a novel ESD protecting method for high-voltage solar array, i.e. an active protecting method based on the local strong electric field array is proposed. The results show that the reversal potential gradient field between the cover surface and the substrate materials of high-voltage solar array is a triggering factor for the ESD on the array. The threshold voltage for the ESD occurring on the surface is about 500 V. The charged particles could be deflected using the electric field active protecting method, and hence the ESD on the surface is avoided even when the voltage on the conductor array increases to a certain value. These results pave the way for further developing the protecting measures for high-voltage solar arrays.

关 键 词：静电放电 太阳电池阵 太阳能电池阵列 电效应 高能带电粒子 表面充电 高压 保护方法 

分 类 号：TM615[电气工程—电力系统及自动化] O441.1[理学—电磁学]