高压太阳电池阵静电放电产生脉冲信号的特性研究  

Characteristics of electrostatic discharge signal on the high voltage solar array

作　　者：李存惠[1] 柳青[2] 杨生胜[1] 苗育君 郑阔海[1] 秦晓刚[1] LI Cunhui;LIU Qing;YANG Shengsheng;MIAO Yujun;ZHENG Kuohai;QIN Xiaogang(Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Space Technology Physics;Science and Technology on Material Performance Evaluation in Space Environment Laboratory,Lanzhou Institute of Space Technology Physics: 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]兰州空间技术物理研究所空间环境材料行为及评价技术重点实验室,兰州730000

出　　处：《航天器环境工程》2017年第2期190-194,共5页Spacecraft Environment Engineering

基　　金：国家重点基础研究发展计划项目(973计划)(编号:613211)

摘　　要：研究高压太阳电池阵静电放电产生脉冲信号的特性,有助于深入了解太阳电池阵充放电形成机制。在试验中,利用电子枪模拟GEO空间带电环境,辐照太阳电池样品表面。利用电流探头CT-2、单极子天线和数字存储示波器测量静电放电所产生的脉冲电流、辐射电场并记录其波形。试验结果表明:太阳电池在静电放电过程中产生了脉冲宽度为几μs的瞬态电流,其峰值幅度为几A;辐射电场的脉冲信号持续时间几百ns至几个μs,其峰值幅度达数百V/m。脉冲信号的时域特征表现为脉冲群,其波形具有陡峭的前沿,能量分布的频率范围主要集中在0.1~50 MHz之间。最后根据上述研究对在轨静电放电测试仪的设计提出建议。This paper studies the characteristics of the time and frequency domains of solar arrays duringelectrostatic discharge,to improve the understanding as well as the technical support of the charge-dischargemechanism of solar arrays.In the test,the main structure of the solar arrays is isolated from the ground of thevacuum chamber and an electron gun is used to simulate the electrified environmental extremes in the geostationaryearth orbit.Specimens are electronically irradiated and charged by the electron gun.The current strength andshape are recorded,as well as the electrical field,by the monopoles,the CT-2current detector(1mV/mA)and theTerkDPO4104digital storage oscilloscope.The electrostatic discharge is initiated by the electrostatic potential ofthe surface charged solar arrays.A transient current is activated during the discharge and its pulse width reaches10-6s.A degraded ring-wave current can be observed and the detected pulse peak reaches several Amperes.Thesolar array electrostatic discharge field sustains from10-7to10-6s.The irradiation field strength is103V/m andthe spectrum ranges up to102MHz.A pulse cluster is the characteristics of the solar array time domain,showinga steep-front,with the frequency ranging from0.1~50MHz.Suggestions are made accordingly with regard to theproperty of onboard ESD test instruments.

关 键 词：太阳电池阵 静电放电 辐射电场 试验研究 时域分析 频域分析 

分 类 号：V442[航空宇航科学与技术—飞行器设计]