地球同步轨道高压太阳电池阵充放电效应研究

Charging and discharging effects on high-voltage solar array in GEO

摘要: 地球同步轨道（GEO）高压太阳电池阵表面静电放电（ESD）引起二次放电可能导致太阳电池阵永久性短路损坏。文章主要针对GEO高压太阳电池阵充放电效应问题，重点分析了高压太阳电池阵表面ESD和二次放电产生的物理过程，并利用负高压偏置方法开展了GEO高压太阳电池阵表面ESD和二次放电地面模拟试验。试验验证了反转电位梯度电场是导致GEO高压太阳电池阵表面产生ESD的触发因素之一，同时得到了GaAs高压太阳电池阵样品表面产生ESD和二次放电的电压阈值。

Abstract: This paper discusses the charging and discharging effects on high-voltage solar array with focus on the physical process of electrostatic discharge and secondary discharge. Ground simulation of electrostatic discharge and secondary discharge on GaAs solar array is carried out. The results show that the inverted potential gradient is a triggering factor for electrostatic discharge on solar cell arrays in GEO. The threshold voltages are also obtained for electrostatic discharge and secondary discharge on the surface of GaAs solar array sample.