火星尘埃对太阳电池阵的影响与电帘除尘研究

Experimental Study on Triple Junction Solar Cells Performance and Dust Removal Efficiency with Mars Dust

火星表面大量尘埃在太阳电池阵表面的累积将会导致其输出功率下降,甚至使太阳电池阵功能失效。近年来,电帘除尘方法被认为是在火星着陆任务中进行尘埃防护最有效的手段之一。本文开展了火星尘埃累积对三结砷化镓太阳电池性能影响的实验研究,得到了火星尘埃累积量与太阳电池电压、电流和相对输出功率数值模型;通过除尘技术分析,确定电帘除尘装置构型;依据制备得到的除尘电帘,对不同火星尘埃累积下电帘的除尘效率进行了研究,为火星着陆太阳电池阵遥测数据分析和开发自适应除尘太阳电池阵提供有力的技术支持。

In the future manned lunar landing,the solar array output power may be decreased or molfunction when the Mars dust accumulated on the surface of the solar array.In recent years,electric curtain dust removal method is considered an effective means for the Mars dust prevention.In this paper,the performance of triplejunction gallium arsenide solar cell was analysed as Mars dust accumulated on solar cell.From the experimental results,we obtained a trend exponential function between the relative output power and dust deposition mass.Next,the dust removal efficiency of electric curtain under different Mars dust accumulation mass was studied,and the optimum operating point of electric curtain dust removal device was obtained.The research will provide a strong technical support for adaptive dust solar array.