月面巡视器太阳能帆板功率衰减特性研究

Study on Power Attenuation Characteristics of Solar Panels for Lunar Rovers

太阳能帆板的功率衰减特性分析,对地外天体表面探测器的功率平衡、电源系统健康管理以及长寿命在轨管理有重要意义。通过对月面巡视器在轨运行第2到11月昼的电流遥测进行研究,提出了一种基于有限遥测的太阳能帆板功率衰减特性分析方法。首先利用一种滞环的方法对大量的电流遥测进行数据处理;然后进行日月距离和太阳入射角的归一化,通过数据拟合计算,得出落月第一年太阳能帆板功率衰减约为2 5%,并利用巡视器历次月昼唤醒时刻的太阳入射角变化情况验证了该方法的有效性,对地外天体的太阳能帆板功率衰减特性计算提供一定参考。

The analysis of the power attenuation characteristics of solar panels is of great significance for the power balance,power system health management,and long life on-orbit management of extraterrestrial surface probers Based on the study of the current telemetry during the 2nd to 11th months of lunar patrol,a method is proposed to analyze the power attenuation characteristics of solar panels based on limited telemetry A hysteresis loop method is used to process a large number of current telemetry data,and then the Sun-Moon distance and the angle of solar incidence are normalized by data fitting calculation The results show that the power attenuation of the solar panel is about 2 5% in the first year of the falling moon The effectiveness of the method is verified by the variation of the solar incident angle at the waking time of the day in the past months The proposed method can provide some references for the power attenuation characteristics of solar panels of extraterrestrial objects.