太阳电池阵样品等效电容的确定方法

Method for determining the equivalent capacitance of solar array sample

在实验室进行的等离子体环境下的静电充放电试验中,由于条件的限制,一般使用的太阳电池阵样品只有几十平方厘米大小,可以通过选用增加等效电容的方法来模拟实际的太阳电池阵。分析了太阳电池阵静电充放电的基本原理。通过现象分析,确定了影响太阳电池阵充放电的几个电容因素,并对各个电容进行了分析,给出了等效电容的计算方法。分析表明,影响太阳电池阵充放电的电容因素主要有两个方面,一是影响一次放电的电容,主要是玻璃盖片的电容;另一个是影响二次放电的电容,电池串间的电容起主要作用。

Limiting by the condition, the commonly used solar cell sample in the lab only has several ten square centimeters in the electro-static charging and discharging test under the plasma environment. It can use the method of adding equivalent capacitance to simulate the solar array. In this paper, it gave the principle of the electro-static charging and discharging of the solar array. Also, by analyzing phenomena and every capacitance, it confirmed the main factors that affected the electro-static charging and discharging of the solar array, and gave the method of calculating the equivalent capacitance. There are two factors： one is the capacitance of cover glasses, which affects the capacitance of the first discharging; the other is string capacitance of the solar cells, which affects the capacitance of the second discharging.