空间站高压太阳电池阵静电放电特性研究
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摘要
我国空间站采用了高压太阳电池阵,其母线电压为100V。由于空间站运行于低地球轨道,在轨道低温稠密等离子体环境下高压太阳电池阵将经历复杂的静电放电过程,并诱发二次放电,导致空间站功率损失甚至能源丧失。本文针对空间站高压太阳电池阵工况及其所运行轨道等离子体环境特点,开展高压太阳阵静电放电特性试验,研究了太阳电池偏置电压,等离子体温度和密度对高压太阳电池静电放电的影响。研究结果表明高压太阳电池偏置电压为-70V时开始出现静电放电,且静电放电次数随着偏置电压的减小而增大,同时等离子体能量对高压太阳电池静电放电次数影响不大,而静电放电次数随着等离子体密度的增加而增加。
引文
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