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严密监视卫星能源系统在地影期的工作状态对卫星安全至关重要。为了评估国内某GSO(地球同步轨道)卫星能源分系统在地影期的工作状态,根据电压、电流变化分析,给出了一次电源在进出地影阶段的工作过程,计算得到了蓄电池组电容量、充放电比和放电深度在地影期的变化曲线。结果表明:充电容量、放电容量和放电深度在地影期随日期推移先增大再减小,在秋分/春分时达到最大值;充放电比在地影期间则几乎保持稳定。本文工作及结论可为后续地影期能源监视提供参考依据。
Tight surveillance of satellite energy systems working in the shadow phase is crucial to satellite security. In order to evaluate the operation status of a GSO (Geosynchronous orbit) satellite energy subsystem in the shadow period, a working process of power supply in and out of the shadow phase is given based on the analysis of voltage and current variations. The calculation of the battery capacity , Charge-discharge ratio and discharge depth in the shadow of the curve. The results show that the charge capacity, discharge capacity and depth of discharge increase firstly and then decrease with the lapse of time and reach the maximum at the fall / spring time points. The charge-discharge ratio is almost stable during the period of the ground shadow. The work and conclusion of this paper can provide reference for energy monitoring in subsequent shadow periods.