| 航天器地面测试供电系统间隙工作机理分析 |
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| 引用本文： | 潘瑞雪. 航天器地面测试供电系统间隙工作机理分析[J]. 国际商务研究, 2010, 50(8) |
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| 作者姓名： | 潘瑞雪 |
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| 作者单位： | 上海卫星工程研究所，上海 200240 |
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| 摘 要： | 针对航天器在地面加、断电试验过程中，单机设备发生间隙振荡故障机理进行了分析。理论分析和地面模拟试验验证结果显示，由于地面供电系统的等效电容和电阻过大，供电线路与单机内的DC-DC变换器固有的欠压锁定（UVLO）回差不匹配，是导致出现间隙工作状态的主要原因。通过实验验证间隙工作的存在，给出了一些解决问题的建议。分析结论为综合解决航天器地面测试中多次出现的故障现象提供了理论分析支撑。
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| 关 键 词： | 航天器；地面测试系统；供电系统；间隙振荡；欠电压锁定 |
Interval Working Mechanism Analysis of Power Supply System for Spacecraft Ground Test |
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| PAN Rui-xue. Interval Working Mechanism Analysis of Power Supply System for Spacecraft Ground Test[J]. International Business Research, 2010, 50(8) |
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| Authors: | PAN Rui-xue |
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| Abstract: | This paper analyses the mechanism of interval working among units during the ground power on/off test for spacecraft. Theoretical analysis and ground simulation test demonstrate that it is the mismatch of the inherent UVLO(Under Voltage Locked Out) hysteresis of DC/DC converter in power line and single unit that results in the interval working state. The existence of interval working phenomenon is verified through experiment and some suggestions are given. The conclusion can provide theoretical analysis support for comprehensively solve the faults appearing repeatedly during the ground test for spacecraft. |
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| Keywords: | spacecraft ground test system power supply interval oscillation under voltage locked out(UVLO) |
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