在线阅读 --自然科学版 2016年6期《空间太阳电池阵静电放电数值模拟》
空间太阳电池阵静电放电数值模拟--[在线阅读]
蒙志成, 孙永卫, 原青云, 刘浩
军械工程学院 静电与电磁防护研究所, 河北 石家庄 050003
起止页码: 493--499页
DOI: 10.13763/j.cnki.jhebnu.nse.2016.06.007
摘要
空间太阳电池阵静电放电引起的新失效模式会对太阳电池阵带来不良影响.根据等效电路原理建立空间太阳电池阵静电放电模型,通过改变不同元件参数模拟不同情况下空间太阳电池阵静电放电的情况,得到空间太阳电池阵一次放电和二次放电的脉冲电流波形.针对一般带电情况并考虑常规太阳电池阵电源参数进行数值模拟,在空间太阳电池阵发生一次放电时,放电脉宽为2~4μs,放电电流幅值为5~10A.当一次放电通路中电阻值一定时,随着电感的增大,电流脉冲幅值逐渐减小,振荡逐渐增多,脉宽逐渐增大.当一次放电通路中电感值一定时,随着电阻的增大,电流脉冲幅值逐渐减小,振荡变化幅度不大,脉宽逐渐减小.在空间太阳电池阵发生二次放电时,放电脉宽为3~4ms,放电电流幅值为0.5~1.0A.当二次放电通路中电阻值一定时,随着电感的增大,电流脉冲幅值变化不大,振荡逐渐增多,脉宽逐渐增大.研究结果可对空间太阳电池阵安全防护提供一定的理论依据.

Numerical Simulation of Electrostatic Discharge of Space Solar Cell Array
MENG Zhicheng, SUN Yongwei, YUAN Qingyun, LIU Hao
Institute of Electrostatic and Electromagnetic Protection, Ordnance Engineering College, Hebei Shijiazhuang 050003, China
Abstract:
The new failure mode caused by electrostatic discharge in the space solar cell arrays will bring bad influences to the solar cell arrays.According to the principle of equivalent circuit,the electrostatic discharge model of space solar cell arrays is established.By changing the parameters of different components,the electrostatic discharge of solar cells in different conditions is simulated.The pulse current waveforms of the primary discharge and the secondary discharge of the solar cell arrays are obtained.The numerical simulation is carried out for the general charged condition and considering the conventional power supply parameters of the solar cell arrays.In the primary discharge of space solar cells,the discharge pulse width is between 2 microseconds and 4 microseconds,the discharge current amplitude is between 5A and 10A.When the resistance value of the primary discharge path is constant,with the increase of inductance,the amplitude of current pulse decreases gradually,oscillation increases gradually,the pulse width increases gradually.When the inductance value of the primary discharge path is constant,with the increase of resistance,the amplitude of current pulse decreases gradually,oscillation amplitude is small,pulse width decreases gradually.In the secondary discharge of space solar cells,the discharge pulse width is between 3 milliseconds and 4 milliseconds,the discharge current amplitude is between 0.5A and 1A.When the resistance value of the secondary discharge path is constant,with the increase of inductance,the change of current pulse amplitude is small,oscillation increases gradually,the pulse width increases gradually.The results of research can provide a theoretical basis for the safety protection of space solar arrays.

收稿日期: 2015-11-18
基金项目: 国家自然科学基金(51577190)

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