空间用太阳电池阵双回路型剩磁消除方法研究

A“double-back-wiring”remanence elimination method for space solar array

目前空间用太阳电池阵大都采用“镜面映射”及单回线型剩磁消除法来消除太阳电池阵的剩磁。镜面映射剩磁消除法无法消除线缆面未绞合线路部分的剩磁,同时会在相邻太阳电池串之间引入较大的电压差,空间应用时有静电放电失效隐患,且该方法会降低太阳电池板面积利用率。单回线型剩磁消除法无法消除平行于基板方向的剩磁。针对上述问题,设计了一种太阳电池阵采用双回路型剩磁消除法,通过正背面回路消除电路内部垂直于基板方向的剩磁,通过双回路消除平行于基板方向的剩磁。在剩磁最大限度消除的同时,采用合理设置太阳电池模块间间距等措施,从根本上降低在轨发生静电放电失效故障的概率。

The“mirror-mirror compensation”method and single-back-wiring method are mostly used to eliminate the remanence of solar array for space use.The“mirror-mirror compensation”method can’t eliminate the remanence of the untwisted lines on the cable surface.At the same time,a large voltage difference will be introduced between the solar cell strings.There is hidden danger of electrostatic discharge failure in space application,and this method will reduce the area utilization of solar panels.The single-back-wiring method can’t eliminate the remanence parallel to the panel.A double-back-wiring method was introduced,which can solve the problems above,eliminates the remanence perpendicular and parallels to the panel.Double-back-wiring could reduce the probability of electrostatic discharge failure of solar cell array on orbit by setting the spacing between different solar cell modules reasonably.