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针对采用100 V高压电池阵的空间站结构体带电现象,提出采用等离子体接触器进行主动电位控制方案,根据此方案建立包含接触器的空间站充放电等效电路模型,研究等离子体接触器对空间站充放电过程的影响及空间站结构因素对接触器钳位效果的影响,从而了解等离子体接触器与空间站悬浮电位的耦合特性。结果表明,无论空间站处于“快速充电”还是“正常充电”情况,等离子体接触器均能有效将空间站悬浮电位钳制在合理范围内。空间站结构因素中,电池阵暴露导体面积对接触器钳位过程影响较大,结构体暴露导体面积和结构体等效电容的影响可忽略。
Aiming at the charging phenomenon of space station structure with 100 V high voltage battery array, the active potential control scheme using plasma contactor is proposed. According to this solution, the equivalent circuit model of charge and discharge of space station including contactor is established, and the effect of plasma contactor on the charge of space station The influence of discharge process and the influence of space station structural factors on the contactor clamping effect, so as to understand the coupling characteristics of the plasma contactor and the space station floating potential. The results show that the plasma contactor effectively clamps the space station levitation potential within a reasonable range, regardless of whether the space station is in “fast charge” or “normal charge.” Among the structural factors of the space station, the exposed conductor area of the battery array greatly affects the process of contactor clamping, and the influence of the exposed conductor area of the structure body and the equivalent capacitance of the structure body is negligible.