一种实现MPPT降压电路自启动的卫星电源系统

By combining the design of MPPT bypass circuit and bypass control level command, the self-starting and automatic mode switching of the satellite power system were realized, solving the problem that the MPPT control circuit could not start automatically due to the change in the output voltage of the solar cell array during the satellite orbit cycle, reducing system power consumption and improving reliability and safety.

CN116131425BActive Publication Date: 2026-07-17AEROSPACE DONGFANGHONG SATELLITE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AEROSPACE DONGFANGHONG SATELLITE
Filing Date
2022-11-11
Publication Date
2026-07-17

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Abstract

一种实现MPPT降压电路自启动的卫星电源系统，包括：太阳电池分阵、MPPT电路、蓄电池包、二次电源和电源下位机。其中MPPT电路包括：MPPT(峰值功率跟踪)旁路电路、MPPT降压电路、MPPT硬件控制电路、MPPT旁路控制电路；电源下位机输出OC门(集电极开路门)电平指令通过MPPT旁路控制电路控制MPPT旁路电路的导通和关断状态，实现太阳电池阵输出功率在DET(直接传输模式)和MPPT两种模式下切换，同时，两种模式的切换控制算法由电源下位机内的处理器模块实现。
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